Hand-push type fire-fighting electric smoke exhaust device

Abstract

The invention provides a hand-push type fire-fighting electric smoke exhaust device, relates to the technical field of fire-fighting electric smoke exhaust, and aims at improving the smoke exhaust efficiency and the operation flexibility and solving the problems that an existing fire-fighting smoke exhaust device is not adjustable in fan angle, low in smoke exhaust efficiency, lack of buffering of water pressure impact and the like. The device comprises a hand push frame body, a pump connecting cavity component, a fan body and a fan angle adjusting and supporting mechanism. A fan angle adjusting mechanism is arranged, so that the fan angle can be flexibly adjusted according to the requirements of a fire extinguishing site, and the smoke exhaust effect is optimized; a buffer liquid level cavity is arranged in the pump connecting cavity part, so that the water pressure change can be effectively buffered, the influence of water pressure impact on an injection system is prevented, and the stability and the safety of equipment are enhanced; the structure is optimized, the adaptability is high, efficient and safe smoke discharging and water spraying functions can be provided in various fire extinguishing and rescue scenes, the rescue efficiency is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of electric smoke exhaust for fire fighting, and in particular to a hand-push electric smoke exhaust device for fire fighting. Background Art

[0002] Fire-fighting electric smoke exhaust fans play a vital role in fire accidents. Their main task is to ensure the safe evacuation of personnel and reduce the harm of smoke to human health by effectively discharging thick smoke and toxic gases.

[0003] Prior art CN201815027U discloses a portable, hand-pushed fire-fighting electric smoke exhauster, which includes a steel frame structure, a wind tube is fixed on the steel frame, a power source is arranged at the bottom, a rotating wheel seat and a climbing wheel seat are arranged at the front end, and it has steering and braking functions. The equipment has dual mobile functions of being portable and hand-pushed, can quickly exhaust smoke, effectively save the physical strength of firefighters, especially in the application scenario of fire fighting and rescue process, can improve the mobility and convenience of operation, and is widely used in tunnels, mines and other environments.

[0004] However, such prior art electric smoke exhaust machines have some obvious deficiencies and defects, which are mainly manifested in the following aspects: 1. The fan angle cannot be adjusted: The existing push-type fire electric smoke exhaust fan has a fixed wind tube structure, and the fan angle cannot be adjusted according to actual needs. As a result, in different firefighting scenarios, if the fire source is located higher or lower, the smoke exhaust effect may be greatly reduced, and it cannot flexibly respond to various complex rescue situations.

[0005] 2. Limited smoke exhaust efficiency: Although the existing technology has improved the smoke exhaust speed by designing the connection between the power source and the air duct, the smoke exhaust efficiency is still insufficient when dealing with large-scale fires or dense smoke in enclosed spaces. Especially in scenarios that require long-term and large-scale smoke exhaust, the existing equipment may not be able to continuously and effectively exhaust smoke, affecting the rescue effect.

[0006] 3. Lack of buffering and regulating mechanism, water pressure shock problem: When the existing device is performing water spraying operation, there is no effective water pressure buffering mechanism to cope with water pressure changes, and it is unable to effectively buffer and adjust the water flow pressure. Sudden changes in water pressure may cause shocks to the spraying mechanism of the equipment. There is a lack of effective water pressure buffering devices to stabilize the water flow and prevent unstable spraying due to water pressure fluctuations, which affects the efficiency and safety of fire extinguishing. Especially in high water pressure environments, the connecting components and spraying components inside the equipment are subjected to greater pressure shocks, increasing the risk of equipment damage and affecting its service life and safety. Summary of the invention

[0007] The problem to be solved by the present invention is to improve the smoke exhaust efficiency and operational flexibility of the existing fire-fighting electric smoke exhaust machine. The existing fire-fighting electric smoke exhaust machine has problems such as the fan angle cannot be adjusted, the smoke exhaust efficiency is limited, the water pressure shock lacks buffering, and the adaptability is poor, which affects the effect of fire fighting and rescue and the reliability of the equipment. The present invention provides a more efficient, flexible and safe fire-fighting electric smoke exhaust device through a fan angle adjustment mechanism and a water pressure buffer mechanism.

[0008] In order to solve the above problems, the present invention provides a hand-push fire-fighting electric smoke exhaust device, including a hand-push frame body, the hand-push frame body is movably hinged with a pump connection cavity component, the pump connection cavity component is connected to a fan body on the upper shaft, the inner end of the hand-push frame body is provided with a fan angle adjustment support mechanism, the fan angle adjustment mechanism extends forward to adjust and support the fan body, the pump connection cavity component includes three parts, including a docking cavity connected to the pump body, the side end of the docking cavity is fixedly provided with a connected buffer level cavity, and the end of the buffer level cavity away from the docking cavity is fixedly provided with a connected injection cavity. By setting the buffer level cavity in the pump connection cavity component, the problem of unstable injection that may be caused by water pressure changes in the existing equipment is effectively solved. The buffer level cavity can buffer and adjust the incoming water to prevent the sudden change of water pressure from impacting the equipment injection system, enhance the stability and injection efficiency of the device, and improve the safety and reliability of the fire extinguishing operation.

[0009] Preferably, the fan angle adjustment mechanism includes a rotating hand wheel, one end of which is connected to an adjusting screw, a lock nut seat body is fixedly provided at the inner end of the push frame body, the adjusting screw is threadedly connected to the lock nut seat body and extends forward, and a supporting top block is provided at the front end of the adjusting screw, the supporting top block contacts with the fan body and resists the fan body, and the fan angle adjustment support mechanism is provided, so that the angle of the fan body can be adjusted according to actual needs. Through the cooperation of the rotating hand wheel and the adjusting screw, the angle of the fan can be flexibly adjusted to the optimal position to adapt to fire sources of different heights and directions, which greatly improves the smoke exhaust effect and the applicability of the equipment, especially in complex and changeable fire extinguishing scenes, and can significantly enhance the effectiveness of rescue.

[0010] Preferably, the docking cavity is a columnar structure that is larger at the top and smaller at the bottom. The docking cavity comprises an interface flange. One end of the interface flange is connected to a liquid inlet cavity. A hydraulic flowmeter is provided at the upper end of the liquid inlet cavity.

[0011] Preferably, the buffer level cavity is in a conical barrel structure that is larger at the top and smaller at the bottom. The buffer level cavity comprises a connecting cavity, and one end of the connecting cavity is connected to the buffer cavity.

[0012] Preferably, the injection cavity is in the shape of a steering wheel, and comprises an injection liquid cavity, a plurality of hollow rods connected thereto are evenly distributed on the outer edge of the injection liquid cavity, and an injection atomization hole is opened at the side end.

[0013] Preferably, the caliber of the docking cavity is larger than the caliber of the injection cavity, and the caliber of the docking cavity is smaller than the caliber of the buffer level cavity. By optimizing the overall structure of the equipment and extending the service life, the present invention effectively reduces the stress concentration and wear of the equipment during use and extends the service life of the equipment by optimizing the structural design of multiple functional cavities such as the docking cavity, the buffer level cavity, and the injection cavity. At the same time, the optimized structural design also reduces the maintenance frequency and repair cost of the equipment, and improves the economy and sustainability of the equipment.

[0014] Preferably, a climbing component is provided at the lower end of the trolley frame, and the climbing component includes a rotating wheel seat provided at the front end, and a rotating wheel is movably hinged in the rotating wheel seat, and the climbing component also includes a climbing wheel seat provided at the rear end, and a climbing wheel is movably hinged in the climbing wheel seat. The present invention provides a climbing component at the lower end of the trolley frame, including a rotating wheel seat at the front end and a climbing wheel seat at the rear end, which can realize the movement of the equipment on flat ground and can also cope with the operation requirements in complex terrain and stair environments. This multifunctional mobile component design significantly improves the flexibility and stability of the equipment during fire fighting and rescue, solves the problem of difficulty in moving equipment in complex terrain in the prior art, and further improves the practicality of the equipment.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: 1. The fan angle is adjustable and has strong adaptability: The present invention is provided with a fan angle adjustment support mechanism in the hand push frame, which can adjust and support the angle of the fan, so that the fan can be adjusted according to the needs of the actual fire fighting scene, and the best smoke exhaust effect can be achieved regardless of whether the fire source is located high or low. Compared with the fixed wind tube structure in the prior art, the present invention significantly improves the adaptability and smoke exhaust effect of the equipment in complex fire fighting and rescue situations.

[0016] 2. Efficient buffer mechanism to improve smoke exhaust stability: The pump connection cavity component of the present invention includes a three-part structural design of a docking cavity, a buffer level cavity and a spray cavity, wherein the buffer level cavity can effectively buffer the incoming water flow to prevent excessive water pressure from impacting the spray system. This structural design solves the problem of the lack of an effective water pressure buffer mechanism in the water spraying operation of existing equipment, significantly improves the working stability and safety of the equipment, and can protect the internal connection components and spray components of the equipment from damage by water pressure shock, especially in a high water pressure environment, thereby extending the service life of the equipment.

[0017] 3. Smoke exhaust efficiency is significantly improved: The structural design of the present invention takes into account the comprehensive optimization of the fan angle adjustment and the smoke exhaust effect, and achieves the optimal smoke exhaust path and coverage by adjusting the fan angle, effectively improving the smoke exhaust efficiency. In addition, the pump connection cavity component includes a docking cavity, a buffer level cavity and a spray cavity. This segmented design makes the stability and flow control of the water flow more precise during the smoke exhaust and water spraying process, effectively preventing the problem of thick smoke backflow and incomplete smoke exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the hand-push fire-fighting electric smoke exhaust device of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the hand-push fire-fighting electric smoke exhaust device after adjusting the angle of the device.

[0020] Figure 3 It is a side view of the hand-push fire-fighting electric smoke exhaust device of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the pump connecting chamber parts.

[0022] Figure 5 for Figure 4 Cross-sectional view of section AA.

[0023] Figure 6 This is a schematic structural diagram of the pump connecting chamber components from another perspective.

[0024] In the figure: 1-hand push frame body, 2-pump connecting cavity component, 201-docking cavity, 202-buffer level cavity, 203-injection cavity, 204-interface flange, 205-liquid inlet cavity, 206-hydraulic flowmeter, 207-connecting cavity, 208-buffer cavity, 209-injection liquid outlet cavity, 210-hollow rod body, 211-injection atomization hole, 3-fan body, 4-fan angle adjustment support mechanism, 401-rotating hand wheel, 402-adjusting screw, 403-lock nut seat, 404-support top block, 5-climbing component, 501-rotating wheel seat, 502-rotating wheel, 503-climbing wheel seat, 504-climbing wheel. DETAILED DESCRIPTION

[0025] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

[0026] Reference Figure 1-Figure 6As shown, the present invention provides a hand-push fire-fighting electric smoke exhaust device, including a hand-push frame body 1, the hand-push frame body 1 is movably hinged with a pump connection cavity part 2, the pump connection cavity part 2 is connected to a fan body 3 on the shaft, the inner end of the hand-push frame body 1 is provided with a fan angle adjustment support mechanism 4, the fan angle adjustment mechanism 4 extends forward to adjust and support the fan body 3, the pump connection cavity part 2 includes three parts, including a docking cavity 201 connected to the pump body, the side end of the docking cavity 201 is fixedly provided with a connected buffer level cavity 202, and the end of the buffer level cavity 202 away from the docking cavity 201 is fixedly provided with a connected injection cavity 203, and the buffer level cavity 202 is provided in the pump connection cavity part 2. The problem of unstable injection that may be caused by water pressure changes in the existing equipment is effectively solved. The buffer level cavity 202 can buffer and adjust the incoming water to prevent the sudden change of water pressure from impacting the equipment injection system, enhance the stability and injection efficiency of the device, and improve the safety and reliability of the fire extinguishing operation.

[0027] Reference Figure 2 , Figure 3 As shown, the fan angle adjustment mechanism 4 includes a rotating hand wheel 401, one end of which is connected to an adjusting screw 402, a lock nut seat 403 is fixedly provided at the inner end of the push frame body 1, the adjusting screw 402 is threadedly connected in the lock nut seat 403 and extends forward, and a supporting top block 404 is provided at the front end of the adjusting screw 402, the supporting top block 404 contacts and abuts against the fan body 3, and the fan angle adjustment support mechanism 4 is provided, so that the angle of the fan body 3 can be adjusted according to actual needs. Through the cooperation of the rotating hand wheel 401 and the adjusting screw 402, the angle of the fan can be flexibly adjusted to the optimal position to adapt to fire sources of different heights and directions, which greatly improves the smoke exhaust effect and the applicability of the equipment, especially in complex and changeable fire extinguishing scenes, which can significantly enhance the effectiveness of rescue.

[0028] Reference Figure 4-Figure 6 As shown, the docking cavity 201 is a columnar structure with a larger upper part and a smaller lower part. The docking cavity 201 includes an interface flange 204 , one end of which is connected to a liquid inlet cavity 205 , and a hydraulic flowmeter 206 is provided at the upper end of the liquid inlet cavity 205 .

[0029] The buffer level cavity 202 is in a cone barrel structure that is larger at the top and smaller at the bottom. The buffer level cavity 202 includes a connecting cavity 207 , and one end of the connecting cavity 207 is connected to a buffer cavity 208 .

[0030] The injection cavity 203 is in a steering wheel-shaped structure. The injection cavity 203 includes an injection liquid cavity 209. A plurality of hollow rods 210 connected thereto are evenly distributed on the outer edge of the injection liquid cavity 209. A spray atomization hole 211 is opened at the side end.

[0031] The caliber of the docking cavity 201 is larger than the caliber of the injection cavity 203, and the caliber of the docking cavity 201 is smaller than the caliber of the buffer level cavity 202. By optimizing the overall structure of the equipment, the service life is extended. By optimizing the structural design of multiple functional cavities such as the docking cavity 201, the buffer level cavity 202, and the injection cavity 203, the present invention effectively reduces the stress concentration and wear of the equipment during use, and extends the service life of the equipment. At the same time, the optimized structural design also reduces the maintenance frequency and maintenance cost of the equipment, and improves the economy and sustainability of the equipment.

[0032] Reference Figure 1-Figure 3 As shown, the lower end of the hand-push frame 1 is provided with a climbing component 5, and the climbing component 5 includes a rotating wheel seat 501 arranged at the front end, and a rotating wheel 502 is movably hinged in the rotating wheel seat 501, and the climbing component 5 also includes a climbing wheel seat 503 arranged at the rear end, and a climbing wheel 504 is movably hinged in the climbing wheel seat 503. The present invention sets a climbing component at the lower end of the hand-push frame, including a rotating wheel seat at the front end and a climbing wheel seat at the rear end, which can not only realize the movement of the equipment on flat ground, but also cope with the operation requirements in complex terrain and stair environments. This multifunctional mobile component design significantly improves the flexibility and stability of the equipment during fire fighting and rescue, solves the problem of difficulty in moving equipment in complex terrain in the prior art, and further improves the practicality of the equipment.

[0033] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0034] The specific working process is: 1. Equipment preparation and movement: Before firefighting and rescue begins, firefighters first push the device to the fire scene. The climbing component 5 at the bottom of the trolley frame 1, through the front wheel seat 501 and the rear climbing wheel seat 503, enables the device to move smoothly, not only on flat ground, but also easily through stairs and uneven terrain, enhancing the mobility and flexibility of the equipment.

[0035] 2. Fan angle adjustment: After reaching the target position, the firefighters adjust the angle of the fan body 3 through the fan angle adjustment support mechanism 4 according to the specific location and height of the fire source. The hand wheel 401 is rotated to drive the adjustment screw 402 to rotate. The adjustment screw 402 is threadedly connected to the lock nut body 403 and moves back and forth during rotation, driving the support top block 404 to adjust the angle of the fan accordingly. The operator can adjust the fan to the best smoke exhaust angle according to the needs of the actual fire extinguishing scene to enhance the smoke exhaust effect.

[0036] 3. Start the smoke exhaust and water spraying functions: The firefighter starts the power source of the equipment to make the fan body 3 run and start exhausting smoke. At the same time, the pump is connected to the docking cavity 201 in the cavity part 2 to connect to the water source, and the water flows into the buffer level cavity 202, which is designed as a cone barrel structure with a large upper part and a small lower part, which can effectively buffer and stabilize the water flow and reduce the impact of sudden changes in water pressure on the spray cavity 203.

[0037] 4. Smoke exhaust and water spraying process: After the water flows through the buffer level cavity 202, the stable water flow enters the spray cavity 203. The spray cavity 203 is in the shape of a steering wheel. The spray liquid cavity 209 of the spray cavity 203 sprays water. The outer edge of the spray liquid cavity 209 is evenly distributed with a plurality of hollow rods 210 connected thereto. The side ends of the hollow rods are provided with spray atomization holes 211, through which water mist is evenly sprayed for fire extinguishing and cooling. Under high water pressure conditions, the buffer level cavity 202 buffers and adjusts the water pressure to ensure the stability of the spraying process, prevent the problem of unstable spraying caused by water pressure changes, and improve the safety and effect of fire extinguishing operations.

[0038] 5. End and evacuation: After the smoke exhaust and water spraying tasks are completed, the firefighters can use the trolley frame 1 and the climbing component 5 to move the equipment back to a safe area. The various components of the device can be quickly reset and stored to prepare for the next use.

[0039] Through the above process, the present invention can provide efficient and safe smoke exhaust and water spray support in complex and changeable fire extinguishing scenarios, significantly improving the overall effect of fire fighting and rescue and the practicality of the equipment.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features of the invention described herein.

Claims

1. A hand-push fire-fighting electric smoke exhaust device, comprising a hand-push frame body (1), the hand-push frame body (1) is movably hinged with a pump connection cavity component (2), the upper shaft of the pump connection cavity component (2) is connected to a fan body (3), characterized in that: A fan angle adjustment support mechanism (4) is provided at the inner end of the hand push frame body (1), and the fan angle adjustment mechanism (4) extends forward to adjust and support the fan body (3). The pump connection cavity component (2) comprises three parts, including a docking cavity (201) connected to the pump body, a connected buffer level cavity (202) is fixedly provided at the side end of the docking cavity (201), and a connected injection cavity (203) is fixedly provided at one end of the buffer level cavity (202) away from the docking cavity (201).

2. The hand-pushed electric smoke exhaust device for fire fighting according to claim 1 is characterized in that: The fan angle adjustment mechanism (4) comprises a rotating hand wheel (401), one end of the rotating hand wheel (401) is connected to an adjusting screw (402), the inner end of the push frame body (1) is fixedly provided with a lock nut seat body (403), the adjusting screw (402) is threadedly connected in the lock nut seat body (403) and extends forward, and the front end of the adjusting screw (402) is provided with a supporting top block (404), and the supporting top block (404) contacts with the fan body (3) and abuts against the fan body (3).

3. The hand-pushed electric smoke exhaust device for fire fighting according to claim 1 is characterized in that: The docking cavity (201) is in a columnar structure that is larger at the top and smaller at the bottom. The docking cavity (201) comprises an interface flange (204). One end of the interface flange (204) is connected to a liquid inlet cavity (205). A hydraulic flow meter (206) is provided at the upper end of the liquid inlet cavity (205).

4. The hand-pushed electric smoke exhaust device for fire fighting according to claim 3 is characterized in that: The buffer level cavity (202) is in the form of a cone barrel with a larger upper portion and a smaller lower portion. The buffer level cavity (202) comprises a connecting cavity (207), and one end of the connecting cavity (207) is connected to a buffer cavity (208).

5. The hand-pushed electric smoke exhaust device for fire fighting according to claim 4 is characterized in that: The injection cavity (203) is in the form of a steering wheel, and comprises an injection liquid cavity (209). The outer edge of the injection liquid cavity (209) is evenly distributed with a plurality of hollow rod bodies (210) connected thereto, and the side end is provided with an injection atomization hole (211).

6. The hand-pushed electric smoke exhaust device for fire fighting according to claim 1 or 5, characterized in that: The caliber of the docking cavity (201) is larger than the caliber of the injection cavity (203), and the caliber of the docking cavity (201) is smaller than the caliber of the buffer level cavity (202).

7. The hand-pushed electric smoke exhaust device for fire fighting according to claim 1 is characterized in that: A stair climbing component (5) is provided at the lower end of the hand-push frame body (1), the stair climbing component (5) comprising a rotating wheel seat (501) arranged at the front end, a rotating wheel (502) being movably hinged inside the rotating wheel seat (501), and the stair climbing component (5) further comprising a stair climbing wheel seat (503) arranged at the rear end, a stair climbing wheel (504) being movably hinged inside the stair climbing wheel seat (503).

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