A portable multifunctional fire extinguisher

Abstract

The present invention discloses a portable multifunctional fire extinguisher, comprising an engine, a fan, a clutch unit, and an external transmission unit, wherein one axial end of the fan is connected to the engine, and the other axial end of the fan is connected to the clutch unit; the other axial end of the clutch unit is connected to the external transmission unit, the clutch unit is provided with rotational power by the engine, and the clutch unit provides clutch-regulated transmission power to the fans and the external transmission unit at both ends thereof, and the clutch unit internally slides axially, is circumferentially limited, and radially supports the power output shaft plugged into the engine. The multifunctional fire extinguisher can give full play to the ability of forest and grassland fire prevention personnel in key areas such as patrolmen to detect and handle fires early. At the same time, it can be applied to gardening work such as setting up fire isolation zones and pruning trees, which can truly achieve the goal of early handling of forest fires and greatly improve the efficiency of gardening work and early fire prevention.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, in particular to a portable multifunctional fire extinguisher. Background Art

[0002] Doing a good job in forest and grassland fire prevention has always been a global problem. In recent years, based on the continuous summary of experience and lessons, the construction of forest and grassland fire prevention infrastructure and equipment has gradually improved. However, at this stage, there is still no all-in-one machine that is fully functional, suitable for early disposal of forest and grassland fires, suitable for gardening, and easy to carry. Especially in forest and grassland fire prevention work, the existing technology invests a lot of manpower in fire patrols, but has not yet played the key role of forest fire patrols in early monitoring and handling of forest and grassland fires. For this reason, the research of a portable all-in-one machine suitable for forest and grassland fire prevention, gardening and other environments is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a portable multi-functional fire extinguisher. The multi-functional fire extinguisher can give full play to the ability of patrolmen and other key forest and grassland fire prevention personnel to detect and deal with fires early. At the same time, it can be used for opening fire isolation belts and pruning trees and other gardening work. It can truly achieve the management goal of "fighting early, fighting small, and fighting well" in the early treatment of forest fires, and can greatly improve the efficiency of early fire prevention and gardening work.

[0004] A portable multifunctional fire extinguisher comprises an engine, a fan, a clutch unit and an external transmission unit, wherein one axial end of the fan is connected to the engine, and the other axial end of the fan is connected to the clutch unit; the other axial end of the clutch unit is connected to the external transmission unit, the clutch unit is provided with rotational power by the engine, and the clutch unit provides clutch-regulated transmission power to the fans and the external transmission unit at both ends thereof, and the clutch unit internally slides axially, is circumferentially limited, and radially supports the power output shaft plugged into the engine.

[0005] Preferably, the clutch unit includes a flange shock absorber tube, a clutch sleeve, a clutch insert and a shaft sleeve, wherein the shaft sleeve is axially limited and circumferentially rotatably connected to the inside of the fan, and the fan blades are fixed on the circumferential outer wall of the shaft sleeve. The shaft sleeve is circumferentially rotatably sleeved on the power output shaft of the engine, and one end of the shaft sleeve is made with a plum blossom groove; one end of the flange shock absorber tube is fixedly connected to the housing of the fan, and the other end of the flange shock absorber tube is fixedly connected to the external transmission unit, and the interior of the flange shock absorber tube is coaxially plugged with the clutch sleeve, the clutch insert and the power output shaft from the outside to the inside, wherein the clutch sleeve rotates circumferentially and axially slides and is inserted into the interior of the flange shock absorber tube, and the interior of the clutch sleeve rotates circumferentially and is axially limited and inserted into the clutch insert; the clutch insert axially slides and circumferentially limited and sleeved on the power output shaft of the engine, one end of the clutch insert is clutched and docked with the plum blossom groove at one end of the shaft sleeve, and the other end of the clutch insert is transmission-connected to the external transmission unit.

[0006] Preferably, the external transmission unit includes a fixed tube seat, a connecting sleeve and a multi-stage extension rod, wherein the fixed tube seat is axially fixed to one end of the flange shock absorber tube, and the interior of the fixed tube seat and the multi-stage extension rod are both circumferentially rotated and axially limitedly connected with a transmission rod; one end of the transmission rod is axially fixed with a plum blossom socket, and the other end of the transmission rod is axially fixed with a plum blossom plug rod; the connecting sleeve is fixedly sleeved on the coaxial connection between the fixed tube seat and the multi-stage extension rod, as well as the coaxial connection between the multi-stage extension rod and the multi-stage extension rod.

[0007] Preferably, a radially penetrating limit hanging hole is opened in the middle of the flange shock absorber tube; a limit block inserted into the limit hanging hole is radially formed on the circumferential outer wall of the clutch sleeve, and a limit convex ring is also formed on the axial inner wall of the clutch sleeve.

[0008] Preferably, one end of the power output shaft located inside the fan is made into a smooth axis and is rotatably mounted on a shaft sleeve, and one end of the power output shaft located inside the clutch unit is made into a polygonal prism shaft and is circumferentially limited and axially slidably mounted on a clutch insert with a polygonal prism hole.

[0009] Preferably, the clutch plug tube slides axially, is limited circumferentially and is coaxially sleeved on the power output shaft, an axially penetrating polygonal ridge hole is made inside the clutch plug tube, a plum blossom key for clutch insertion into the plum blossom groove is made on the circumferential outer wall of one end of the clutch plug tube, and a radially inwardly concave limiting ring groove is made on the circumferential outer wall of the middle section of the clutch plug tube to cooperate with the hanging limiting convex ring.

[0010] Preferably, the engine is an electric motor or a fuel engine.

[0011] The advantages and technical effects of the present invention are:

[0012] The portable multifunctional fire extinguisher of the present invention realizes power switching through a clutch unit, that is, by controlling the axial displacement of the clutch sleeve and the clutch plug in the clutch unit, three operating modes of the engine are realized: 1. Engine idling; 2. The engine drives the fan blades to operate; 3. The engine drives the transmission rod of the external transmission unit to operate. In addition, the external transmission unit can be used as a chain saw, brush cutter or No. 2 fire extinguishing tool in the prior art to provide power transmission connection and fixed structural support. In the clutch unit, the shaft sleeve is used to cooperate with the clutch plug to transmit the rotational power of the engine power output shaft; in addition, the flange shock-absorbing tube of the clutch unit provides an extended connection between the fan and the fixed pipe seat, and according to actual use requirements, multi-stage extension rods of corresponding length or multiple settings are sequentially plugged into the fixed pipe seat; in addition, the flange shock-absorbing tube also provides limiting and guiding functions for the clutch sleeve. The clutch sleeve provides the clutch plug with axial clutch sliding adjustment power and positioning function. Finally, the plum blossom key of the clutch insert is connected to the plum blossom groove of the shaft sleeve, or the polygonal ridge hole of the clutch insert is connected to the plum blossom insert rod of the transmission rod.

[0013] The portable multifunctional fire extinguisher of the present invention combines a wind-powered blower for extinguishing fires with a chainsaw and brush cutter for cutting vegetation in gardening work, creating an integrated structure that can be disassembled and reassembled as needed. This significantly improves the ability of forest and grassland fire patrols and fire prevention personnel in key areas to handle forest fires early. Furthermore, because the device is adaptable to a variety of environments and convenient for gardeners to carry and use daily, it significantly increases its utilization rate, truly achieving multi-purpose use and reducing labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention (the multi-stage extension rod is not shown);

[0015] Figure 2 It is a half-section view of the present invention (engine idling posture);

[0016] Figure 3 This is a half-section view of the present invention (the engine drives the fan in working posture);

[0017] Figure 4 This is a half-section view of the present invention (the engine drives the external transmission unit in working posture);

[0018] Figure 5 Schematic diagram of the three-dimensional structure of the clutch cannula in the present invention;

[0019] Figure 6 A half-section view of the clutch cannula of the present invention;

[0020] Figure 7 Schematic diagram of the three-dimensional structure of the multi-stage extension rod in the present invention;

[0021] Figure 8 A half-section view of the multi-stage extension rod of the present invention;

[0022] In the figure: 1-engine; 2-fan; 3-clutch unit; 4-external transmission unit; 5-connecting sleeve; 6-shaft sleeve; 7-plum blossom slot; 8-flange shock absorber tube; 9-limit hanging hole; 10-limit block; 11-clutch sleeve; 12-clutch plug; 13-fixed pipe seat; 14-transmission rod; 15-bolt hole; 16-plum blossom plug rod; 17-plum blossom socket; 18-limiting ring groove; 19-limiting convex ring; 20-power output shaft; 21-multi-stage extension rod; 22-polygonal ridge hole; 23-plum blossom key. DETAILED DESCRIPTION

[0023] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings. It should be noted that the embodiments are illustrative and not restrictive, and the scope of protection of the present invention cannot be limited thereby.

[0024] A portable multifunctional fire extinguisher includes an engine 1, a fan 2, a clutch unit 3 and an external transmission unit 4, wherein one axial end of the fan is connected to the engine, and the other axial end of the fan is connected to the clutch unit; the other axial end of the clutch unit is connected to the external transmission unit, the clutch unit is provided with rotational power by the engine, and the clutch unit provides clutch-regulated transmission power for the fans and external transmission units at both ends thereof, and the clutch unit internally slides axially, limits circumferentially and radially supports the power output shaft 20 plugged into the engine.

[0025] Preferably, the clutch unit includes a flange shock absorber tube 8, a clutch sleeve 11, a clutch insert 12 and a shaft sleeve 6, wherein the shaft sleeve is axially limited and circumferentially rotated and connected to the inside of the fan, and the fan blades are fixed on the circumferential outer wall of the shaft sleeve, the shaft sleeve is circumferentially rotated and sleeved on the power output shaft of the engine, and a hexagonal groove 7 is made at one end of the shaft sleeve; one end of the flange shock absorber tube is fixed to the housing of the fan, and the other end of the flange shock absorber tube is fixedly connected to the external transmission unit, and the interior of the flange shock absorber tube is coaxially plugged with the clutch sleeve, the clutch insert and the power output shaft from the outside to the inside, wherein the clutch sleeve rotates circumferentially and axially slides and is inserted into the interior of the flange shock absorber tube, and the interior of the clutch sleeve rotates circumferentially and is axially limited and inserted into the clutch insert; the clutch insert is axially sliding and circumferentially limited and sleeved on the power output shaft of the engine, one end of the clutch insert is clutched to the hexagonal groove at one end of the shaft sleeve, and the other end of the clutch insert is transmission-connected to the external transmission unit.

[0026] Preferably, the external transmission unit includes a fixed tube seat 13, a connecting sleeve 5 and a multi-stage extension rod 21, wherein the fixed tube seat is axially fixed to one end of the flange shock absorber tube, and the fixed tube seat and the multi-stage extension rod are internally rotated circumferentially and axially limitedly connected with a transmission rod 14; one end of the transmission rod is axially fixed with a plum blossom socket 17, and the other end of the transmission rod is axially fixed with a plum blossom plug rod 16; the connecting sleeve is fixedly sleeved on the coaxial connection between the fixed tube seat and the multi-stage extension rod, as well as the coaxial connection between the multi-stage extension rod and the multi-stage extension rod.

[0027] Preferably, a radially penetrating limit hanging hole 9 is opened in the middle of the flange shock absorber tube; a limit block 10 inserted into the limit hanging hole is radially formed on the circumferential outer wall of the clutch sleeve, and a limit convex ring 19 is formed on the axial inner wall of the clutch sleeve.

[0028] Preferably, the end of the power output shaft located inside the fan is made into a smooth axis and is rotatably mounted on a shaft sleeve, and the end of the power output shaft located inside the clutch unit is made into a polygonal prism shaft and is circumferentially limited and axially slidably mounted on a clutch insert with a polygonal prism hole 22.

[0029] Preferably, the clutch plug tube slides axially, is limited circumferentially and is coaxially sleeved on the power output shaft. An axially penetrating polygonal prism hole is made inside the clutch plug tube, and a plum blossom key 23 is made on the circumferential outer wall of one end of the clutch plug tube for clutch insertion into the plum blossom groove. A radially concave limiting ring groove 18 is made on the circumferential outer wall of the middle section of the clutch plug tube to cooperate with the hanging limiting convex ring.

[0030] Preferably, the engine is an electric motor or a fuel engine.

[0031] In addition, it is preferred that the external transmission unit of the present invention can provide power for the chain saw and brush cutter in the prior art, and its connection method and transmission method both adopt mature technical means in the prior art.

[0032] In addition, the present invention is preferably used as a No. 2 fire extinguishing tool. When in use, the rubber strip of the No. 2 fire extinguishing tool is tied to the power output end of the multi-stage extension rod to extinguish the initial fire and prevent the fire from rekindling. It can truly achieve the management goal of "extinguishing early, extinguishing small, and extinguishing" in the early treatment of forest fires, and can greatly improve the work efficiency of early fire prevention and treatment.

[0033] In addition, the present invention preferably uses a mature product in the existing technology for the engine, and the fan can be modified from a wind-powered fire extinguisher in the existing technology. During the modification, it is only necessary to cancel the circumferential limit relationship between the fan blade sleeve shaft and the engine shaft, and then open a plum blossom groove at one end of the fan blade sleeve shaft.

[0034] In addition, the present invention preferably has a plurality of bolt holes 15 for bolt fixing radially formed on the connecting sleeve, the multi-stage extension rod and the fixed pipe seat, which are used to fix the connecting sleeve at the joint between the multi-stage extension rod and the fixed pipe seat, or at the joint between the multi-stage extension rod and the multi-stage extension rod, thereby realizing the function of lengthening and fixing.

[0035] In order to more clearly illustrate the specific embodiments of the present invention, several examples are provided below:

[0036] The portable multifunctional fire extinguisher of the present invention can be powered by either fuel or electricity. The fuel-powered engine includes a fuel supply system, an ignition system, a starting system, and a cooling system, and can be a mature and stable two-stroke or four-stroke engine on the market. The electric-powered engine includes a power source (high-density lithium batteries can be selected) and a motor.

[0037] The present invention includes an engine, a fan, a clutch unit, and a mounting component (external transmission unit) that can be connected and detached by bolts. The fan housing is bolted to the engine and a flange shock absorber tube. The engine's power output shaft penetrates the fan and provides rotational power to the clutch plug. The clutch plug is axially slidably adjusted and positioned by the clutch sleeve, thereby adjusting the power connection relationship between the clutch plug and the shaft sleeve and plum blossom socket at both ends. When the clutch plug is axially inserted into the shaft sleeve in the fan (such as Figure 3 As shown), the engine output shaft is driven by the clutch plug and the shaft sleeve and drives the fan to rotate; when the clutch plug is axially inserted into the plum blossom socket (as ... Figure 4 As shown), the engine output shaft drives the transmission rod to rotate through the clutch plug and plum blossom socket, thereby realizing external power connection.

[0038] In addition, the present invention preferably includes a shock absorber and a shock absorbing spring in the prior art installed inside the flange shock absorbing tube to achieve noise reduction of the fan, impeller or centrifugal fan.

[0039] Anything not described in the present invention adopts mature products and mature technical means in the prior art.

[0040] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A portable multifunctional fire extinguisher, characterized by: The clutch unit comprises an engine, a fan, a clutch unit and an external transmission unit, wherein one axial end of the fan is connected to the engine, and the other axial end of the fan is connected to the clutch unit; the other axial end of the clutch unit is connected to the external transmission unit, the clutch unit is provided with rotational power by the engine, and the clutch unit provides clutch-regulated transmission power to the fan and the external transmission unit at both ends thereof, and the clutch unit internally slides axially, is circumferentially limited, and radially supports the power output shaft plugged into the engine; The clutch unit includes a flange shock absorber tube, a clutch sleeve, a clutch insert tube and a shaft sleeve, wherein the shaft sleeve is axially limited and circumferentially rotatably connected to the inside of the fan, and the fan blades are fixed on the circumferential outer wall of the shaft sleeve. The shaft sleeve is circumferentially rotatably sleeved on the power output shaft of the engine, and one end of the shaft sleeve is made with a plum blossom groove; one end of the flange shock absorber tube is fixedly connected to the housing of the fan, and the other end of the flange shock absorber tube is fixedly connected to the external transmission unit, and the interior of the flange shock absorber tube is coaxially plugged with the clutch sleeve, the clutch insert tube and the power output shaft from the outside to the inside, wherein the clutch sleeve rotates circumferentially and axially slides and is inserted into the interior of the flange shock absorber tube, and the interior of the clutch sleeve rotates circumferentially and axially limited to insert the clutch insert tube; the clutch insert tube is axially sliding and circumferentially limited and sleeved on the power output shaft of the engine, one end of the clutch insert tube is clutch-connected to the plum blossom groove at one end of the shaft sleeve, and the other end of the clutch insert tube is transmission-connected to the external transmission unit; The external transmission unit includes a fixed tube seat, a connecting sleeve and a multi-stage extension rod, wherein the fixed tube seat is axially fixed to one end of the flange shock-absorbing tube, and the interiors of the fixed tube seat and the multi-stage extension rod are both circumferentially rotated and axially limitedly connected to the transmission rod; a plum blossom socket is axially fixed to one end of the transmission rod, and a plum blossom plug is axially fixed to the other end of the transmission rod; the connecting sleeve is fixedly sleeved on the coaxial connection between the fixed tube seat and the multi-stage extension rod, and on the coaxial connection between the multi-stage extension rod and the multi-stage extension rod; A radially penetrating limit hanging hole is opened in the middle of the flange shock absorber tube; a limit block inserted in the limit hanging hole is radially formed on the circumferential outer wall of the clutch sleeve, and a limit convex ring is formed on the axial inner wall of the clutch sleeve.

2. A portable multifunctional fire extinguisher according to claim 1, characterized in that: The end of the power output shaft located inside the fan is made into a smooth axis and is rotatably mounted on a shaft sleeve. The end of the power output shaft located inside the clutch unit is made into a polygonal prism shaft and is circumferentially limited and axially slidably mounted on a clutch insert with a polygonal prism hole.

3. A portable multifunctional fire extinguisher according to claim 1, characterized in that: The clutch plug tube slides axially, is limited circumferentially and is coaxially sleeved on the power output shaft. An axially penetrating polygonal prism hole is made inside the clutch plug tube. A plum blossom key that is clutch-plugged into the plum blossom groove is made on the circumferential outer wall of one end of the clutch plug tube. A radially inwardly concave limiting ring groove that cooperates with the hanging limiting convex ring is made on the circumferential outer wall of the middle section of the clutch plug tube.

4. A portable multifunctional fire extinguisher according to claim 1, characterized in that: The engine is an electric motor or a fuel engine.

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