WO2024082387A1

WO2024082387A1 - Air duct adjusting apparatus and fire-fighting blower

Info

Publication number: WO2024082387A1
Application number: PCT/CN2022/135929
Authority: WO
Inventors: 张宏; 种晋; 林伟; 刘子华; 蒋锦辉; 章晓伟
Original assignee: 宁德时代新能源科技股份有限公司
Priority date: 2022-10-21
Filing date: 2022-12-01
Publication date: 2024-04-25
Also published as: CN218236380U

Abstract

The present application relates to an air duct adjusting apparatus and a fire-fighting blower. The air duct adjusting apparatus comprises: a frame body; a telescopic mechanism arranged on the frame body and capable of extending and retracting relative to the frame body; and a locking member arranged on the telescopic mechanism and used for fixing an outlet end of an air duct. The air duct adjusting apparatus of the present application is easy to operate, it is not necessary to adjust the overall height of a fire-fighting blower by raising the blower, and the position of the locking member used for fixing the outlet end of the air duct is adjusted by the telescopic mechanism to realize independent adjustment of the height of the air duct, which simplifies the adjusting process, has high safety, and effectively adapts to different on-site use environments and usage requirements.

Description

Duct regulator and fire fan

cross reference

This application claims the priority of Chinese patent application CN202222780266.5, entitled “Air Duct Adjustment Device and Fire Fighting Fan”, filed on October 21, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the technical field of ventilation and smoke exhaust equipment, and in particular to an air duct regulating device and a fire-fighting fan.

Background technique

Fire refers to a disaster caused by burning out of control in time or space. In the new standard, fire is defined as burning out of control in time or space. Among various disasters, fire is one of the most frequent and common major disasters that threaten public safety and social development.

When a fire occurs, a large amount of toxic smoke will be generated, such as CO, CO ₂ , HCl, etc., and a large amount of heat will be released and a large amount of oxygen will be consumed. Therefore, in order to ensure the safe evacuation of personnel and facilitate fire remediation work, smoke prevention and exhaust devices are generally installed in buildings. Fire fans refer to industrial fans that can run continuously for more than 60 minutes at a high temperature of 300°C and continuously for 20 hours/time at a temperature of 100°C without damage.

Most of the existing fire-fighting fans are of an integrated structure, and the height of the air duct cannot be adjusted according to actual needs. When the operator needs to discharge the indoor smoke from the outer window through the air duct of the fire-fighting fan, the user is required to raise the fire-fighting fan as a whole, which is cumbersome to operate and has the hidden danger of incompleteness. Moreover, the above method cannot adjust the height of the air duct separately, has poor adaptability, and has great limitations in use.

Summary of the invention

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides an air duct adjustment device and a fire-fighting fan, which are easy to operate and can adjust the height of the air duct individually according to actual needs to adapt to different use environments.

In a first aspect, the present application provides an air duct regulating device, comprising:

Frame;

A telescopic mechanism, disposed on the frame and capable of telescoping relative to the frame; and

A locking piece is arranged on the telescopic mechanism and is used to fix the outlet end of the air duct.

The air duct regulating device according to the first aspect of the present application has at least the following beneficial effects:

The air duct adjustment device of the present application is provided with a telescopic mechanism that can be extended and retracted relative to the frame, and a locking piece is provided on the telescopic mechanism. The operator can pull the outlet end of the air duct to the position of the locking piece and lock the outlet end of the air duct to the locking piece, and then adjust the extension or contraction of the telescopic mechanism to achieve height adjustment of the outlet end of the air duct, thereby adjusting the outlet end of the air duct to a suitable smoke exhaust position in the on-site building to meet the on-site use requirements. The air duct adjustment device of the present application is simple to operate, and does not need to adjust the overall height of the fire-fighting fan by raising it. The position of the locking piece used to fix the outlet end of the air duct can be adjusted by the telescopic mechanism to achieve independent adjustment of the height of the air duct, simplifying the adjustment process and having high safety, and effectively adapting to different on-site use environments and use requirements.

In some embodiments, the telescopic mechanism is a telescopic rod. Through the above arrangement, the height of the outlet end of the air duct can be adjusted by simply extending or contracting the telescopic rod, thereby improving the convenience of adjusting the height of the air duct.

In some embodiments, the telescopic mechanism includes a main body section provided on the frame and a telescopic section slidably inserted into the main body section, and the main body section is provided with a locking member for locking the telescopic section. Through the above arrangement, it is ensured that the telescopic mechanism as a whole can be extended and contracted relative to the frame, and at the same time, the arrangement of the locking member also effectively ensures that the telescopic section can be locked and fixed in the adjustment position, thereby ensuring the stability of the air duct in space.

In some embodiments, the locking member is a locking hook that locks with the outer wall of the air duct. Through the above arrangement, it is convenient for operators to set a corresponding locking ring or locking tongue that cooperates with the locking hook on the outer wall of the air duct, thereby improving the convenience of fixing the outlet end of the air duct on the locking member.

In some embodiments, the frame is a tripod. By setting the frame as a tripod, the operator can set the telescopic mechanism on the tripod, and by utilizing the stabilizing function of the tripod, the telescopic mechanism and the air duct fixed on the locking member can be prevented from shaking during use, thereby ensuring the stability of the telescopic mechanism and the air duct, so that smoke can be discharged smoothly from the outlet end of the air duct.

In a second aspect, the present application provides a fire-fighting fan, comprising:

Fan body;

An air duct installed at the air outlet and/or air inlet of the fan body; and

The air duct regulating device described above.

The fire-fighting fan according to the second aspect of the present application has at least the following beneficial effects:

The fire-fighting blower of the present application, since it is equipped with the above-mentioned air duct adjusting device, also has the technical effect brought by the air duct adjusting device, that is, the operator can adjust the height of the air duct by adjusting the extension and contraction of the telescopic mechanism of the air duct adjusting device, thereby effectively adapting to different on-site use environments and usage requirements.

In some embodiments, the air duct is a hose that can be extended or contracted. By setting the air duct as a hose that can be extended or contracted, the operator can extend, contract or bend the air duct according to the on-site use environment to adapt to the use range of different areas, thereby improving the overall use function of the fire-fighting fan and further meeting the use needs of on-site operators.

In some embodiments, a first handle is provided on the outer wall of the air duct. The above arrangement facilitates the operator to grab the first handle and then pull the air duct to extend or fold the air duct to shrink, thereby improving the convenience of operating the air duct extension or shrinkage.

In some embodiments, the locking member is a lock hook that locks with the first handle. The above arrangement not only facilitates the operator to lengthen or shrink the air duct, but also allows the operator to directly hang the first handle provided on the air duct on the lock hook after stretching the air duct to the lock hook position of the air duct adjustment device, thereby completing the fixation of the air duct outlet end and further improving the convenience of adjusting the air duct height.

In some embodiments, a reinforcement ring is provided on the inner wall of the outlet end of the air duct, and the reinforcement ring is used to stabilize the shape of the outlet end of the air duct. Through the above arrangement, the outlet end of the air duct and the overall structural strength of the air duct can be strengthened, the air duct can be prevented from being sucked out due to excessive internal wind speed, and the air duct can be effectively prevented from being compressed and deformed due to the pressure difference between the inside and outside during use, thereby further ensuring the structural stability of the air duct during use.

In some embodiments, the fan body includes a housing, a driving member, and a rotating fan blade disposed in the housing, and the driving member is installed in the middle of the rotating fan blade to drive the rotating fan blade to rotate around itself. Through the above arrangement, that is, the driving member is directly disposed at the center of the rotating fan blade, so that the output end of the driving member directly drives the rotating fan blade to rotate, and in actual use, the overall exhaust efficiency of the fire fighting fan can be guaranteed to the greatest extent.

In some embodiments, a box body is further included, the fan body is installed in the box body, and a plurality of movable doors that can be rotated to open or close are provided on the outer wall of the box body, and the air duct can be extended or contracted along the length direction of the box body to extend out of the movable door or be stored in the box body. Through the above arrangement, the air duct can be folded and stored in the box body when not in use, so as to prevent external dust and other impurities from entering the fan body through the air duct and affecting the function of the fan body. At the same time, the arrangement of the box body also improves the integrity of the fire-fighting fan, and facilitates the operator to transfer and transport the fire-fighting fan as a whole. In addition, it is also convenient for the operator to rotate the movable door open to observe the operation status of the fan body and the air duct in the box body in real time.

In some embodiments, the bottom of the box is provided with an anti-scratch structure, which can effectively prevent the air duct from directly rubbing against the box during the stretching or folding process, thereby preventing the air duct from being damaged by scratches.

In some embodiments, at least one storage box or at least one storage board is provided in the box body. The provision of the storage box can facilitate the operator to store spare firefighting tools and firefighting supplies in the storage box, so that the operator can quickly take out the corresponding firefighting tools and firefighting supplies when performing firefighting work.

In some embodiments, the box body is further provided with a second handle, which further facilitates the operator to transfer the fire fan as a whole.

The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

BRIEF DESCRIPTION OF THE DRAWINGS

Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

FIG1 is a schematic structural diagram of an air duct regulating device according to an embodiment of the present application;

FIG2 is a schematic diagram of the coordination structure between the air duct regulating device and the air duct according to an embodiment of the present application;

FIG3 is a partial enlarged view of point A in FIG2 ;

FIG4 is another schematic structural diagram of the air duct regulating device according to an embodiment of the present application;

FIG5 is a schematic structural diagram of a fire-fighting fan according to an embodiment of the present application;

FIG6 is another schematic structural diagram of a fire-fighting fan according to an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of the box body according to an embodiment of the present application.

Explanation of the reference numerals: frame 100; mounting slot 110; telescopic mechanism 200; main section 210; telescopic section 220; locking member 230; locking member 300; fan body 400; air duct 500; first handle 510; reinforcement ring 520; box 600; anti-scratch structure 610; storage box 620; storage plate 630; second handle 640; movable door 650; moving wheel 660; winding mechanism 670; power plug 680.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

In the ventilation and smoke exhaust equipment industry, fire fans are a commonly used ventilation equipment. They can be widely used in various fields such as industrial and mining, buildings, oil and gas field mining, offshore drilling platforms, mines, field operations, military, etc., and have good ventilation and smoke exhaust effects.

Existing fire fans are usually integrated structures, and the height of the air duct cannot be adjusted according to actual needs. When the operator needs to discharge the indoor smoke from the outer window through the air duct of the fire fan, the user needs to raise the fire fan as a whole, which is cumbersome to operate and has the hidden danger of incompleteness. Moreover, the above method cannot adjust the height of the air duct separately, has poor adaptability, and has great limitations in use.

Moreover, for the split-type fire-fighting fans available on the market, although the air duct and the fire-fighting fan body are separate and independent, when the operator needs to install the outlet end of the air duct at a higher position such as indoor or outdoor windows, the operator still needs to arrange corresponding raising equipment on site to adjust the position of the outlet end of the air duct to the required position. Such raising equipment is usually a bulky lift, which is cumbersome to operate and affects the efficiency of on-site firefighting and rescue. In addition, the outlet end of the air duct also lacks corresponding fixation, which affects the discharge of smoke from the outlet end of the air duct.

In order to solve the above-mentioned problem that the air duct height cannot be adjusted according to the on-site environment, referring to Figures 1 and 2, the present application provides an air duct adjustment device, which includes a frame 100, a telescopic mechanism 200 and a locking member 300.

The telescopic mechanism 200 is disposed on the frame 100 and can be telescoped relative to the frame 100 . The locking member 300 is disposed on the telescopic mechanism 200 . The locking member 300 is used to fix the outlet end of the air duct 500 .

It should be noted that the frame 100 can be a support plate, a support frame, or other structural member used to bear pressure, the telescopic mechanism 200 can be a telescopic structure such as a telescopic rod or a telescopic frame that can extend and contract relative to the frame 100, and the locking member 300 can be a hook for hooking the outlet end of the air duct 500, or a clamping structure for clamping the outlet end of the air duct 500.

The telescopic mechanism 200 can be detachably arranged on the frame 100 by means of bolt fixing or the like. Similarly, the locking piece 300 can also be detachably arranged on the telescopic mechanism 200 by means of bolt fixing or the like. This facilitates the overall assembly and disassembly of the air duct adjusting device, and further facilitates the operator to take out and store the frame 100, the telescopic mechanism 200 and the locking piece 300 separately for easy carrying.

In addition, it should be noted that the air duct adjustment device of the present application is preferably used for adjusting the position of a flexible and bendable air duct, that is, the air duct 500 is a flexible tube, that is, the above-mentioned air duct 500 can be bent, rolled or telescoped without being restricted by the structure of the fan body, so that the operator can pull the outlet end of the air duct 500 to the locking piece 300 located on the telescopic mechanism 200.

The air duct adjustment device of the present application is provided with a telescopic mechanism 200 that can be extended and retracted relative to the frame 100, and a locking piece 300 is provided on the telescopic mechanism 200. The operator can pull the outlet end of the air duct 500 to the position of the locking piece 300 and lock the outlet end of the air duct 500 to the locking piece 300, and then adjust the extension or contraction of the telescopic mechanism 200 to achieve height adjustment of the outlet end of the air duct 500, so as to adjust the outlet end of the air duct 500 to a suitable smoke exhaust position in the on-site building to meet the on-site usage requirements.

The air duct adjusting device of the present application is simple to operate. There is no need to adjust the overall height of the fire-fighting blower by raising it. By adjusting the position of the locking piece 300 for fixing the outlet end of the air duct 500 through the telescopic mechanism 200, the height of the air duct 500 can be independently adjusted. The locking of the outlet end of the air duct 500 by the locking piece 300 also ensures the stability of the air duct 500 during use. The entire air duct adjusting device simplifies the process of adjusting the height of the air duct 500, has high safety, and can effectively adapt to different on-site use environments and usage requirements.

Referring again to Figures 1, 2 and 3, in some embodiments of the present application, the telescopic mechanism 200 is a telescopic rod. Specifically, the telescopic rod has a plurality of telescopic sections, and two adjacent telescopic sections can be locked or released by a corresponding self-locking structure, and the self-locking structure can be an inner rotation locking structure or an outer locking structure, which is not specifically limited.

The locking piece 300 is arranged on the telescopic joint at the uppermost end of the telescopic rod. The locking piece 300 can be rotatably connected to the telescopic joint through a hinge. A corresponding locking device is provided between the locking piece 300 and the telescopic joint. The locking device can be a fixing piece such as a bolt. Through the above arrangement, not only is it convenient to disassemble and remove the locking piece 300, but it also enables the locking piece 300 to fine-tune a certain angle relative to the telescopic rod, thereby adjusting the angle of the outlet end of the air duct 500, and further meeting the location requirements of the ventilation and smoke exhaust outlets in the on-site environment.

The present application sets the telescopic mechanism 200 as a telescopic rod, ensuring that the telescopic mechanism 200 has a sufficient length adjustment range, so that the operator can adjust the height of the outlet end of the air duct 500 by simply extending or contracting the telescopic rod, thereby improving the convenience of adjusting the height of the air duct 500. In addition, the structure of the telescopic mechanism 200 is effectively simplified, making it convenient for the operator to store and carry the telescopic mechanism 200 as a whole.

Referring again to FIG. 1 and FIG. 4 , in some embodiments of the present application, the telescopic mechanism 200 includes a main body section 210 disposed on the frame 100 and a telescopic section 220 slidably inserted in the main body section 210 , and a locking member 230 for locking the telescopic section 220 is provided on the main body section 210 .

Specifically, the main section 210 and the telescopic section 220 can be round tube or square tube structures, the frame 100 is a support plate, the upper end of the support plate is provided with at least two mounting grooves 110, the bottom end of the main section 210 is detachably inserted in the mounting groove 110, and can be fixed by bolts, etc., the telescopic section 220 is slidably inserted in the main section 210 and locked by the locking member 230, the locking member 230 is preferably a locking bolt knob, and the main section 210 is provided with a bolt hole that cooperates with the locking bolt knob, so as to adjust the relative position of the telescopic section 220 and the main section 210. It can be understood that the locking member 300 is arranged at the upper end of the telescopic section 220, and the height adjustment of the air outlet end of the air duct 500 fixed on the locking member 230 is realized by sliding the telescopic section 220 up and down relative to the main section 210.

It should be noted that by setting at least two installation grooves 110 on the support plate, multiple telescopic mechanisms 200 can be adapted, and the operator can selectively set multiple telescopic mechanisms 200 and locking members 300 for adjusting and fixing the air outlet end of the air duct 500 according to the on-site conditions.

The present application ensures that the telescopic mechanism 200 as a whole can extend and contract relative to the frame 100 by configuring the telescopic mechanism 200 to be composed of a main section 210, a telescopic section 220 and a locking member 230 that cooperate with each other, thereby achieving the function of adjusting the height of the air outlet end of the air duct 500, while facilitating the assembly and disassembly of the telescopic mechanism 200, and further facilitating the operator to store and carry the telescopic mechanism 200.

Referring again to FIG. 3 , in some embodiments of the present application, the locking member 300 is a locking hook that locks with the outer wall of the air duct 500 .

Specifically, the locking hook is preferably a round rod or square rod with a hook portion, and the outer wall of the outlet end of the air duct 500 can be provided with a corresponding locking ring or locking tongue that cooperates with the locking hook, so that the outlet end of the air duct 500 can be fixed by hanging the locking ring or locking tongue on the outer wall of the air duct 500 on the locking hook.

The present application simplifies the structure of the locking member 300 by configuring the locking member 300 as a locking hook, thereby improving the convenience for operators to fix the outlet end of the air duct 500 on the locking member 300 .

Referring again to FIG. 1 and FIG. 2 , in some embodiments of the present application, the frame 100 is a tripod.

Specifically, the tripod is preferably a telescopic tripod, which further enhances the telescopic function of the telescopic mechanism 200. In this embodiment, the telescopic mechanism 200 corresponds to a telescopic rod, the bottom end of which is detachably arranged at the mounting position on the top of the tripod and maintained in a vertical fixed state, ensuring the stability of the telescopic mechanism 200.

It is not difficult to understand that, in the present application, by setting the frame 100 as a tripod, the operator can set the telescopic mechanism 200 on the tripod. By utilizing the stabilizing function of the tripod, the telescopic mechanism 200 and the air duct 500 fixed on the locking member 300 can be prevented from shaking during use, thereby ensuring the stability of the telescopic mechanism 200 and the air duct 500, so that the smoke can be smoothly discharged from the outlet end of the air duct 500.

5 and 6 , the present application further provides a fire-fighting fan, which includes a fan body 400 , an air duct 500 , and the above-mentioned air duct adjustment device. The air duct 500 is installed at the air outlet and/or air inlet of the fan body 400 , and the locking member 300 is used to fix the outlet of the air duct 500 .

It should be noted that in the present application, the air duct 500 may have two, namely, an exhaust air duct and an air supply air duct. One end of the exhaust air duct is mounted on the air inlet end of the fan body 400, and the other end is used to face the smoke reception and exhaust environment. One end of the air supply air duct is mounted on the air outlet end of the fan body 400, and the other end can be fixed on the locking piece 300 on the air duct adjustment device according to the site requirements, so as to discharge the smoke. The exhaust air duct and the air supply air duct can be switched between the exhaust function and the air supply function according to the site operation requirements.

Obviously, the fire-fighting blower of the present application, since it has the above-mentioned air duct adjusting device, also has the technical effect brought by the air duct adjusting device, that is, the operator can adjust the height of the air duct 500 by adjusting the extension and contraction of the telescopic mechanism 200 of the air duct adjusting device, thereby effectively adapting to different on-site use environments and usage requirements.

5 and 6 , in some embodiments of the present application, the air duct 500 is a hose that can be extended or contracted.

Specifically, the air duct 500 is preferably a corrugated tube, that is, the air duct 500 can be bent, rolled or stretched without being restricted by the structure of the fan body 400, so that the operator can stretch the outlet end of the air duct 500 to the locking piece 300 located on the telescopic mechanism 200. The air duct 500 is detachably mounted on the air outlet end and/or the air inlet end of the fan body 400, so that the operator can disassemble, assemble and replace the air duct 500.

It is not difficult to understand that the fire-fighting blower of the present application configures the air duct 500 as a hose that can be extended or contracted. The operator can extend, contract or bend the air duct 500 according to the on-site use environment to adapt to the use range of different area sizes, thereby improving the overall use function of the fire-fighting blower and further meeting the use needs of on-site operators.

5 and 6 , in some embodiments of the present application, a first handle 510 is disposed on the outer wall of the air duct 500 .

Specifically, the first handle 510 is preferably a U-shaped ring, which is convenient for operators to hold. The first handle 510 can be fixed on the outer wall of the air duct 500 by welding.

It is not difficult to understand that, through the above arrangement, it is convenient for the operator to grab the first handle 510 and then pull the air duct 500 to extend or fold and shrink the air duct 500, thereby improving the convenience of operating the stretching or shrinking of the air duct 500.

5 and 6 , in some embodiments of the present application, the locking member 300 is a locking hook that is locked with the first handle 510 .

Obviously, the above arrangement not only makes it convenient for the operator to lengthen or shrink the air duct 500, but also after the operator stretches the air duct 500 to the locking hook position of the air duct adjustment device, the operator directly hangs the first handle 510 set on the air duct 500 on the locking hook to complete the fixation of the outlet end of the air duct 500, thereby further improving the convenience of adjusting the height of the air duct 500.

5 and 6 , in some embodiments of the present application, a reinforcement ring 520 is provided on the inner wall of the outlet end of the air duct 500 , and the reinforcement ring 520 is used to stabilize the shape of the outlet end of the air duct 500 .

Specifically, the reinforcement ring 520 is preferably a steel ring embedded in the inner wall of the outlet end of the air duct 500, so as to improve the structural strength of the outlet end of the air duct 500 and prevent the outlet end of the air duct 500 from being deformed during use. In addition, the first handle 510 can be fixedly set on the outer wall of the reinforcement ring 520, so that the first handle 510 can contact the flexible outer wall of the air duct 500, so that the operator can pull the first handle 510 on the reinforcement ring 520 to stretch or shrink the air duct.

Of course, there may be multiple reinforcement rings 520 , which are spaced apart on the inner wall of the air duct 500 , and the outer peripheral arms of the reinforcement rings 520 are interconnected with the inner peripheral wall of the air duct 500 , so as to ensure the overall structural stability of the air duct 500 .

Obviously, the present application provides a reinforcement ring 520 on the inner wall of the outlet end of the air duct 500, which can not only strengthen the outlet end of the air duct 500 and the overall structural strength of the air duct, but also prevent the outlet end of the air duct 500 from being sucked in due to excessive internal wind speed, and effectively prevent the air duct 500 from being compressed and deformed due to the internal and external pressure difference during use, further ensuring the structural stability of the air duct 500 during use, and ensuring that the smoke in the air duct 500 can be discharged smoothly.

5 and 6 , in some embodiments of the present application, the fan body 400 includes a casing, a driving member, and rotating blades disposed in the casing, and the driving member is installed in the middle of the rotating blades to drive the rotating blades to rotate around themselves.

Specifically, the casing is in the shape of a shell that is through from left to right, preferably in the shape of a circular tube, and the two ends of the casing are open or the two ends of the rotating fan blades are respectively the air outlet and/or air inlet of the fan body 400, and the rotating fan blades are axial flow fan blades. The driving member is a driving motor, and the driving member is directly installed at the center of the rotating fan blade. The air inlet end of the air duct 500 is sleeved on the rotating fan blade or the opening end of the casing.

In addition, it should be noted that a corresponding power supply mechanism and a winding mechanism 670 are installed on the casing. The power supply mechanism is specifically a PCB control board. The power supply mechanism is connected to the drive motor in the middle of the rotating fan blade to control the opening and closing of the rotating fan blade. The power supply mechanism is connected to the winding mechanism 670 through a power cord. The power cord is connected to an external power source through a power plug 680 thereon to realize power supply. The winding mechanism is preferably a winding reel, which is used to store or output the power cord of the power supply mechanism.

It should be noted that in the present application, the drive motor is directly arranged in the middle of the rotating fan blades, so that the output end of the drive motor directly drives the rotating fan blades to rotate. In actual use, the overall ventilation and smoke exhaust efficiency of the fire-fighting fan can be guaranteed to the greatest extent.

At the same time, most of the driving motors in the fire-fighting fans currently on the market need to use a corresponding belt drive mechanism or other indirect transmission mechanism to realize the rotational drive of the fan's rotating blades. During the actual use of this type of fire-fighting fans, when a large fire occurs or there is too much smoke in the use environment, since the driving motor needs to drive the rotating blades to rotate through the indirect transmission mechanism, the smoke in the air duct 500, the rotating blades and the transmission mechanism cannot be completely discharged in a short period of time. Over a period of time, the corresponding transmission mechanism will generate a relatively high temperature, causing the transmission mechanism to suffer structural damage due to excessive temperature, affecting the normal smoke exhaust function and service life of the fire-fighting fan, and causing inconvenience to the smoke exhaust operation in the on-site environment.

The fire-fighting fan of the present application directly arranges the driving motor in the middle of the rotating fan blades, so that the output end of the driving motor directly drives the rotating fan blades to rotate. At the same time, by arranging the rotating fan blades in the casing, the lag transmission effect of the traditional indirect transmission mechanism is eliminated. The faster wind speed in the casing and the air duct 500 during the use of the fire-fighting fan can be used to achieve real-time cooling of the casing and the rotating fan blades, effectively ensuring that the overall temperature of the fan body 400 is stably in a low or medium temperature state, avoiding structural damage to the fan body 400 due to excessive temperature, and ensuring the overall structural stability of the fire-fighting fan.

In addition, a wind direction switching button is provided on the casing, and the wind direction switching button signal is connected to the power supply mechanism to control the forward and reverse rotation of the drive motor, so as to switch the supply or exhaust wind direction of the fan body 400, that is, the air outlet end of the fan body 400 is switched to the exhaust port or the air supply port, and the corresponding air inlet end is switched to the supply port or the exhaust port, which is convenient for the operator to adjust the ventilation direction of the fire-fighting fan according to the on-site operation requirements.

Referring to Figures 6 and 7, in some embodiments of the present application, the fire-fighting blower of the present application also includes a box body 600, the blower body 400 is installed in the box body 600, and a plurality of movable doors 650 that can be rotated to open or close are provided on the outer wall of the box body 600, and the air duct 500 can extend or contract along the length direction of the box body 600 so as to extend out of the movable door 650 or be stored in the box body 600.

It is understandable that a corresponding cavity is formed inside the box 600, and both left and right ends of the box 600 have movable doors 650 that can be rotated to open or close, so as to ensure the air extraction and air supply functions of the left and right ends of the fan body 400. At the same time, multiple movable doors 650 are also arranged at intervals at the front and rear ends of the box 600, and the operator can selectively open or close one or more of the movable doors 650 according to the use requirements.

In addition, the operator can also disassemble the air duct adjustment device as a whole, and then store the corresponding frame 100 , the telescopic mechanism 200 and the locking member 300 in the box 600 .

Obviously, the above arrangement enables the air duct 500 to be folded and stored in the box 600 when not in use, thereby preventing external dust and other impurities from entering the fan body 400 through the air duct 500 and affecting the function of the fan body 400; when it is needed, the operator can open the movable doors 650 at the left and right ends of the box 600, and then pull out the air duct 500 and fix it to the air duct adjustment device.

At the same time, the setting of the box 600 also improves the integrity of the fire-fighting fan, and facilitates the operator to transfer and transport the fire-fighting fan as a whole. In addition, it is also convenient for the operator to rotate and open the movable door 650 to observe the operating conditions of the fan body 400 and the air duct 500 in the box 600 in real time.

Of course, in some embodiments of the present application, referring to FIG. 5 , FIG. 6 and FIG. 7 , a plurality of moving wheels 660 are provided at the bottom end of the box body 600 .

Specifically, the moving wheels 660 are preferably self-locking universal wheels or self-locking rollers, and there are four moving wheels 660, which are respectively arranged at the four corners of the bottom of the box body 600 to ensure the movement stability of the box body 600 and the fire-fighting fan. It is not difficult to understand that the setting of the moving wheels 660 can further facilitate the operator to move and transfer the fire-fighting fan as a whole.

5 and 6 , in some embodiments of the present application, a scratch-resistant structure 610 is provided at the bottom of the box 600 .

Specifically, the anti-scratch structure 610 is an anti-scratch plate, an anti-scratch film or a smooth material plate. The bottom of the box 600 is provided with an anti-scratch structure at the installation position of the air duct 500 at both ends of the fan body 400. The air duct 500 can slide along the surface of the anti-scratch structure 610 during the pulling out and contraction process to avoid direct friction contact with the box 600, thereby preventing the air duct 500 from being scratched and damaged.

5 and 6 , in some embodiments of the present application, at least one storage box 620 or at least one storage board 630 is disposed in the box body 600 .

Specifically, the storage box 620 is preferably a groove, and the storage box 620 can be arranged on the inner wall of the movable door 650. The storage plate 630 can be arranged on the fan body 400.

It is not difficult to understand that, through the arrangement of the storage box 620 and the storage board 630, it is convenient for the operator to store spare firefighting tools and firefighting materials in the storage box 620, so that the operator can quickly take out the corresponding firefighting tools and firefighting materials when performing firefighting work. At the same time, the operator can also disassemble the air duct adjustment device as a whole, and then store the corresponding frame 100, telescopic mechanism 200 and locking member 300 in the storage box 620 or place it on the storage board 630, so as to ensure the integrity and functionality of the firefighting fan, and also facilitate the operator to take out the corresponding firefighting tools and firefighting materials in time according to the needs of the site, so as to improve the efficiency of firefighting smoke exhaust.

Referring again to FIG. 6 and FIG. 7 , in some embodiments of the present application, a second handle 640 is further provided on the box body 600 to further facilitate the operator to transfer the fire-fighting fan as a whole.

According to some embodiments of the present application, referring to FIGS. 1 to 4 , the present application provides an air duct adjustment device, comprising a frame 100, a telescopic mechanism 200, and a locking member 300. The telescopic mechanism 200 is disposed on the frame 100 and can be telescoped relative to the frame 100, the locking member 300 is disposed on the telescopic mechanism 200, and the locking member 300 is used to fix the outlet end of the air duct 500.

According to some embodiments of the present application, referring to Figures 5 to 7, the present application further provides a fire-fighting fan, which includes a fan body 400, an air duct 500, and the above-mentioned air duct adjustment device. The air duct 500 is installed at the air outlet and/or air inlet end of the fan body 400, and the locking member 300 is used to fix the outlet end of the air duct 500.

The fire-fighting blower of the present application, since it is equipped with the above-mentioned air duct adjusting device, also has the technical effect brought by the air duct adjusting device, that is, the operator can adjust the height of the air duct 500 by adjusting the extension and contraction of the telescopic mechanism 200 of the air duct adjusting device, thereby effectively adapting to different on-site use environments and use requirements.

In addition, it should be noted that the fire-fighting fan of the present application is not limited to the field of fire smoke exhaust, but can also be used in other ventilation and air supply equipment technical fields without specific limitation.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

An air duct regulating device, comprising:

Frame;

A telescopic mechanism, disposed on the frame and capable of telescoping relative to the frame; and

A locking piece is arranged on the telescopic mechanism and is used to fix the outlet end of the air duct.
The air duct regulating device according to claim 1, wherein the telescopic mechanism is a telescopic rod.
According to the air duct regulating device according to claim 1 or 2, wherein the telescopic mechanism comprises a main body section arranged on the frame and a telescopic section slidably inserted in the main body section, and the main body section is provided with a locking member for locking the telescopic section.
The air duct adjusting device according to any one of claims 1 to 3, wherein the locking member is a locking hook that locks with the outer wall of the air duct.
According to any one of claims 1 to 4, the frame is a tripod.
A fire-fighting fan, comprising:

Fan body;

An air duct installed at the air outlet and/or air inlet of the fan body; and

An air duct regulating device as claimed in any one of claims 1 to 5.
The fire-fighting blower according to claim 6, wherein the air duct is a hose that can be extended or contracted.
The fire-fighting blower according to claim 7, wherein a first handle is provided on the outer wall of the air duct.
The fire-fighting blower according to claim 8, wherein the locking member is a locking hook that locks with the first handle.
The fire-fighting blower according to any one of claims 6 to 8, wherein a reinforcement ring is provided on the inner wall of the outlet end of the air duct, and the reinforcement ring is used to stabilize the shape of the outlet end of the air duct.
According to any one of claims 6 to 8, the fire fighting blower body comprises a casing, a driving member and a rotating fan blade arranged in the casing, and the driving member is installed in the middle of the rotating fan blade to drive the rotating fan blade to rotate around itself.
The fire-fighting blower according to any one of claims 6 to 8, further comprising a box body, wherein the blower body is installed in the box body, and a plurality of movable doors that can be rotated to open or close are provided on the outer wall of the box body, and the air duct can be extended or contracted along the length direction of the box body to extend out of the movable door or be received in the box body.
The fire-fighting blower according to claim 12, wherein a scratch-proof structure is provided at the bottom of the box body.
The fire-fighting blower according to claim 12, wherein at least one storage box or at least one storage board is provided in the box body.
The fire-fighting blower according to claim 12, wherein a second handle is also provided on the box body.