Water mist generating device for fire rescue

By designing a water mist generation device for fire rescue, the rotating component is used to drive the water storage body to rotate to form a 360° water mist coverage, the problems of fixed water shooting direction and limited range of traditional fire water guns are solved, and rapid and safe fire treatment is achieved.

CN222304667UActive Publication Date: 2025-01-07SHANXI HONGAN TECH CO LTD +1
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Patent Information

Application Number
CN202420810108.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-18
Publication Date
2025-01-07
Estimated Expiration
2034-04-18

AI Technical Summary

Technical Problem

Traditional fire water guns require firefighters to operate with handheld operations, with a single fixed direction of water injection and a limited range, so they cannot adapt to specific fire scenes such as the fire source being difficult to approach.

Method used

A water mist generation device for fire rescue is designed, including water storage body, external linkage and rotating component. It is connected to the external water transport device through the external linkage. The rotating component drives the water storage body to rotate, forming a 360° water mist covering effect, which is suitable for Fire objects that are not affected by high-pressure DC water.

Benefits of technology

No need for handheld firefighters, it can quickly throw into the fire, realize the fire extinguishing of covered jet water mist, and improve the safety and scope of application of firefighting operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a water mist generating device for fire rescue. The water mist generating device comprises a water storage body, an external connecting piece and a rotating assembly, specifically, a water storage cavity is formed in the water storage body, a water inlet is formed in one end of the water storage body, the water storage cavity communicates with the output end of the external connecting piece through the water inlet, and the input end of the external connecting piece is used for communicating with an external water conveying device; one or more water outlet holes are formed in the water storage body, and the water storage cavity is communicated with the outside through the water outlet holes; the rotating assembly is in driving connection with the water storage body and is used for driving the water storage body to rotate by taking the external connecting piece as a rotating center shaft. According to the device, water mist covering type fire extinguishing can be achieved, handheld operation of firefighters is not needed, the fire extinguishing range is large, the device is thrown into a fire scene during use, the firefighters do not need to enter the fire scene, and the safety of fire fighting operation is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of fire emergency rescue, in particular to a water mist generating device for fire rescue. Background Art

[0002] When a fire occurs, fire rescue and water extinguishing operations need to be carried out. The most effective way may be to spray fire water directly at the fire source. However, there are various types of fires. Traditional fire hoses often need to be operated by firefighters, and the water spraying direction is fixed and the range is limited. For certain specific fire scenarios, such as when the fire source is difficult to approach, the fire source cannot be directly hit by direct current water, and the fire object is not suitable for high-pressure direct current water impact, traditional direct current or blooming fire hoses are not suitable.

[0003] In summary, there is currently no fire extinguishing device that does not require handheld operation by firefighters and can be thrown into the fire scene to spray water mist in a covering manner when used. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fire rescue water mist generating device, the specific technical solution is as follows:

[0005] The utility model provides a water mist generating device for fire rescue, comprising: a water storage body, an external connection part and a rotating assembly;

[0006] The water storage body has a water storage cavity inside, and a water inlet is opened at one end of the water storage body. The water storage cavity is connected to the output end of the external connection part through the water inlet, and the input end of the external connection part is used to connect to an external water supply device;

[0007] One or more water outlet holes are provided on the water storage body, and the water storage cavity is connected to the outside world through the water outlet holes; the rotating component is driven to connect to the water storage body, and the rotating component is used to drive the water storage body to rotate with the external connection part as the rotation center axis.

[0008] In a specific embodiment, the rotating assembly includes: a driving member, an outer fixed ring and an inner rotating ring coaxially arranged with the outer connecting member;

[0009] The outer fixing ring is sleeved on the outside of the inner rotating ring and is rotatably connected to the inner rotating ring. One end of the outer fixing ring is detachably connected to the output end of the external connecting member. The end of the inner rotating ring away from the external connecting member is connected to the water inlet, so that the water storage chamber is connected to the output end of the external connecting member after passing through the water inlet, the inner rotating ring and the outer fixing ring; the driving member is drivingly connected to the inner rotating ring, and the driving member is used to drive the inner rotating ring to rotate around its central axis relative to the outer fixing ring, thereby causing the inner rotating ring to drive the water storage body to rotate synchronously.

[0010] In a specific embodiment, the driving member includes an impeller, an impeller fixing pin and a bearing;

[0011] The impeller includes a wheel shaft and a plurality of blades, wherein the wheel shaft and the plurality of blades are both arranged in the inner rotating circle, the wheel shaft is coaxially arranged with the inner rotating circle, and the plurality of blades are arranged on the side wall of the wheel shaft at intervals along the circumferential direction; the wheel shaft is provided with a through shaft hole in the radial direction;

[0012] The bearing is arranged between the outer fixed ring and the inner rotating ring, the outer ring of the bearing is connected to the outer fixed ring, and the inner ring of the bearing is connected to the inner rotating ring; a pin hole corresponding to the shaft hole is opened on the side wall of the inner rotating ring, and the impeller fixing pin passes through the pin hole and the shaft hole and is respectively connected to the inner ring of the bearing at both ends.

[0013] In a specific embodiment, a first limiting groove corresponding to the bearing is circumferentially opened on the inner wall of the outer fixed ring, and a second limiting groove corresponding to the bearing is circumferentially opened on the outer wall of the inner rotating ring; the axial position of the bearing is fixed by the bearing abutting against the side walls of the first limiting groove and the second limiting groove.

[0014] In a specific embodiment, a first retaining ring groove is provided on the inner wall of the outer fixed ring, and a second retaining ring groove is provided on the outer wall of the inner rotating ring; the first retaining ring groove and the second retaining ring groove are located on different sides of the bearing in the axial direction; retaining rings are provided in both the first retaining ring groove and the second retaining ring groove, and the retaining rings abut against the bearing to fix the axial position of the bearing.

[0015] In a specific embodiment, a protective cage for protecting the water storage body is further included. The protective cage surrounds the water storage body, and one end of the protective cage is detachably connected to the outer fixing ring or the external connecting piece.

[0016] In a specific embodiment, the protective cage includes a plurality of longitudinal curved rods and a plurality of transverse curved rods, and the longitudinal curved rods and the transverse curved rods are fixedly connected to each other to form a spherical cage structure; the spherical cage structure surrounds the water storage body, and one end is detachably connected to the outer fixing ring or the external connecting part.

[0017] In a specific embodiment, the protective cage includes a first cage body and a second cage body with symmetrical structures; one end of the first cage body and the second cage body are rotatably connected by a rotating shaft, and the other end of the first cage body and the second cage body both have fixing parts, and the fixing parts of the two are detachably connected by fasteners, and the fixing parts of the two are snapped onto the outer fixing ring.

[0018] Furthermore, the first cage body and the second cage body each include a fixing plate, and the rotating shaft includes a first shaft body and a second shaft body that are coaxially arranged and independent of each other;

[0019] One end of the first cage away from the fixing member is fixedly connected to the first shaft through the fixing plate, and one end of the second cage away from the fixing member is fixedly connected to the second shaft through the fixing plate.

[0020] In a specific embodiment, the water storage body is in any one of a spherical, cylindrical, conical, and cubic shape.

[0021] The utility model has at least the following beneficial effects:

[0022] (1) The utility model is provided with an external connection piece, which can be quickly connected to an external water delivery device, and is convenient and flexible to operate.

[0023] (2) The utility model can be thrown into a fire scene that is difficult for firefighters to approach or enter, so as to quickly exhaust smoke, reduce temperature and extinguish fire. It has a wide range of applications and does not require firefighters to hold it, thereby improving the safety of firefighting operations.

[0024] (3) The utility model drives the water storage body to rotate through a rotating assembly, so that the rotating water storage body can emit water mist from the water outlet, and can protect fire objects that are not suitable for the impact of high-pressure direct current water by covering them with water mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic cross-sectional view of the overall structure of the utility model;

[0028] Figure 3 It is a schematic cross-sectional view of the structure of the rotating assembly in one embodiment of the present utility model;

[0029] Figure 4 This is a schematic cross-sectional view of the structure of the outer fixing ring of the present invention;

[0030] Figure 5 This is a schematic structural diagram of the impeller of the present utility model;

[0031] Figure 6 This is a schematic cross-sectional view of the structure of the inner rotating ring of the present invention;

[0032] Figure 7 This is a schematic structural diagram of the water storage body of the present utility model;

[0033] Figure 8 This is a structural diagram of the protective cage in the utility model in a buckled state;

[0034] Figure 9 This is a structural diagram of the protective cage in the utility model in an open state;

[0035] Figure 10 This is a schematic diagram of the overall structure disassembly of the utility model.

[0036] Reference numerals:

[0037] 1-water storage body; 11-water storage chamber; 12-water inlet; 13-water outlet; 14-high temperature resistant layer; 2-external connection parts; 3-rotating assembly; 31-driving part; 311-impeller; 3111-axle; 3112-blade; 312-impeller fixing pin; 313-bearing; 32-outer fixing ring; 321-first limiting groove; 322-first retaining spring groove; 323-internal thread structure; 33-inner rotating ring; 331-second limiting groove; 332-second retaining spring groove; 4-axle hole; 5-pin hole; 6-retaining spring; 7-protective cage; 71-first cage body; 72-second cage body; 701-longitudinal bent rod; 702-transverse bent rod; 703-fixing part; 704-fastener; 705-fixing plate; 8-rotating shaft; 81-first shaft body; 82-second shaft body. DETAILED DESCRIPTION

[0038] Various embodiments of the present invention will be described more fully below. The present invention can have various embodiments, and modifications and variations can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather that the present invention should be construed to encompass all modifications, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0039] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0040] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0041] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used to distinguish one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0042] It should be noted that, in this utility model, unless otherwise specified or defined, terms such as "installation," "connection," and "fixation" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0043] This utility model addresses the issues of traditional fire hoses, which require firefighters to operate them manually, have a fixed, single direction of discharge, a limited range, and are incapable of responding to specific fire scenarios, such as inaccessible fire sources. This utility model proposes a water mist generating device for firefighting and rescue. This device, which does not require firefighters to operate it manually, can be thrown into a fire scene to automatically generate water mist. This mist-based blanket firefighting method is convenient and quick, reducing safety risks for firefighters. The following describes a specific embodiment of this utility model in detail.

[0044] Please refer to Figure 1 and Figure 2 The utility model provides a water mist generating device for fire rescue, comprising: a water storage body 1, an external connection part 2 and a rotating component 3.

[0045] Specifically, water storage body 1 has a water storage chamber 11 within it. A water inlet 12 is provided at one end of water storage body 1. Water storage chamber 11 is connected to the output end of external connection member 2 through water inlet 12. The input end of external connection member 2 is used to connect to an external water supply device. Water storage body 1 is provided with one or more water outlets 13, through which water storage chamber 11 is connected to the outside world. A rotating assembly 3 is connected to water storage body 1 and is used to rotate water storage body 1 about external connection member 2.

[0046] The principle of this utility model is as follows: when in use, the input end of the external connection member 2 is connected to an external water supply device (such as a fire hose from a fire hydrant). High-pressure firefighting water from the external water supply device enters the water storage chamber 11 of the water storage body 1 through the external connection member 2 and the water inlet 12 of the water storage body 1. The rotating assembly 3 is activated, driving the water storage body 1 to rotate about the external connection member 2 as the central axis of rotation. The high-pressure firefighting water in the water storage chamber 11 is ejected from the water outlet 13. Under the action of the tangential force exerted by the high-speed rotation of the water storage body 1, water mist is formed. As the water storage body 1 continues to rotate, a 360-degree full-coverage water mist effect is achieved.

[0047] In practical applications, preferably, refer to Figure 1 The number of water outlet holes 13 is set to be multiple, and the multiple water outlet holes 13 are evenly spaced and covered on the surface of the water storage body 1, so that water mist can be generated in all directions of the water storage body 1, thereby improving the coverage effect of the water mist and further improving the fire extinguishing effect of the device.

[0048] Optionally, the diameter of the water outlet hole 13 may be in the range of 0.2 mm to 1.0 mm. In practical applications, the coverage and effect of the water mist can be indirectly adjusted by adjusting the diameter of the water outlet hole 13, which is not specifically limited here.

[0049] Optionally, the water storage body 1 can be in any of the following shapes: spherical, cylindrical, conical, or cubic. Figure 7 The spherical shape shown in the figure makes the water mist generated by the water storage body 1 be spherical in shape. It should be noted that water storage bodies 1 of other shapes are also within the scope of protection of the present invention.

[0050] For example, in some embodiments, the rotating assembly 3 may be a rotating motor, which may be connected to the water storage body 1 via a bearing, thereby driving the water storage body 1 to rotate by rotating the driving bearing.

[0051] In a specific embodiment, please refer to Figure 2 and Figure 3The rotating assembly 3 includes: a driving member 31, an outer fixed ring 32 and an inner rotating ring 33 coaxially arranged with the external connecting member 2.

[0052] Specifically, the outer fixing ring 32 is sleeved on the outside of the inner rotating ring 33 and is rotatably connected to the inner rotating ring 33. One end of the outer fixing ring 32 is detachably connected to the output end of the external connection member 2 (for example, the output end of the external connection member 2 is threadedly connected to the internal thread structure 323). The end of the inner rotating ring 33 away from the external connection member 2 is connected to the water inlet 12, so that the water storage chamber 11 is connected to the output end of the external connection member 2 after passing through the water inlet 12, the inner rotating ring 33 and the outer fixing ring 32. The driving member 31 is connected to the inner rotating ring 33. The driving member 31 is used to drive the inner rotating ring 33 to rotate around its central axis relative to the outer fixing ring 32, thereby causing the inner rotating ring 33 to drive the water storage body 1 to rotate synchronously. In actual applications, the driving member 31 can be a rotary motor, which drives the inner rotating ring 33 to rotate.

[0053] In a specific embodiment, please refer to Figure 3 and Figure 5 The driving member 31 includes an impeller 311 , an impeller fixing pin 312 and a bearing 313 .

[0054] Specifically, the impeller 311 includes an axle 3111 and multiple blades 3112. Both the axle 3111 and blades 3112 are disposed within the inner rotating ring 33. The axle 3111 is coaxial with the inner rotating ring 33, and the blades 3112 are circumferentially spaced apart on the sidewall of the axle 3111. The axle 3111 is provided with a radially extending axial hole 4, which may be one or more. A bearing 313 is disposed between the outer stationary ring 32 and the inner rotating ring 33. The outer ring of the bearing 313 is connected to the outer stationary ring 32, while the inner ring of the bearing 313 is connected to the inner rotating ring 33. A pin hole 5 corresponding to the axial hole 4 is provided on the sidewall of the inner rotating ring 33. The impeller fixing pin 312 passes through the pin hole 5 and the axial hole 4, and its ends are connected to the inner ring of the bearing 313.

[0055] Understandably, in this embodiment, high-pressure firefighting water impacts blades 3112 of impeller 311 as it enters water storage chamber 11. The impact on blades 3112 drives shaft 3111 to rotate. Shaft 3111 further drives the inner ring of bearing 313 to rotate via impeller fixing pin 312. Because the inner ring of bearing 313 is connected to inner rotating ring 33, inner rotating ring 33 is driven to rotate by the inner ring of bearing 313, which in turn drives the connected water storage body 1 to rotate. This embodiment eliminates the need for a motor to drive water storage body 1, reducing costs and providing improved durability and safety in fire scenarios.

[0056] For further information, please refer to Figure 3 、 Figure 4 and Figure 6A first retaining groove 321 corresponding to the bearing 313 is circumferentially defined on the inner wall of the outer stationary ring 32, while a second retaining groove 331 corresponding to the bearing 313 is circumferentially defined on the outer wall of the inner rotating ring 33. By abutting the bearing 313 against the sidewalls of the first and second retaining grooves 321 and 331, the axial position of the bearing 313 is fixed, providing greater stability for the bearing 313 and thereby extending the service life of the device.

[0057] Furthermore, a first retaining spring groove 322 may be defined on the inner wall of the outer fixed ring 32, and a second retaining spring groove 332 may be defined on the outer wall of the inner rotating ring 33. Specifically, the first retaining spring groove 322 and the second retaining spring groove 332 are located on different axial sides of the bearing 313. A retaining spring 6 is disposed in each of the first retaining spring groove 322 and the second retaining spring groove 332. The retaining spring 6 abuts against the bearing 313, thereby further securing the axial position of the bearing 313.

[0058] In some embodiments, please refer to Figure 1 and Figure 2 , also includes a protective cage 7 for protecting the water storage body 1. The protective cage 7 surrounds the water storage body 1 to prevent the water storage body 1 from being damaged when thrown into a fire. One end of the protective cage 7 can be detachably connected to the outer fixing ring 32 or the outer connecting piece 2 to facilitate the installation and removal of the protective cage 7. In actual application, the shape of the protective cage 7 can be adaptively adjusted according to the shape of the water storage body 1, and no specific limitation is made here. For example, referring to Figure 8 The protective cage 7 may include a plurality of longitudinal curved rods 701 and a plurality of transverse curved rods 702. The longitudinal curved rods 701 and the transverse curved rods 702 are fixedly connected to each other to form a spherical cage structure to adapt to the water storage body 1 with a spherical structure.

[0059] Please refer to Figures 8 to 10 Based on the above embodiment, the protective cage 7 may further include a first cage body 71 and a second cage body 72 of symmetrical structure. Each of the first cage body 71 and the second cage body 72 has a plurality of longitudinal curved rods 701 and a plurality of transverse curved rods 702. One end of the first cage body 71 and the second cage body 72 are rotatably connected by a rotating shaft 8. The other end of each of the first cage body 71 and the second cage body 72 has a fixing member 703. The fixing members 703 are detachably connected by fasteners 704 (e.g., nuts) and are configured to snap onto the outer fixing ring 32.

[0060] In practice, both the first cage 71 and the second cage 72 include a fixing plate 705, and the rotating shaft 8 includes a coaxially arranged, independent first and second shafts 81 and 82. Specifically, one end of the longitudinal curved rod 701 of the first cage 71 is connected to its fixing member 703, and the other end is connected to its fixing plate 705. Similarly, one end of the longitudinal curved rod 701 of the second cage 72 is connected to its fixing member 703, and the other end is connected to its fixing plate 705. The fixing plate 705 of the first cage 71 is fixedly connected to the first shaft 81, and the fixing plate 705 of the second cage 72 is fixedly connected to the second shaft 82. This ensures that the first and second cages 71 and 72 do not interfere with each other's rotation, allowing them to engage and disengage through rotation.

[0061] In summary, the present invention's water mist generating device for firefighting and rescue solves the problems of traditional fire hoses, which require firefighters to operate them manually, have a fixed, single direction of discharge, a limited range, and are unable to cope with specific fire scenarios, such as inaccessible fire sources. The present invention's water mist generating device, which requires no handheld operation by firefighters, can be thrown into a fire scene to automatically generate water mist. This water mist-based blanket firefighting system is convenient and quick, reduces safety risks for firefighters, and deserves widespread application and promotion.

[0062] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present invention.

[0063] Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the implementation scenario description, or can be modified accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module or further split into multiple submodules.

[0064] The serial numbers of the above utility models are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water mist generating device for fire rescue, characterized in that: include: Water storage body, external connections and rotating components; The water storage body has a water storage cavity inside, and a water inlet is opened at one end of the water storage body. The water storage cavity is connected to the output end of the external connection part through the water inlet, and the input end of the external connection part is used to connect to an external water delivery device; The water storage body is provided with one or more water outlet holes, and the water storage cavity is connected to the outside world through the water outlet holes; the rotating component is driven and connected to the water storage body, and the rotating component is used to drive the water storage body to rotate with the external connection part as the rotation center axis.

2. A fire rescue water mist generating device according to claim 1, characterized in that: The rotating assembly comprises: a driving member, an outer fixed ring and an inner rotating ring coaxially arranged with the outer connecting member; The outer fixed ring is sleeved on the outside of the inner rotating ring and is rotatably connected to the inner rotating ring. One end of the outer fixed ring is detachably connected to the output end of the external connecting member. The end of the inner rotating ring away from the external connecting member is connected to the water inlet, so that the water storage chamber is connected to the output end of the external connecting member through the water inlet, the inner rotating ring and the outer fixed ring; the driving member is drivingly connected to the inner rotating ring, and the driving member is used to drive the inner rotating circle to rotate around its center axis relative to the outer fixed ring, so that the inner rotating circle drives the water storage body to rotate synchronously.

3. A fire rescue water mist generating device according to claim 2, characterized in that: The driving member includes an impeller, an impeller fixing pin and a bearing; The impeller comprises a wheel shaft and a plurality of blades, the wheel shaft and the plurality of blades are both arranged in the inner rotating circle, the wheel shaft is coaxially arranged with the inner rotating circle, and the plurality of blades are arranged on the side wall of the wheel shaft at intervals along the circumferential direction; the wheel shaft is provided with a through shaft hole in the radial direction; The bearing is arranged between the outer fixed ring and the inner rotating ring, the outer ring of the bearing is connected to the outer fixed ring, and the inner ring of the bearing is connected to the inner rotating ring; a pin hole corresponding to the shaft hole is opened on the side wall of the inner rotating ring, and the impeller fixing pin passes through the pin hole and the shaft hole, and the two ends are respectively connected to the inner ring of the bearing.

4. A fire rescue water mist generating device according to claim 3, characterized in that: A first limiting groove corresponding to the bearing is circumferentially opened on the inner wall of the outer fixed ring, and a second limiting groove corresponding to the bearing is circumferentially opened on the outer wall of the inner rotating ring; the axial position of the bearing is fixed by the bearing abutting against the side walls of the first limiting groove and the second limiting groove.

5. A fire rescue water mist generating device according to claim 3 or 4, characterized in that: A first retaining ring groove is provided on the inner wall of the outer fixed ring, and a second retaining ring groove is provided on the outer wall of the inner rotating ring; the first retaining ring groove and the second retaining ring groove are located on different sides of the bearing in the axial direction; retaining rings are provided in both the first retaining ring groove and the second retaining ring groove, and the retaining rings abut against the bearing to fix the axial position of the bearing.

6. A fire rescue water mist generating device according to claim 2, characterized in that: It also includes a protection cage for protecting the water storage body. The protection cage surrounds the water storage body. One end of the protection cage is detachably connected to the outer fixing ring or the outer connecting piece.

7. A fire rescue water mist generating device according to claim 6, characterized in that: The protective cage includes a plurality of longitudinal curved rods and a plurality of transverse curved rods, wherein the longitudinal curved rods and the transverse curved rods are fixedly connected to each other to form a spherical cage structure; the spherical cage structure surrounds the water storage body, and one end thereof is detachably connected to the outer fixing ring or the outer connecting member.

8. A fire rescue water mist generating device according to claim 6, characterized in that: The protective cage includes a first cage body and a second cage body with symmetrical structures; one end of the first cage body and the second cage body are rotatably connected by a rotating shaft, and the other end of the first cage body and the second cage body are both provided with fixing parts, and the fixing parts of the two are detachably connected by fasteners, and the fixing parts of the two are buckled on the outer fixing ring.

9. A fire rescue water mist generating device according to claim 8, characterized in that: The first cage body and the second cage body each further include a fixing plate, and the rotating shaft includes a first shaft body and a second shaft body which are coaxially arranged and independent of each other; One end of the first cage body away from the fixing member is fixedly connected to the first shaft body through the fixing plate, and one end of the second cage body away from the fixing member is fixedly connected to the second shaft body through the fixing plate.

10. A fire rescue water mist generating device according to claim 1, characterized in that: The water storage body is in any one of a spherical, columnar, conical and cubic shape.