Fire hose reel

Abstract

The utility model provides a fire hose reel which comprises a bearing plate supported on the ground through walking wheels, a supporting frame fixedly connected to the top of the bearing plate through bolts and a hollow cylinder rotationally connected to the inner side of the supporting frame, and the outer side of the hollow cylinder is slidably connected with a plurality of arc-shaped plates arranged in the radial direction through sliding rods. The two ends of the hollow cylinder are fixedly connected with disc faces used for limiting the fire hose, the inner side of the hollow cylinder is provided with a reinforcement assembly used for driving the arc-shaped plate to horizontally move, one side of the top of the bearing plate is fixedly connected with a push rod through a bolt, the top of the push rod is provided with an anti-skid sleeve, and the bottom of the bearing plate is rotationally connected with a plurality of walking wheels. By arranging the movable arc-shaped plates, the radius of the outer ring of each arc-shaped plate can be changed, so that the tensile force of the fire hose is reduced, the situation that the fire hose is prone to fatigue failure due to the fact that the tensile force always exists in the storage process of the fire hose can be effectively avoided, and the service life of the fire hose is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a fire fighting hose reel. Background Art

[0002] Energy storage power stations usually contain a large number of batteries and electronic devices, which may malfunction or short-circuit during operation, leading to fires. Therefore, fire drills are required regularly to enable quick and effective disposal and rescue in the event of a fire or other emergency. Fire hoses are a common firefighting equipment used to provide water sources for firefighting, especially when fire extinguishers and sprinkler systems cannot meet the requirements. When not in use, fire hoses are wound up in a specific manner using a winding device so that they can be quickly unfolded and used in fire accidents. The winding quality and storage environment directly affect the use effect and life of the hose.

[0003] After searching, the Chinese patent publication number CN207785723U discloses a fire hose reel, including a bracket, a rotating shaft rotatably connected to the bracket, two disc surfaces fixedly connected to the rotating shaft, a hose arranged on the rotating shaft, and a hose connector connected to the hose, wherein the end of the bracket away from the rotating shaft is rotatably connected with a first rotating roller and a second rotating roller, the first rotating roller is located at the upper end of the second rotating roller, the hose passes between the first rotating roller and the second rotating roller, a waist-shaped hole is provided at the position where the bracket is connected to the second rotating roller, and a lifting device is provided at the lower end of the bracket, and the lifting device drives the second rotating roller to move vertically.

[0004] The above patent has the following deficiencies: the device is provided with a first rotating roller and a second rotating roller, and the fire hose is retracted and released by passing through the two rollers, so that the squeezing of the two rollers can be utilized to squeeze out the remaining water in the tube when the fire hose is reeled in, but the fire hose will have a certain tension when it is reeled in, so that during the storage process, the fire hose is prone to fatigue failure due to the constant presence of tension.

[0005] To this end, a fire hose reel is proposed. Utility Model Content

[0006] In view of this, the embodiments of the present utility model hope to provide a fire hose reel to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the embodiment of the utility model is achieved as follows: a fire hose reel, including a bearing plate, a support frame fixedly connected to the top of the bearing plate by bolts, and a hollow cylinder rotatably connected to the inner side of the support frame, the outer side of the hollow cylinder is slidably connected with a plurality of radially arranged arc plates by sliding rods, both ends of the hollow cylinder are fixedly connected with disk surfaces for limiting the fire hose, and a force-enhancing component for driving the arc plates to move horizontally is arranged on the inner side of the hollow cylinder.

[0008] In some embodiments, a push rod is fixedly connected to one side of the top of the supporting plate by bolts, an anti-slip sleeve is provided on the top of the push rod, and a plurality of walking wheels are rotatably connected to the bottom of the supporting plate.

[0009] In some embodiments, the force amplification component includes a first limiting column, a connecting rod and a second limiting column.

[0010] In some embodiments, a clearance groove is formed on the inner wall of the hollow cylinder, the connecting rod is rotatably connected to the side wall of the clearance groove through a fixed shaft, and strip grooves are formed on both ends of the connecting rod.

[0011] In some embodiments, one of the strip grooves is movably connected to the inner wall of the arc plate through a second limiting column, and the other strip groove is movably connected to an electromagnet B through a first limiting column. The electromagnet B is slidably connected to the circumferential outer wall of the transmission shaft, and the inner wall of the hollow cylinder is fixedly connected to an electromagnet A, and the magnetic poles on the opposite side of the electromagnet A and the electromagnet B are the same.

[0012] In some embodiments, the force-increasing assembly further includes a motor, which is fixedly connected to the side wall of the support frame by bolts, and the output shaft of the motor is fixedly connected to the transmission shaft by a coupling.

[0013] In some embodiments, the electromagnet A and the electromagnet B are connected in series in the power supply circuit of the motor.

[0014] In some embodiments, the end of the sliding rod located inside the hollow cylinder and the outer wall located outside the hollow cylinder are both fixedly connected to the limiting plate.

[0015] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0016] 1. A fire hose reel is provided with a plurality of movable arc plates. When a hollow cylinder is rotated, the fire hose is wound around the outer wall of the arc plates layer by layer. After the fire hose is wound, a force-increasing component is used to drive the arc plates to move inward relative to the hollow cylinder, thereby changing the outer radius of the arc plates, so that the tensioning force of the fire hose is reduced, thereby effectively avoiding fatigue failure of the fire hose due to the constant tensioning force during the storage of the fire hose, and increasing the service life of the fire hose.

[0017] 2. A fire hose reel, by setting a limit column 1, a connecting rod and a limit column 2, since the center distance between the fixed axis and the limit column 2 is smaller than the center distance between the fixed axis and the limit column 1, the input force of the connecting rod will be smaller than its output force, so that the electromagnet B can use a smaller thrust to push the arc plate outward, saving energy.

[0018] 3. A fire hose reel is provided with two electromagnets A and B having the same magnetic poles. After the motor is started, the electromagnets A and B are energized, and the electromagnet B slides in the opposite direction of the electromagnet A due to the repulsive force of the electromagnet A, thereby pushing the connecting rod to drive the arc plate to extend outward, saving the layout of the power source and improving the utilization rate of resources.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the hollow cylinder of the utility model;

[0023] Figure 3 It is an enlarged schematic diagram of the structure at point A of the present utility model.

[0024] Reference numerals:

[0025] 1. Load-bearing plate; 2. Support frame; 3. Arc plate; 4. Hollow cylinder; 5. Disc; 6. Anti-slip sleeve; 7. Push rod; 8. Travel wheel; 9. Transmission shaft; 10. Motor; 11. Slide rod; 12. Limit plate; 13. Electromagnet A; 14. Electromagnet B; 15. Limit column 1; 16. Connecting rod; 17. Fixed shaft; 18. Strip groove; 19. Limit column 2; 20. Give way groove. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] like Figure 1-3 As shown, a fire hose reel comprises a bearing plate 1, a support frame 2 fixedly connected to the top of the bearing plate 1 by bolts, and a hollow cylinder 4 rotatably connected to the inner side of the support frame 2.

[0031] The outer side of the hollow cylinder 4 is slidably connected to a plurality of radially arranged arc plates 3 via a slide rod 11, both ends of the hollow cylinder 4 are fixedly connected to disk surfaces 5 for limiting the fire hose, and a force-enhancing component for driving the arc plates 3 to move horizontally is arranged inside the hollow cylinder 4.

[0032] When the fire hose needs to be rolled up, the hollow cylinder 4 is rotated to wrap the fire hose layer by layer around the outer wall of the arc plate 3. The wrapped fire hose is under tension. At this time, the force-enhancing component is used to drive the arc plate 3 to descend, thereby changing the outer radius of the arc plate 3.

[0033] By setting a plurality of movable curved plates 3, when the hollow cylinder 4 is rotated, the fire hose is wound around the outer wall of the curved plate 3 layer by layer. After the fire hose is wound, the force-increasing component is used to drive the curved plate 3 to move inward relative to the hollow cylinder 4, so that the outer circle radius of the curved plate 3 can be changed, so that the tensioning force of the fire hose is reduced, thereby effectively avoiding fatigue failure of the fire hose due to the constant existence of tensioning force during the storage of the fire hose, thereby increasing the service life of the fire hose.

[0034] In this embodiment, a push rod 7 is fixedly connected to one side of the top of the bearing plate 1 by bolts, an anti-slip sleeve 6 is provided on the top of the push rod 7, and a plurality of walking wheels 8 are rotatably connected to the bottom of the bearing plate 1.

[0035] The push rod 7 and the running wheel 8 can be used to quickly and conveniently transport the fire hose to the fire scene for rapid rescue. The anti-skid sleeve 6 effectively prevents the push rod 7 from slipping, thereby increasing the safety and stability of the device.

[0036] In this embodiment, the force-increasing assembly includes a limiting column 15, a connecting rod 16 and a limiting column 2 19. A clearance groove 20 is provided on the inner wall of the hollow cylinder 4, and the connecting rod 16 is rotatably connected to the side wall of the clearance groove 20 through a fixed shaft 17, and strip grooves 18 are provided at both ends of the connecting rod 16, one of the strip grooves 18 is movably connected to the inner wall of the arc plate 3 through the limiting column 2 19, and the other strip groove 18 is movably connected to an electromagnet B14 through the limiting column 15, and the electromagnet B14 is slidably connected to the outer wall of the circumference of the transmission shaft 9, and the inner wall of the hollow cylinder 4 is fixedly connected to the electromagnet A13, and the magnetic poles of the opposite side of the electromagnet A13 and the electromagnet B14 are the same.

[0037] The center distance between the fixed shaft 17 and the limiting column 19 is smaller than the center distance between the fixed shaft 17 and the limiting column 1 15 .

[0038] The force-increasing assembly also includes a motor 10, which is fixedly connected to the side wall of the support frame 2 by bolts, and the output shaft of the motor 10 is fixedly connected to the transmission shaft 9 by a coupling, and the electromagnet A13 and the electromagnet B14 are connected in series in the power supply circuit of the motor 10.

[0039] After starting the motor 10, since the magnetic poles of the electromagnet A13 and the electromagnet B14 on the opposite side are the same, the electromagnet A13 and the electromagnet B14 repel each other, and the electromagnet B14 slides in the opposite direction of the electromagnet A13, thereby pushing the connecting rod 16 to drive the arc plate 3 to extend to the outside of the hollow cylinder 4, so that the outer radius of the arc plate 3 increases. At the same time, the transmission shaft 9, driven by the motor 10, drives the hollow cylinder 4 and the arc plate 3 to rotate to reel the fire hose. After the reeling is completed, the motor 10 is turned off, the magnetic force of the electromagnet A13 and the electromagnet B14 disappears, and under the squeezing of the fire hose, the arc plate 3 pushes the slide bar 11 to slide to the inside of the hollow cylinder 4, so that the outer radius of the arc plate 3 decreases; since the center distance between the fixed shaft 17 and the limit column 2 19 is smaller than the center distance between the fixed shaft 17 and the limit column 1 15, the input force of the connecting rod 16 is smaller than its output force.

[0040] By setting the limit column 15, the connecting rod 16 and the limit column 2 19, since the center distance between the fixed shaft 17 and the limit column 2 19 is smaller than the center distance between the fixed shaft 17 and the limit column 15, the input force of the connecting rod 16 will be smaller than its output force, so that the electromagnet B14 can use a smaller thrust to push the arc plate 3 outward, saving energy. By setting two electromagnets A13 and B14 with the same magnetic poles, after the motor 10 is started, the electromagnet A13 and the electromagnet B14 are energized, and the electromagnet B14 slides in the opposite direction of the electromagnet A13 due to the repulsive force of the electromagnet A13, so that the connecting rod 16 can be pushed to drive the arc plate 3 to extend outward, saving the layout of the power source and improving the utilization rate of resources.

[0041] In this embodiment: when the fire hose is used up, the motor 10 is started, and at this time, the electromagnet A13 and the electromagnet B14 are energized, and the electromagnet B14 slides to one side of the principle electromagnet A13 due to the repulsive force of the electromagnet A13, thereby utilizing the cooperation of the limit column 15, the connecting rod 16 and the limit column 2 19 to drive the arc plate 3 to extend toward the outer wall of the hollow cylinder 4 until the outer circle radius of the arc plate 3 reaches the maximum value. At the same time, the transmission shaft 9 drives the arc plate 3 and the hollow cylinder 4 to rotate under the drive of the motor 10, so that the fire hose is wrapped around the outer wall of the arc plate 3 layer by layer. When the winding is completed, the motor 10 is turned off, and the electromagnet A13 and the electromagnet B14 are no longer energized, and the magnetic force disappears. Therefore, under the gravity and extrusion of the fire hose, the slide rod 11 drives the arc plate 3 to slide toward the inside of the hollow cylinder 4, thereby reducing the outer circle radius of the arc plate 3 and reducing the tension of the fire hose.

[0042] Embodiment 2:

[0043] A fire hose reel, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 2 As shown:

[0044] The end of the sliding rod 11 located inside the hollow cylinder 4 and the outer wall located outside the hollow cylinder 4 are both fixedly connected to the limiting plate 12 .

[0045] In this embodiment: when the arc plate 3 extends outward until the limit plate 12 located on the inner side of the hollow cylinder 4 contacts the inner wall of the hollow cylinder 4, the limit plate 12 limits the arc plate 3, making it impossible for the arc plate 3 to continue to extend outward; when the arc plate 3 is retracted inward until the limit plate 12 located on the outer side of the hollow cylinder 4 contacts the outer wall of the hollow cylinder 4, the limit plate 12 limits the arc plate 3, making it impossible for the arc plate 3 to continue to be retracted inward.

[0046] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fire hose reel, comprising a bearing plate (1), a support frame (2) fixedly connected to the top of the bearing plate (1) by bolts, and a hollow cylinder (4) rotatably connected to the inner side of the support frame (2), characterized in that: The outer side of the hollow cylinder (4) is slidably connected to a plurality of radially arranged arc plates (3) via a sliding rod (11), both ends of the hollow cylinder (4) are fixedly connected to disk surfaces (5) for limiting the position of the fire hose, and a force-increasing component for driving the arc plates (3) to move horizontally is arranged on the inner side of the hollow cylinder (4).

2. A fire hose reel according to claim 1, characterized in that: A push rod (7) is fixedly connected to one side of the top of the bearing plate (1) by means of bolts, an anti-slip sleeve (6) is arranged on the top of the push rod (7), and a plurality of running wheels (8) are rotatably connected to the bottom of the bearing plate (1).

3. A fire hose reel according to claim 1, characterized in that: The force-increasing assembly comprises a first limiting column (15), a connecting rod (16) and a second limiting column (19).

4. A fire hose reel according to claim 3, characterized in that: The inner wall of the hollow cylinder (4) is provided with a clearance groove (20), the connecting rod (16) is rotatably connected to the side wall of the clearance groove (20) via a fixed shaft (17), and strip grooves (18) are provided at both ends of the connecting rod (16).

5. A fire hose reel according to claim 4, characterized in that: One of the strip grooves (18) is movably connected to the inner wall of the arc plate (3) through a second limiting column (19), and the other strip groove (18) is movably connected to an electromagnet B (14) through a first limiting column (15). The electromagnet B (14) is slidably connected to the outer wall of the circumference of the transmission shaft (9), and the inner wall of the hollow cylinder (4) is fixedly connected to the electromagnet A (13), and the magnetic poles on the opposite side of the electromagnet A (13) and the electromagnet B (14) are the same.

6. A fire hose reel according to claim 4, characterized in that: The force-increasing assembly further comprises a motor (10), the motor (10) being fixedly connected to the side wall of the support frame (2) via bolts, and the output shaft of the motor (10) being fixedly connected to the transmission shaft (9) via a coupling.

7. A fire hose reel according to claim 5, characterized in that: The electromagnet A (13) and the electromagnet B (14) are connected in series in the power supply circuit of the motor (10).

8. A fire hose reel according to claim 1, characterized in that: The end of the sliding rod (11) located inside the hollow cylinder (4) and the outer wall located outside the hollow cylinder (4) are both fixedly connected to the limiting plate (12).

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