Fire hose winding device

Abstract

The invention discloses a fire hose winding device which comprises a vehicle body, a winding shaft used for winding a hose is rotationally connected into the vehicle body, a sliding base reciprocating in the horizontal direction is slidably connected into the vehicle body, the sliding base is rotationally connected with a pre-extrusion wheel, the sliding base is slidably connected with a sliding block, and the sliding block is rotationally connected with a movable wheel. The water hose is located between the movable wheel and the pre-extrusion wheel, when the sliding base moves in the direction away from the winding shaft, the movable wheel and the pre-extrusion wheel are matched to achieve water extrusion on the water hose, when the sliding base moves in the direction close to the winding shaft, the movable wheel moves in the direction away from the pre-extrusion wheel, and a gap is formed between the movable wheel and the water hose. According to the device, when a water hose is wound, water in the water hose can be squeezed out, meanwhile, when the water hose is bent, the water hose can be straightened, and therefore the winding work of the fire hose is better achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fire hoses, and in particular to a fire hose reeling device. Background Art

[0002] Fire hose is a hose used to deliver water at the fire scene. According to the material, it can be divided into lined fire hose and unlined fire hose. Among them, unlined fire hose has low pressure resistance, large resistance, easy to leak, easy to mold and rot, and short life. It is suitable for laying in the fire scene in the building; lined hose is resistant to high pressure, wear and mildew, durable, not easy to leak, small resistance, can be bent and folded at will, and can be moved at will. It is easy to use and is suitable for laying in the external fire scene and connecting to the fire truck.

[0003] The patent with the announcement number CN 218010763 U discloses a fire hose reeling auxiliary device, which includes a frame, a main reeling rod and a secondary reeling rod. The main reeling rod passes through the frame and is rotatably connected to the frame. The secondary reeling rod is arranged on the main reeling rod, and a space for the fire hose to pass through is reserved between the secondary reeling rod and the main reeling rod. However, it still has the following problems: when the hose is reeled, it cannot move along the hose, which easily causes the hose to be dragged and wear; the hose cannot be squeezed in advance, which easily generates greater resistance when reeling. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, a fire hose reeling device is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: The present invention proposes a fire hose winding device, comprising a vehicle body, a winding shaft for winding the water hose is rotatably connected in the vehicle body, a sliding seat that reciprocates in a horizontal direction is slidably connected in the vehicle body, the sliding seat is rotatably connected to a pre-extrusion wheel, the sliding seat is slidably connected to a slider, and the slider is rotatably connected to a movable wheel; the water hose is located between the movable wheel and the pre-extrusion wheel, when the sliding seat moves in a direction away from the winding shaft, the movable wheel and the pre-extrusion wheel cooperate to squeeze water from the water hose, when the sliding seat moves in a direction close to the winding shaft, the movable wheel moves in a direction away from the pre-extrusion wheel, and a gap is formed between the movable wheel and the water hose.

[0006] Preferably, the vehicle body is provided with a rotary groove, the slider is connected with a sliding shaft, the sliding shaft is slidably arranged in the rotary groove, and the slider is connected to the sliding seat via a compression spring.

[0007] Preferably, the revolving groove comprises an upper revolving groove and a lower revolving groove which are connected end to end. When the sliding shaft slides in the upper revolving groove, a gap is formed between the movable wheel and the water hose. When the sliding shaft slides in the lower revolving groove, the movable wheel and the pre-extrusion wheel cooperate to squeeze water from the water hose.

[0008] Preferably, the vehicle body is rotatably connected with a cylindrical cam, the cylindrical cam is provided with a chute, the sliding seat is connected with a movable shaft, the movable shaft is slidably arranged in the chute, and the sliding seat is connected with the vehicle body through a tension spring.

[0009] Preferably, the chute includes an inclined chute and a horizontal chute that are connected end to end. When the movable shaft slides in the inclined chute, the sliding seat moves away from the winding shaft. When the movable shaft slides in the horizontal chute, the tension spring drives the sliding seat to move towards the winding shaft.

[0010] Preferably, the vehicle body is slidably connected with a bracket that moves in the horizontal direction, the bracket is slidably connected with a rack that moves in the vertical direction, and the upper end of the rack is rotatably connected with a pulley for supporting the water hose.

[0011] Preferably, the vehicle body is fixedly connected with a small motor, the small motor includes a rotating shaft, the cylindrical cam is fixedly connected with the rotating shaft, and a gear is fixedly sleeved on the rotating shaft. The gear can be meshed with the rack to drive the rack to rise.

[0012] Preferably, the vehicle body is further connected with a magnet that has an attracting effect on the bracket. The bracket is connected with the vehicle body through a return spring. When the magnet is energized, it can attract the bracket to move, so that the gear and the rack are meshed.

[0013] Preferably, the vehicle body is connected with a large motor for controlling the rotation of the winding shaft. The bracket is connected with a sliding rheostat. The sliding rheostat is connected with the circuit of the large motor. The sliding rheostat includes a sliding piece, and the sliding piece is fixedly connected with the rack. When the rack rises, the sliding piece moves along the sliding rheostat, so that the loop current of the large motor increases and the rotation speed of the large motor becomes faster.

[0014] Preferably, guide plates are arranged on both sides of the water hose. The guide plates are slidably connected with the vehicle body. The guide plates are connected with the vehicle body through springs. The vehicle body is further connected with a switch for controlling the operation of the electromagnet. The switch is arranged on one side of the guide plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention is provided with a sliding seat. When the sliding seat moves away from the winding shaft, the pre-squeezing wheel and the movable wheel cooperate to realize pre-squeezing the water hose. When the sliding seat moves towards the winding shaft, the movable wheel moves away from the pre-squeezing wheel. At this time, the movable wheel does not contact the water hose. By pre-squeezing the water hose, the weight of the water hose can be reduced, the efficiency of subsequent further squeezing water can be improved, and thus the overall winding efficiency can be effectively improved.

[0016] 2. The present invention is provided with pulleys. When the water hose is bent, the water hose drives the guide plate to move. The guide plate makes the switch work, and the switch energizes the electromagnet. The electromagnet drives the bracket to move, enabling the rack and gear to cooperate. At this time, the small motor can drive the pulley to move upward, so that the water hose can be further stretched. When the rack moves, it drives the sliding piece of the sliding rheostat to move, and the resistance value of the sliding rheostat decreases, which can increase the current of the large motor, thereby increasing the rotation speed of the winding shaft, so as to better stretch the water hose and reduce the impact of the water hose bending on winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein: Figure 1 is the overall three-dimensional view of the present invention; Figure 2 is the overall front view of the present invention; Figure 3 is the overall cross-sectional view of the present invention; Figure 4 is Figure 3 the partial structural cross-sectional view of part A-A in Figure 5 is Figure 3 the partial structural schematic diagram of the guide plate in

[0018] Description of the reference numerals: 1 vehicle body; 2 winding wheel; 3 large motor; 4 traveling wheel; 5 guide plate; 6 winding shaft; 7 water hose; 8 water squeezing wheel; 9 pre-water squeezing wheel; 10 movable wheel; 11 compression spring; 12 tension spring; 13 rotary groove; 14 sliding seat; 15 small motor; 16 cylindrical cam; 17 sliding groove; 18 gear; 19 rack; 20 pulley; 21 switch; 22 spring; 23 rotating shaft; 24 bracket; 25 electromagnet; 26 return spring; 27 slide rail; 28 sliding rheostat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. Embodiment

[0020] As Figures 1 - 3As shown in the figure, this embodiment proposes a fire hose winding device, which includes a vehicle body 1. A winding shaft 6 for winding the hose 7 is rotatably connected inside the vehicle body 1. A winding wheel 2 is also fixedly sleeved on the winding shaft 6. On the one hand, the winding wheel 2 facilitates the taking of the wound winding shaft 6, and on the other hand, the winding wheel 2 can limit the hose. Two winding wheels 2 can be provided. After the hose 7 is wound, it is located between the two winding wheels 2, which can better realize the limitation and guidance of the hose 7.

[0021] A number of traveling wheels are rotatably connected to the vehicle body 1, which facilitates the movement of the vehicle body 1. The vehicle body 1 is fixedly connected with a large motor 3. The large motor 3 includes an output shaft, and the output shaft can be a spline shaft. The winding shaft 6 is slidably sleeved on the output shaft. One end of the output shaft can be threadedly connected with a nut. After the winding shaft 6 is sleeved on the output shaft, by tightening the nut, the fixation of the winding shaft 6 can be realized. At the same time, when the large motor 3 drives the output shaft to rotate, it can drive the winding shaft 6 to rotate simultaneously, which is convenient for better winding of the hose 7.

[0022] A sliding seat 14 that reciprocates horizontally is slidably connected inside the vehicle body 1. The sliding seat 14 only slides in the horizontal direction. A pre-squeezing wheel 9 is rotatably connected to the sliding seat 14. A slider is slidably connected to the sliding seat 14, and a movable wheel 10 is rotatably connected to the slider. The slider can only move in the direction of approaching or departing from the sliding seat 14, so that the movable wheel 10 and the pre-squeezing wheel 10 can cooperate with each other.

[0023] The hose 7 is located between the movable wheel 10 and the pre-squeezing wheel 9. When the sliding seat 14 moves away from the winding shaft 6, the movable wheel 10 and the pre-squeezing wheel 9 cooperate to squeeze the water from the hose 7. When the sliding seat 14 moves towards the winding shaft 6, the movable wheel 10 moves away from the pre-squeezing wheel 9, and a gap is formed between the movable wheel 10 and the hose 7. At this time, the movable wheel 10 does not squeeze the hose 7.

[0024] A rotary groove 13 is opened on the vehicle body 1. The slider is connected with a sliding shaft, and the sliding shaft is slidably arranged in the rotary groove 13. The slider is connected to the sliding seat 14 through a compression spring 11. The upper end of the compression spring 11 is connected to the sliding seat 14, and the lower end of the compression spring 11 is connected to the slider. Under the elastic force of the compression spring 11, the slider can always slide in the rotary groove 13. When the sliding seat 14 moves horizontally, the sliding shaft slides in the rotary groove 13 at this time.

[0025] The rotary groove 13 includes an upper rotary groove and a lower rotary groove that are connected end to end. The two ends of the upper rotary groove are respectively connected to the lower rotary groove through inclined grooves. When the sliding shaft slides in the upper rotary groove, a gap is formed between the movable wheel 10 and the hose 7. At this time, the movable wheel 10 does not squeeze the hose 7. When the sliding shaft slides in the lower rotary groove, the movable wheel 10 and the pre-squeezing wheel 9 cooperate to squeeze the water from the hose 7.

[0026] The vehicle body 1 is rotatably connected with a cylindrical cam 16. The cylindrical cam 16 is provided with a chute. The sliding seat 14 is connected with a movable shaft, and the movable shaft is slidably arranged in the chute. The sliding seat 14 is connected with the vehicle body 1 through a tension spring 12. The tension spring 12 is arranged in the horizontal direction. The left end of the tension spring 12 is connected with the sliding seat 14, and the right end of the tension spring 12 is connected with the vehicle body 1. The compression spring 11 is arranged in the vertical direction.

[0027] The chute includes an inclined chute and a horizontal chute that are connected end to end. When the movable shaft slides in the inclined chute, the sliding seat 14 moves away from the take-up reel 6. At this time, the sliding shaft slides in the lower rotary chute to squeeze the water hose 7. When the movable shaft slides in the horizontal chute, at this time, the sliding shaft slides in the upper rotary chute, and the tension spring 12 drives the sliding seat 14 to move towards the take-up reel 6, so as to realize the reset of the sliding seat 14.

[0028] The vehicle body 1 is also rotatably connected with two water squeezing wheels 8. The water hose 7 is located between the two water squeezing wheels 8. The water squeezing wheels 8 are located between the sliding seat 14 and the take-up reel 6. The water squeezing wheels 8 are used to further squeeze the water hose 7, so as to facilitate the winding of the water hose 7.

[0029] The vehicle body 1 is fixedly connected with a small motor 15. The small motor 15 includes a rotating shaft 23. The cylindrical cam 16 is fixedly connected with the rotating shaft 23. The small motor 15 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the cylindrical cam 16 to rotate. With the arranged cylindrical cam 16, the small motor 15 only needs to rotate in one direction to drive the sliding seat 14 to realize reciprocating motion, without complex control.

[0030] When the sliding seat 14 moves away from the take-up reel 6, the pre-squeezing wheel 9 and the movable wheel 10 cooperate to realize the pre-squeezing of the water hose 7. When the sliding seat 14 moves towards the take-up reel 6, the movable wheel 10 moves away from the pre-squeezing wheel 9. At this time, the movable wheel 10 does not contact the water hose 7. By pre-squeezing the water hose 7, the weight of the water hose 7 can be reduced, the efficiency of subsequent further water squeezing can be improved, and the overall winding efficiency can be effectively improved. Embodiment

[0031] Reference appendix Figures 4 - 5 ..., other structures are the same as those in Embodiment 1. The difference is that in this embodiment, the problem that the water hose may be bent during winding is considered.

[0032] The vehicle body 1 is fixedly connected with a slide rail 27. The slide rail 27 is slidably connected with a bracket 24 that moves in the horizontal direction. The slide rail 27 is arranged in the horizontal direction, so that the bracket 24 can only perform reciprocating movement in the horizontal direction. The bracket 24 is slidably connected with a rack 19 that moves in the vertical direction. The upper end of the rack 19 is rotatably connected with a pulley 20 for supporting the water hose 7. The pulley 20 is arranged below the water hose 7 and can play an auxiliary supporting role for the water hose 7. The water hose 7 first passes through the pulley 20 before cooperating with the pre-squeezing wheel 10 and the movable wheel 10.

[0033] The rotating shaft 23 is fixedly sleeved with a gear 18. The gear 18 can mesh with a rack 19 to drive the rack 19 to rise. A small motor 15 drives the rotating shaft 23 to rotate. The rotating shaft 23 can drive the gear 18 and the cylindrical cam 16 to rotate simultaneously, and the gear 18 is located on one side of the cylindrical cam 16.

[0034] The vehicle body 1 is also connected with a magnet 25 that has an attracting effect on the bracket 24. The bracket 24 is connected to the vehicle body 1 through a return spring 26. One end of the return spring 26 is connected to the bracket 24, and the other end of the return spring 26 is connected to the vehicle body 1. Under the elastic force of the return spring 26, the rack 19 is located on one side of the gear 18 and will not mesh with the gear 18.

[0035] The magnetic force of the magnet 25 is greater than the elastic force of the return spring 26. When the magnet 25 is energized, the magnet 25 can attract the bracket 24 to move, so that the return spring 26 is stretched, so that the gear 18 and the rack 19 mesh. At this time, when the gear 18 rotates, it can drive the rack 19 to rotate. It should be noted that the speed at which the small motor 15 drives the rotating shaft 23 to rotate is slow, and pre-squeezing water is a slow process. Therefore, the rotation speed of the gear 18 is slow, which is convenient for better meshing with the rack 19.

[0036] The bracket 24 is connected with a sliding rheostat 28. The sliding rheostat 28 is connected to the circuit of the large motor 3. The resistance value of the sliding rheostat 28 affects the magnitude of the current passing through the large motor 3. The sliding rheostat 28 includes a sliding piece, and the sliding piece is fixedly connected to the rack 19. When the rack 19 rises, the sliding piece moves along the sliding rheostat 28, increasing the loop current of the large motor 3 and making the rotation speed of the large motor 3 faster.

[0037] The sliding rheostat 28 is a commonly used circuit element. It can change its own resistance to control the circuit. As a variable resistor, the sliding rheostat generally consists of five parts: terminals, sliding piece, resistance wire, metal rod and porcelain cylinder. The resistance wire of the sliding rheostat is wound on an insulating porcelain cylinder, and the resistance wire is coated with insulating paint on the outside. When the rack 19 moves in the vertical direction, it can drive the sliding piece to move, thereby changing the resistance value of the sliding rheostat 28, and further realizing the adjustment of the current magnitude of the large motor 3.

[0038] Guide plates 5 are arranged on both sides of the water hose 7. The guide plates 5 are slidably connected to the vehicle body 1. The guide plates 5 are connected to the vehicle body 1 through springs 22. The vehicle body 1 is also connected with a switch 21 that controls the operation of the electromagnet 25. The switch 21 is arranged on one side of the guide plate 5. One side of the guide plate 5 is an inclined surface. Therefore, when the water hose 7 is bent, the bent part will drive the guide plate 5 to move horizontally, and the guide plate 5 presses the switch 21 to control the operation of the electromagnet 25.

[0039] The switch 21 is specifically a push switch with a spring reset function. When the switch 21 is pressed, the corresponding circuit of the electromagnet 25 can be pressed to be energized. The upper end of the spring 22 is connected to the guide plate 5, and the lower end of the spring 22 is connected to the vehicle body 1. When the guide plate 5 is reset under the action of the spring 22, the switch 21 automatically resets, enabling the electromagnet 25 to be de-energized. At this time, the electromagnet 25 stops working, and the return spring 26 drives the bracket 24 to reset.

[0040] When the water hose 7 is bent, the water hose 7 drives the guide plate 5 to move. The guide plate 5 causes the switch 21 to work. The switch 21 energizes the electromagnet 25. The electromagnet 25 drives the bracket 24 to move, enabling the rack 19 and the gear 18 to cooperate. At this time, the small motor 15 can drive the pulley 20 to move upward, so that the water hose 7 can be further stretched. When the rack 19 moves, it drives the sliding piece of the sliding rheostat 28 to move. The resistance value of the sliding rheostat 28 decreases, enabling the current of the large motor 3 to increase, thereby increasing the rotation speed of the winding shaft 6, so as to better stretch the water hose and reduce the influence of the bending of the water hose on the winding.

[0041] The present invention also proposes a method for using a fire hose winding device, which also includes the above-mentioned fire hose winding device, and comprises the following steps: The water hose 7 passes through the guide plate 5, the pulley 20, between the movable wheel 10 and the pre-squeezing wheel 9 and is then hung on the winding shaft 6. The large motor 3 drives the winding shaft 6 to rotate, so that the water hose 7 is wound around the winding shaft 6. At the same time, the small motor 15 drives the cylindrical cam 16 to rotate, and the cylindrical cam 16 drives the slide seat 14 to reciprocate horizontally; When the movable shaft slides in the inclined groove of the cylindrical cam 16, the slide seat 14 moves away from the winding shaft 6. At this time, the sliding shaft slides in the lower rotary groove, and the pre-squeezing wheel 9 and the movable wheel 10 cooperate with each other to squeeze the water hose 7. When the movable shaft slides in the horizontal groove of the cylindrical cam 16, at this time the sliding shaft slides in the upper rotary groove, and the tension spring 12 drives the slide seat 14 to move towards the winding shaft 6, thereby realizing the reset of the slide seat 14; When the water hose 7 is bent, the bent part of the water hose 7 drives the guide plate 5 to move, causing the spring 22 to deform. The guide plate 5 presses the switch 21. The switch 21 drives the electromagnet 25 to be energized and work. The electromagnet 25 drives the bracket 24 to move. The bracket 24 drives the rack 19 to move, enabling the rack 19 and the gear 18 to mesh; When the gear 18 rotates, it drives the rack 19 to rise. The rack 19 drives the pulley 20 to rise, stretching the water hose 7. At the same time, the rack 19 drives the sliding piece of the sliding rheostat 28 to move. The resistance value of the sliding rheostat 28 decreases, increasing the current of the large motor 3, increasing the rotation speed of the winding shaft 6, further stretching the water hose 7, and at the same time accelerating the winding speed of the water hose 7.

[0042] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fire hose winding device, comprising a vehicle body (1), wherein a winding shaft (6) for winding a water hose (7) is rotatably connected inside the vehicle body (1), and is characterized in that, A sliding seat (14) that reciprocates horizontally is slidably connected inside the vehicle body (1). A pre-squeezing wheel (9) is rotatably connected to the sliding seat (14). A slider is slidably connected to the sliding seat (14). A movable wheel (10) is rotatably connected to the slider; the water hose (7) is located between the movable wheel (10) and the pre-squeezing wheel (9). When the sliding seat (14) moves away from the winding shaft (6), the movable wheel (10) and the pre-squeezing wheel (9) cooperate to squeeze the water hose (7). When the sliding seat (14) moves towards the winding shaft (6), the movable wheel (10) moves away from the pre-squeezing wheel (9), and a gap is formed between the movable wheel (10) and the water hose (7).

2. The fire hose winding device according to claim 1, characterized in that, A rotary groove (13) is formed in the vehicle body (1). The slider is connected with a sliding shaft, and the sliding shaft is slidably arranged in the rotary groove (13). The slider is connected to the sliding seat (14) through a compression spring (11).

3. The fire hose rewinding device according to claim 2, wherein, The rotary groove (13) includes an upper rotary groove and a lower rotary groove that are connected end to end. When the sliding shaft slides in the upper rotary groove, a gap is formed between the movable wheel (10) and the water hose (7). When the sliding shaft slides in the lower rotary groove, the movable wheel (10) and the pre-squeezing wheel (9) cooperate to squeeze the water hose (7).

4. A fire hose winding device according to claim 1, characterized in that, A cylindrical cam (16) is rotatably connected to the vehicle body (1). A chute is formed in the cylindrical cam (16). The sliding seat (14) is connected with a movable shaft, and the movable shaft is slidably arranged in the chute. The sliding seat (14) is connected to the vehicle body (1) through a tension spring (12).

5. A fire hose winding device according to claim 4, characterized in that, The chute includes an inclined chute and a horizontal chute that are connected end to end. When the movable shaft slides in the inclined chute, the sliding seat (14) moves away from the winding shaft (6). When the movable shaft slides in the horizontal chute, the tension spring (12) drives the sliding seat (14) to move towards the winding shaft (6).

6. A fire hose winding device according to claim 4, characterized in that, A bracket (24) that moves horizontally is slidably connected to the vehicle body (1). A rack (19) that moves vertically is slidably connected to the bracket (24). A pulley (20) for supporting the water hose (7) is rotatably connected to the upper end of the rack (19).

7. The fire hose winding device according to claim 6, characterized in that, A small motor (15) is fixedly connected to the vehicle body (1). The small motor (15) includes a rotating shaft (23). The cylindrical cam (16) and the rotating shaft (23) are fixedly connected. A gear (18) is fixedly sleeved on the rotating shaft (23). The gear (18) can mesh with the rack (19) to drive the rack (19) to rise.

8. A fire hose winding device according to claim 7, characterized in that, The vehicle body (1) is further connected with a magnet (25) that has an attracting effect on the bracket (24). The bracket (24) is connected to the vehicle body (1) through a return spring (26). When the magnet (25) is energized, it can attract the bracket (24) to move, so that the gear (18) and the rack (19) are engaged with each other.

9. The fire hose rewinding device according to claim 7, characterized in that, The vehicle body (1) is connected to a large motor (3) that controls the rotation of the winding reel (6). The bracket (24) is connected to a sliding rheostat (28). The sliding rheostat (28) is connected to the circuit of the large motor (3). The sliding rheostat (28) includes a sliding piece, and the sliding piece is fixedly connected to the rack (19). When the rack (19) rises, the sliding piece moves along the sliding rheostat (28), increasing the loop current of the large motor (3) and making the rotation speed of the large motor (3) faster.

10. A fire hose winding device according to claim 8, characterized in that, Guide plates (5) are arranged on both sides of the water hose (7). The guide plates (5) are slidably connected to the vehicle body (1). The guide plates (5) are connected to the vehicle body (1) through springs (22). The vehicle body (1) is further connected to a switch (21) that controls the operation of the electromagnet (25). The switch (21) is arranged on one side of the guide plate (5).

Images