Vibration damping structure for a backpacked wind fire extinguishing machine

Abstract

This utility model relates to the field of wind-powered fire extinguisher technology, specifically to a vibration damping structure for backpack-type wind-powered fire extinguishers. It includes a backpack-type wind-powered fire extinguisher body and a shell disposed outside the body. A base is fixedly installed at the bottom of the shell, and a base plate is disposed below the base. An upper damping pad and a lower damping pad are disposed between the base and the base plate, and multiple damping strip assemblies are disposed between the upper and lower damping pads. The base is detachably mounted on the base plate, pressing the upper and lower damping pads firmly against the base plate. A back plate is fixedly installed on the back of the backpack-type wind-powered fire extinguisher body. A side mesh plate is disposed on one side of the back plate, and two symmetrical damping damping components for damping and shock absorption are disposed between the side mesh plate and the back plate. This utility model has a good vibration damping effect, improving operational comfort.

Description

Technical Field

[0001] This utility model relates to the field of wind-powered fire extinguisher technology, specifically to a vibration damping structure for backpack-type wind-powered fire extinguishers. Background Technology

[0002] Backpack-mounted wind-powered fire extinguishers have become important equipment in forest fire fighting operations due to their high mobility and fire extinguishing efficiency. They use a fan to generate a strong airflow to disperse flames and reduce temperature, thereby achieving the purpose of extinguishing fires.

[0003] Utility model patent CN220404687U discloses a backpack-type wind-powered fire extinguisher, belonging to the field of fire protection equipment technology. The backpack-type wind-powered fire extinguisher includes a fixed frame, a carrying strap at the right end of the fixed frame, an oil tank at the bottom of the fixed frame, an engine at the top of the oil tank, a carrying handle at the top of the engine, a fan at the right side of the engine, a limiting block groove at the top of the fixed frame, a limiting block on the side of the fan, the limiting block being movably fitted into the limiting block groove, an air outlet pipe connected to the fan, a connecting hose in the middle of the air outlet pipe, and a fixing structure on the air outlet pipe. The fixing structure includes a buckle end on one side of the connecting hose and a fastening end on the other side of the connecting hose. A rotating buckle rod is provided on the buckle end, and the buckle rod is fastened to the fastening end.

[0004] While this technical solution offers advantages such as easier control of the air outlet direction and greater portability when used as a portable fire extinguisher, most backpack-mounted wind-powered fire extinguishers still have some shortcomings in practical use. For example, backpack-mounted wind-powered fire extinguishers are generally equipped with a corresponding generator. During operation, the high-speed rotation of components such as the engine and fan generates severe vibrations. Existing backpack-mounted wind-powered fire extinguishers lack corresponding vibration damping measures. These strong vibrations not only accelerate the wear and tear of various components and shorten the lifespan of the fire extinguisher, but also transmit these vibrations to the operator's back and shoulders, causing fatigue, muscle soreness, and potentially chronic injuries, affecting the operator's health and work efficiency. Therefore, we propose a vibration damping structure for backpack-mounted wind-powered fire extinguishers. Utility Model Content

[0005] The purpose of this invention is to provide a vibration damping structure for backpack wind-powered fire extinguishers to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vibration damping structure for a backpack-type wind-powered fire extinguisher includes a backpack-type wind-powered fire extinguisher body and a shell disposed outside the backpack-type wind-powered fire extinguisher body. A base is fixedly installed at the bottom of the shell, and a base plate is disposed below the base. An upper damping pad and a lower damping pad are disposed between the base and the base plate. Multiple damping strip assemblies are disposed between the upper damping pad and the lower damping pad. The base is detachably installed on the base plate, and the base presses the upper damping pad and the lower damping pad tightly against the base plate. A back plate is fixedly installed on the back of the backpack-type wind-powered fire extinguisher body. A side mesh plate is disposed on one side of the back plate. Two symmetrical damping damping components for damping and vibration reduction are disposed between the side mesh plate and the back plate.

[0008] Preferably, a handle is fixedly installed on the top of the housing, and multiple ventilation holes are provided on the side mesh plate.

[0009] Preferably, the side mesh plate is fitted with a breathable pad on the side of the human body, and the breathable pad has a porous structure.

[0010] Preferably, the side mesh plate is fitted to the side of the human body and is also fixedly installed with two shoulder straps for carrying on the shoulders.

[0011] Preferably, the bottom surface of the upper shock-absorbing pad is provided with a snap-fit ​​part, and the upper surface of the lower shock-absorbing pad is provided with a snap-fit ​​groove, and the snap-fit ​​part and the snap-fit ​​groove are engaged in a snap-fit ​​fit.

[0012] Preferably, the shock absorber strip assembly includes two symmetrical shock absorber strips fixedly installed on the bottom wall of the snap-fit ​​groove. A central reinforcing strip is fixedly installed between the two shock absorber strips in each group, and a deformation gap is provided between two adjacent groups of shock absorber strip assemblies.

[0013] This feature enables the damping strips to provide further shock absorption and protection, and the deformation gap provides expansion space when the damping strips deform.

[0014] Preferably, the damping shock absorber includes a piston rod hinged to the back plate and a damping sleeve hinged to the side of the side mesh plate. A piston is fixedly installed at the end of the piston rod. The piston is located inside the damping sleeve and is slidably connected to the damping sleeve. The damping sleeve is filled with damping fluid.

[0015] This setting enables further vibration reduction.

[0016] Preferably, the damping sleeve is provided with a sliding chamber, the piston is located in the sliding chamber and is slidably connected to the sliding chamber, a spring is fixedly installed between the piston and the bottom wall of the damping sleeve, and an upper sealing ring is fixedly installed on the top wall of the sliding chamber.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model effectively buffers the vibration of the bottom of the backpack wind-powered fire extinguisher by setting an upper shock-absorbing pad, a lower shock-absorbing pad, and a shock-absorbing strip assembly between the base and the bottom plate, and cooperating with the snap-fit ​​part and the snap-fit ​​groove, thereby protecting the equipment components and extending their service life.

[0019] 2. This utility model achieves damping and buffering of lateral vibration during equipment operation by setting a damping and shock-absorbing component consisting of a damping sleeve, piston rod, piston, etc. between the back plate and the side mesh plate, filling it with damping fluid and setting a spring. When the equipment vibrates, the piston slides in the damping sleeve, and the damping fluid suppresses the vibration, thereby reducing the impact of vibration on the operator's body and improving the comfort of operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the damping shock absorber of this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the present invention;

[0023] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Main body of backpack wind-powered fire extinguisher; 10. Shell; 11. Handle; 12. Base; 13. Back panel; 14. Bottom plate; 15. Side mesh panel; 151. Breathable pad; 16. Shoulder strap;

[0026] 2. Upper damping pad; 20. Snap-fit ​​part; 21. Lower damping pad; 211. Snap-fit ​​groove; 22. Damping strip assembly; 221. Damping strip; 222. Central reinforcing strip; 223. Deformation gap;

[0027] 3. Damping shock absorber; 30. Damping sleeve; 31. Sliding chamber; 32. Upper sealing ring; 33. Piston rod; 34. Piston; 35. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0029] Please see Figures 1-4 This utility model provides a technical solution: a vibration damping structure for a backpack-type wind-powered fire extinguisher, including a backpack-type wind-powered fire extinguisher body 1 and a shell 10 disposed outside the backpack-type wind-powered fire extinguisher body 1. A base 12 is fixedly installed at the bottom of the shell 10, and a base plate 14 is disposed below the base 12. An upper damping pad 2 and a lower damping pad 21 are disposed between the base 12 and the base plate 14. A plurality of damping strip assemblies 22 are disposed between the upper damping pad 2 and the lower damping pad 21. The base 12 is detachably mounted on the base plate 14. The base 12 presses the upper shock-absorbing pad 2 and the lower shock-absorbing pad 21 tightly onto the base plate 14. The bottom surface of the upper shock-absorbing pad 2 is provided with a snap-fit ​​part 20, and the upper surface of the lower shock-absorbing pad 21 is provided with a snap-fit ​​groove 211. The snap-fit ​​part 20 and the snap-fit ​​groove 211 engage with each other, and the snap-fit ​​part 20 of the upper shock-absorbing pad 2 and the snap-fit ​​groove 211 of the lower shock-absorbing pad 21 engage with each other, so that the entire structure is tightly connected, effectively absorbing and buffering the vibration transmitted from the bottom when the wind-powered fire extinguisher is running, reducing the impact of vibration on the overall equipment, and extending the service life of the equipment.

[0030] In this embodiment, the damping strip assembly 22 includes two symmetrical damping strips 221 fixedly installed on the bottom wall of the snap-fit ​​groove 211. A central reinforcing strip 222 is fixedly installed between the two damping strips 221 in each group. A deformation gap 223 is provided between the two adjacent groups of damping strip assemblies 22, so that the damping strip 221 can fully exert its elastic deformation capacity when subjected to vibration. The central reinforcing strip 222 enhances the structural stability, and the deformation gap 223 provides space for the deformation of the damping strip 221, further improving the vibration reduction effect and reducing the wear of equipment components caused by vibration.

[0031] Specifically, a back plate 13 is fixedly installed on the back of the main body 1 of the backpack wind-powered fire extinguisher. A side mesh plate 15 is provided on one side of the back plate 13. Two symmetrical damping damping components 3 are provided between the side mesh plate 15 and the back plate 13 for damping and shock absorption. The damping damping component 3 includes a piston rod 33 hinged to the back plate 13 and a damping sleeve 30 hinged to the side of the side mesh plate 15. A piston 34 is fixedly installed at the end of the piston rod 33. The piston 34 is located inside the damping sleeve 30 and is slidably connected to the damping sleeve 30. The damping sleeve 30 is filled with damping fluid. When the wind-powered fire extinguisher vibrates, the piston 34 slides in the sliding chamber 31 of the damping sleeve 30. The damping fluid hinders the piston movement and absorbs vibration energy, thereby effectively damping and reducing the vibration on the side of the equipment and reducing the intensity of the vibration transmitted to the operator's body.

[0032] like Figure 2 As shown, a sliding chamber 31 is provided inside the damping sleeve 30. The piston 34 is located inside the sliding chamber 31 and is slidably connected to the sliding chamber 31. A spring 35 is fixedly installed between the piston 34 and the bottom wall of the damping sleeve 30. An upper sealing ring 32 is fixedly installed on the top wall of the sliding chamber 31. Based on the damping fluid shock absorption, the spring 35 can subsequently drive the piston 34 to return to its original state after displacement. At the same time, the upper sealing ring 32 on the top wall of the sliding chamber 31 prevents the damping fluid from leaking, ensuring the long-term stable operation of the damping shock absorber 3.

[0033] like Figure 1 As shown, a handle 11 is fixedly installed on the top of the housing 10, which makes it convenient for operators to grip the fire extinguisher when they need to carry it, thus improving the flexibility of the equipment. Multiple ventilation holes are provided on the side mesh plate 15, which allows the equipment to dissipate heat in time during carrying and use, thereby improving the comfort of the operator.

[0034] like Figure 1 As shown, the side mesh plate 15 is attached to the side of the human body and has a breathable pad 151. The breathable pad 151 has a porous structure, which further enhances breathability and reduces the stuffiness when the operator carries it. At the same time, the breathable pad 151 can also play a certain cushioning role and improve carrying comfort.

[0035] like Figure 1 As shown, the side mesh plate 15 is attached to the side of the human body and is also fixedly installed with two shoulder straps 16. The shoulder straps 16 are used to carry the equipment on the shoulders, so that the equipment can be stably carried on the operator's shoulders, distributing the weight of the equipment and reducing fatigue.

[0036] When using the vibration damping structure of the backpack wind-powered fire extinguisher of this utility model, the operator first puts the two shoulder straps 16 across his shoulders, so that the side mesh plate 15 fits against the side of the body. The breathable pad 151 can reduce the feeling of stuffiness and provide cushioning. At this time, the main body 1 of the backpack wind-powered fire extinguisher provides initial vibration damping protection for side vibration through the damping shock absorber 3 between the back plate 13 and the side mesh plate 15.

[0037] After the wind-powered fire extinguisher is started, the vibration generated by the operation of the equipment is first buffered by the upper shock-absorbing pad 2, the lower shock-absorbing pad 21 and the shock-absorbing strip assembly 22 between the base 12 and the base plate 14. The snap-fit ​​part 20 of the upper shock-absorbing pad 2 and the snap-fit ​​groove 211 of the lower shock-absorbing pad 21 are tightly matched. The shock-absorbing strip 221 elastically deforms in the deformation gap 223. The central reinforcing strip 222 ensures the stability of the structure and effectively weakens the vibration transmitted from the bottom.

[0038] Meanwhile, when the equipment vibration causes relative movement between the back plate 13 and the side mesh plate 15, it drives the piston rod 33 and piston 34 of the damping shock absorber 3 to slide in the sliding chamber 31 of the damping sleeve 30. The damping fluid hinders the piston movement and absorbs vibration energy, and the spring 35 assists the piston 34 to reset, further reducing vibration transmission.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vibration damping structure for a backpack-type wind-powered fire extinguisher, comprising a backpack-type wind-powered fire extinguisher body (1) and a shell (10) disposed outside the backpack-type wind-powered fire extinguisher body (1), characterized in that: A base (12) is fixedly installed at the bottom of the housing (10). A base plate (14) is provided below the base (12). An upper shock-absorbing pad (2) and a lower shock-absorbing pad (21) are provided between the base (12) and the base plate (14). A plurality of shock-absorbing strip assemblies (22) are provided between the upper shock-absorbing pad (2) and the lower shock-absorbing pad (21). The base (12) is detachably installed on the base plate (14). The base (12) presses the upper shock-absorbing pad (2) and the lower shock-absorbing pad (21) onto the base plate (14). A back plate (13) is fixedly installed on the back of the backpack wind-powered fire extinguisher body (1). A side mesh plate (15) is provided on one side of the back plate (13). Two symmetrical damping shock absorbers (3) for damping and shock absorption are provided between the side mesh plate (15) and the back plate (13).

2. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 1, characterized in that: A handle (11) is fixedly installed on the top of the housing (10), and multiple ventilation holes are provided on the side mesh plate (15).

3. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 1, characterized in that: The side mesh plate (15) is attached to the side of the human body and has a breathable pad (151) provided. The breathable pad (151) has a porous structure.

4. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 1, characterized in that: The side mesh plate (15) is attached to the side of the human body and is also fixedly installed with a shoulder strap (16). There are two shoulder straps (16) for carrying on the shoulders.

5. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 1, characterized in that: The bottom surface of the upper shock-absorbing pad (2) is provided with a snap-fit ​​part (20), and the upper surface of the lower shock-absorbing pad (21) is provided with a snap-fit ​​groove (211). The snap-fit ​​part (20) and the snap-fit ​​groove (211) are snap-fitted together.

6. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 5, characterized in that: The shock-absorbing strip assembly (22) includes two symmetrical shock-absorbing strips (221) fixedly installed on the bottom wall of the snap-fit ​​groove (211). A central reinforcing strip (222) is fixedly installed between the two shock-absorbing strips (221) in each group. A deformation gap (223) is provided between the two adjacent groups of shock-absorbing strip assemblies (22).

7. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 1, characterized in that: The damping shock absorber (3) includes a piston rod (33) hinged to the back plate (13) and a damping sleeve (30) hinged to the side of the side mesh plate (15). A piston (34) is fixedly installed at the end of the piston rod (33). The piston (34) is located inside the damping sleeve (30) and is slidably connected to the damping sleeve (30). The damping sleeve (30) is filled with damping fluid.

8. The vibration damping structure for a backpack-type wind-powered fire extinguisher according to claim 7, characterized in that: The damping sleeve (30) is provided with a sliding chamber (31), the piston (34) is located in the sliding chamber (31) and is slidably connected to the sliding chamber (31), a spring (35) is fixedly installed between the piston (34) and the bottom wall of the damping sleeve (30), and an upper sealing ring (32) is fixedly installed on the top wall of the sliding chamber (31).

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