Automatic take-up device for fire hose

Abstract

The utility model discloses a fire hose automatic take-up device and belongs to the technical field of fire fighting equipment. Comprising a left wall plate and a right wall plate, and the left wall plate and the right wall plate are connected with each other in the state that a distance is kept between the opposite sides; the belt collecting mechanism is arranged between the opposite sides of the left wall plate and the right wall plate; the device is characterized in that the hose take-up mechanism comprises a hose continuous traction device for taking up the fire hose and a rolling cage type hose pressing device which is used for applying force to the fire hose in the take-up process so as to be attached to the hose continuous traction device and is also used for allowing a fire hose connector to pass through without obstacles; the continuous water hose pulling and conveying device is arranged between the left wall plate and the right wall plate, and the rolling cage type hose pressing device is arranged between the opposite sides of the left wall plate and the right wall plate at the position corresponding to the upper portion of the continuous water hose pulling and conveying device and makes contact with the continuous water hose pulling and conveying device. The automatic take-up device has the advantages that the ideal automatic take-up effect of the mechanical fire hose is achieved; the whole structure is simple and convenient to manufacture; the efficiency is high; and good adaptability to the water hose is embodied.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment, and in particular relates to an automatic retracting device for a fire hose. Background Art

[0002] Fire hoses are essential equipment for transporting high-pressure water, foam, and other flame-retardant liquids during firefighting and disaster relief operations. After a call and the completion of a firefighting and disaster relief mission, the fire hoses, previously laid on the ground and / or other supports, need to be retrieved back onto the fire truck and stored in a ready-to-use state for the next use. For this reason, the aforementioned automatic fire hose retraction device can also be referred to as a mechanical automatic fire hose retraction device (the same applies hereinafter).

[0003] Fire hose lines often require long runs for firefighting and disaster relief operations. This is especially true when fire hydrants are limited or nonexistent, the fire scene is far from a water source like a river or pond, and the water tanks of fire trucks cannot meet the firefighting water demand. Consequently, the hose's water intake (inlet) must be extended to the aforementioned river or pond. Consequently, in many cases, the length of the fire hose can reach hundreds or even thousands of meters. Consequently, retrieving the previously laid fire hose by exhausted firefighters, who have just completed a rescue mission, is undoubtedly demanding. Furthermore, manually retrieving the lengthy hose is inefficient and time-consuming. Given the foregoing, it is of great significance to explore and design a fire hose retraction device that combines ideal automatic retraction with a simple structure and reliable operation.

[0004] Technical information related to automatic fire hose retraction devices can be found in published Chinese patent documents. For example, CN207482997U recommends a "combined fire hose reeling device." According to paragraph 0018 of the patent's specification, when reeling in the hose, one end or the folded end of the hose is passed between a pair of squeezing rollers, then around a tension roller and clamped into a clamping rod. The drive motor is started to drive the roller shaft and the hose is wound around the rotating shaft. After winding, the coiled hose is removed from the rotating shaft. Another example is CN208700324U, which describes an "automatic fire hose reeling device." This patent describes a method in which the hose is cleaned by a roller brush before being reeled in. The aforementioned patents, which are not limited to the examples, each have technical effects described in the technical effect column of the specification. However, since they are only targeted at the situation of winding hoses with relatively limited lengths and without a hose joint (also known as a "hose interface") for connecting two adjacent hoses end to end, conventional fire hoses have single lengths of 10m, 15m, 20m, 25m, 30m, or 45m, etc. (with diameters of 40mm, 50mm, 65mm, or 80mm, etc.). However, as mentioned above, when the water inlet (i.e., the water intake) of the fire hose is far from the fire scene, the adjacent hoses are connected by the aforementioned hose joint. Therefore, when a hose joint is present, the aforementioned patent structure cannot successfully wind the hose, thus presenting a critical factor in actual use. Furthermore, fire hoses are typically stored in sufficient quantities in a fire truck's storage compartment equipped with a hose laying mechanism. Typical examples of such fire trucks include the invention patents CN103785125B (Hose Retrieving and Laying Fire Truck) and CN103751931B (Automatic Hose Laying Fire Truck) filed by the present applicant. Providing the hoses retrieved by the automatic hose retrieving device similar to those in CN103785125B to be orderly laid in the hose storage compartment using CN103751931B also has positive implications. Utility Model Content

[0005] The task of the utility model is to provide a fire hose automatic retracting device which helps to realize an ideal automatic retracting effect so as to avoid the firefighters' physical strength being wasted, is conducive to realizing the simplicity of the structure so as to be convenient to manufacture and realize economy, is beneficial to realizing the high efficiency of retracting the hose so as to save time and create conditions for rapid evacuation, and is conducive to realizing good adaptability to the passage of the hose joint so as to avoid interference from the hose joint during the retracting process.

[0006] The task of the present utility model is accomplished in this way: an automatic fire hose retracting device comprises a left wall panel and a right wall panel, the left and right wall panels are connected to each other with a spacing maintained between the opposing sides; a belt retracting mechanism, the belt retracting mechanism is arranged between the opposing sides of the left and right wall panels, and is characterized in that the belt retracting mechanism comprises a continuous hose pulling device for retracting the fire hose and a roller cage type belt pressing device for applying a force to the fire hose in the retraction process to abut against the continuous hose pulling device and at the same time for allowing the fire hose joint to pass through unobstructed, the continuous hose pulling device is arranged between the left and right wall panels, and the roller cage type belt pressing device is rotatably arranged between the opposing sides of the left and right wall panels at a position corresponding to the upper side of the continuous hose pulling device and is in contact with the continuous hose pulling device.

[0007] In a specific embodiment of the present invention, the upper middle and lower parts between the opposite sides of the left wall panel and the right wall panel are supported and connected by the upper support connecting roller of the wall panel, the middle support connecting roller of the wall panel and the lower support connecting roller of the wall panel respectively; the position of the continuous water hose pulling device between the left and right wall panels is located above the middle support connecting roller of the wall panel and the lower support connecting roller of the wall panel, and the position of the roller cage type belt pressing device between the left and right wall panels is located below the upper support connecting roller of the wall panel.

[0008] In another specific embodiment of the present invention, the water hose continuous pulling device includes a driving motor, a driving transmission wheel, a driven transmission wheel and a fire hose traction transmission belt, the driving motor is rotatably arranged on the driving motor shaft, and the left end of the driving motor shaft is supported on the left wall panel, and the right end of the driving motor shaft is supported on the right wall panel, and a power line introduction hole is opened at the center position of the driving motor shaft, and driving motor connecting columns are fixed at intervals at the left and right ends of the driving motor around the circumferential edge of the driving motor, the driving transmission wheel is sleeved outside the driving motor, and a driving transmission wheel cover is fixed at the position corresponding to the left end face and the right end face of the driving transmission wheel, and the driving transmission wheel cover is also fixed to the driving motor connecting column, the driving motor shaft passes through the driving motor shaft clearance hole opened in the central position of the driving transmission wheel cover, the driven transmission wheel corresponds to the front of the driving transmission wheel, and the driven transmission wheel The driving wheel is sleeved on the driven transmission wheel bearing seat, and the driven transmission wheel bearing seat is rotatably arranged on the driven transmission wheel shaft through the driven transmission wheel bearing seat supporting bearing, and a driven transmission wheel cover plate is fixed at the position corresponding to the left end face and the right end face of the driven transmission wheel, respectively. The left end of the driven transmission wheel shaft is supported on the left wall plate after passing through the driven transmission wheel cover plate located on the left end face of the driven transmission wheel, and the right end of the driven transmission wheel shaft is supported on the right wall plate after passing through the driven transmission wheel cover plate located on the right end face of the driven transmission wheel. One end of the fire hose traction transmission belt is sleeved on the active transmission wheel, and the other end is sleeved on the driven transmission wheel, wherein the active transmission wheel corresponds to the upper part of the supporting connecting roller in the middle of the wall panel, and the driven transmission wheel corresponds to the upper part of the supporting connecting roller below the wall panel; the roller cage type belt pressing device corresponding to the lower part of the supporting connecting roller above the wall panel contacts the fire hose traction transmission belt.

[0009] In another specific embodiment of the present invention, a left supporting hole of the drive motor shaft is provided on the left wall panel and at a position corresponding to the left end of the drive motor shaft, and a right supporting hole of the drive motor shaft is provided on the right wall panel and at a position corresponding to the right end of the drive motor shaft, and a pair of drive motor shaft milling planes corresponding to each other up and down are respectively formed at the left end and the right end of the drive motor shaft, the pair of drive motor shaft milling planes located at the left end of the drive motor shaft are non-rotatably supported on the left supporting hole of the drive motor shaft, and the pair of drive motor shaft milling planes located at the right end of the drive motor shaft are non-rotatably supported on the right supporting hole of the drive motor shaft; The drive motor shaft is provided with an outlet hole for leading out the power cord introduced into the power cord inlet hole and electrically connecting it to the stator coil of the drive motor. The active transmission wheel is sleeved on the drive motor, which means that an air gap is maintained between the inner wall of the active transmission wheel and the drive motor; a left support hole of a driven transmission wheel shaft is provided on the left wall panel at a position corresponding to the driven transmission wheel shaft, and a right support hole of a driven transmission wheel shaft is provided on the right wall panel at a position corresponding to the right end of the driven transmission wheel shaft. The left end of the driven transmission wheel shaft is supported on the left support hole of the driven transmission wheel shaft, and the right end of the driven transmission wheel shaft is supported on the right support hole of the driven transmission wheel shaft.

[0010] In another specific embodiment of the present invention, the driving motor is a stepping motor; the active transmission wheel and the driven transmission wheel are synchronous pulleys, and the fire hose traction transmission belt is a synchronous belt.

[0011] In another specific embodiment of the present invention, a driven transmission wheel axle clearance hole is provided at the central position of the driven transmission wheel cover plate, and the left end of the driven transmission wheel axle is supported on the left support hole of the driven transmission wheel axle after passing through the driven transmission wheel axle clearance hole at the central position of the driven transmission wheel cover plate fixed on the left end face of the driven transmission wheel, and the right end of the driven transmission wheel axle is supported on the right support hole of the driven transmission wheel axle after passing through the driven transmission wheel axle clearance hole at the central position of the driven transmission wheel cover plate fixed on the right end face of the driven transmission wheel.

[0012] In a more specific embodiment of the present invention, the roller cage type belt pressing device includes a roller cage left sealing plate, a roller cage right sealing plate, a group of water hose joint elastic yielding parts and a sealing plate rotation support shaft, the roller cage left sealing plate and the roller cage right sealing plate correspond to each other on the left and right, a group of water hose joint elastic yielding parts are fixed between the opposite sides of the roller cage left sealing plate and the roller cage right sealing plate at equal distances around the edge parts of the circumferential direction of the roller cage left sealing plate and the roller cage right sealing plate, the left end of the group of water hose joint elastic yielding parts extends to the left side of the roller cage left sealing plate and is pressed and fixed by the left end pressure plate of the water hose joint elastic yielding part between the right side surface of the left end pressure plate of the water hose joint elastic yielding part and the left side surface of the roller cage left sealing plate. The right end portion of the elastic yielding member of the group of water hose joints extends to the right side of the right sealing plate of the rolling cage and is pressed between the left side surface of the right end surface pressure plate of the water hose joints elastic yielding member and the right side surface of the right sealing plate of the rolling cage by the pressure plate at the right end portion of the water hose joints elastic yielding member. The middle portion of a group of elastic yielding member of the group of water hose joints is located between the opposite sides of the left and right sealing plates of the rolling cage and contacts the upper surface of the fire hose traction transmission belt. The left end of the sealing plate rotation support shaft passes through the left sealing plate of the rolling cage and extends to the left side of the left sealing plate of the rolling cage and is rotatably supported on the left wall panel. The middle portion is located between the left and right sealing plates of the rolling cage, and the right end of the sealing plate rotation support shaft passes through the right sealing plate of the rolling cage and extends to the right side of the right sealing plate of the rolling cage and is rotatably supported on the right wall panel.

[0013] In another specific embodiment of the present invention, a left supporting bearing seat of a sealing plate rotation support shaft is fixed on the left side of the left wall panel and at a position corresponding to the left end of the sealing plate rotation support shaft, and a right supporting bearing seat of a sealing plate rotation support shaft is fixed on the right side of the right wall panel and at a position corresponding to the right end of the sealing plate rotation support shaft. The left end of the sealing plate rotation support shaft is rotatably supported on the left supporting bearing seat of the sealing plate rotation support shaft, and the right end of the sealing plate rotation support shaft is rotatably supported on the right supporting bearing seat of the sealing plate rotation support shaft.

[0014] In another specific embodiment of the present invention, a left clearance hole of a sealing plate rotation support shaft is provided on the left wall panel and at a position corresponding to the left supporting bearing seat of the sealing plate rotation support shaft, and a right clearance hole of a sealing plate rotation support shaft is provided on the right wall panel and at a position corresponding to the right supporting bearing seat of the sealing plate rotation support shaft. The left end of the sealing plate rotation support shaft passes through the left clearance hole of the sealing plate rotation support shaft and is rotatably supported on the left supporting bearing seat of the sealing plate rotation support shaft, and the right end of the sealing plate rotation support shaft passes through the right clearance hole of the sealing plate rotation support shaft and is rotatably supported on the right supporting bearing seat of the sealing plate rotation support shaft.

[0015] In yet another specific embodiment of the present invention, in the set of elastic water hose joint clearance members, the distance between each two adjacent elastic water hose joint clearance members is adapted to the length of the water hose joint of the fire hose, and the set of elastic water hose joint clearance members are rubber belts, rubber plates, rubber band braided strips, elastic strips, silicone strips, NBR rubber strips, EPDM rubber strips, butyl rubber strips or springs.

[0016] The technical effects of the technical solution provided by the present invention are as follows: first, the fire hose can be automatically collected by the continuous hose pulling device of the take-up mechanism in cooperation with the roller cage type pressure device, thereby helping to achieve the ideal mechanical fire hose automatic take-up effect, thereby avoiding the continued waste of physical strength of firefighters and enabling firefighters to quickly eliminate fatigue caused by fire fighting and disaster relief; second, since it only consists of left and right wall panels and the take-up mechanism disposed between the left and right wall panels, the overall structure is very simple, which is both convenient to manufacture and economical; third, since the take-up is completed automatically, it is highly efficient and saves time, thereby buying time for firefighters to quickly evacuate the emergency area; fourth, since the roller cage type pressure device is adopted in the structural system of the take-up mechanism, the hose connector can pass through without obstruction, thereby achieving good adaptability to the hose and avoiding interference with the hose connector during the take-up process; fifth, when in use, it can be matched with a fire hose handling device to convey the fire hose to the handling device or a fire truck during the take-up process and orderly stack it in the hose storage compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of an application example of the present utility model. DETAILED DESCRIPTION

[0019] In order to more clearly understand the technical essence and beneficial effects of the present invention, a detailed description will be given below in the form of embodiments. However, the description of the embodiments does not limit the scheme of the present invention. Any equivalent transformation that is merely formal and not substantial based on the concept of the present invention should be regarded as within the scope of the technical solution of the present invention.

[0020] In the following description, all concepts related to directionality or orientation, such as up, down, left, right, front and back, are based on Figure 1 The position states shown are for reference only and therefore cannot be understood as a special limitation on the technical solution provided by the present invention.

[0021] See Figure 1, shows a left wall panel 1 and a right wall panel 2, the left and right wall panels 1, 2 are connected to each other with a distance between the opposite sides; shows a belt-taking mechanism 3, the belt-taking mechanism 3 is arranged between the opposite sides of the left and right wall panels 1, 2.

[0022] As the technical key points of the technical solution provided by the present invention: the aforementioned belt taking-up mechanism 3 includes a continuous hose pulling device 31 for retracting the fire hose and a roller cage type belt pressing device 32 for applying a force to the fire hose in the process of retraction so as to stick to the continuous hose pulling device 31 and at the same time for allowing the fire hose joint to pass through unobstructed. The continuous hose pulling device 31 is arranged between the aforementioned left and right wall panels 1 and 2, and the roller cage type belt pressing device 32 is rotatably arranged between the opposite sides of the aforementioned left and right wall panels 1 and 2 at a position corresponding to the upper part of the continuous hose pulling device 31 and is in contact with the continuous hose pulling device 31.

[0023] The upper middle and lower parts between the opposite sides of the aforementioned left wall panel 1 and the right wall panel 2 are supported and connected by the upper wall panel support connecting roller 4, the middle wall panel support connecting roller 5 and the lower wall panel support connecting roller 6 respectively; the aforementioned water hose continuous pulling device 31 is located between the aforementioned left and right wall panels 1 and 2 and is also located above the middle wall panel support connecting roller 5 and the lower wall panel support connecting roller 6, while the aforementioned roller cage type belt pressing device 32 is located between the aforementioned left and right wall panels 1 and 2 and is located below the upper wall panel support connecting roller 4.

[0024] Depend on Figure 1 As shown, a left wall panel fixing strip 16 is folded rightward at the bottom of the left wall panel 1, while a right wall panel fixing strip 26 is folded leftward at the bottom of the right wall panel 1. The left and right wall panel fixing strips 16 and 26 correspond to each other and have fixing holes spaced apart. When in use, the left and right wall panel fixing strips 16 and 26 are secured to the fire truck's belt management mechanism or other similar mechanism.

[0025] Depend on Figure 1As shown, a left axis head support hole 15a for the wall panel upper supporting connecting roller is provided above the left wall panel 1 and at a position corresponding to the left end of the aforementioned wall panel upper supporting connecting roller 4, a left axis head fixing screw 15b for the wall panel upper supporting connecting roller is provided on the left side of the left wall panel 1 and at a position corresponding to the left axis head support hole 15a of the wall panel upper supporting connecting roller, a right axis head support hole 15c for the wall panel upper supporting connecting roller is provided above the right wall panel 2 and at a position corresponding to the right end of the wall panel upper supporting connecting roller 4, and a right axis head fixing screw 15d for the wall panel upper supporting connecting roller is provided on the right side of the right wall panel 2 and at a position corresponding to the right axis head support hole 15c of the wall panel upper supporting connecting roller. The aforementioned left shaft head fixing screw 15b of the wall panel upper support connecting roller is screwed into the shaft head of the left end of the wall panel upper support connecting roller 4 through the left shaft head support hole 15a of the wall panel upper support connecting roller, thereby fixing the left end of the wall panel upper support connecting roller 4 to the left wall panel 1. Similarly, the aforementioned right shaft head fixing screw 15d of the wall panel upper support connecting roller is screwed into the shaft head of the right end of the wall panel upper support connecting roller 4 through the right shaft head support hole 15c of the wall panel upper support connecting roller, thereby fixing the right end of the wall panel upper support connecting roller 4 to the right wall panel 2. Since the manner in which the wall panel middle support connecting roller 5 and the wall panel lower support connecting roller 6 are fixedly connected between the opposing sides of the left and right wall panels 1 and 2 is exactly the same as the manner in which the aforementioned wall panel upper support connecting roller 4 is connected between the opposing sides of the left and right wall panels 1 and 2, the applicant will not elaborate on this further.

[0026] The applicant needs to explain that: since the shapes of the left and right wall panels 1 and 2 are both roughly triangular, the three supporting connecting rollers 4, 5, and 6 at the upper, middle, and lower parts of the aforementioned wall panels form a roughly triangular distribution position relationship, and the three together reliably support and connect the left and right wall panels 1 and 2 while maintaining the above-mentioned spacing.

[0027] See you next time Figure 1The aforementioned water hose continuous pulling device 31 includes a driving motor 311, a driving transmission wheel 312, a driven transmission wheel 313 and a fire hose pulling transmission belt 314. The driving motor 311 is rotatably arranged on a driving motor shaft 3111, and the left end of the driving motor shaft 3111 is non-rotatably supported on the aforementioned left wall panel 1, and the right end of the driving motor shaft 3111 is non-rotatably supported on the aforementioned right wall panel 2. A power line introduction hole 31111 is opened at the center position of the driving motor shaft 3111, and driving motor connecting columns 311 are fixed at intervals on the left and right ends of the driving motor 311 at the circumferential edge portions of the driving motor 311. 2. The active transmission wheel 312 is sleeved outside the drive motor 311. A active transmission wheel cover 3121 is fixed to the left and right end surfaces of the active transmission wheel 312 by means of active transmission wheel cover screws. The active transmission wheel cover 3121 is also fixed to the aforementioned drive motor connecting column 3112 by means of connecting column fixing screws 31213. The aforementioned drive motor shaft 3111 passes through the drive motor shaft clearance hole 31211 provided in the center of the active transmission wheel cover 3121. The driven transmission wheel 313 corresponds to the front of the active transmission wheel 312 and is sleeved on the driven transmission wheel bearing seat 3131. The driven transmission wheel bearing The seat 3131 is rotatably arranged on the driven transmission wheel shaft 3132 through the driven transmission wheel bearing seat support bearing 31311, and a driven transmission wheel cover plate 3133 is fixed to the position corresponding to the left end face and the right end face of the driven transmission wheel 313 through the driven transmission wheel cover plate fixing screws 31332, and the driven transmission wheel cover plate 3133 is also fixed to the end face of the driven transmission wheel bearing seat 3131 through the driven transmission wheel bearing seat fixing screws 31333, and the shaft head 31321 at the left end of the aforementioned driven transmission wheel shaft 3132 is non-rotatably supported on the aforementioned left wall panel 1 after passing through the driven transmission wheel cover plate 3133 located on the left end face of the driven transmission wheel 313, and the driven transmission wheel The shaft head 31321 at the right end of the driven wheel shaft 3132 is non-rotatably supported on the aforementioned right wall panel 2 after passing through the driven transmission wheel cover plate 3133 located on the right end face of the driven transmission wheel 313. One end of the fire hose traction transmission belt 314 is sleeved on the active transmission wheel 312, and the other end is sleeved on the driven transmission wheel 313, wherein the aforementioned active transmission wheel 312 roughly corresponds to the top of the aforementioned middle support connecting roller 5 of the aforementioned wall panel, and the aforementioned driven transmission wheel 313 roughly corresponds to the top of the aforementioned lower support connecting roller 6 of the aforementioned wall panel; the aforementioned roller cage type belt pressing device 32 roughly corresponding to the bottom of the aforementioned upper support connecting roller 4 of the aforementioned wall panel is in contact with the aforementioned fire hose traction transmission belt 314.

[0028] A left support hole 11 of the drive motor shaft is provided on the left wall panel 1 at a position corresponding to the left end of the drive motor shaft 3111, and a right support hole 21 of the drive motor shaft is provided on the right wall panel 2 at a position corresponding to the right end of the drive motor shaft 3111. A pair of drive motor shaft milling planes 31112 corresponding to each other are respectively formed at the left end and the right end of the drive motor shaft 3111. The pair of drive motor shaft milling planes 31112 located at the left end of the drive motor shaft 3111 are non-rotatably supported on the left support hole 11 of the drive motor shaft, and the pair of drive motor shaft milling planes 31112 located at the right end of the drive motor shaft 3111 are non-rotatably supported on the right support hole 21 of the drive motor shaft; There is a wire outlet hole for leading out the power wire introduced into the power wire inlet hole 31111 and electrically connecting it to the stator coil of the drive motor 311. The aforementioned active transmission wheel 312 is loosely mounted on the aforementioned drive motor 311, which means that an air gap 3122 is maintained between the inner wall of the active transmission wheel 312 and the drive motor 311; a driven transmission wheel shaft left support hole 12 is provided on the aforementioned left wall panel 1 and at a position corresponding to the aforementioned driven transmission wheel shaft 3132, and a driven transmission wheel shaft right support hole 22 is provided on the right wall panel 2 and at a position corresponding to the right end of the driven transmission wheel shaft 3132. The left end of the driven transmission wheel shaft 3132 is supported on the driven transmission wheel shaft left support hole 12, and the right end of the driven transmission wheel shaft 3132 is supported on the driven transmission wheel shaft right support hole 22.

[0029] In this embodiment, the aforementioned driving motor 311 is a stepping motor; the aforementioned active transmission wheel 312 and the driven transmission wheel 313 are synchronous pulleys; and the aforementioned fire hose traction transmission belt 314 is a synchronous belt.

[0030] Depend on Figure 1 As shown, a driven transmission wheel axle clearance hole 31331 is provided at the central position of the aforementioned driven transmission wheel cover plate 3133, and the left end of the aforementioned driven transmission wheel axle 3132 is supported on the aforementioned driven transmission wheel axle left support hole 12 after passing through the aforementioned driven transmission wheel axle clearance hole 31331 at the central position of the driven transmission wheel cover plate 3133 fixed on the left end surface of the aforementioned driven transmission wheel 313, while the right end of the driven transmission wheel axle 3132 is supported on the aforementioned driven transmission wheel axle right support hole 22 after passing through the aforementioned driven transmission wheel axle clearance hole 31331 at the central position of the driven transmission wheel cover plate 3133 fixed on the right end surface of the aforementioned driven transmission wheel 313.

[0031] See you next time Figure 1The aforementioned roller cage type belt pressing device 32 includes a roller cage left sealing plate 321, a roller cage right sealing plate 322, a group of water hose joint elastically giving way through parts 323 and a sealing plate rotation support shaft 324. The roller cage left sealing plate 321 and the roller cage right sealing plate 322 correspond to each other on the left and right. The number of a group of water hose joint elastically giving way through parts 323 is at least three (five in this embodiment). The group of water hose joint elastically giving way through parts 323 surrounds the roller cage left sealing plate 321 and the roller cage right sealing plate 322. The circumferential edge parts of the right sealing plate 322 of the cage are fixed between the opposite sides of the left sealing plate 321 of the rolling cage and the right sealing plate 322 of the rolling cage at equal distances from each other. The left end of the group of water hose joints elastically gives way through the member 323 and extends to the left side of the left sealing plate 321 of the rolling cage and is pressed and fixed by the left end pressure plate 325 of the water hose joint elastically gives way through the member The right end of the hose joint elastically gives way through the member 323 and extends to the right side of the right sealing plate 322 of the rolling cage and is pressed and fixed by the hose joint elastically giving way through the member 326 at the right end between the left side of the hose joint elastically giving way through the member 326 and the right side of the right sealing plate 322 of the rolling cage. The middle part of a group of hose joint elastically giving way through the member 323 is located between the opposite sides of the left and right sealing plates 321 and 322 of the rolling cage and And it contacts the upper surface of the aforementioned fire hose traction drive belt 314, the left end of the sealing plate rotation support shaft 324 passes through the left sealing plate 321 of the rolling cage and extends to the left side of the left sealing plate 321 of the rolling cage and is rotatably supported on the aforementioned left wall panel 1, the middle part is located between the left and right sealing plates 321 and 322 of the rolling cage, and the right end of the sealing plate rotation support shaft 324 passes through the right sealing plate 322 of the rolling cage and extends to the right side of the right sealing plate 322 of the rolling cage and is rotatably supported on the aforementioned right wall panel 2.

[0032] A left supporting bearing seat 13 of a sealing plate rotation support shaft is fixed on the left side of the aforementioned left wall panel 1 and at a position corresponding to the left end of the aforementioned sealing plate rotation support shaft 324, and a right supporting bearing seat 23 of a sealing plate rotation support shaft is fixed on the right side of the aforementioned right wall panel 2 and at a position corresponding to the right end of the aforementioned sealing plate rotation support shaft 324. The left end of the aforementioned sealing plate rotation support shaft 324 is rotatably supported on the left supporting bearing seat 13 of the sealing plate rotation support shaft, and the right end of the sealing plate rotation support shaft 324 is rotatably supported on the right supporting bearing seat 23 of the sealing plate rotation support shaft.

[0033] The applicant needs to explain that the aforementioned roller cage type belt pressing device 32 is only an example of an embodiment and is not limited to this structural form. For example, a device with a structural form such as a rim, spokes, wheel hub, hub and axle can also be used.

[0034] Depend on Figure 1As shown, a left end through hole 3231 of a water hose joint elastically giving way is provided at the edge of the circumferential direction of the aforementioned left sealing plate 321 of the rolling cage and at a position corresponding to the left end of the aforementioned water hose joint elastically giving way through piece 323, and a left end pressure plate fixing screw hole 3232 is provided at each end corresponding to the left end through hole 3231 of the water hose joint elastically giving way through piece. When the left end of the aforementioned water hose joint elastically giving way through piece 323 passes through the water hose from right to left, After the left end of the hose joint elastic yielding member passes through the hole 3231 and protrudes to the left end surface of the left cage sealing plate 321, the left fixing screw 32321 of the pressure plate is screwed into the pressure plate screw hole 3251, and the left end pressure plate 325 of the hose joint elastic yielding member reliably clamps the left end of the hose joint elastic yielding member 323 in a bent or deformed state between the right side surface of the left end pressure plate 325 of the hose joint elastic yielding member and the left side surface of the left cage sealing plate 321. Since the right end of the hose joint elastic yielding member 323 extends through the right cage sealing plate 322, that is, protrudes to the right side of the rolling cage sealing plate 322, and is reliably pressed by the right end pressure plate 326 of the hose joint elastic yielding member, the mechanism of the former, i.e., the mechanism of the hose joint elastic yielding member and the left end pressure plate 325, is exactly the same, and the applicant will not elaborate on it.

[0035] Depend on Figure 1 As shown, a left clearance hole 14 for a sealing plate rotation support shaft is provided on the aforementioned left wall panel 1 and at a position corresponding to the left supporting bearing seat 13 of the aforementioned sealing plate rotation support shaft, and a right clearance hole 24 for a sealing plate rotation support shaft is provided on the aforementioned right wall panel 2 and at a position corresponding to the right supporting bearing seat 23 of the aforementioned sealing plate rotation support shaft. The left end of the aforementioned sealing plate rotation support shaft 324 passes through the left clearance hole 14 of the sealing plate rotation support shaft and is rotatably supported on the left supporting bearing seat 13 of the aforementioned sealing plate rotation support shaft, and the right end of the sealing plate rotation support shaft 324 passes through the right clearance hole 24 of the sealing plate rotation support shaft and is rotatably supported on the right supporting bearing seat 23 of the aforementioned sealing plate rotation support shaft.

[0036] exist Figure 1 The figure shows a group of left support bearing seat fixing screws 131 for fixing the left support bearing seat 13 of the sealing plate rotating support shaft to the left wall panel 1, and also shows the left support bearing 132 of the sealing plate rotating support shaft located in the left support bearing seat 13 of the sealing plate rotating support shaft. Figure 1 A set of right support bearing seat fixing screws 231 for fixing the right support bearing seat 23 of the sealing plate rotating support shaft to the right wall panel 2 is shown, and the right support bearing 232 of the sealing plate rotating support shaft located in the right support bearing seat 23 of the sealing plate rotating support shaft is also shown.

[0037] In this embodiment, in the aforementioned set of hose joint elastically giving way through members 323, the distance between each two adjacent hose joint elastically giving way through members 323 is the same as that of the hose joint elastically giving way through members 323. Figure 2 The length of the water hose joint 71 of the fire hose 7 shown is adapted. In this embodiment, a set of water hose joint elastically gives way to the passing member 323 is a rubber belt, but it can also be a rubber plate, a rubber band braided strip, an elastic strip (elastic rope), a silicone strip, an NBR rubber strip, an EPDM rubber strip, a butyl rubber strip or a spring, etc., as long as it can meet the elastic requirements of the water hose joint 51.

[0038] See Figure 2 , the applicant combined Figure 1 Briefly describing the operation of the present invention, the starting end of the fire hose 7 is manually guided between the roller-cage belt-pressing device 32 and the fire hose traction drive belt 314, and then to the fire truck's automatic belt-straightening device or the fire truck, where it is neatly stacked in the belt storage compartment. Drive motor 311 then operates to retract (i.e., "recover") the fire hose 7. Specifically, the rotor of drive motor 311 drives active drive wheel 312, which in turn drives driven drive wheel 313 via fire hose traction drive belt 314. This allows the fire hose 7 to be retracted from front to back, while the fire hose traction drive belt 314 forms a repetitive conveying plane. When the hose joint 71 of the fire hose 7 passes through, the roller cage type belt pressing device 32 will press on the front (end) of the hose joint 71 of the fire hose 7 and move forward together. While moving, the next hose joint elastically gives way to the member 323 to contact the rear (end) of the hose joint 71. Under the push of the rotational force, the hose joint 71 is pushed backward, thereby ensuring that the fire hose joint 71 passes smoothly.

[0039] In summary, the technical solution provided by the present utility model makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. A fire hose automatic retracting device, comprising a left wall panel (1) and a right wall panel (2), wherein the left and right wall panels (1, 2) are connected to each other with a distance between their opposing sides; and a belt retracting mechanism (3), wherein the belt retracting mechanism (3) is arranged between the opposing sides of the left and right wall panels (1, 2), and wherein: The belt-retracting mechanism (3) comprises a continuous hose-drawing device (31) for retracting the fire hose and a roller-cage type belt-pressing device (32) for applying a force to the fire hose in the process of being retracted so as to abut against the continuous hose-drawing device (31) and at the same time for allowing the fire hose joint to pass through without obstruction. The continuous hose-drawing device (31) is arranged between the left and right wall panels (1, 2), and the roller-cage type belt-pressing device (32) is rotatably arranged between the opposite sides of the left and right wall panels (1, 2) at a position corresponding to the upper side of the continuous hose-drawing device (31) and is in contact with the continuous hose-drawing device (31).

2. The automatic fire hose retracting device according to claim 1, characterized in that: The upper middle and lower parts of the left wall panel (1) and the right wall panel (2) on the opposite sides are supported and connected by the upper wall panel support connecting roller (4), the middle wall panel support connecting roller (5) and the lower wall panel support connecting roller (6) respectively; the water hose continuous pulling device (31) is located between the left and right wall panels (1, 2) and is located above the middle wall panel support connecting roller (5) and the lower wall panel support connecting roller (6), while the roller cage type belt pressing device (32) is located between the left and right wall panels (1, 2) and is located below the upper wall panel support connecting roller (4).

3. The automatic fire hose retracting device according to claim 2, characterized in that: The water hose continuous pulling device (31) includes a driving motor (311), a driving transmission wheel (312), a driven transmission wheel (313) and a fire hose pulling transmission belt (314). The driving motor (311) is rotatably arranged on a driving motor shaft (3111), and the left end of the driving motor shaft (3111) is supported on the left wall panel (1), and the right end of the driving motor shaft (3111) is supported on the right wall panel (2). A power line introduction hole (31111) is opened at the center position of the driving motor shaft (3111), and a power line introduction hole (31111) is opened at the left end and the right end of the driving motor (311) around the circumferential edge of the driving motor (311). The driving motor connecting column (3112) is fixed at each position in a spaced state, the driving transmission wheel (312) is loosely sleeved outside the driving motor (311), and a driving transmission wheel cover (3121) is fixed at the position corresponding to the left end face and the right end face of the driving transmission wheel (312), and the driving transmission wheel cover (3121) is also fixed to the driving motor connecting column (3112), the driving motor shaft (3111) passes through the driving motor shaft clearance hole (31211) provided at the central position of the driving transmission wheel cover (3121), the driven transmission wheel (313) corresponds to the front of the driving transmission wheel (312), and the driven transmission wheel (313) is fixed to the front of the driving transmission wheel (312). The driving wheel (313) is sleeved on the driven driving wheel bearing seat (3131), and the driven driving wheel bearing seat (3131) is rotatably arranged on the driven driving wheel shaft (3132) through the driven driving wheel bearing seat support bearing (31311). A driven driving wheel cover plate (3133) is fixed at the position corresponding to the left end face and the right end face of the driven driving wheel (313). The left end of the driven driving wheel shaft (3132) is supported on the left wall panel (1) after passing through the driven driving wheel cover plate (3133) located on the left end face of the driven driving wheel (313), and the right end of the driven driving wheel shaft (3132) is supported on the left wall panel (1) after passing through the driven driving wheel cover plate (3133) located on the left end face of the driven driving wheel (313). The driven transmission wheel cover plate (3133) on the right end face of the driven transmission wheel (313) is supported on the right wall panel (2) at the rear, and one end of the fire hose traction transmission belt (314) is sleeved on the active transmission wheel (312), and the other end is sleeved on the driven transmission wheel (313), wherein the active transmission wheel (312) corresponds to the upper part of the support connecting roller (5) in the middle part of the wall panel, and the driven transmission wheel (313) corresponds to the upper part of the support connecting roller (6) below the wall panel; the roller cage type belt pressing device (32) corresponding to the lower part of the support connecting roller (4) above the wall panel contacts the fire hose traction transmission belt (314).

4. The automatic fire hose retracting device according to claim 3, characterized in that: A left support hole (11) for the drive motor shaft is provided on the left wall panel (1) at a position corresponding to the left end of the drive motor shaft (3111), and a right support hole (21) for the drive motor shaft is provided on the right wall panel (2) at a position corresponding to the right end of the drive motor shaft (3111). A pair of drive motor shaft milling planes (31112) corresponding to each other are formed at the left end and the right end of the drive motor shaft (3111). The pair of drive motor shaft milling planes (31112) located at the left end of the drive motor shaft (3111) are non-rotatably supported on the left support hole (11) for the drive motor shaft, and the pair of drive motor shaft milling planes (31112) located at the right end of the drive motor shaft (3111) are non-rotatably supported on the right support hole (21) for the drive motor shaft; a useful support hole (21) is provided on the drive motor shaft (3111). The invention relates to a wire outlet hole for leading out a power wire introduced into the power wire introduction hole (31111) and electrically connecting the power wire to the stator coil of the drive motor (311). The active transmission wheel (312) is loosely mounted on the drive motor (311), which means that an air gap (3122) is maintained between the inner wall of the active transmission wheel (312) and the drive motor (311). A driven transmission wheel shaft left support hole (12) is provided on the left wall panel (1) at a position corresponding to the driven transmission wheel shaft (3132), and a driven transmission wheel shaft right support hole (22) is provided on the right wall panel (2) at a position corresponding to the right end of the driven transmission wheel shaft (3132). The left end of the driven transmission wheel shaft (3132) is supported on the driven transmission wheel shaft left support hole (12), while the right end of the driven transmission wheel shaft (3132) is supported on the driven transmission wheel shaft right support hole (22).

5. The automatic fire hose retracting device according to claim 3 or 4, characterized in that: The driving motor (311) is a stepping motor; the active transmission wheel (312) and the driven transmission wheel (313) are synchronous pulleys; and the fire hose traction transmission belt (314) is a synchronous belt.

6. The automatic fire hose retracting device according to claim 4, characterized in that: A driven transmission wheel axle clearance hole (31331) is provided at the central position of the driven transmission wheel cover plate (3133); the left end of the driven transmission wheel axle (3132) is supported on the driven transmission wheel axle left support hole (12) after passing through the driven transmission wheel axle clearance hole (31331) at the central position of the driven transmission wheel cover plate (3133) fixed on the left end face of the driven transmission wheel (313); and the right end of the driven transmission wheel axle (3132) is supported on the driven transmission wheel axle right support hole (22) after passing through the driven transmission wheel axle clearance hole (31331) at the central position of the driven transmission wheel cover plate (3133) fixed on the right end face of the driven transmission wheel (313).

7. The automatic fire hose retracting device according to claim 3, characterized in that: The roller cage type belt pressing device (32) comprises a roller cage left sealing plate (321), a roller cage right sealing plate (322), a group of water hose joint elastically giving way through parts (323) and a sealing plate rotation support shaft (324), the roller cage left sealing plate (321) and the roller cage right sealing plate (322) correspond to each other on the left and right, and a group of water hose joint elastically giving way through parts (323) are equidistant from each other around the circumferential edge parts of the roller cage left sealing plate (321) and the roller cage right sealing plate (322). The spaced state is fixed between the opposite sides of the left sealing plate (321) and the right sealing plate (322) of the rolling cage, and the left end of the group of water hose joints elastically giving way through the member (323) extends to the left side of the left sealing plate (321) of the rolling cage and is pressed and fixed between the right side of the left end pressure plate (325) of the water hose joint elastically giving way through the member and the left side of the left sealing plate (321) of the rolling cage by the left end pressure plate (325) of the water hose joint elastically giving way, and the group of water hose joints elastically giving way through the member The right end of the through piece (323) extends to the right side of the right sealing plate (322) of the rolling cage and is pressed and fixed by the right end pressure plate (326) of the water hose joint elastically giving way through piece between the left side of the right end pressure plate (326) of the water hose joint elastically giving way through piece and the right side of the right sealing plate (322) of the rolling cage. The middle part of a group of water hose joint elastically giving way through pieces (323) is located between the opposite sides of the left and right sealing plates (321, 322) of the rolling cage and is connected to the fire hose traction transmission The left end of the sealing plate rotation support shaft (324) passes through the left sealing plate (321) of the rolling cage and extends to the left side of the left sealing plate (321) of the rolling cage and is rotationally supported on the left wall panel (1). The middle part is located between the left and right sealing plates (321, 322) of the rolling cage, and the right end of the sealing plate rotation support shaft (324) passes through the right sealing plate (322) of the rolling cage and extends to the right side of the right sealing plate (322) of the rolling cage and is rotationally supported on the right wall panel (2).

8. The automatic fire hose retracting device according to claim 7, characterized in that: A left bearing seat (13) of a sealing plate rotation support shaft is fixed on the left side of the left wall panel (1) and at a position corresponding to the left end of the sealing plate rotation support shaft (324), and a right bearing seat (23) of a sealing plate rotation support shaft is fixed on the right side of the right wall panel (2) and at a position corresponding to the right end of the sealing plate rotation support shaft (324). The left end of the sealing plate rotation support shaft (324) is rotationally supported on the left bearing seat (13) of the sealing plate rotation support shaft, and the right end of the sealing plate rotation support shaft (324) is rotationally supported on the right bearing seat (23) of the sealing plate rotation support shaft.

9. The automatic fire hose retracting device according to claim 8, characterized in that: A left clearance hole (14) for a sealing plate rotating support shaft is provided on the left wall panel (1) and at a position corresponding to the left supporting bearing seat (13) of the sealing plate rotating support shaft, and a right clearance hole (24) for a sealing plate rotating support shaft is provided on the right wall panel (2) and at a position corresponding to the right supporting bearing seat (23) of the sealing plate rotating support shaft. The left end of the sealing plate rotating support shaft (324) passes through the left clearance hole (14) for the sealing plate rotating support shaft and is rotatably supported on the left supporting bearing seat (13) of the sealing plate rotating support shaft, while the right end of the sealing plate rotating support shaft (324) passes through the right clearance hole (24) for the sealing plate rotating support shaft and is rotatably supported on the right supporting bearing seat (23) of the sealing plate rotating support shaft.

10. The automatic fire hose retracting device according to claim 8, characterized in that: In the set of water hose joint elastically-dispensing passing members (323), the distance between each two adjacent water hose joint elastically-dispensing passing members (323) is adapted to the length of the water hose joint of the fire hose, and the set of water hose joint elastically-dispensing passing members (323) is a rubber belt, a rubber plate, a rubber band braided strip, an elastic strip, a silicone strip, an NBR rubber strip, an EPDM rubber strip, a butyl rubber strip or a spring.

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