Automatic fire hose retrieving and arranging device

Abstract

An automatic fire hose retrieving and arranging device, belonging to the technical field of fire-fighting apparatuses, and comprising: a side plate fixing frame (1), detachably connected to a side plate of a hose storage compartment or a side plate of an equipment compartment of a fire-fighting truck; a hand-held hose retrieving mechanism mounting frame (2) and a mounting frame reciprocating displacement mechanism (3), the hand-held hose retrieving mechanism mounting frame being fixed on the upper part of the mounting frame reciprocating displacement mechanism, and the mounting frame reciprocating displacement mechanism being arranged on the side plate fixing frame and forming a sliding pair with the side plate fixing frame; a reciprocating displacement frame driving mechanism (4), arranged on the side plate fixing frame and fitting the mounting frame reciprocating displacement mechanism; a hand-held hose retrieving mechanism (5), detachably arranged on the hand-held hose retrieving mechanism mounting frame; and a roll-cage hose pressing mechanism (6), arranged on the hand-held hose retrieving mechanism. The present invention has the advantages of exhibiting good adaptability to different application environments and an ideal automation effect, and smoothly ensuring automatic retrieval and arrangement of fire hoses.

Description

An automatic fire hose reel device Technical Field

[0001] This invention belongs to the field of fire protection equipment technology, and specifically relates to an automatic fire hose reeling device. Background Technology

[0002] Fire hoses are essential equipment used in fire rescue operations, such as fire fighting and disaster relief, to transport high-pressure water, foam, and other flame-retardant liquids. After dispatching an emergency and after the fire fighting and disaster relief mission is completed, the fire hoses previously laid on the ground and / or other carriers need to be retrieved into the hose storage compartment of the fire hose truck.

[0003] If firefighters manually retrieve fire hoses, the process is extremely laborious and time-consuming. This is because fire hoses typically travel long distances during firefighting and rescue operations, especially when the number of fire hydrants is limited or nonexistent, the fire scene is far from water sources such as rivers or ponds, and the water tank capacity of fire trucks is insufficient for firefighting needs. In such cases, the water intake of the fire hose must be extended to the aforementioned river or pond, resulting in fire hoses reaching hundreds or even thousands of meters in length. Therefore, the significant advantage of automated hose retrieval, which simultaneously and systematically lays the hose in an S-shaped loop within the hose storage tank, is that it significantly reduces the workload of firefighters and improves retrieval efficiency, saving time. The aforementioned fire truck with hoses refers to a special fire truck that integrates functions such as hose storage, transportation, laying, and retrieval. The automatic hose reeling and organizing device involved in this application is mainly, but not absolutely limited to, being used on the aforementioned fire truck with hoses. Furthermore, for the sake of brevity, hose reeling and organizing can be combined into the term "hose reeling and organizing."

[0004] Technical information related to automatic fire hose reel devices can be found in publicly available Chinese patent documents. For example, CN101513557B recommends a "fire hose reel mechanism" and CN101507868B provides a "fire hose straightening device." A typical example is CN207482997U, which describes a "combined fire hose reel device." According to paragraph 0018 of the patent's specification, during reeling, one end of the hose, or folded in half, is passed between a pair of squeezing rollers, then around a tension roller and engaged with a clamping rod. The drive motor is activated to drive the roller shaft, causing the hose to wind onto the shaft. After winding, the coiled hose is removed from the shaft. Another example is CN208700324U, which discloses an "automatic fire hose reel device," where the hose is cleaned by a roller brush before being wound onto the reel. While the aforementioned patents each have their own technical effects described in the technical effects section of their specifications, they only address situations where the length of the hose is relatively limited and there is no hose joint (also called a "hose connector") connecting two adjacent hoses end-to-end. This is because conventional fire hoses come in lengths of 10m, 15m, 20m, 25m, 30m, or 45m. However, as mentioned earlier, when the water inlet (i.e., the water intake) of the fire hose is far from the fire scene, the aforementioned hose joint connects two adjacent hoses. Therefore, when encountering a hose joint, the aforementioned patented structure cannot successfully wind the hose, thus presenting a limitation in practical use. Furthermore, fire hoses are typically stored in sufficient quantities in hose storage compartments that fall under the category of fire hose fire trucks. Typical examples of such fire trucks include the invention patents granted by the applicant, CN103785125B (Fire Hose Retrieval and Laying Fire Truck) and CN103751931B (Automatic Fire Hose Laying Fire Truck). Supplying fire hoses retrieved by an automatic fire hose retrieving device, similar to that described in CN103785125B, to allow CN103751931B to orderly lay them in the hose storage compartment would also be of positive significance.

[0005] Most existing automatic fire hose reeling devices, including the patents mentioned above, are designed for large-diameter fire hoses with a DN (nominal diameter) of 300mm or more and employ electronic sensor automatic control technology. However, there are currently no automatic hose reeling and organizing devices for small-diameter fire hoses such as DN40, DN50, and DN65mm. Furthermore, the electronic sensor automatic control technology is not reliable enough in complex environments such as forests and mountains, and cannot fully meet the needs of fire emergency response. Therefore, exploring and developing a highly efficient and labor-saving mechanical automatic hose reeling and organizing device suitable for complex environments such as forests and mountains is of great significance. The technical solution described below arose in this context. Summary of the Invention

[0006] The objective of this invention is to provide an automatic fire hose reeling device that can meet the usage requirements of both conventional environments and complex environments such as forests and mountains, thus demonstrating good adaptability to different application environments; facilitates stable and reliable hose reeling and folding in the hose storage compartment while saving manpower, time, and effort, thereby achieving ideal automation; and provides good adaptability to hose joints, thus avoiding interference from hose joints during the hose reeling process.

[0007] The present invention achieves its objective by providing an automatic fire hose reeling device, comprising: a side panel fixing frame, which is detachably connected to the side panel of a fire truck's hose storage compartment or equipment box in use; a portable hose reeling mechanism mounting frame and a mounting frame reciprocating mechanism, the portable hose reeling mechanism mounting frame being fixed to the upper part of the mounting frame reciprocating mechanism, and the mounting frame reciprocating mechanism being slidably disposed on the side panel fixing frame and forming a sliding pair with the side panel fixing frame; a reciprocating frame driving mechanism, which is disposed on the side panel fixing frame and cooperates with the mounting frame reciprocating mechanism; a portable hose reeling mechanism, which is detachably connected to the portable hose reeling mechanism mounting frame; and a roller-type hose pressing mechanism, which is disposed on the portable hose reeling mechanism.

[0008] In a specific embodiment of the present invention, the side plate fixing frame includes an upper crossbeam, a lower crossbeam, a left end connecting plate of the crossbeam, and a right end connecting plate of the crossbeam. A displacement frame upper roller track extending from the left end to the right end of the upper crossbeam is formed on the rear side of the upper crossbeam along its length. A similar upper crossbeam groove extending from the left end to the right end and having an open bottom is formed on the lower part of the upper crossbeam along its length. A lower crossbeam groove extending from the left end to the right end of the lower crossbeam is formed on the rear side of the lower crossbeam. A displacement frame limiting roller track separated by a lower crossbeam partition wall is formed at the position corresponding to the front side of the lower crossbeam groove. A displacement frame lower roller track extending from the left end to the right end of the upper crossbeam is formed on the upper front side of the lower crossbeam. Insertion column frames are arranged at intervals along the length of the lower crossbeam, and insertion columns are fixed on these insertion column frames. In use, the insertion post is connected to the side panel of the fire truck's storage compartment or equipment box via the insertion post seat. The upper and lower crossbeams are parallel to each other in the length direction. The upper end of the left end connecting plate of the crossbeam is fixed to the left end face of the upper crossbeam, and the lower end of the left end connecting plate of the crossbeam is fixed to the left end face of the lower crossbeam. The upper end of the right end connecting plate of the crossbeam is fixed to the right end face of the upper crossbeam, and the lower end of the right end connecting plate of the crossbeam is fixed to the right end face of the lower crossbeam. The reciprocating shifting mechanism of the mounting frame forms a sliding pair with the upper crossbeam at the position corresponding to the roller track of the displacement frame, and the reciprocating shifting mechanism of the mounting frame forms a sliding pair with the lower crossbeam at the position corresponding to the limiting roller track and the lower roller track of the displacement frame. The reciprocating shifting frame drive mechanism is disposed between the upper and lower crossbeams and is embedded in the groove of the upper crossbeam and the groove of the lower crossbeam.

[0009] In another specific embodiment of the present invention, the mounting frame reciprocating mechanism includes a displacement frame, a pair of upper guide rollers of the displacement frame, a pair of lower limit rollers of the displacement frame, and a pair of lower guide rollers of the displacement frame. A lower limit roller mounting flange is folded backward at the lower part of the displacement frame, and a displacement frame platform is folded backward at the upper part of the displacement frame. A first mounting frame fixing seat with a U-shaped cross-section is folded upward on the left side of the displacement frame platform, and a second mounting frame fixing seat with a U-shaped cross-section is folded upward on the right side of the displacement frame platform. A pair of upper guide roller mounting seats are folded downward at the rear edge of the displacement frame platform. A displacement frame drive block groove is longitudinally formed in the middle of the width direction of the displacement frame. Each of the pair of upper guide rollers of the displacement frame is rotatably mounted via an upper guide roller shaft. A pair of guide roller mounting seats on the displacement frame form a rolling pair with the roller raceway on the displacement frame. A pair of lower limit rollers on the displacement frame are rotatably mounted horizontally on the side of the lower limit roller mounting edge facing upwards via the lower limit roller shaft, and form a rolling pair with the lower limit roller raceway. A pair of lower guide rollers on the displacement frame are rotatably mounted longitudinally on the lower rear side of the displacement frame at a position corresponding to above the pair of lower limit rollers. The portable take-up mechanism mounting frame is fixed to the first fixed seat and the second fixed seat of the mounting frame. The displacement frame drive mechanism cooperates with the displacement frame at the position corresponding to the displacement frame drive block groove. The portable take-up mechanism, together with the roller-type pressing mechanism, is detached from the upward-facing side of the portable take-up mechanism mounting frame.

[0010] In another specific embodiment of the present invention, the portable strap-holding mechanism mounting frame is composed of a first locking post mating arm, a second locking post mating arm, a first locking hook arm, and a second locking hook arm forming an integral X-shaped relationship. The first locking post mating arm and the first locking hook arm are front-to-back corresponding to each other, while the second locking post mating arm and the second locking hook arm are left-to-right corresponding to each other. The first locking post mating arm is located between the front sides of the second locking post mating arm and the second locking hook arm, while the first locking hook arm is located between the rear sides of the second locking post mating arm and the second locking hook arm. A first locking post detachment connection hole is provided at the front end of the first locking post mating arm. A second detachment connection hole is provided at the left end of the second engagement arm of the locking post. A first hook arm claw is formed by bending the rear end of the first hook arm downwards. A second hook arm claw is formed by bending the rear end of the second hook arm downwards. The hand-held belt taking mechanism, together with the roller-type belt pressing mechanism, is simultaneously detached from the first engagement arm of the locking post and the first hook arm claw at the positions corresponding to the first detachment connection hole of the locking post and the first hook arm claw, or simultaneously detached from the second engagement arm of the locking post and the second hook arm claw at the positions corresponding to the second detachment connection hole of the locking post and the second hook arm claw.

[0011] In another specific embodiment of the present invention, the reciprocating frame drive mechanism includes a frame drive motor, a frame drive reduction gearbox, a driving pulley, a driven pulley, a frame traction belt, a frame drive block, a frame traction belt fixing arm, a frame drive reduction gearbox fixing bracket, and a driven pulley rotation support bracket. The frame drive reduction gearbox fixing bracket has a pair of brackets located between the left ends of the upper and lower crossbeams, corresponding to each other. The upper edges of these brackets are inserted into the grooves of the upper crossbeam and fixed to the upper crossbeam by screws at positions corresponding to the screw holes of the fixing brackets. The lower end of the frame drive reduction gearbox fixing bracket is folded forward to fit into the groove of the lower crossbeam. A folding plate is fitted into the lower crossbeam groove, and is fixed to the lower crossbeam by screws corresponding to the screw holes on the lower crossbeam groove fitting plate. A displacement frame drive motor is positioned behind the displacement frame drive reduction gearbox, and the displacement frame drive reduction gearbox, along with the displacement frame drive motor, is fixed between the ribs of a pair of displacement frame drive reduction gearbox fixing brackets. The final stage power output shaft of the displacement frame drive reduction gearbox faces forward, and the driving pulley is fixed to the final stage power output shaft of the displacement frame drive reduction gearbox, while the driven belt... The driven pulley rotation support bracket is located at the right end between the upper and lower crossbeams, and this driven pulley rotation support bracket is fixed to the front side of the bracket fixing plate. The upper edge of the bracket fixing plate is inserted into the groove of the upper crossbeam and fixed to the upper crossbeam with screws. The lower end of the bracket fixing plate is folded forward to form a bracket fixing plate flange, which is embedded in the groove of the lower crossbeam and fixed to the lower crossbeam with screws. A pair of bracket fixing plate reinforcing arms are formed longitudinally on the front side of the bracket fixing plate. The driven pulley is rotatably supported between the right ends of a pair of driven pulley support arms of the driven pulley rotation support bracket that are corresponding to each other. The left end of the displacement frame traction belt is sleeved on the driving pulley. The upper end is fitted onto the driven pulley, and the right end is fitted onto the driven pulley. The displacement frame drive block corresponds to the groove of the displacement frame drive block. The displacement frame drive block is shaped like a roller and is fixed to the displacement frame traction belt fixing arm by a drive rod. The displacement frame traction belt fixing arm is fixed to the displacement frame traction belt. A left filler plate is provided between the right side of the left end connecting plate of the crossbeam and the left side of the displacement frame drive reduction gearbox fixing bracket, and a right filler plate is provided between the left side of the right end connecting plate of the crossbeam and the right side of the bracket fixing plate. The upper ends of the left and right filler plates are fixed to the upper crossbeam, and the lower ends are fixed to the lower crossbeam. The driving pulley and the driven pulley are synchronous pulleys, and the displacement frame traction belt is a synchronous belt.

[0012] In another specific embodiment of the present invention, the hand-held hose reeling mechanism includes a front cover, a rear cover, a front wall panel, a rear wall panel, a locking post, a buckle, a fire hose traction drive belt, a left drive motor for the fire hose traction drive belt, a right drive motor for the fire hose traction drive belt, and a handle. The front cover and the rear cover are corresponding to each other. A front cover fixing ear is formed at the bottom left and right ends of the front cover facing the rear cover, while a front cover handle fixing flange is formed at the top of the front cover facing the rear cover. A front cover left drive motor shaft support hole and a front cover right drive motor shaft support hole are respectively provided at the left and right ends of the front cover, corresponding to the positions in front of the left and right drive motors of the fire hose traction drive belt. A motor shaft support hole is formed in the middle of the side of the front cover facing the rear cover, and at a position corresponding to the front of the roller-type pressing mechanism. A rear cover fixing ear is formed at the bottom left and bottom right ends of the side of the rear cover facing the front cover, corresponding to the fixing ear of the front cover. A rear cover handle fixing flange is formed at the top of the side of the rear cover facing the front cover, at a position corresponding to the fixing flange of the front cover handle. A left drive motor shaft support hole and a right drive motor shaft support hole are respectively provided at the left and right ends of the rear cover, at positions corresponding to the rear of the left and right drive motors of the fire hose traction transmission belt. A rear pressure ring clearance cavity is formed in the middle of one side and at the position corresponding to the rear of the roller-type pressing mechanism. The front wall panel and the rear wall panel are corresponding to each other. A left connecting foot of the front wall panel is folded horizontally at the lower left end of the side of the front wall panel facing the rear wall panel, and a right connecting foot of the front wall panel is folded horizontally at the lower right end. A left positioning groove for the front wall panel motor shaft with the left side communicating with the outside is opened at the upper left end of the front wall panel, and a right positioning groove for the front wall panel motor shaft with the right side communicating with the outside is opened at the upper right end of the front wall panel. A left connecting foot of the rear wall panel corresponding to the left connecting foot of the front wall panel is folded horizontally at the lower left end of the side of the rear wall panel facing the front wall panel, and a right connecting foot corresponding to the right connecting foot of the front wall panel is folded horizontally at the lower right end. The right connecting foot of the wall panel has a left support hole for the motor shaft of the rear wall panel at the upper left end, corresponding to the left positioning groove of the motor shaft of the front wall panel. Similarly, a right support hole for the motor shaft of the rear wall panel is located at the upper right end, corresponding to the right positioning groove of the motor shaft of the front wall panel. The locking pin is fixed to the bottom of the locking pin seat. A pair of locking pin seat fixing flanges are folded forward on the upper part of the locking pin seat, corresponding to the lower part of the left connecting feet of the front and rear wall panels. A locking connecting seat is provided at the lower part between the right connecting feet of the front and rear wall panels. A pair of locking connecting seat fixing plates are folded forward on the upper part of the locking connecting seat, corresponding to the lower part of the right connecting feet of the front and rear wall panels.The front cover fixing lug at the bottom left end of the front cover is inserted between the left connecting foot of the front wall panel and the front one of the pair of locking bracket fixing flanges, and the three are fixed together by fixing screws. The front cover fixing lug at the bottom right end of the front cover is inserted between the right connecting foot of the front wall panel and the front one of the pair of locking connecting bracket fixing plates, and the three are fixed together by fixing screws. The rear cover fixing lug at the bottom left end of the rear cover is inserted between the left connecting foot of the rear wall panel and the rear one of the pair of locking bracket fixing flanges. The column base is fixed between the folded edges and secured by a pair of first fixing screws. The rear cover fixing ear at the bottom right end of the rear cover is inserted between the right connecting foot of the rear wall panel and one of the two locking connecting seat fixing plates located at the rear, and secured by a pair of second fixing screws. The locking post changes position with the locking post base and engages with the first or second detachment connecting hole of the locking post. The locking buckle is located on the right side of the locking buckle connecting seat and also engages with the right side of the second hook arm claw of the second hook arm of the locking buckle. The fire hose traction drive belt is located between the front and rear wall panels, with its left end fitted onto the left drive pulley and its right end fitted onto the right drive pulley. A traction drive belt bracket is installed within the fire hose traction drive belt cavity. The lower part of this bracket extends out of the cavity along its length on its front and rear sides and is fixed to the front and rear wall panels, respectively. The left drive motor of the fire hose traction drive belt is located at the left end between the front and rear wall panels. A driving wheel is mounted on the left drive motor of the fire hose traction transmission belt, and a right drive motor of the fire hose traction transmission belt is located at the right end between the front and rear wall panels. The right drive wheel of the traction transmission belt is mounted on the right drive motor of the fire hose traction transmission belt. A handle fixing plate is fixed to both the left and right ends of the handle. The front end of the handle fixing plate is fixed to the front cover handle fixing flange, and the rear end is fixed to the rear cover handle fixing flange. The roller-type belt pressing mechanism is rotatably supported between the front and rear covers at a position corresponding to the position between the front and rear pressure ring clearance cavities.

[0013] In a further specific embodiment of the present invention, a support roller is rotatably arranged between opposing sides at the midpoint of the front wall panel and the rear wall panel along their length. This support roller contacts the bottom outer side of the fire hose traction drive belt. The front end of the support roller shaft is supported on the front wall panel support flange of the front wall panel via a front adjustment bearing. This front wall panel support flange is formed by folding the bottom of the front wall panel towards one side of the rear wall panel. The rear end of the support roller shaft is supported on the rear wall panel support flange of the rear wall panel via a rear adjustment bearing. This rear wall panel support flange is formed by folding the bottom of the rear wall panel towards one side of the front wall panel and corresponds to the front wall panel support flange. The traction drive belt bracket... The device includes a belt support cover and a belt support cover fixing seat located within the traction drive belt cavity of a fire hose. A left fixing connecting arm for the belt support cover is folded upwards at the left end of the fixing seat, and a right fixing connecting arm for the belt support cover is folded upwards at the right end. A front wall panel connecting flange for the belt support cover is folded downwards at the front side along the length of the fixing seat, and a rear wall panel connecting flange for the belt support cover is folded downwards at the rear side along the length of the fixing seat. The left end of the belt support cover is fixedly connected to the left fixing connecting arm by fasteners, and the right end is similarly fixedly connected to the right fixing connecting arm by fasteners. The top surface of the belt support cover contacts the upper inner surface of the fire hose traction drive belt. The front wall panel of the cover fixing seat protrudes from the front side of the fire hose traction transmission belt cavity and is fixed to the front wall panel with screws. The rear wall panel of the cover fixing seat protrudes from the rear side of the fire hose traction transmission belt cavity and is fixed to the rear wall panel with screws. The latch includes a latch plate, a front connecting rod, a rear connecting rod, a front hinge arm, a rear hinge arm, a connecting rod connecting shaft, a locking rod, a front tension spring, a rear tension spring, and a locking rod hook plate. The latch plate is fixed to the right side of the latch connecting seat by latch plate fixing screws. The front and rear connecting rods are located on the front and rear sides of the latch plate, respectively, and their upper ends are hinged to the latch plate by the connecting rod connecting shaft. The upper end of the front hinge arm is in contact with the front side of the front connecting rod, and the upper end of the rear hinge arm is in contact with the rear side of the rear connecting rod. The lower ends of the front and rear articulated arms extend downwards to correspond to the locking bar hook plate. The locking bar is connected between the lower ends of the front and rear articulated arms. A front tension spring is sleeved on the front connecting rod and the front articulated arm. The upper end of the front tension spring is supported on the shoulder of the front articulated arm at the upper end of the front articulated arm, and the lower end is supported on the lower part of the front articulated arm. A rear tension spring is sleeved on the rear connecting rod and the rear articulated arm. The upper end of the rear tension spring is supported on the shoulder of the rear articulated arm at the upper end of the rear articulated arm, and the lower end is supported on the lower part of the rear articulated arm. The locking bar hook plate is fixed to the right side of the second hook arm claw of the second hook arm of the lock by locking bar hook plate screws. A locking hook is formed on the right side of the locking bar hook plate, and the locking hook is hooked on the middle of the locking bar.A locking rod hook plate is also fixed to the rear side of the first hook arm claw of the locking first hook arm, and a locking hook is also formed on the rear side of the locking rod hook plate.

[0014] In a further specific embodiment of the present invention, the cooperation method between the right drive pulley of the traction drive belt and the right drive motor of the fire hose traction drive belt is the same as the cooperation method between the left drive pulley of the traction drive belt and the left drive motor of the fire hose traction drive belt. Furthermore, the structure of the right drive motor of the fire hose traction drive belt is the same as the structure of the left drive motor of the fire hose traction drive belt. A left drive pulley cavity is formed between the inner wall of the left drive pulley and the outer wall of the left drive motor of the fire hose traction drive belt. On the cavity wall of the left drive pulley cavity, left drive pulley embedding protrusions extending from the front end to the rear end of the cavity wall are formed at intervals around the circumference of the left drive pulley cavity, with each pair of adjacent protrusions... The recessed area between the protruding strips of the left drive wheel forms a mortise-fitting boss and recessed cavity. Left drive wheel cover plate fixing screw holes are provided on the front and rear faces of the left drive wheel of the traction drive belt, corresponding to the end faces of the protruding strips of the left drive wheel. The front and rear faces of the left drive motor of the fire hose traction drive belt are recessed into the front and rear faces of the left drive wheel of the traction drive belt, respectively, forming a mortise compensation cavity. Stacked mortises are embedded in these mortise compensation cavities. On the outer wall of each mortise, and around its circumference, mortise-fitting bosses and left drive wheel protruding strip fitting cavities are formed at intervals. The mortise-fitting bosses and the mortise-fitting boss fitting cavities compensate and fit each other. The grooved cavity mates with the embedded protrusion of the left drive wheel. A drive wheel cover plate with a diameter larger than the outer diameter of the left drive wheel is provided at the front and rear end faces corresponding to the left drive wheel of the traction drive belt. A drive motor shaft clearance hole is provided in the center of the drive wheel cover plate. The total thickness of the gasket is consistent with the width of the gasket compensation cavity, and the side of the gasket facing the left drive motor of the fire hose traction drive belt is in close contact with the motor rotor of the left drive motor. A left drive wheel fixing screw hole is provided on the drive wheel cover plate at the position corresponding to the fixing screw hole of the left drive wheel cover plate. A left drive wheel fixing screw hole is provided at the position corresponding to the fixing screw hole of the left drive wheel cover plate. The left drive wheel fixing screw is screwed into the left drive wheel cover plate fixing screw hole to fix the drive wheel cover plate to the left drive wheel of the traction drive belt. The front end of the drive motor support shaft of the left drive motor of the fire hose traction drive belt passes sequentially through the gasket center hole, the drive motor shaft clearance hole, the left positioning groove of the front wall panel motor shaft, and the left drive motor shaft support hole of the front cover, and is limited by the front end limiting nut of the drive motor support shaft. The rear end of the drive motor support shaft passes sequentially through the gasket center hole, the drive motor shaft clearance hole, the left support hole of the rear wall panel motor shaft, and the left drive motor shaft support hole of the rear cover, and is limited by the rear end limiting nut of the drive motor support shaft.On the transmission wheel cover plate, at intervals around the clearance hole of the drive motor shaft, at the position corresponding to the end face of the left drive motor of the fire hose traction transmission belt, cover plate screw holes are provided. Motor rotor fixing screws are fitted into these cover plate screw holes. On the washer, at the position corresponding to the cover plate screw holes, washer screw holes are provided. On the end face of the left drive motor of the fire hose traction transmission belt facing the transmission wheel cover plate, at the position corresponding to the cover plate screw holes, motor rotor cover plate fixing screw holes are provided. The motor rotor fixing screws are screwed into the motor rotor cover plate fixing screw holes through the washer screw holes to fix the transmission wheel cover plate, the washer, and the motor rotor of the left drive motor of the fire hose traction transmission belt to each other. The left and right transmission wheels of the traction transmission belt are synchronous belt pulleys, and the fire hose traction transmission belt is a synchronous belt.

[0015] In yet another specific embodiment of the present invention, a connecting disc fixing shaft front axle head through hole is provided at the center of the front pressure ring relief cavity, and a connecting disc fixing shaft rear axle head through hole is provided at the center of the rear pressure ring relief cavity. The roller-type pressing mechanism includes a front elastic rope connecting disc, a rear elastic rope connecting disc, a front elastic rope head pressure ring, a rear elastic rope head pressure ring, a connecting disc fixing shaft, and a set of fire hose connector clearance elastic ropes. The front elastic rope connecting disc and the rear elastic rope connecting disc are corresponding to each other front and back, and a connecting disc fixing shaft hole is provided at the center of each of them. The front and rear elastic rope connecting discs are fixed to the middle of the connecting disc fixing shaft by the connecting disc fixing shaft hole. At the edge of the front elastic rope connecting disc and around the front elastic rope connecting disc. The set of fire hose reels has a number of elastic rope end through holes spaced at intervals, equal to the number of elastic ropes in a set of fire hose reels, and corresponding in position. A front rope end guide sleeve is embedded in each of these end through holes. Similarly, a number of elastic rope rear end through holes, also equal to the number of elastic ropes in a set of fire hose reels, are spaced at intervals around the edge of the rear connecting reel and around its circumference. A rear rope end guide sleeve is embedded in each of these rear end through holes. The middle of each set of fire hose reels is located between the front and rear connecting reels and contacts the upper surface of the fire hose traction drive belt. The front rope end of this set of fire hose reels extends through the front rope end guide sleeve. The elastic rope extends to the front of the front connecting disc and is in a bent state. A set of fire hose connectors allows the rear end of the elastic rope to pass through the rear rope end guide sleeve, extending to the rear of the elastic rope rear connecting disc and in a bent state. The elastic rope front end pressure ring is located on the front of the elastic rope front connecting disc at a position corresponding to the front pressure ring clearance cavity. A set of spaced elastic rope front end pressure ring fixing screws are used to fix the elastic rope front end pressure ring to the front of the elastic rope front connecting disc at positions corresponding to the elastic rope front end pressure ring screw holes opened on the elastic rope front end pressure ring. At the same time, the front rope end is clamped between the elastic rope front end pressure ring and the opposite side of the elastic rope front connecting disc. The elastic rope rear end pressure ring is located on the elastic rope rear connecting disc at a position corresponding to the rear pressure ring clearance cavity. The rear side of the elastic cord rear head retaining ring is fixed to the rear side of the elastic cord rear connecting disc by a set of spaced elastic cord rear head retaining ring fixing screws at positions corresponding to the elastic cord rear head retaining ring screw holes opened on the elastic cord rear head retaining ring. At the same time, the rear cord head is clamped between the elastic cord rear head retaining ring and the opposite side of the elastic cord rear connecting disc. The front end of the connecting disc fixing shaft extends to the front side of the front cover through the front axle head through hole of the connecting disc fixing shaft and is rotatably supported on the front bearing seat, which is fixed to the front side of the front cover. The rear end of the connecting disc fixing shaft extends to the rear side of the rear cover through the rear axle head through hole of the connecting disc fixing shaft and is rotatably supported on the rear bearing seat, which is fixed to the rear side of the rear cover.

[0016] In yet another specific embodiment of the present invention, the set of fire hose joints with elastic ropes is made of rubber strips, rubber band braided ropes, elastic bands, silicone strips, NBR strips, EPDM strips, butyl strips, or spring strips.

[0017] The technical advantages of the present invention are as follows: Because the side plate fixing frame is designed to be detachably connected to the side plate of the fire truck's saddlebag compartment or equipment box in use, and because the portable saddlebag retraction mechanism is detachably mounted on the portable saddlebag retraction mechanism mounting frame, when the fire truck travels in special and complex environments such as forests, mountains, or height-restricted areas, the side plate fixing frame can be detached from the side plate of the saddlebag compartment or equipment box and / or the portable saddlebag retraction mechanism can be detached from the portable saddlebag retraction mechanism mounting frame, avoiding obstructions from tree branches and height-restricted facilities. This solution can meet the requirements of both conventional and complex environments, demonstrating its effectiveness. Excellent environmental adaptability; due to the reciprocating shift mechanism driving the mounting frame reciprocating shift mechanism together with the hand-held hose reeling mechanism and the hand-held hose reeling mechanism, and with the cooperation of the roller-type hose pressing mechanism, automatic hose reeling and straightening is achieved. Therefore, it is beneficial to stably and reliably retract the fire hose and fold it into the fire truck's hose storage compartment or equipment box while saving manpower, time, and effort, demonstrating an ideal automation effect; since the roller-type hose pressing mechanism can allow the fire hose joints to pass through unobstructedly, it will not be interfered with by the hose joints during the hose reeling process, thus ensuring the smooth automatic hose reeling and straightening of the fire hose. Attached Figure Description

[0018] Figure 1 is a schematic diagram of an embodiment of the invention;

[0019] Figure 2 is a detailed structural diagram of the reciprocating mechanism of the mounting bracket shown in Figure 1;

[0020] Figure 3 is an enlarged view of part A in Figure 1;

[0021] Figure 4 is a detailed structural diagram of the hand-held tape take-up mechanism and the roller-type tape pressing mechanism shown in Figure 1.

[0022] Figure 5 is a detailed structural diagram of the latch shown in Figures 1 and 2;

[0023] Figure 5a is a schematic diagram of the locking hook in the state of being engaged with the locking bar as shown in Figure 5;

[0024] Figure 6 is a detailed structural diagram of the traction drive belt bracket of the hand-held belt winding mechanism shown in Figure 4;

[0025] Figure 7 is a structural diagram showing the cooperation between the left drive wheel of the traction drive belt and the left drive motor of the fire hose traction drive belt in the structural system of the hand-held hose winding mechanism shown in Figure 4.

[0026] Figure 8 is a detailed structural diagram of the displacement frame drive motor, displacement frame drive reduction gearbox and active belt pulley transmission of the reciprocating displacement frame drive mechanism shown in Figure 1.

[0027] Figure 9 is a schematic diagram of an application example of the present invention. Detailed Implementation

[0028] To better understand the technical essence and beneficial effects of the present invention, detailed descriptions will be provided below using embodiments. However, these descriptions are not intended to limit the scope of the present invention. Any formal, rather than substantive, equivalent modifications made based on the inventive concept should be considered within the scope of the present invention. In the following description, all directional or orientational concepts involving up, down, left, right, front, and back, unless otherwise stated, are based on the current position shown in Figure 1 and should not be construed as a specific limitation on the technical solution provided by the present invention.

[0029] Please refer to Figure 1, which shows a side panel fixing frame 1. In use, this side panel fixing frame 1 is detachably connected to the upper edge of the hose storage compartment side panel 81 of the hose storage compartment 8 of the fire truck shown in Figure 9. If an equipment box is used, it is connected to the equipment box side panel. A portable hose reel mounting frame 2 and a mounting frame reciprocating mechanism 3 are shown. The portable hose reel mounting frame 2 is fixed to the upper part of the mounting frame reciprocating mechanism 3, while the mounting frame reciprocating mechanism 3 is slidably mounted on the aforementioned side panel fixing frame 1 and forms a sliding pair with the side panel fixing frame 1. A reciprocating frame drive mechanism 4 is shown, which is mounted on the aforementioned side panel fixing frame 1 and cooperates with the aforementioned mounting frame reciprocating mechanism 3. A portable hose reel 5 is shown, which is detachably mounted on the aforementioned portable hose reel mounting frame 2. A roller-type hose pressing mechanism 6 is shown, which is mounted on the aforementioned portable hose reel 5.

[0030] The concept of "hose retraction" mentioned above refers to retrieving the fire hose previously placed in the hose storage compartment 8 or equipment box back into the compartment. Simultaneously, because the reciprocating frame drive mechanism 4 has the function of driving the reciprocating motion of the portable hose retraction mechanism mounting frame 2 along with the portable hose retraction mechanism 5, the fire hose can be retracted while simultaneously folding back and forth, i.e., the fire hose is laid out in an S-shape within the hose storage compartment 8 or equipment box during the retraction process. The aforementioned concept of detachment refers to the ability, as needed, to separate the side plate fixing frame 1 from the side plate 81 of the hose storage compartment and / or to separate the portable hose retraction mechanism 5 from the portable hose retraction mechanism mounting frame 2. For example, when driving on relatively dense mountain roads, there may be obstruction or interference from objects such as tree branches. In situations not limited to those listed, the side plate fixing frame 1 along with the portable hose retraction mechanism 5 can be removed to ensure smooth vehicle movement and prevent damage to the device.

[0031] Referring to Figure 1, the aforementioned side plate fixing frame 1 includes an upper crossbeam 11, a lower crossbeam 12, a left end connecting plate 13, and a right end connecting plate 14. A displacement frame roller track 111 extending from the left end to the right end of the upper crossbeam 11 is formed on the rear side of the upper crossbeam 11 along its length. A similar upper crossbeam groove 112, extending from the left end to the right end of the upper crossbeam 11 and with an open bottom, is formed at the lower part of the upper crossbeam 11 along its length. A groove 112 extending from the left end to the right end of the upper crossbeam 11 and with an open bottom is formed on the rear side of the lower crossbeam 12. A lower crossbeam groove 121 extends from the left end to the right end of the lower crossbeam 12. A displacement frame limiting roller track 122, separated by a lower crossbeam partition wall, is formed on the front side of the lower crossbeam groove 121. A displacement frame lower roller track 123, extending from the left end to the right end of the upper crossbeam 12, is formed on the upper front side of the lower crossbeam 12. Insertion pin brackets 124 are provided at intervals along the length of the lower crossbeam 12, and insertion pins 1241 are fixed to these brackets 124. In use, these insertion pins... The insertion post 1241 is connected to the side panel of the belt storage compartment or equipment box of the aforementioned fire truck via the insertion post seat 12411. The upper and lower crossbeams 11 and 12 are parallel to each other in the longitudinal direction. The upper end of the left end connecting plate 13 of the crossbeam is fixed to the left end face of the upper crossbeam 11, while the lower end of the left end connecting plate 13 of the crossbeam is fixed to the left end face of the lower crossbeam 12. The upper end of the right end connecting plate 14 of the crossbeam is fixed to the right end face of the upper crossbeam 11, while the lower end of the right end connecting plate 14 of the crossbeam is fixed to the right end face of the lower crossbeam 12. The mounting frame reciprocating mechanism 3 forms a sliding pair with the upper crossbeam 11 at the position corresponding to the upper roller track 111 of the displacement frame, and the mounting frame reciprocating mechanism 3 forms a sliding pair with the lower crossbeam 12 at the position corresponding to the displacement frame limiting roller track 122 and the displacement frame lower roller track 123; the reciprocating frame drive mechanism 4 is disposed between the upper and lower crossbeams 11 and 12 and is fixed with the upper crossbeam groove 112 and the lower crossbeam groove 121.

[0032] Referring to Figure 9, the aforementioned insert seat 12411 (also called "pin seat") is fixed to the upper part of the inner side of the aforementioned belt storage box side plate 81, i.e., the side facing the belt storage compartment 8, by bolts in the use state. This allows the entire side plate fixing frame 1 to be fitted onto the fire truck in the state shown in Figure 9, more specifically, onto the belt storage compartment side plate 81 of the hose storage compartment 8 of the fire truck. Furthermore, the side plate fixing frame 1 and all the aforementioned mechanisms of the present invention, which are mounted on the side plate fixing frame 1, can be detached from the insert seat 12411 as needed. This allows the fire truck to better adapt to the complex environments mentioned above, where the side plate fixing frame 1 is only immediately inserted into the insert seat 12411 via the aforementioned insert 1241 after arriving at the disaster relief site, such as a forest fire site. Therefore, the design mode provided by the present invention is extremely efficient, embodying a modular, detachable assembly structure. In addition, in the non-use state, the present invention and the belt storage compartment side plate 8 can be stored separately.

[0033] Please refer to Figures 2 and 3 and in conjunction with Figure 1. The aforementioned mounting frame reciprocating mechanism 3 includes a displacement frame 31, a pair of upper guide rollers 32, a pair of lower limit rollers 33, and a pair of lower guide rollers 34. A lower limit roller mounting flange 311 is folded backward at the lower part of the displacement frame 31, and a displacement frame platform 312 is folded backward at the upper part of the displacement frame 31. A first mounting frame fixing seat 312 with a U-shaped cross-section is folded upward on the left side of the displacement frame platform 312. 1. On the right side of the displacement frame platform 312, a second mounting bracket 3122, with a cross-sectional shape corresponding to the first mounting bracket 3121, is folded upwards. A pair of upper guide roller mounting brackets 3123 are folded downwards at the rear edge of the displacement frame platform 312. A displacement frame drive block groove 313 is longitudinally formed in the middle of the width direction of the displacement frame 31. Each of the pair of upper guide rollers 32 rotates via an upper guide roller shaft 321. A pair of lower limit rollers 33 are mounted on the front side of the guide roller mounting base 3123 of the displacement frame and form a rolling pair with the aforementioned upper roller raceway 111 of the displacement frame. A pair of lower limit rollers 33 are each rotatably mounted horizontally on the upward-facing side of the aforementioned lower limit roller mounting flange 311 via a lower limit roller shaft 331 of the displacement frame, and form a rolling pair with the aforementioned lower limit roller raceway 122 of the displacement frame. A pair of lower guide rollers 34 are each mounted longitudinally via a lower guide roller shaft 341 of the displacement frame. The displacement frame 31 is rotatably mounted on its lower rear side above a pair of lower limit rollers 33. The aforementioned hand-held reeling mechanism mounting bracket 2 is fixed to the aforementioned first fixed seat 3121 and second fixed seat 3122 of the mounting bracket. The aforementioned displacement frame drive mechanism 4 is engaged with the aforementioned displacement frame 31 at the position corresponding to the aforementioned displacement frame drive block groove 313. The aforementioned hand-held reeling mechanism 5, together with the roller-type pressing mechanism 6, is detached from the upward-facing side of the aforementioned hand-held reeling mechanism mounting bracket 2. As a preferred embodiment, in order to ensure the strength of the aforementioned displacement frame platform 312 and displacement frame 31 at the arc transition section, that is, to ensure the strength of the displacement frame platform 312, this application provides a displacement frame platform reinforcing support plate 3124 in the shape of an inverted L-shape, which is fixed to the left and right sides of the upper bent portion of the displacement frame platform 312 and displacement frame 31 by fasteners such as bolts.

[0034] Please refer to Figure 1, and in conjunction with Figures 5 and 5a, the aforementioned portable strap-holding mechanism mounting frame 2 consists of a first locking arm 21, a second locking arm 22, a first hook arm 23, and a second hook arm 24 forming an overall X-shape (also known as a "cross shape"). The first locking arm 21 and the first hook arm 23 correspond to each other front and back, while the second locking arm 22 and the second hook arm 24 correspond to each other left and right. The first locking arm 21 is located between the front sides of the second locking arm 22 and the second hook arm 24, while the first hook arm 23 is located between the rear sides of the second locking arm 22 and the second hook arm 24. A first detachment connection hole for the locking arm 21 is provided at the front end of the first locking arm 21. 211. A second detachment connection hole 221 is provided at the left end of the second engaging arm 22 of the locking post. A first hook arm claw 231 is formed by bending downward at the rear end of the first hook arm 23 of the locking buckle. A second hook arm claw 241 is formed by bending downward at the rear end of the second hook arm 24 of the locking buckle. The aforementioned hand-held belt-retracting mechanism 5, together with the aforementioned roller-type belt-pressing mechanism 6, is simultaneously detached from the first engaging arm 21 of the locking post and the first hook arm claw 231 at the positions corresponding to the aforementioned first detachment connection hole 211 and the first hook arm claw 231, or simultaneously detached from the second engaging arm 22 of the locking post and the second hook arm claw 241 at the positions corresponding to the aforementioned second detachment connection hole 221 and the second hook arm claw 241. As shown in Figure 1 and referring to Figures 3, 5 and 5a, the shapes of the aforementioned first and second detachment connection holes 211 and 221 of the locking post are similar to the gourd-shaped holes of a gourd.

[0035] Please refer to Figures 1 and 8. The aforementioned reciprocating shifting frame drive mechanism 4 includes a shifting frame drive motor 41, a shifting frame drive reduction gearbox 42, a driving pulley 43, a driven pulley 44, a shifting frame traction belt 45, a shifting frame drive block 46, a shifting frame traction belt fixing arm 47, a shifting frame drive reduction gearbox fixing bracket 48, and a driven pulley rotation support bracket 49. The shifting frame drive reduction gearbox fixing bracket 48 has a pair of left and right corresponding brackets located between the left ends of the aforementioned upper and lower crossbeams 11 and 12. The upper edge 481 of the pair of shifting frame drive reduction gearbox fixing brackets 48 is inserted into the aforementioned upper crossbeam groove 112 and fixed to the aforementioned upper crossbeam 11 by screws at positions corresponding to the fixing bracket screw holes 482. The lower end of the displacement frame drive reduction gearbox fixing bracket 48 is folded forward to form a lower crossbeam groove fitting plate 483. This lower crossbeam groove fitting plate 483 is embedded in the aforementioned lower crossbeam groove 121 and is fixed to the aforementioned lower crossbeam 12 by lower crossbeam groove fitting plate fixing screws at positions corresponding to the lower crossbeam fitting plate screw holes 4831 on the lower crossbeam groove fitting plate 483. The displacement frame drive motor 41 is located at a position corresponding to the rear side of the displacement frame drive reduction gearbox 42 and is in transmission engagement with the displacement frame drive reduction gearbox 42. The displacement frame drive reduction gearbox 42, together with the displacement frame drive motor 41, is fixed between the displacement frame drive reduction gearbox fixing bracket ribs 484 of the pair of displacement frame drive reduction gearbox fixing brackets 48. Furthermore, the final stage power output shaft 421 of the displacement frame drive reduction gearbox 42 faces forward, and the driving pulley 43 is fixed on the final stage power output shaft 421 of the displacement frame drive reduction gearbox. The driven pulley rotation support bracket 49 is located at the right end between the aforementioned upper and lower crossbeams 11 and 12, and the driven pulley rotation support bracket 49 is fixed to the front side of the bracket fixing plate 491. The upper edge of the bracket fixing plate 491 is inserted into the aforementioned upper crossbeam groove 112 and fixed to the upper crossbeam 11 by screws. The lower end of the bracket fixing plate 491 is folded forward to form a bracket fixing plate folded edge 4911, which is embedded in the aforementioned lower crossbeam groove 121 and fixed to the lower crossbeam 12 by screws. A pair of bracket fixing plate reinforcing arms 492 are longitudinally arranged on the front side of the bracket fixing plate 491. The driven pulley 44 is rotatably supported between the right ends of a pair of driven pulley support arms 493 that are corresponding to each other in the driven pulley rotation support bracket 49 via the driven pulley shaft 441. The left end of the displacement frame traction belt 45 is sleeved on the driving pulley 43, and the right end is sleeved on the driven pulley 44. The displacement frame drive block 46 corresponds to the aforementioned displacement frame drive block groove 313. The displacement frame drive block 46 is roller-shaped and is fixed to the displacement frame traction belt fixing arm 47 via the drive rod 461. The displacement frame traction belt fixing arm 47 is fixed to the aforementioned displacement frame traction belt 45.A left filler plate 15a is provided between the right side of the aforementioned left end connecting plate 13 of the crossbeam and the left side of the aforementioned displacement frame drive reduction gearbox fixing bracket 48, while a right filler plate 15b is provided between the left side of the aforementioned right end connecting plate 14 of the crossbeam and the right side of the aforementioned bracket fixing plate 491. The upper ends of the left and right filler plates 15a and 15b are fixed to the upper crossbeam 11, and the lower ends are fixed to the lower crossbeam 12. The aforementioned driving pulley 43 and driven pulley 44 are synchronous pulleys, and the aforementioned displacement frame traction belt 45 is a synchronous belt. As a preferred embodiment, a displacement block traction belt support foot 113 corresponding to the displacement frame traction belt 45 can be provided on the upper crossbeam 11, and the displacement block traction belt support foot 113 supports the displacement frame traction belt 45.

[0036] When the displacement frame drive motor 41 is working, it drives the displacement frame drive reduction gearbox 42. The final stage power output shaft 421 of the displacement frame drive reduction gearbox 42 drives the drive pulley 43, which in turn drives the displacement frame traction belt 45. Since the right end of the displacement frame traction belt 45 is sleeved on the driven pulley 44, and since the aforementioned displacement frame drive block 46 (also called "displacement frame drive roller") corresponds to the aforementioned displacement frame drive block slot 313 (i.e., it cooperates with the displacement frame drive block slot 313), and since the displacement frame drive block 46 is connected to the displacement frame traction belt fixing arm 47 via the drive rod 461, the displacement frame traction belt... The belt 45 is fixedly connected, so during the movement of the aforementioned displacement frame traction belt 45, when the displacement frame drive block 46 moves upward along the displacement frame drive block groove 313 to the top of the groove, the displacement frame drive block 46 drives the displacement frame 31 to move to the right. Conversely, when the displacement frame drive block 46 moves downward along the displacement frame drive block groove 313 to the bottom of the groove, the displacement frame drive block 46 drives the displacement frame 31 to move to the left. This alternating left and right movement causes the aforementioned hand-held belt retraction mechanism mounting frame 2, which is mounted on the displacement frame 31, and the hand-held belt retraction mechanism 5, which is detachably connected to the hand-held belt retraction mechanism mounting frame 2, along with the roller-type belt pressing mechanism 6, to move back and forth accordingly. This movement mode allows the hand-held belt retraction mechanism 5 to simultaneously retract the fire hose in multiple S-shaped states and lay it orderly in the belt storage box 8. During the displacement of the aforementioned displacement frame 31, the aforementioned pair of upper guide rollers 32 move along the upper roller track 111 of the displacement frame, while the aforementioned pair of lower limit rollers 33 and pair of lower guide rollers 34 move along the lower limit roller track 122 and the lower roller track 123 of the displacement frame, respectively.

[0037] Please refer to Figures 4 to 6 and in conjunction with Figure 1. The aforementioned hand-held hose reeling mechanism 5 includes a front cover 51, a rear cover 52, a front wall panel 53, a rear wall panel 54, a locking post 55, a buckle 56, a fire hose traction drive belt 57, a left drive motor 58 for the fire hose traction drive belt, a right drive motor 50 for the fire hose traction drive belt, and a handle 59. The front cover 51 and the rear cover 52 are corresponding to each other. A front cover fixing lug 511 is formed at the bottom left and right ends of the front cover 51 facing the rear cover 52. A front cover handle fixing flange 512 is formed at the top of the front cover 51 facing the rear cover 52. At the left and right ends of the front cover 51, corresponding to the left drive motor 58 of the fire hose traction drive belt and the fire hose traction drive belt... A front cover left drive motor shaft support hole 513 and a front cover right drive motor shaft support hole 514 are respectively opened in front of the right drive motor 50 of the drive belt. A front pressure ring clearance cavity 515 is formed in the middle of the side of the front cover 51 facing the rear cover 52 and in front of the aforementioned roller-type pressing mechanism 6. A rear cover fixing ear 521 is formed at the bottom left and bottom right ends of the side of the rear cover 52 facing the front cover 51, corresponding to the aforementioned front cover fixing ear 511. A rear cover handle fixing flange 522 is formed at the top of the side of the rear cover 52 facing the front cover 51 and in a position corresponding to the aforementioned front cover handle fixing flange 512. At the left and right ends of the rear cover 52 and in a position corresponding to the aforementioned front cover handle fixing flange 512, a rear cover handle fixing flange 522 is formed. A left drive motor shaft support hole 523 and a right drive motor shaft support hole 524 are respectively provided behind the left drive motor 58 and the right drive motor 50 of the fire hose traction transmission belt. A rear pressure ring clearance cavity 525 is formed in the middle of the side of the rear cover 52 facing the front cover 51 and corresponding to the rear of the aforementioned roller-type belt pressing mechanism 6. The front wall panel 53 and the rear wall panel 54 are corresponding to each other. A left connecting foot 531 is folded horizontally at the lower left end of the side of the front wall panel 53 facing the rear wall panel 54, and a right connecting foot 532 is folded horizontally at the lower right end. A front wall panel motor is provided at the upper left end of the front wall panel 53, which communicates with the outside on the left side. The front wall panel 53 has a left positioning groove 533 for the motor shaft, and a right positioning groove 534 for the motor shaft with its right side communicating with the outside. On the lower left side of the rear wall panel 54 facing the front wall panel 53, a left connecting foot 541 corresponding to the aforementioned left connecting foot 531 is horizontally folded out. On the lower right side, a right connecting foot 542 corresponding to the right connecting foot 532 is horizontally folded out. A left support hole 543 for the motor shaft is located on the upper left side of the rear wall panel 54, corresponding to the left positioning groove 533 for the motor shaft. A right support hole 544 for the motor shaft is located on the upper right side of the rear wall panel 54, corresponding to the right positioning groove 534 for the motor shaft.The aforementioned locking pin 55 is fixed to the bottom of the locking pin base 551. A pair of locking pin base fixing flanges 5511 are folded outwards on the upper part of the locking pin base 551, corresponding to the lower parts of the aforementioned front and rear wall panel left connecting feet 531 and 541, respectively. A locking connecting seat 7 is provided at the lower part between the aforementioned front and rear wall panel right connecting feet 532 and 542. A pair of locking connecting seat fixing plates 71 are folded outwards on the upper part of the locking connecting seat 7, corresponding to the lower parts of the aforementioned front and rear wall panel right connecting feet 532 and 542, respectively. The front cover fixing ear 511 at the bottom left end of the aforementioned front cover 51 is inserted into the front wall panel left connecting foot 531 and the aforementioned pair of locking pin base fixing flanges 5511. The front cover 51 has a front cover fixing lug 511 at the bottom right end, which is inserted between the front wall panel right connecting foot 532 and the front locking connecting seat fixing plate of the aforementioned pair of locking connecting seat fixing plates 71, and the three are fixed together by fixing screws. The rear cover 52 has a rear cover fixing lug 521 at the bottom left end, which is inserted between the rear wall panel left connecting foot 541 and the rear locking bracket fixing edge of the aforementioned pair of locking bracket fixing edges 5511, and the three are fixed together by a pair of first fixing connecting screws 5411. The rear cover 52 has a rear cover fixing lug 521 at the bottom right end, which is inserted between the rear wall panel right connecting foot 542 and the aforementioned pair of locking connecting plates 71, and the three are fixed together by fixing screws. The locking plate 71 is located at the rear of the locking plate and is fixed together by a pair of second fixing screws 5421. The aforementioned locking post 55 changes position with the aforementioned locking post seat 551 and engages with the aforementioned locking post first detachment connection hole 211 or the aforementioned locking post second detachment connection hole 221 (to be explained below). The aforementioned locking buckle 56 is located on the right side of the aforementioned locking buckle connecting seat 7 and is also connected to the right side of the second hook arm claw 241 of the aforementioned locking buckle second hook arm 24 (shown in Figure 1). The fire hose traction drive belt 57 is located between the aforementioned front and rear wall panels 53 and 54. The left end of the fire hose traction drive belt 57 is sleeved on the left drive wheel 571 of the traction drive belt, and the right end is sleeved on the right drive wheel 571 of the traction drive belt. On 76, a traction drive belt bracket 574 is provided inside the fire hose traction drive belt cavity 573 of the fire hose traction drive belt 57. The front and rear sides of the lower part of the traction drive belt bracket 574 protrude from the fire hose traction drive belt cavity 573 and are respectively fixed to the aforementioned front wall panel 53 and rear wall panel 54. The left drive motor 58 of the fire hose traction drive belt is located at the left end between the front and rear wall panels 53 and 54, and the aforementioned left drive wheel 571 of the traction drive belt is sleeved on the left drive motor 58. The right drive motor 50 of the fire hose traction drive belt is located at the right end between the front and rear wall panels 53 and 54, and the aforementioned right drive wheel 576 of the traction drive belt is sleeved on the right drive motor 50.A handle fixing plate 591 is fixed to both the left and right ends of the aforementioned handle 59. The front end of the handle fixing plate 591 is fixed to the aforementioned front cover handle fixing flange 512, and the rear end is fixed to the aforementioned rear cover handle fixing flange 522. The aforementioned roller-type pressing mechanism 6 is rotatably supported between the front and rear covers 51 and 52 at a position corresponding to the aforementioned front pressure ring clearance cavity 515 and rear pressure ring clearance cavity 525.

[0038] Please refer to Figure 6 and Figure 4 for details. A support roller 575 (shown in Figure 4) is rotatably disposed between opposite sides of the midpoint of the aforementioned front wall panel 53 and rear wall panel 54 along their length. This support roller 575 contacts the bottom outer side of the aforementioned fire hose traction drive belt 57, and the front end of the support roller shaft 5751 of the support roller 575 is supported on the front wall panel support flange 535 of the front wall panel 53 via a front adjustment bearing 57511. The front wall panel support flange 535 extends from the bottom of the front wall panel 53 towards the aforementioned rear wall panel 54. The traction drive belt bracket 574 is configured with a side folding structure. The rear end of the support roller shaft 5751 of the support roller 575 is supported on the rear wall panel support folding edge 545 of the rear wall panel 54 via the support roller shaft adjustment seat 57512. The rear wall panel support folding edge 545 is formed by folding the bottom of the rear wall panel 54 to one side of the front wall panel 53 and corresponds to the front wall panel support folding edge 535. The aforementioned traction drive belt bracket 574 includes a support belt cover 5741 and a support belt cover fixing seat 5742 located in the fire hose traction drive belt cavity 573. The support belt cover fixing seat 5742 is located on the left side of the support belt cover fixing seat 5742. A left fixed connecting arm 57421 for the strap cover is folded upwards, while a right fixed connecting arm 57422 for the strap cover is folded upwards at the right end of the strap cover fixing seat 5742. A front wall panel connecting flange 57423 for the strap cover fixing seat is folded downwards on the front side of the strap cover fixing seat 5742 along its length, and a rear wall panel connecting flange 57424 for the strap cover fixing seat is folded downwards on the rear side of the strap cover fixing seat 5742 along its length. The left end of the strap cover 5741 is fixedly connected to the left fixed connecting arm 57421 for the strap cover by fasteners. The right end is also fixedly connected to the right fixed connecting arm 57422 of the support cover by fasteners. The top surface 57411 of the support cover 5741 contacts the upper inner surface of the aforementioned fire hose traction transmission belt 57. The front wall panel connecting fold 57423 of the support cover fixing seat protrudes from the front side of the fire hose traction transmission belt cavity 573 and is fixed to the aforementioned front wall panel 53 by screws. The rear wall panel connecting fold 57424 of the support cover fixing seat protrudes from the rear side of the fire hose traction transmission belt cavity 573 and is fixed to the aforementioned rear wall panel 54 by screws.

[0039] Please refer to Figures 5 and 5a, and in conjunction with Figures 1 and 2. The aforementioned latch 56 includes a latch plate 561, a front connecting rod 562, a rear connecting rod 563, a front hinge arm 564, a rear hinge arm 565, a connecting rod shaft 566, a locking rod 567, a front tension spring 568a, a rear tension spring 568b, and a locking rod hook plate 569. The latch plate 561 is fixed to the right side of the aforementioned latch connecting seat 7 by latch plate fixing screws 5611. The front connecting rod 562 and the rear connecting rod 563 are respectively located in the latch... The front and rear sides and upper end of plate 561 are hinged to the locking plate 561 by the aforementioned connecting shaft 566. The upper end of the front hinge arm 564 contacts the front side of the front connecting rod 562, and the upper end of the rear hinge arm 565 contacts the rear side of the rear connecting rod 563. The lower ends of the front hinge arm 564 and the lower ends of the rear hinge arm 565 extend downward to the extent corresponding to the locking rod hook plate 569. The locking rod 567 is connected between the lower ends of the front and rear hinge arms 564 and 565, and the front tension spring 568a is sleeved on it. On the front link 562 and the front articulated arm 564, the upper end of the front tension spring 568a is supported on the front articulated arm shoulder 5641 at the upper end of the front articulated arm 564, and the lower end is supported on the lower part of the front articulated arm 564. The rear tension spring 568b is sleeved on the rear link 563 and the rear articulated arm 565. The upper end of the rear tension spring 568b is supported on the rear articulated arm shoulder 5651 at the upper end of the rear articulated arm 565, and the lower end is supported on the lower part of the rear articulated arm 565. The locking rod hook plate 569 is connected to the locking rod. The hook plate screw 5691 is fixed to the right side of the second hook arm claw 241 of the aforementioned second hook arm 24 of the lock. A lock hook 5692 is formed on the right side of the lock rod hook plate 569, and the lock hook 5692 is hooked on the middle of the aforementioned lock rod 567. Similarly, a lock rod hook plate 569 is fixed to the rear side of the first hook arm claw 231 of the aforementioned first hook arm 23 of the lock. A lock hook 5692 is also formed on the rear side of the lock rod hook plate 569.

[0040] Because the aforementioned locking post 55 has a locking post neck 552 in the middle (shown in Figures 1 and 4), and because the first and second detachment connection holes 211 and 221 of the aforementioned locking post are gourd-shaped, the locking post 55 can be reliably positioned when the locking post neck 552 engages with the smaller diameter end of the first detachment connection hole 211 or the second detachment connection hole 221 of the locking post. In the retracted state, the locking post 55 is inserted into the second detachment connection hole 221 of the locking post, and correspondingly, the locking rod 567 of the aforementioned locking buckle 56 structure is engaged with the locking hook 5692 of the locking rod pull plate 569, which is located on the second hook arm claw 241 of the second hook arm 24 of the locking buckle.

[0041] Please refer to Figure 7 and Figure 4 for details. Since the cooperation between the aforementioned right drive wheel 576 of the traction drive belt and the aforementioned right drive motor 50 of the fire hose traction drive belt is the same as the cooperation between the aforementioned left drive wheel 571 of the traction drive belt and the aforementioned left drive motor 58 of the fire hose traction drive belt, and the structure of the aforementioned right drive motor 50 of the fire hose traction drive belt is the same as the structure of the left drive motor 58 of the fire hose traction drive belt, the applicant will only describe the left drive motor 58 of the fire hose traction drive belt below. A left drive wheel cavity 5711 is formed between the inner wall of the left drive wheel 571 of the traction drive belt and the outer wall of the left drive motor 58 of the fire hose traction drive belt (i.e., there is space between the two). Left drive wheel embedding protrusions 57111, extending from the front end to the rear end of the cavity wall, are formed at intervals around the circumference of the left drive wheel cavity 5711. The recessed area between two adjacent left drive wheel embedding protrusions 57111 forms a gasket embedding boss mating cavity 57112. During traction... The front and rear faces of the left drive pulley 571 of the transmission belt, and the end faces corresponding to the embedded protrusions 57111 of the left drive pulley, are provided with left drive pulley cover plate fixing screw holes 57113. The front and rear faces of the left drive motor 58 of the fire hose traction transmission belt are each recessed into the front and rear faces of the left drive pulley 571 of the traction transmission belt, respectively, forming a gasket compensation cavity 581. The concept of the gasket compensation cavity 581 here is: a gasket 582 is set in the cavity, and the gasket 582 fills the cavity. Stacked gaskets are embedded in the gasket compensation cavity 581. The gasket 582 has gasket embedding bosses 5821 and left drive wheel embedding protrusion mating cavities 5822 arranged at intervals on its outer wall and around its circumference. The gasket embedding bosses 5821 and the aforementioned gasket embedding boss mating cavities 57112 complement each other, while the left drive wheel embedding protrusion mating cavities 5822 mate with the aforementioned left drive wheel embedding protrusions 57111. At positions corresponding to the front and rear ends of the left drive wheel 571 of the traction drive belt, a diameter larger than that of the left drive wheel 571 is provided. The transmission wheel cover plate 572 of the outer diameter of the transmission wheel 571 has a drive motor shaft clearance hole 5721 in the center of the transmission wheel cover plate 572. The total thickness of the aforementioned gasket 582 is consistent with the width of the aforementioned gasket compensation cavity 581. The width refers to the distance between the front end face of the left drive motor 58 of the fire hose traction transmission belt and the front end face of the left transmission wheel 571 of the traction transmission belt, so that the side of the gasket 582 facing the left drive motor 58 of the fire hose traction transmission belt is in close contact with the motor rotor of the left drive motor 58 of the fire hose traction transmission belt.A left drive wheel fixing screw hole 5723 is provided on the drive wheel cover plate 572 at a position corresponding to the aforementioned left drive wheel cover plate fixing screw hole 57113. A left drive wheel fixing screw 57231 is provided at a position corresponding to the left drive wheel fixing screw hole 5723. The left drive wheel fixing screw 57231 is screwed into the aforementioned left drive wheel cover plate fixing screw hole 57113 to fix the drive wheel cover plate 572 to the aforementioned left drive wheel 571 of the traction drive belt. The front end of the drive motor support shaft 583 of the left drive motor 58 with traction drive belt passes sequentially through the gasket center hole 5824, the drive motor shaft clearance hole 5721, the aforementioned front wall panel motor shaft left positioning groove 533, and the front cover left drive motor shaft support hole 513, and is limited by the drive motor support shaft front end limiting nut 5831 (shown in FIG. 4), while the rear end of the drive motor support shaft 583 passes sequentially through the gasket center hole 5724, which is located at the center of the gasket 582. 824. The drive motor shaft clearance hole 5721, the aforementioned rear wall panel motor shaft left support hole 543, and the rear cover left drive motor shaft support hole 523 are all limited by the drive motor support shaft rear end limiting nut 5832. On the aforementioned transmission wheel cover plate 572, and at a position corresponding to the end face of the aforementioned fire hose traction transmission belt left drive motor 58, cover plate screw holes 5722 are provided at intervals around the aforementioned drive motor shaft clearance hole 5721. The motor is mounted on the cover plate screw holes 5722. The rotor fixing screw 57221 has a washer screw hole 5823 on the aforementioned washer 582 at a position corresponding to the aforementioned cover plate screw hole 5722. A motor rotor cover plate fixing screw hole 584 is provided on the end face of the left drive motor 58 of the fire hose traction drive belt facing the drive wheel cover plate 572 at a position corresponding to the cover plate screw hole 5722, thereby fixing the drive wheel cover plate 572, washer 582, and motor rotor of the left drive motor 58 of the fire hose traction drive belt to each other. In this embodiment, the aforementioned left drive wheel 571 and right drive wheel 576 of the traction drive belt are synchronous pulleys, and the aforementioned fire hose traction drive belt 57 is a synchronous belt. A connecting disc fixing shaft front axle head through hole 5151 is provided in the center of the aforementioned front pressure ring clearance cavity 515, and a connecting disc fixing shaft rear axle head through hole 5251 is provided in the center of the aforementioned rear pressure ring clearance cavity 525.

[0042] Referring to Figure 1, the aforementioned roller-type compression mechanism 6 includes a front elastic rope connecting plate 61, a rear elastic rope connecting plate 62, a front elastic rope end pressure ring 63, a rear elastic rope end pressure ring 64, a connecting plate fixing shaft 65, and a set of fire hose connector clearance elastic ropes 66. The front elastic rope connecting plate 61 and the rear elastic rope connecting plate 62 are aligned front to back and have connecting plate fixing shaft holes at their respective center positions. The front and rear elastic rope connecting plates 61 and 62 are fixed to the middle of the connecting plate fixing shaft 65 by the connecting plate fixing shaft holes. On the edge of the front elastic rope connecting plate 61 and around the circumference of the front elastic rope connecting plate 61, there are elastic ropes of equal number and corresponding positions to the set of fire hose connector clearance elastic ropes 66. The front end of the rope passes through a hole, and a front rope head guide sleeve 611 is embedded in the front end of the elastic rope through hole. At the edge of the rear connecting disc 62 of the elastic rope, and around the circumference of the rear connecting disc 62, there are elastic rope rear end through holes at intervals, the number of which is equal to and corresponding to the number of a set of fire hose connector clearance elastic ropes 66. A rear rope head guide sleeve 621 is embedded in the rear end through hole. The middle of a set of fire hose connector clearance elastic ropes 66 is located between the front and rear connecting discs 61 and 62 of the elastic rope, and contacts the upper surface of the fire hose traction drive belt 57. The front rope head 661 of this set of fire hose connector clearance elastic ropes 66 extends through the aforementioned front rope head guide sleeve 611 to the front side of the front connecting disc 61 of the elastic rope. And in a bent state, a set of fire hose connectors allows the rear end of the elastic rope 66 to pass through the aforementioned rear rope end guide sleeve 621, extending the elastic rope rear connecting disc 62 and in a bent state. The elastic rope front rope end pressure ring 63 is located on the front side of the elastic rope front connecting disc 61 at the position corresponding to the aforementioned front pressure ring clearance cavity 515, and is fixed to the front side of the elastic rope front connecting disc 61 by a set of spaced elastic rope front rope end pressure ring fixing screws 6311 at the positions corresponding to the elastic rope front rope end pressure ring screw holes 631 opened on the elastic rope front rope end pressure ring 63, and at the same time clamps the aforementioned front rope end 661 between the elastic rope front rope end pressure ring 63 and the opposite side of the elastic rope front connecting disc 61. The elastic rope rear rope end pressure ring 6 4. At the position corresponding to the aforementioned rear pressure ring clearance cavity 525, located behind the elastic rope rear connecting disc 62, and secured by a set of spaced elastic rope rear rope head pressure ring fixing screws 6411 at positions corresponding to the elastic rope rear rope head pressure ring screw holes 641 on the elastic rope rear rope head pressure ring 64, the elastic rope rear rope head pressure ring 64 is fixed to the rear side of the elastic rope rear connecting disc 62. Simultaneously, the aforementioned rear rope head is clamped between the elastic rope rear rope head pressure ring 64 and the opposite side of the elastic rope rear connecting disc 62. The front end of the aforementioned connecting disc fixing shaft 65 extends through the aforementioned connecting disc fixing shaft front shaft head through hole 5151 to the front side of the aforementioned front cover 51 and is rotatably supported on the front bearing seat 651, which is fixed to the front side of the front cover 51.The rear end of the connecting disc fixing shaft 65 extends through the hole 5251 to the rear side of the rear cover 52 and is rotatably supported on the rear bearing seat 652, which is fixed to the rear side of the rear cover 52.

[0043] In this embodiment, the aforementioned set of fire hose joint clearance elastic ropes 66 is a rubber strip, but it can also be a rubber band braided rope, elastic band, silicone strip, NBR strip, EPDM strip, butyl strip or spring strip, as long as it can meet the elasticity requirements of the fire hose joint.

[0044] Please refer to Figure 9, which shows the hose storage compartment 8 of the aforementioned hose fire truck. It should be noted that this invention can be configured in any way, whether the fire department uses an equipment box or other similar hose storage facility; therefore, the form shown in Figure 9 should not be considered the only possible configuration. Figure 9 illustrates that the invention is positioned precisely on the upper part of the hose storage compartment side plate 81 of the hose storage compartment 8, specifically on the upper part of the rear hose storage compartment side plate 81. However, it can also be positioned on the upper part of the front hose storage compartment side plate 81. The configuration is as described above: inserting the insertion post 1241 into the insertion post seat 12411 fixed to the hose storage compartment side plate 81. Taking Figure 9 as an example, since this invention is positioned on the rear side of the hose storage compartment 8, i.e., the rear hose storage compartment side plate 81, the hand-held hose reeling mechanism 5 of this invention is positioned and connected to the aforementioned second locking arm 22 and the second hook arm 24. However, if the present invention is installed on the front side of the storage compartment 8, i.e., the front side panel 81 of the storage compartment, then the hand-held hose reeling mechanism 5 of the present invention is positioned and connected to the aforementioned first engaging arm 21 of the locking post and the first hook arm 23 of the locking buckle. After the fire rescue mission is completed, when it is necessary to retrieve the water hose that was originally brought out of the storage compartment 8, the firefighters first guide the end of the fire hose (also called the starting end) into the space between the fire hose traction transmission belt 57 and the middle of the fire hose joint of the roller-type pressing mechanism 6, which is below the elastic rope 661. Then, while the reciprocating frame drive mechanism 4 mentioned above is working, the aforementioned hand-held hose reeling mechanism 5 also works accordingly. The fire hose is retrieved from left to right through the present invention and into the storage compartment 8. The working process of the aforementioned hand-held hose reeling mechanism 5 is described below.

[0045] With the left and right drive motors 58 and 50 of the fire hose traction transmission belt working simultaneously, the fire hose passes between the top of the fire hose traction transmission belt 57 and the middle of the fire hose joint clearance elastic rope 66 and is retracted into the hose storage box 8. Since the aforementioned displacement frame 31 moves back and forth alternately, the hand-held hose reeling mechanism 5 and the rolling hose pressing mechanism 6 also move back and forth alternately during the hose reeling process, so that the fire hose is laid in an orderly folded state in the hose storage box 8 while being reeled in. When the fire hose connector arrives at the roller-type hose pressing mechanism 6, a set of fire hose connector clearance elastic ropes 66, due to their elastic effect, will press against the front (end) of the fire hose connector. Under the rotation of the front and rear connecting discs 61 and 62 of the elastic rope (rotation occurs through the friction between the set of fire hose connector clearance elastic ropes 66 and the fire hose traction drive belt 57), the set of fire hose connector clearance elastic ropes 66 drives the fire hose connector to move. Since the set of fire hose connector clearance elastic ropes 66 are spaced apart, they can accommodate the passage of the fire hose connector. Furthermore, since the fire hose connector clearance elastic ropes 66 are elastic, they will not obstruct the passage of the fire hose connector. Thus, the requirements of automation, saving manpower, time, and effort, and high efficiency in hose reeling are met throughout the entire process of the roller-type hose pressing mechanism 6 working in conjunction with the fire hose traction drive belt 57.

[0046] During the process of releasing the fire hose, the left and right drive motors 58 and 50 of the aforementioned fire hose traction transmission belt in the structural system of the reciprocating shifting frame drive mechanism 4 and the hand-held hose reeling mechanism 5 are not working, i.e., the device of the present invention is not activated. Of course, when releasing the fire hose from the hose storage compartment 8, a better method is to directly lead the fire hose out of the hose storage compartment 8 while avoiding the device of the present invention. In summary, the technical solution provided by the present invention makes up for the shortcomings of the prior art, successfully completes the inventive task, and faithfully realizes the technical effects described by the applicant in the above-mentioned technical effects section.

Claims

1. An automatic fire hose reel device, characterized in that: The system includes a side panel fixing frame (1), which is detachably connected to the side panel of the fire truck's strapping compartment or equipment box in use; a portable strapping mechanism mounting bracket (2) and a mounting bracket reciprocating mechanism (3). The portable strapping mechanism mounting bracket (2) is fixed to the upper part of the mounting bracket reciprocating mechanism (3), while the mounting bracket reciprocating mechanism (3) is laterally reciprocating on the side panel fixing frame (1) and connected to the side panel fixing frame (1). The following components constitute a sliding pair: a reciprocating shifting frame drive mechanism (4), which is mounted on the side plate fixing frame (1) and cooperates with the mounting frame reciprocating shifting mechanism (3); a hand-held belt take-up mechanism (5), which is detachably connected to the hand-held belt take-up mechanism mounting frame (2); and a roller-type belt pressing mechanism (6), which is mounted on the hand-held belt take-up mechanism (5).

2. The automatic fire hose reel device according to claim 1, characterized in that: The side plate fixing frame (1) includes an upper crossbeam (11), a lower crossbeam (12), a left end connecting plate (13) of the crossbeam, and a right end connecting plate (14) of the crossbeam. A displacement frame roller track (111) extending from the left end to the right end of the upper crossbeam (11) is formed on the rear side of the upper crossbeam (11) along its length direction. A displacement frame roller track (112) extending from the left end to the right end of the upper crossbeam (11) and having an open bottom is formed on the lower part of the upper crossbeam (11) along its length direction. A groove (112) extending from the left end to the right end of the upper crossbeam (11) and having an open bottom is formed on the lower crossbeam (12) along its rear side. (12) has a lower crossbeam groove (121) extending from the left end to the right end. A displacement frame limiting roller track (122) is formed at the front side of the lower crossbeam groove (121) and separated by the lower crossbeam partition wall. A displacement frame lower roller track (123) extending from the left end to the right end of the upper crossbeam (12) is formed on the upper front side of the lower crossbeam (12). Insertion column frames (124) are provided at intervals along the length of the lower crossbeam (12). Insertion columns (1241) are fixed on the insertion column frames (124). In the use state, the insertion column... (1241) The upper and lower crossbeams (11, 12) are connected to the side panel of the fire truck's storage compartment or equipment box via the insert seat (12411). The upper and lower crossbeams are parallel to each other in the length direction. The upper end of the left end connecting plate (13) of the crossbeam is fixed to the left end face of the upper crossbeam (11), while the lower end of the left end connecting plate (13) of the crossbeam is fixed to the left end face of the lower crossbeam (12). The upper end of the right end connecting plate (14) of the crossbeam is fixed to the right end face of the upper crossbeam (11), while the lower end of the right end connecting plate (14) of the crossbeam is fixed to the right end face of the lower crossbeam (12). Fixed; the mounting frame reciprocating mechanism (3) forms a sliding pair with the upper crossbeam (11) at the position corresponding to the upper roller track (111) of the displacement frame, and the mounting frame reciprocating mechanism (3) forms a sliding pair with the lower crossbeam (12) at the position corresponding to the displacement frame limiting roller track (122) and the displacement frame lower roller track (123); the reciprocating frame driving mechanism (4) is disposed between the upper and lower crossbeams (11, 12) and is fixed with the upper crossbeam groove (112) and the lower crossbeam groove (121).

3. The automatic fire hose reel device according to claim 2, characterized in that: The mounting frame reciprocating mechanism (3) includes a displacement frame (31), a pair of upper guide rollers (32), a pair of lower limit rollers (33), and a pair of lower guide rollers (34). A lower limit roller mounting flange (311) is folded backward at the lower part of the displacement frame (31), and a displacement frame platform (312) is folded backward at the upper part of the displacement frame (31). A first mounting frame fixing seat (3121) with a U-shaped cross-section is folded upward on the left side of the displacement frame platform (312). A second mounting bracket (3122) with a U-shaped cross-section is folded upward on the right side of the platform (312). A pair of guide roller mounting seats (3123) for the displacement frame are folded downward at the rear edge of the displacement frame platform (312). A displacement frame drive block groove (313) is longitudinally formed in the middle of the width direction of the displacement frame (31). Each of the pair of guide rollers (32) for the displacement frame is rotatably mounted on a pair of guide roller shafts (321). The front side of the guide roller mounting seat (3123) of the displacement frame and the roller raceway (111) of the displacement frame form a rolling pair. A pair of lower limit rollers (33) of the displacement frame are each rotatably mounted on the side of the lower limit roller mounting flange (311) of the displacement frame in a horizontal state via the lower limit roller shaft (331), and form a rolling pair with the roller raceway (122) of the displacement frame. A pair of lower guide rollers (34) of the displacement frame are each longitudinally mounted on the lower guide roller shaft (341) and corresponding to a pair of displacement frames. The lower limit roller (33) is rotatably positioned above the lower rear side of the displacement frame (31); the hand-held take-up mechanism mounting frame (2) is fixed to the first fixed seat (3121) and the second fixed seat (3122) of the mounting frame; the displacement frame drive mechanism (4) is positioned corresponding to the displacement frame drive block groove (313) and cooperates with the displacement frame (31); the hand-held take-up mechanism (5) together with the roller-type pressing mechanism (6) is detached from the upward-facing side of the hand-held take-up mechanism mounting frame (2).

4. The automatic fire hose reel device according to claim 3, characterized in that: The portable strap-holding mechanism mounting frame (2) consists of a first locking post arm (21), a second locking post arm (22), a first locking hook arm (23), and a second locking hook arm (24) forming an overall X-shape. The first locking post arm (21) and the first locking hook arm (23) are front-to-back, while the second locking post arm (22) and the second locking hook arm (24) are left-to-right. The first locking post arm (21) is located between the front sides of the second locking post arm (22) and the second locking hook arm (24), while the first locking hook arm (23) is located between the rear sides of the second locking post arm (22) and the second locking hook arm (24). A first locking post detachment connection hole (211) is provided at the front end of the first locking post arm (21), and a first locking post detachment connection hole (211) is provided at the front end of the second locking post arm (21). (22) has a second detachment connection hole (221) at the left end of the locking post. The rear end of the first hook arm (23) is bent downward to form a first hook arm claw (231). The rear end of the second hook arm (24) is bent downward to form a second hook arm claw (241). The hand-held belt taking mechanism (5) together with the roller-type belt pressing mechanism (6) is simultaneously detached from the first locking post cooperating arm (211) and the first hook arm claw (231) at the position corresponding to the first detachment connection hole (211) of the locking post and the first hook arm claw (231), or simultaneously detached from the second locking post cooperating arm (22) and the second hook arm claw (241) at the position corresponding to the second detachment connection hole (221) of the locking post and the second hook arm claw (241).

5. The automatic fire hose reel device according to claim 3, characterized in that: The reciprocating frame drive mechanism (4) includes a frame drive motor (41), a frame drive reduction gearbox (42), a drive pulley (43), a driven pulley (44), a frame traction belt (45), a frame drive block (46), a frame traction belt fixing arm (47), a frame drive reduction gearbox fixing bracket (48), and a driven pulley rotation support bracket (49). The frame drive reduction gearbox fixing bracket (48) has a pair of brackets located between the left ends of the upper and lower crossbeams (11, 12), with the upper edge (481) of the pair of frame drive reduction gearbox fixing brackets (48) inserted into the groove (112) of the upper crossbeam and screwed at positions corresponding to the screw holes (482) of the fixing bracket. The upper crossbeam (11) is fixed, and the lower end of the displacement frame drive reduction gearbox fixing bracket (48) is folded forward to form a lower crossbeam slot fitting plate (483). The lower crossbeam slot fitting plate (483) is embedded in the lower crossbeam slot (121) and is fixed to the lower crossbeam (12) by the lower crossbeam slot fitting plate fixing screw at the position corresponding to the lower crossbeam fitting plate screw hole (4831) opened on the lower crossbeam slot fitting plate (483). The displacement frame drive motor (41) is in transmission cooperation with the displacement frame drive reduction gearbox (42) at the position corresponding to the rear side of the displacement frame drive reduction gearbox (42), and the displacement frame drive reduction gearbox (42) together with the displacement frame drive motor (41) is fixed to a pair of displacement frame drive reduction gearbox fixing brackets (48). 8) The displacement frame drive reduction gearbox is fixed between the ribs (484) and the displacement frame drive reduction gearbox (42) has its final stage power output shaft (421) facing forward. The driving pulley (43) is fixed on the final stage power output shaft (421) of the displacement frame drive reduction gearbox. The driven pulley rotation support bracket (49) is located at the right end between the upper and lower crossbeams (11, 12) and is fixed to the front side of the bracket fixing plate (491). The upper edge of the bracket fixing plate (491) is inserted into the groove (112) of the upper crossbeam and fixed to the upper crossbeam (11) by screws. The lower end of the bracket fixing plate (491) is folded forward to form a bracket fixing plate fold (491). 1) The bracket fixing plate folded edge (4911) is embedded in the lower crossbeam groove (121) and fixed to the lower crossbeam (12) by screws. A pair of bracket fixing plate reinforcing arms (492) are formed longitudinally on the front side of the bracket fixing plate (491). The driven pulley (44) is rotatably supported between the right ends of a pair of driven pulley arms (493) that are corresponding to each other on the driven pulley rotation support bracket (49) via the driven pulley shaft (441). The left end of the displacement frame traction belt (45) is sleeved on the driving pulley (43), and the right end is sleeved on the driven pulley (44). The displacement frame drive block (46) corresponds to the displacement frame drive block groove (313). The displacement frame drive block (46) is shaped like a roller.The displacement frame is fixed to the traction belt fixing arm (47) via a drive rod (461), and the traction belt fixing arm (47) is fixed to the displacement frame traction belt (45). A left filler plate (15a) is provided between the right side of the left end connecting plate (13) of the crossbeam and the left side of the displacement frame drive reduction gearbox fixing bracket (48), and a right filler plate (15b) is provided between the left side of the right end connecting plate (14) of the crossbeam and the right side of the bracket fixing plate (491). The upper ends of the left and right filler plates (15a, 15b) are fixed to the upper crossbeam (11), and the lower ends are fixed to the lower crossbeam (12). The driving pulley (43) and the driven pulley (44) are synchronous pulleys, and the displacement frame traction belt (45) is a synchronous belt.

6. The automatic fire hose reel device according to claim 4, characterized in that: The hand-held hose reeling mechanism (5) includes a front cover (51), a rear cover (52), a front wall panel (53), a rear wall panel (54), a locking post (55), a buckle (56), a fire hose traction drive belt (57), a left drive motor (58) for the fire hose traction drive belt, a right drive motor (50) for the fire hose traction drive belt, and a handle (59). The front cover (51) and the rear cover (52) are positioned opposite each other. Front cover fixing ears (511) are formed at the bottom left and right ends of the front cover (51) facing the rear cover (52), while a front cover handle fixing flange (512) is formed at the top of the front cover (51) facing the rear cover (52). A handle fixing flange (512) is also formed at the left and right ends of the front cover (51). A front cover left drive motor shaft support hole (513) and a front cover right drive motor shaft support hole (514) are respectively provided in front of the fire hose traction drive belt left drive motor (58) and the fire hose traction drive belt right drive motor (50). A front pressure ring relief cavity (515) is formed in the middle of the side of the front cover (51) facing the rear cover (52) and in front of the roller-type pressing mechanism (6). A rear cover fixing ear (521) is formed at the bottom left and bottom right ends of the side of the rear cover (52) facing the front cover (51), and a rear cover fixing ear (521) is formed at the top of the side of the rear cover (52) facing the front cover (51) and in front of the roller-type pressing mechanism (6). A rear cover handle fixing flange (522) is formed at the position of the front cover handle fixing flange (512). A rear cover left drive motor shaft support hole (523) and a rear cover right drive motor shaft support hole (524) are respectively opened at the left and right ends of the rear cover (52) and at positions corresponding to the rear of the left drive motor (58) and right drive motor (50) of the fire hose traction transmission belt. A rear pressure ring clearance cavity (525) is formed in the middle of the side of the rear cover (52) facing the front cover (51) and at a position corresponding to the rear of the roller-type pressing mechanism (6). The front wall panel (53) and the rear wall panel (54) are aligned front to back. A rear pressure ring clearance cavity (525) is formed at the position of the front wall panel (53) facing the rear wall panel (54). A front wall panel left connecting foot (531) is folded horizontally at the lower left end of one side, and a front wall panel right connecting foot (532) is folded horizontally at the lower right end. A front wall panel motor shaft left positioning groove (533) with the left side communicating with the outside is provided at the upper left end of the front wall panel (53), and a front wall panel motor shaft right positioning groove (534) with the right side communicating with the outside is provided at the upper right end of the front wall panel (53). A rear wall panel left connecting foot (541) corresponding to the front wall panel left connecting foot (531) is folded horizontally at the lower left end of the rear wall panel (54) facing the front wall panel (53), and a rear wall panel right connecting foot (542) corresponding to the front wall panel right connecting foot (532) is folded horizontally at the lower right end.A left support hole (543) for the motor shaft of the rear wall panel is provided at the upper left end of the rear wall panel (54) and at the position corresponding to the left positioning groove (533) of the motor shaft of the front wall panel. A right support hole (544) for the motor shaft of the rear wall panel is provided at the upper right end of the rear wall panel (54) and at the position corresponding to the right positioning groove (534) of the motor shaft of the front wall panel. The locking pin (55) is fixed to the bottom of the locking pin seat (551). The upper part of the locking pin seat (551) has a pair of locking pin seat fixing flanges (5511) folded towards each other. The pair of locking pin seat fixing flanges (5511) are respectively below the left connecting feet (531, 541) of the front and rear wall panels and between the right connecting feet (532, 542) of the front and rear wall panels. A locking connector (7) is provided, and a pair of locking connector fixing plates (71) are folded out on the upper part of the locking connector (7). The pair of locking connector fixing plates (71) correspond to the lower part of the right connecting feet (532, 542) of the front and rear wall panels, respectively. The front cover fixing ear (511) at the bottom left end of the front cover (51) is inserted between the left connecting foot (531) of the front wall panel and one of the front locking foot fixing flanges (5511) of the pair of locking foot fixing flanges, and the three are fixed together by fixing screws. The front cover fixing ear (511) at the bottom right end of the front cover (51) is inserted between the right connecting foot (532) of the front wall panel and one of the front locking feet fixing plates (71) of the pair of locking connector fixing plates (71). The rear cover (52) is fixed between the connecting plates and the fixing plates, and the three are fixed together by fixing screws. The rear cover fixing ear (521) at the bottom left end of the rear cover (52) is inserted between the left connecting foot (541) of the rear wall panel and the rear one of the pair of locking pin fixing flanges (5511), and the three are fixed together by a pair of first fixing screws (5411). The rear cover fixing ear (521) at the bottom right end of the rear cover (52) is inserted between the right connecting foot (542) of the rear wall panel and the rear one of the pair of locking connecting plates (71), and the three are fixed together by a pair of second fixing screws (5421). The locking pin (55) is attached to the locking pin base (5511). The position of 51) changes so as to engage with the first detachment connection hole (211) or the second detachment connection hole (221) of the locking post. The latch (56) is located on the right side of the latch connecting seat (7) and is also connected to the right side of the second hook arm claw (241) of the second hook arm (24) of the latch. The fire hose traction transmission belt (57) is located between the front and rear wall panels (53, 54). The left end of the fire hose traction transmission belt (57) is sleeved on the left drive wheel (571) of the traction transmission belt, and the right end is sleeved on the right drive wheel (576) of the traction transmission belt. A traction transmission belt bracket (574) is provided in the fire hose traction transmission belt cavity (573) of the fire hose traction transmission belt (57).The lower part of the traction drive belt bracket (574) extends out of the fire hose traction drive belt cavity (573) along its length direction on the front and rear sides and is fixed to the front wall panel (53) and the rear wall panel (54) respectively. The left drive motor (58) of the fire hose traction drive belt is located at the left end between the front and rear wall panels (53, 54). The left drive wheel (571) of the traction drive belt is sleeved on the left drive motor (58) of the fire hose traction drive belt. The right drive motor (50) of the fire hose traction drive belt is located at the right end between the front and rear wall panels (53, 54). The right drive pulley (576) of the transmission belt is mounted on the right drive motor (50) of the fire hose traction transmission belt. A handle fixing plate (591) is fixed to both the left and right ends of the handle (59). The front end of the handle fixing plate (591) is fixed to the front cover handle fixing flange (512), and the rear end is fixed to the rear cover handle fixing flange (522). The roller-type belt pressing mechanism (6) is rotatably supported between the front and rear covers (51, 52) at a position corresponding to the position between the front pressure ring clearance cavity (515) and the rear pressure ring clearance cavity (525).

7. The automatic fire hose reel device according to claim 6, characterized in that: A support roller (575) is rotatably disposed between opposite sides of the middle of the front wall panel (53) and the rear wall panel (54) along their length. The support roller (575) contacts the bottom outer side of the fire hose traction drive belt (57), and the front end of the support roller shaft (5751) of the support roller (575) is supported on the front wall panel support flange (535) of the front wall panel (53) via a front adjustment bearing (57511). The front wall panel support flange (535) is formed by folding the bottom of the front wall panel (53) towards one side of the rear wall panel (54). The rear end of the support roller shaft (5751) of the fire hose (575) is supported on the rear wall panel support flange (545) of the rear wall panel (54) by the rear adjustment bearing (57512). The rear wall panel support flange (545) is formed by folding the bottom of the rear wall panel (54) onto one side of the front wall panel (53) and corresponds to the front wall panel support flange (535). The traction transmission belt bracket (574) includes a support belt cover (5741) and a support belt cover fixing seat (5742) located in the fire hose traction transmission belt cavity (573). The support belt cover fixing seat (5742) is positioned upwards at the left end. A left fixed connecting arm (57421) for the strap cover is folded out, and a right fixed connecting arm (57422) for the strap cover is folded upward at the right end of the strap cover fixing seat (5742). A front wall panel connecting flange (57423) for the strap cover fixing seat is folded downward at the front side of the strap cover fixing seat (5742) along its length, and a rear wall panel connecting flange (57424) for the strap cover fixing seat is folded downward at the rear side of the strap cover fixing seat (5742) along its length. The left end of the strap cover (5741) is fixedly connected to the left fixed connecting arm (57421) for the strap cover by fasteners. The right end is also fixedly connected to the right fixed connecting arm (57422) of the support cover by fasteners. The top surface (57411) of the support cover (5741) contacts the upper inner surface of the fire hose traction transmission belt (57). The front wall panel connecting flange (57423) of the support cover fixing seat protrudes from the front side of the fire hose traction transmission belt cavity (573) and is fixed to the front wall panel (53) by screws. The rear wall panel connecting flange (57424) of the support cover fixing seat protrudes from the rear side of the fire hose traction transmission belt cavity (573) and is fixed to the rear wall panel (54) by screws.The latch (56) includes a latch plate (561), a front connecting rod (562), a rear connecting rod (563), a front hinge arm (564), a rear hinge arm (565), a connecting rod shaft (566), a locking rod (567), a front tension spring (568a), a rear tension spring (568b), and a locking rod hook plate (569). The latch plate (561) is fixed to the right side of the latch connecting seat (7) by latch plate fixing screws (5611). The front connecting rod (562) and the rear connecting rod (563) are located on the front and rear sides of the latch plate (561), respectively. Furthermore, the upper end is hinged to the locking plate (561) by the connecting shaft (566), the upper end of the front hinge arm (564) is in contact with the front side of the front connecting rod (562), the upper end of the rear hinge arm (565) is in contact with the rear side of the rear connecting rod (563), and the lower ends of the front hinge arm (564) and the rear hinge arm (565) extend downward to the extent corresponding to the locking rod hook plate (569). The locking rod (567) is connected between the lower ends of the front and rear hinge arms (564, 565), and the front tension spring (568a) is sleeved on the front connecting rod (562). The front tension spring (568a) is mounted on the front articulated arm (564), with its upper end supported on the front articulated arm shoulder (5641) at the upper end of the front articulated arm (564) and its lower end supported on the lower part of the front articulated arm (564). The rear tension spring (568b) is sleeved on the rear connecting rod (563) and the rear articulated arm (565), with its upper end supported on the rear articulated arm shoulder (5651) at the upper end of the rear articulated arm (565) and its lower end supported on the lower part of the rear articulated arm (565). The locking rod hook plate (569) passes through the locking rod hook plate. A screw (5691) is fixed to the right side of the second hook arm claw (241) of the second hook arm (24) of the latch. A locking hook (5692) is formed on the right side of the locking rod hook plate (569), and the locking hook (5692) hooks onto the middle of the locking rod (567). A locking rod hook plate (569) is also fixed to the rear side of the first hook arm claw (231) of the first hook arm (23) of the latch, and a locking hook (5692) is also formed on the rear side of the locking rod hook plate (569).

8. The automatic fire hose reel device according to claim 5, characterized in that: The cooperation method between the right drive pulley (576) of the traction drive belt and the right drive motor (50) of the fire hose traction drive belt is the same as the cooperation method between the left drive pulley (571) of the traction drive belt and the left drive motor (58) of the fire hose traction drive belt. Furthermore, the structure of the right drive motor (50) of the fire hose traction drive belt is the same as the structure of the left drive motor (58) of the fire hose traction drive belt. A left drive pulley cavity (5711) is formed between the inner wall of the left drive pulley (571) and the outer wall of the left drive motor (58). The cavity wall of the left drive pulley cavity (5711) is spaced apart around the circumference of the left drive pulley cavity (5711). The device has a left drive wheel embedding protrusion (57111) extending from the front end to the rear end of the cavity wall of the left drive wheel cavity (57111). The recessed area between each pair of adjacent left drive wheel embedding protrusions (57111) forms a gasket embedding boss mating cavity (57112). Left drive wheel cover plate fixing screw holes (57113) are opened on the front end face and rear end face of the left drive wheel (571) of the traction drive belt and corresponding to the end face of the left drive wheel embedding protrusion (57111). The front end face and rear end face of the left drive motor (58) of the fire hose traction drive belt are each recessed into the front end face and rear end face of the left drive wheel (571) of the traction drive belt, and each forms a gasket compensation cavity (581). The compensation cavity (581) contains stacked gaskets (582). On the outer wall of the gasket (582) and around the circumference of the gasket (582), there are spaced-apart gasket mounting bosses (5821) and left drive wheel mounting protrusion mating cavities (5822). The gasket mounting bosses (5821) and the gasket mounting boss mating cavities (57112) compensate for each other, while the left drive wheel mounting protrusion mating cavities (5822) mate with the left drive wheel mounting protrusions (57111). At the positions corresponding to the front end face and the rear end face of the left drive wheel (571) of the traction drive belt, there are drive wheel cover plates (57111) with a diameter larger than the outer diameter of the left drive wheel (571) of the traction drive belt. 72) A drive motor shaft clearance hole (5721) is provided in the center of the transmission wheel cover plate (572). The total thickness of the gasket (582) is consistent with the width of the gasket compensation cavity (581), and the side of the gasket (582) facing the left drive motor (58) of the fire hose traction transmission belt is in close contact with the motor rotor of the left drive motor (58) of the fire hose traction transmission belt. A cover plate left drive wheel fixing screw hole (5723) is provided on the transmission wheel cover plate (572) at the position corresponding to the left drive wheel cover plate fixing screw hole (57113). A cover plate left drive wheel fixing screw (57231) is provided at the position corresponding to the cover plate left drive wheel fixing screw hole (5723).The left drive wheel fixing screw (57231) of the cover plate is screwed into the left drive wheel cover plate fixing screw hole (57113) to fix the drive wheel cover plate (572) to the left drive wheel (571) of the traction drive belt. The front end of the drive motor support shaft (583) of the left drive motor (58) of the fire hose traction drive belt passes sequentially through the gasket center hole (5824) formed at the center position of the gasket (582), the drive motor shaft clearance hole (5721), the left positioning groove (533) of the motor shaft of the front wall panel, and the left drive motor shaft support of the front cover. The bearing hole (513) is defined by a nut (5831) at the front end of the drive motor support shaft, and the rear end of the drive motor support shaft (583) passes sequentially through a gasket center hole (5824) formed at the center of the gasket (582), a drive motor shaft clearance hole (5721), a left support hole (543) for the motor shaft of the rear wall panel, and a left drive motor shaft support hole (523) for the rear cover, and is defined by a nut (5832) at the rear end of the drive motor support shaft. This is on the transmission wheel cover plate (572) and corresponds to the fire hose traction transmission... A cover plate screw hole (5722) is provided at intervals around the drive motor shaft clearance hole (5721) on the end face of the left drive motor (58) of the fire hose traction transmission belt. A motor rotor fixing screw (57221) is provided on the cover plate screw hole (5722). A washer screw hole (5823) is provided on the washer (582) at a position corresponding to the cover plate screw hole (5722). On the end face of the left drive motor (58) of the fire hose traction transmission belt facing the drive wheel cover plate (572), and at a position corresponding to the cover plate screw hole (5722), a washer screw hole (5823) is provided. A motor rotor cover plate fixing screw hole (584) is provided at position 5722). The motor rotor fixing screw (57221) is screwed into the motor rotor cover plate fixing screw hole (584) through the washer screw hole (5823) to fix the transmission wheel cover plate (572), the washer (582), and the motor rotor of the left drive motor (58) of the fire hose traction transmission belt to each other. The left transmission wheel (571) and the right transmission wheel (576) of the traction transmission belt are synchronous belt pulleys, and the fire hose traction transmission belt (57) is a synchronous belt.

9. The automatic fire hose reel device according to claim 6, characterized in that: A connecting disc fixing shaft front shaft head through hole (5151) is provided in the center of the front pressure ring relief cavity (515), and a connecting disc fixing shaft rear shaft head through hole (5251) is provided in the center of the rear pressure ring relief cavity (525). The roller-type pressing mechanism (6) includes an elastic rope front connecting disc (61), an elastic rope rear connecting disc (62), an elastic rope front rope head pressure ring (63), an elastic rope rear rope head pressure ring (64), a connecting disc fixing shaft (65), and a set of fire hose joint relief elastic ropes (66). The elastic rope front connecting disc (61) and the elastic rope rear connecting disc (62) are corresponding to each other and have a connecting disc at their respective center positions. The connecting disc fixing shaft hole is used to fix the front and rear connecting discs (61, 62) of the elastic rope to the middle of the connecting disc fixing shaft (65). At the edge of the front connecting disc (61) and around the circumference of the front connecting disc (61), there are elastic rope front end through holes at intervals, the number of which is equal to the number of elastic ropes (66) in a set of fire hose connectors and their corresponding positions. A front rope head guide sleeve (611) is embedded in the elastic rope front end through hole. At the edge of the rear connecting disc (62) and around the circumference of the rear connecting disc (62), there are also a number of elastic rope front end through holes at intervals, the number of which is equal to the number of fire hose connectors in a set of fire hose connectors. The rear ends of the elastic ropes (66) of the set of fire hose connectors are passed through holes of equal number and corresponding positions, and a rear rope end guide sleeve (621) is embedded in the rear end pass hole of the elastic rope. The middle part of the set of fire hose connectors is located between the front and rear connecting discs (61, 62) of the elastic rope and is in contact with the upper surface of the fire hose traction drive belt (57). The front rope end (661) of the set of fire hose connectors extends to the front side of the front connecting disc (61) of the elastic rope through the front rope end guide sleeve (611) and is in a bent state, while the rear rope end of the set of fire hose connectors passes through the rear rope end guide sleeve (621). The elastic cord extends to the rear side of the connecting disc (62) and is in a bent state. The elastic cord front end pressure ring (63) is located on the front side of the elastic cord front connecting disc (61) at a position corresponding to the front pressure ring clearance cavity (515). The elastic cord front end pressure ring (63) is fixed to the front side of the elastic cord front connecting disc (61) by a set of spaced elastic cord front end pressure ring fixing screws (6311) at positions corresponding to the elastic cord front end pressure ring screw holes (631) opened on the elastic cord front end pressure ring (63). At the same time, the front cord end (661) is clamped between the elastic cord front end pressure ring (63) and the opposite side of the elastic cord front connecting disc (61).The elastic rope rear end retainer (64) is located on the rear side of the elastic rope rear connecting disc (62) at a position corresponding to the rear retainer clearance cavity (525). A set of spaced-apart elastic rope rear end retainer fixing screws (6411) at positions corresponding to the elastic rope rear end retainer screw holes (641) on the elastic rope rear end retainer (64) secure the elastic rope rear end retainer (64) to the rear side of the elastic rope rear connecting disc (62), simultaneously clamping the rear rope end against the opposing side of the elastic rope rear end retainer (64) and the elastic rope rear connecting disc (62). Between the sides, the front end of the connecting disc fixing shaft (65) extends through the front axle head through hole (5151) to the front side of the front cover (51) and is rotatably supported on the front bearing seat (651), which is fixed to the front side of the front cover (51). The rear end of the connecting disc fixing shaft (65) extends through the rear axle head through hole (5251) to the rear side of the rear cover (52) and is rotatably supported on the rear bearing seat (652), which is fixed to the rear side of the rear cover (52).

10. The automatic fire hose reel device according to claim 9, characterized in that: The set of fire hose joint clearance elastic ropes (66) mentioned above are rubber strips, rubber band braided ropes, elastic bands, silicone strips, NBR strips, EPDM strips, butyl strips or spring strips.

Images