A backpack centrifugal water pump for fire extinguishing

Abstract

This utility model relates to the field of backpack centrifugal water pumps, and discloses a backpack centrifugal water pump for fire extinguishing, including two side plates and a water hose. A centrifugal water pump is installed between the two side plates, and a base plate is fixedly connected to the bottom of the two side plates. Four crossbars are fixedly connected between the two side plates. Two carrying straps for users to carry the pump are fixedly connected to the front of the front side plate. Support components are provided on both the left and right sides of the side plates, and a winding component is provided on the rear side of the rear side plate. This utility model provides stable support for the entire device, improves the stability of the centrifugal water pump during operation, prevents tipping and displacement, and allows the support structure to be folded and stored. A rotating rod rotates a disc to rotate the winding roller, thereby winding the water hose and preventing it from loosening and unraveling, thus providing a structure for winding the water hose.

Description

Technical Field

[0001] This utility model relates to the field of backpack centrifugal water pumps, and more particularly to a backpack centrifugal water pump for fire extinguishing. Background Technology

[0002] The backpack centrifugal water pump is a portable firefighting equipment designed specifically for firefighting in complex terrain. Lightweight and portable, it can be carried by a single person and is suitable for mountainous and jungle areas inaccessible to fire trucks. Powered by a small engine, it draws and pressurizes water from streams, ponds, or other sources using centrifugal force, providing a continuous flow of water to the hoses and nozzles. It can quickly respond to initial fires and assist in extinguishing small building fires or forest fires. Its design emphasizes portability and practicality, making it an important tool for rapid fire control in grassroots firefighting and forestry protection scenarios, effectively compensating for the limitations of large firefighting equipment in complex environments.

[0003] However, current backpack centrifugal water pumps have the following drawbacks: First, they lack a stable support structure during operation, making them prone to tipping over and displacement, which affects their operational stability; second, they lack a dedicated hose reel structure, making the hose easy to loosen and unravel, and the reeling operation is inconvenient. In response to this technical problem, this application proposes a backpack centrifugal water pump for fire extinguishing. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a backpack centrifugal water pump for fire extinguishing. This pump aims to provide stable support for the entire device, improve the stability of the centrifugal water pump during operation, prevent tipping and displacement, and allow the support structure to be folded and stored. Furthermore, a rotating rod is used to rotate a disc, causing a winding roller to rotate, thereby winding up the water hose and preventing it from loosening and unraveling. This design incorporates a structure for winding up the water hose within the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A backpack centrifugal water pump for fire extinguishing includes two side plates and a water hose. The centrifugal water pump is installed between the two side plates. A base plate is fixedly connected to the bottom of the two side plates. Four crossbars are fixedly connected between the two side plates. Two carrying straps for users to carry the pump are fixedly connected to the front of the front side plate. Support assemblies are provided on both the left and right sides of the side plates to support the entire device. A winding assembly is provided on the rear side of the rear side plate to wind up the water hose.

[0006] Furthermore, the support assembly includes two sliding grooves formed on the left and right sides of the side plate. A first threaded rod is rotatably connected inside the sliding groove, and a slider is threadedly connected to the outer wall of the first threaded rod. The slider is slidably connected inside the sliding groove.

[0007] Furthermore, support plates are rotatably connected to the four corners of the base plate. The support plates and the slider are connected by support rods. One end of the support rod is rotatably connected to the inside of the support plate, and the other end of the support rod is rotatably connected to the inside of the slider.

[0008] Furthermore, a ground cone is fixedly connected to the bottom end of the support rod, and the left and right sides of the top side of the side plate are rotatably connected to a first knob via a damping shaft, with the top end of the first threaded rod fixedly connected inside the first knob.

[0009] Furthermore, the winding assembly includes a winding roller rotatably connected to the rear side of the rear side plate, the water tape is wound around the outer wall of the winding roller, and a disc is fixedly connected to the rear side of the winding roller.

[0010] Furthermore, a rotating rod is slidably connected inside the disk, the front end of the rotating rod is inserted into the interior of the rear side plate, and an insert rod is slidably connected inside the disk, the bottom end of the insert rod is inserted into the interior of the rotating rod.

[0011] Furthermore, the outer wall of the rotating rod is provided with a groove that matches the inside of the disc, and the inside of the disc is rotatably connected to a second threaded rod, and the insertion rod is threadedly connected to the outer wall of the second threaded rod.

[0012] Furthermore, the outer periphery of the disk is rotatably connected to a second knob via a damping shaft, and the end of the second threaded rod is fixedly connected to the inside of the second knob.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the first knob rotates the first threaded rod, which drives the slider to slide up and down, thereby forming a diagonal brace between the support plate and the support rod, thus providing stable support for the entire device, improving the stability of the centrifugal water pump during operation, preventing tipping and displacement problems, and allowing the support plate, support rod and ground cone to be folded and stored, so that the support structure can be folded and stored.

[0014] 2. In this utility model, the rotating rod rotates the disc to make the winding roller rotate, thereby winding the water hose. By inserting the front end of the rotating rod into the rear side plate, the outer wall of the rotating rod presses against the end of the water hose to prevent the water hose from loosening and spreading. The second threaded rod drives the insertion rod to insert into or disengage from the rotating rod to lock or unlock the rotating rod. Attached Figure Description

[0015] Figure 1 This is a perspective view of a backpack centrifugal water pump for fire extinguishing proposed in this utility model. Figure 2This is a side view of a backpack centrifugal water pump for fire extinguishing proposed in this utility model. Figure 3 This is a schematic diagram of the retracted support plate of a backpack centrifugal water pump for fire extinguishing proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the rotating rod structure of a backpack centrifugal water pump for fire extinguishing proposed in this utility model. Figure 6 This is a schematic diagram of the internal structure of a disc-type backpack centrifugal water pump for fire extinguishing proposed in this utility model.

[0016] Legend: 1. Base plate; 2. Side plate; 3. Back strap; 4. Crossbar; 5. First threaded rod; 6. Support rod; 7. Centrifugal water pump; 8. Disc; 9. Water hose; 10. Support plate; 11. Slider; 12. First knob; 13. Ground cone; 14. Rotating rod; 15. Second knob; 16. Second threaded rod; 17. Insert rod; 18. Take-up roller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a backpack centrifugal water pump for fire extinguishing, comprising two side plates 2 and a water hose 9. A centrifugal water pump 7 is installed between the two side plates 2. A base plate 1 is fixedly connected to the bottom of the two side plates 2. Four crossbars 4 are fixedly connected between the two side plates 2. Two carrying straps 3 for carrying by the user are fixedly connected to the front side of the front side plate 2. A high-temperature resistant soft pad is fixedly connected to the front side of the front side plate 2 to improve carrying comfort. The soft pad is made of flame-retardant foamed rubber or other non-flammable and relatively soft materials. (See reference...) Figure 1 , Figure 3 and Figure 4Two sliding grooves are provided on both the left and right sides of the side plate 2. A first threaded rod 5 is rotatably connected inside the sliding groove. A slider 11 is threadedly connected to the outer wall of the first threaded rod 5. The slider 11 is slidably connected inside the sliding groove. Support plates 10 are rotatably connected to the four corners of the bottom plate 1. The support plates 10 and the slider 11 are connected by support rods 6. One end of the support rod 6 is rotatably connected to the inside of the support plate 10, and the other end of the support rod 6 is rotatably connected to the inside of the slider 11. A ground cone 13 is fixedly connected to the bottom end of the support rod 6. A first knob 12 is rotatably connected to the left and right sides of the top side of the side plate 2 through a damping shaft. The top end of the first threaded rod 5 is fixedly connected to the inside of the first knob 12. By rotating the first knob 12, the first threaded rod 5 is rotated, causing the first threaded rod 5 to drive the slider 11 to slide up and down. When the slider 11 slides down, the slider 11 will... The support rod 6 rotates the support plate 10, causing it to rotate onto the ground. Simultaneously, the support rod 6 rotates the ground cone 13, causing it to rotate in an angled direction towards the ground. By inserting the ground cone 13 into the ground, the entire device is further secured, forming a diagonal brace between the support plate 10 and the support rod 6. This provides stable support for the entire device, improving the stability of the centrifugal water pump 7 during operation and preventing tipping and displacement. When the slider 11 slides upward, it rotates the support plate 10 via the support rod 6, causing it to rotate into the groove. The support rod 6 then rotates the ground cone 13, causing it to rotate into the interior of the support plate 10. This allows the support plate 10, support rod 6, and ground cone 13 to be folded and stored, enabling the support structure to be folded and stored.

[0019] Reference Figure 2 , Figure 5 and Figure 6A take-up roller 18 is rotatably connected to the rear side plate 2. A water hose 9 is wound around the outer wall of the take-up roller 18. A disc 8 is fixedly connected to the rear side of the take-up roller 18. A rotating rod 14 is slidably connected inside the disc 8. The front end of the rotating rod 14 is inserted into the interior of the rear side plate 2. A plug rod 17 is slidably connected inside the disc 8. The bottom end of the plug rod 17 is inserted into the interior of the rotating rod 14. The outer wall of the rotating rod 14 has a groove that matches the interior of the disc 8. A second threaded rod 16 is rotatably connected inside the disc 8. The plug rod 17 is threaded onto the outer wall of the second threaded rod 16. A second knob 15 is rotatably connected to the outer circumference of the disc 8 via a damping shaft. The end of the second threaded rod 16 is fixedly connected inside the second knob 15. Rotating the second knob 15 causes the second threaded rod 16 to rotate. Because the outer wall of the plug rod 17 has a groove that matches the interior of the disc 8, the second threaded rod 16 drives the plug rod 17 to slide upwards, thus releasing the rotation rod 14. Lock the rotating rod 14, then pull it out from the rear side plate 2. Then turn the second knob 15 again to reverse the second threaded rod 16, so that the insert rod 17 is reinserted into the rotating rod 14. Lock the rotating rod 14 again, and then rotate the disc 8 through the rotating rod 14 to rotate the take-up roller 18, thereby winding up the water hose 9. The water hose 9 can also be released. To release the water hose 9, you can directly hold one end of the water hose 9 by hand and pull the water hose 9 to release it. After the water hose 9 is completely wound onto the take-up roller 18, release the lock on the rotating rod 14 again, and then reinsert the front end of the rotating rod 14 into the rear side plate 2, so that the outer wall of the rotating rod 14 presses against the end of the water hose 9 to prevent the water hose 9 from loosening and spreading. Then lock the rotating rod 14 again. The damping shafts in this device are all of the type with high damping to prevent the first threaded rod 5 or the second threaded rod 16 from rotating accidentally due to vibrations generated by the external environment or the operation of the centrifugal water pump 7.

[0020] Working principle: First, carry the device to the designated location. Then, turn the first knob 12 to rotate the first threaded rod 5, causing the first threaded rod 5 to drive the slider 11 to slide downwards. The slider 11 will then rotate the support plate 10 via the support rod 6, causing the support plate 10 to rotate onto the ground. At the same time, the support rod 6 will rotate the ground cone 13, causing the ground cone 13 to rotate in an angled direction towards the ground. By inserting the ground cone 13 into the ground, the entire device is further secured. Then, turn the second knob 15 to rotate the second threaded rod 12 to drive the first threaded rod 5 to rotate the first threaded rod 5. The threaded rod 16 rotates, and because the outer wall of the insertion rod 17 has a groove that matches the inside of the disc 8, the second threaded rod 16 drives the insertion rod 17 to slide upward to release the lock on the rotating rod 14. Then the rotating rod 14 is pulled out from the rear side plate 2. After that, the second knob 15 is turned again to reverse the second threaded rod 16, so that the insertion rod 17 is reinserted into the rotating rod 14 and the rotating rod 14 is locked again. Then the water hose 9 is pulled out from the take-up roller 18 and connected to the centrifugal water pump 7. After that, the fire extinguishing operation can be carried out.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A backpack centrifugal water pump for fire extinguishing, characterized in that: It includes two side plates (2) and a water hose (9). A centrifugal water pump (7) is installed between the two side plates (2). A base plate (1) is fixedly connected to the bottom of the two side plates (2). Four crossbars (4) are fixedly connected between the two side plates (2). Two carrying straps (3) for users to carry are fixedly connected to the front side of the front side plate (2). Support components are provided on both the left and right sides of the side plate (2) to support the entire device. A winding component is provided on the rear side of the rear side plate (2) to wind up the water hose (9).

2. A backpack centrifugal water pump for fire extinguishing according to claim 1, characterized in that: The support assembly includes two sliding grooves opened on the left and right sides of the side plate (2). A first threaded rod (5) is rotatably connected inside the sliding groove. A slider (11) is threadedly connected to the outer wall of the first threaded rod (5). The slider (11) is slidably connected inside the sliding groove.

3. A backpack centrifugal water pump for fire extinguishing according to claim 2, characterized in that: The base plate (1) is rotatably connected to the four corners of the base plate (1). The support plate (10) and the slider (11) are connected by a support rod (6). One end of the support rod (6) is rotatably connected to the inside of the support plate (10), and the other end of the support rod (6) is rotatably connected to the inside of the slider (11).

4. A backpack centrifugal water pump for fire extinguishing according to claim 3, characterized in that: The bottom end of the support rod (6) is fixedly connected to a ground cone (13), and the left and right sides of the top side of the side plate (2) are rotatably connected to a first knob (12) via a damping shaft. The top end of the first threaded rod (5) is fixedly connected to the inside of the first knob (12).

5. A backpack centrifugal water pump for fire extinguishing according to claim 1, characterized in that: The winding assembly includes a winding roller (18) rotatably connected to the rear side of the rear side plate (2), the water belt (9) is wound around the outer wall of the winding roller (18), and a disc (8) is fixedly connected to the rear side of the winding roller (18).

6. A backpack centrifugal water pump for fire extinguishing according to claim 5, characterized in that: The disc (8) is slidably connected to a rotating rod (14), the front end of which is inserted into the interior of the rear side plate (2). The disc (8) is slidably connected to a plug rod (17), the bottom end of which is inserted into the interior of the rotating rod (14).

7. A backpack centrifugal water pump for fire extinguishing according to claim 6, characterized in that: The outer wall of the rotating rod (14) is provided with a groove that matches the inside of the disc (8). The inside of the disc (8) is rotatably connected to a second threaded rod (16), and the insert rod (17) is threadedly connected to the outer wall of the second threaded rod (16).

8. A backpack centrifugal water pump for fire extinguishing according to claim 7, characterized in that: The outer periphery of the disc (8) is rotatably connected to a second knob (15) via a damping shaft, and the end of the second threaded rod (16) is fixedly connected to the inside of the second knob (15).

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