A pressurized gas dry powder fire extinguisher
By introducing a sliding component and spring structure into the pressurized dry powder fire extinguisher, the problem of the collar tilting and jamming was solved, enabling quick and stable fixing and unlocking of the spray hose, thus improving operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU SHANHE FIRE TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
AI Technical Summary
In emergency situations, the collar of a conventional pressurized dry powder fire extinguisher is prone to tilting and getting stuck on the outer wall of the container, making it difficult to operate with one hand and affecting its efficiency.
It adopts a sliding component and spring structure, and achieves limit by connecting the moving ring to the slide groove. The connecting rod is inserted into the connecting groove and locked by the block. The spring action is used to achieve quick fixing and unlocking, simplifying the operation process.
It enables quick and stable fixing and unlocking of the spray hose in emergency situations, saving operation time and improving efficiency.
Smart Images

Figure CN224523844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguisher technology, and in particular to a pressurized gas dry powder fire extinguisher. Background Technology
[0002] Pressurized gas fire extinguishers are fire-fighting devices that use the pressure of compressed gas or vapor stored in a container to drive the extinguishing agent. The simplified types include water-based, dry powder, and hydrofluorocarbon types. They are lightweight and easy to use, and are suitable for initial fire suppression in home settings.
[0003] In the prior art, specifically patent number CN219847942U, a portable pressurized dry powder fire extinguisher is disclosed, comprising a fire extinguisher body, the fire extinguisher body having a spray hose; the fire extinguisher body is provided with an auxiliary mechanism capable of supporting the spray hose, the auxiliary mechanism comprising: a collar movably sleeved on the fire extinguisher body, the collar being provided with a lifting and positioning mechanism for lifting the collar and positioning the collar; an auxiliary support arm hinged to one side of the collar; a retaining sleeve hinged to the other end of the auxiliary support arm, the retaining sleeve being adapted to fit the spray hose; and a nozzle being provided at the end of the spray hose, the nozzle having a trumpet-shaped structure.
[0004] Although the auxiliary support function allows for one-handed operation, it was found that the collar needs to be manually and slowly moved upwards because there is a certain gap between the collar and the container body. If the position is not correct, the collar may tilt slightly when moving upwards and get stuck on the outer wall of the container. This makes it difficult to slide upwards properly in an emergency. Utility Model Content
[0005] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.
[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a pressurized gas dry powder fire extinguisher to solve the existing problems.
[0007] To achieve the above objectives, the technical solution of this utility model is: a pressurized dry powder fire extinguisher, comprising a fire extinguisher body, the fire extinguisher body being equipped with a sliding assembly, the sliding assembly including mounting rings sleeved on the upper and lower ends of the fire extinguisher body, sliding plates provided on both sides between the mounting rings, a sliding groove provided on the end face of the sliding plate, a movable ring provided on the sliding plate, the movable ring being slidably connected to the sliding groove through a connecting plate to achieve up and down movement, an auxiliary mechanism for supporting the spray hose connected to the outer wall of the movable ring, a connecting rod provided at the upper end of the connecting plate, a connecting groove provided on the side of the mounting ring located at the upper end of the fire extinguisher body opposite to the connecting rod, a mounting groove provided on the outer wall of the connecting rod, a second spring provided in the mounting groove, a locking block connected to one end of the second spring, the outer end of the locking block being inclined from top to bottom and outward, an inclined surface corresponding to the locking block provided at the bottom of the mounting ring opposite to the locking block, and a through groove matching the locking block provided on the side opposite to the connecting groove.
[0008] In some embodiments, a first spring is installed in the slide, the top of the first spring is connected to the connecting plate, and the middle side wall of the sliding plate is provided with a through hole penetrating the side wall of the slide, and an insertion rod is inserted into each of the through holes.
[0009] In some embodiments, the outer ends of the insertion rods are connected by a transverse rod.
[0010] In some embodiments, the bottom of the connecting plate is provided with a groove, which is sleeved on the end of the first spring.
[0011] In some embodiments, the movable ring has pressing holes on both sides of its outer wall.
[0012] By adopting the above technical solution, the beneficial effects of this utility model are: After the movable ring is connected to the slide groove for limiting, it will move up and down along the slide groove. Under the effect of limiting, the movable ring will not be misaligned during movement, making it difficult to move. At the same time, it will not be difficult to move because it is too close to the outer wall of the fire extinguisher body.
[0013] When moved to the top, the connecting rod inserts into the connecting groove. The inclined surface of the mounting ring allows the locking block to retract and continue moving upward. Then, under the action of the second spring, it can be pushed into the through groove to lock in place, thus fixing the moving ring. This eliminates the need for cumbersome fixing and saves operation time.
[0014] Press the moving ring down to compress the first spring. Once fully compressed, insert the insertion rod into the through hole to secure the moving ring, preventing it from being lifted by the spring. When needed, pull out both insertion rods together. The first spring will then lift the moving ring, allowing for quick and efficient use.
[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.
[0016] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.
[0017] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0019] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a fire extinguisher according to some embodiments of the present invention; Figure 2 This is a schematic diagram of the structure of removing the insertion rod in some embodiments of this utility model; Figure 3 This is a structural cross-sectional view of a fire extinguisher according to some embodiments of the present invention; Figure 4 This is a schematic diagram of the card block connection structure in some embodiments of this utility model. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0023] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0025] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0026] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0027] Reference Figure 1-4This utility model provides a pressurized dry powder fire extinguisher, including a fire extinguisher body 1. The fire extinguisher body 1 is equipped with a sliding assembly 2. The sliding assembly 2 includes mounting rings 21 sleeved at the upper and lower ends of the fire extinguisher body 1. Sliding plates 22 are provided on both sides between the mounting rings 21. The end face of the sliding plate 22 is provided with a sliding groove 23. A movable ring 24 is provided on the sliding plate 22. The movable ring 24 is slidably connected to the sliding groove 23 through a connecting plate 25 to achieve vertical movement. An auxiliary mechanism capable of supporting the spray hose 11 is connected to the outer wall of the movable ring 24. The structure includes a connecting rod 5 at the upper end of the connecting plate 25, a connecting groove 51 on the side of the mounting ring 23 located at the upper end of the fire extinguisher body 1 opposite to the connecting rod 5, an mounting groove 52 on the outer wall of the connecting rod 5, a second spring 53 inside the mounting groove 52, a locking block 54 connected to one end of the second spring 53, the outer end of the locking block 54 being inclined from top to bottom and outward, an inclined surface corresponding to the locking block 54 on the bottom of the mounting ring 21 opposite to the locking block 54, and a through groove 55 matching the locking block 54 on the side opposite to the connecting groove 51.
[0028] Specifically, the auxiliary mechanism is connected to the moving ring 24. After the moving ring 24 is connected to the slide 23 for limiting, it will move up and down along the path of the slide 23. Under the effect of limiting, the moving ring 24 will not be misaligned during movement, making it difficult to move. At the same time, it will not be difficult to move because it is too tight against the outer wall of the fire extinguisher body 1. When it moves to the top, the connecting rod 5 will be inserted into the connecting groove 51. The inclined surface of the mounting ring 21 allows the locking block 54 to retract and continue to move upward along the inclined surface. Then, under the action of the second spring 53, it can be pushed into the through groove 55 to lock it, thus fixing the moving ring 24. This eliminates the need for cumbersome fixing and saves operation time.
[0029] Then, a first spring 3 is installed in the slide groove 23. The top of the first spring 3 is connected to the connecting plate 25. The middle side wall of the sliding plate 22 has through holes 26 penetrating the side wall of the slide groove 23. Insertion rods 27 are inserted into each through hole 26. This allows the moving ring 24 to be pressed down to compress the first spring 3. After compression, the insertion rods 27 are inserted into the through holes 26 to fix the moving ring 24 in place, preventing it from being pushed up by the spring. When needed, the insertion rods 27 on both sides are pulled out together. Under the action of the first spring 3, the moving ring 24 will be pushed up, thus allowing it to move. To facilitate quick and time-saving use, the two insertion rods 27 are connected together by the horizontal rod 28 to form a U-shaped bracket. This allows for quick pulling out by directly gripping the horizontal rod 28. A groove 29 is provided at the bottom of the connecting plate 25, which fits onto the end of the first spring 3. This prevents the first spring 3 from shifting during movement. When lifting, the rubber pad 56 provided in the connecting groove 51 provides a certain buffering effect on the connecting rod 5, avoiding excessive vibration.
[0030] Finally, after use, some items that can continue to be used but need to be returned to the factory for refilling can be replaced by inserting the matching rod into the through slot 55 to separate the locking block 54, and then inserting the corresponding rod into the pressing hole 4 to press and reset it.
[0031] Working principle: When needed, the insertion rod 27 can be pulled out by holding the horizontal bar 28. Under the action of the first spring 3, the moving ring 24 will be lifted and moved to the upper end along the slide groove. The locking block 54 will be locked in the through groove 55 to lock the moving ring 24 at the upper end of the fire extinguisher body 1. In this way, the nozzle 11 can be lifted by the auxiliary mechanism (not shown in the figure) for one-handed fire extinguishing.
[0032] Furthermore, the specific structure of the auxiliary mechanism and the structure of the connecting moving ring 24 are the same as those disclosed in the prior art patent, with only the limit movement structure being improved, so they will not be described in detail here.
[0033] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.
[0034] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.
[0035] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.
Claims
1. A pressurized gas dry powder fire extinguisher, characterized in that, include: The fire extinguisher body is equipped with a sliding assembly, which includes mounting rings fitted at the upper and lower ends of the fire extinguisher body. Sliding plates are provided on both sides between the mounting rings. A sliding groove is provided on the end face of each sliding plate. A movable ring is provided on the sliding plate, and the movable ring moves up and down by sliding connection with the sliding groove via a connecting plate. An auxiliary mechanism supporting the spray hose is connected to the outer wall of the movable ring. A connecting rod is provided at the upper end of the connecting plate. A connecting groove is provided on the side of the mounting ring opposite the connecting rod at the upper end of the fire extinguisher body. A mounting groove is provided on the outer wall of the connecting rod. A second spring is provided in the mounting groove. One end of the second spring is connected to a locking block. The outer end of the locking block is inclined outwards from top to bottom. The bottom of the mounting ring, opposite the locking block, has an inclined surface matching the locking block, and the side opposite the connecting groove has a through groove matching the locking block.
2. The pressurized dry powder fire extinguisher according to claim 1, characterized in that: A first spring is installed in the slide, and the top of the first spring is connected to the connecting plate. The middle side wall of the sliding plate is provided with through holes that penetrate the side wall of the slide, and an insertion rod is inserted into each of the through holes.
3. The pressurized dry powder fire extinguisher according to claim 2, characterized in that: The outer ends of the insertion rods are connected by a transverse rod.
4. The pressurized dry powder fire extinguisher according to claim 2, characterized in that: The bottom of the connecting plate has a groove, which is fitted onto the end of the first spring.
5. The pressurized dry powder fire extinguisher according to claim 1, characterized in that: The movable ring has pressing holes on both sides of its outer wall.
6. The pressurized dry powder fire extinguisher according to claim 1, characterized in that: A rubber pad is installed inside the connecting groove.