Fire extinguishing device

Abstract

This application relates to a fire extinguishing device. The fire extinguishing device includes: a fire extinguisher body, a nozzle assembly, a handle, a pressure lever, and a limiting assembly. The nozzle assembly is connected to the fire extinguisher body; the handle is connected to the fire extinguisher body; the pressure lever is rotatably connected to the handle and can switch between an initial position and an open position around a rotation axis; the limiting assembly is connected to the fire extinguisher body and is located on the rotation path of the pressure lever; wherein, when the pressure lever rotates from the initial position to the open position, the limiting assembly abuts against the pressure lever to keep the pressure lever in the open position, thereby allowing the nozzle assembly to communicate with the fire extinguisher body and continuously spray extinguishing agent. The fire extinguishing device provided by this application can automatically press the pressure lever, reducing the difficulty of operation and improving the safety of using the fire extinguishing device.

Description

Technical Field

[0001] This application relates to the field of fire protection equipment technology, and in particular to a fire extinguishing device. Background Technology

[0002] Fire extinguishers are common fire-fighting devices. In practice, users need to lift the extinguisher and continuously press the handle to ensure a continuous spray of extinguishing agent. This operation is relatively strenuous and requires considerable physical strength, increasing the difficulty of fire extinguishing. For the elderly or children with relatively weaker strength, the inability to steadily press the handle can easily lead to interrupted extinguishing agent spray, reducing the safety of using the fire extinguishing device. Summary of the Invention

[0003] Therefore, it is necessary to provide a fire extinguishing device that can automatically press the handle, reducing the difficulty of operation and improving the safety of using the fire extinguishing device.

[0004] This application provides a fire extinguishing device, including:

[0005] The fire extinguisher itself contains a fire extinguishing agent;

[0006] The nozzle assembly is connected to the fire extinguisher body;

[0007] The handle is connected to the body of the fire extinguisher.

[0008] The pressure handle is rotatably connected to the handle and can switch between an initial position and an open position around the rotation axis;

[0009] A limiting component is connected to the fire extinguisher body and is located on the rotation path of the handle;

[0010] When the handle rotates from the initial position to the open position, the limiting component connects to the handle to keep the handle in the open position, thereby allowing the nozzle assembly to communicate with the fire extinguisher body and continuously spray extinguishing agent.

[0011] In one embodiment, the limiting component includes at least one set of limiting units, the limiting unit including a fixing plate, an elastic element and a stop;

[0012] The fixing plate is connected to the fire extinguisher body;

[0013] The elastic element is connected to the fixed plate and the stop block, and the elastic element has a tendency to push the stop block closer to the pressure handle.

[0014] The stop block is slidably connected to the fixed plate;

[0015] When the pressure handle rotates from the initial position to the open position, the elastic element pushes the stop block to switch from the first position to the second position, so that the stop block at least partially abuts against the side wall of the pressure handle facing away from the handle.

[0016] In one embodiment, the fixing plate has a limiting groove on the side facing the pressure handle, the elastic member is installed in the limiting groove, one end of the elastic member abuts against the inner wall of the limiting groove, and the other end of the elastic member abuts against the stop block; at least a portion of the stop block is located in the limiting groove and can slide along the length direction of the limiting groove, and the portion of the stop block located in the limiting groove is provided with a stop protrusion, the outer dimensions of the stop protrusion being larger than the opening size of the limiting groove;

[0017] When the pressure handle is in the initial position, the stop block is in the first position, and at least a portion of the stop block protrudes from the limiting groove and abuts against the side wall of the pressure handle facing the fixing plate.

[0018] In one embodiment, the limiting unit further includes a positioning block and an insert plate. The positioning block is connected to the fixing plate. The positioning block has a slot. The insert plate passes through the slot, and at least a portion of the insert plate abuts against the end of the stop block away from the elastic member, so that the stop block is in a third position.

[0019] Specifically, the movable insert plate disengages from the stop block, and the stop block switches from the third position to the first position.

[0020] In one embodiment, a limiting block is further included, which is connected to the insert plate, protrudes from the slot, and abuts against the positioning block.

[0021] In one embodiment, the number of limiting units is two sets, the two sets of limiting units are arranged opposite to each other, and the pressure handle is located between the two sets of limiting units.

[0022] In one embodiment, it also includes a connected head assembly and a pressure gauge. The head assembly is connected to the fire extinguisher body and the nozzle assembly. An observation port is provided on the fixing plate, and the observation port is positioned facing the dial of the pressure gauge.

[0023] And / or, the fire extinguishing device further includes a latch, which is movably connected to the limiting component and extends through the handle to hold the handle in the initial position.

[0024] In one embodiment, the nozzle assembly includes a nozzle, a nozzle, and a handle. One end of the nozzle is connected to the fire extinguisher body, the nozzle is located at the opposite end of the nozzle, and the handle is located on the side wall of the nozzle end near the nozzle.

[0025] In one embodiment, a fixing component is also included, which is connected to the fire extinguisher body and is used for fixing to an external wall.

[0026] In one embodiment, the fixing component includes a base, a fixing block, and a fastener. The base has a placement groove, and a portion of the fire extinguisher body is inserted into the placement groove. The fixing block is connected to the outer wall of the base, and the fastener is used to fix the fixing block to the outer wall.

[0027] And / or, the fixing component further includes an adhesive portion disposed on the side of the fixing block facing away from the base, for bonding and fixing the fixing block to the external wall.

[0028] In the aforementioned fire extinguishing device, when the handle is rotated from the initial position to the open position, the limiting component abuts against the handle to keep the handle in the open position, thereby enabling the nozzle assembly to connect with the fire extinguisher body and continuously spray extinguishing agent. The limiting component can automatically press the handle, eliminating the need for manual operation by the user, reducing the difficulty of operating the fire extinguishing device, and improving the safety of using the fire extinguishing device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a fire extinguishing device in one embodiment of this application.

[0030] Figure 2 This is a structural schematic diagram of the fire extinguishing device from another perspective in one embodiment of this application.

[0031] Figure 3 This is a schematic diagram showing the distribution of the limiting units in one embodiment of this application.

[0032] Figure 4 This is a partial cross-sectional view of a fire extinguishing device in one embodiment of this application.

[0033] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0034] Figure 6 for Figure 4 A magnified view of a section at point B in the middle.

[0035] Figure 7 This is a schematic diagram of the structure of the fixing component in one embodiment of this application.

[0036] The attached figures are labeled as follows:

[0037] 1. Fire extinguisher body; 2. Nozzle assembly; 21. Nozzle; 22. Nozzle; 23. Handle; 3. Handle; 4. Press handle; 5. Limiting assembly; 51. Limiting unit; 511. Fixing plate; 5111. Limiting groove; 5112. Observation port; 512. Elastic element; 513. Stop block; 5131. Stop protrusion; 514. Positioning block; 5141. Slot; 515. Insert plate; 516. Limiting block; 517. Handle; 6. Extinguisher head assembly; 7. Pressure gauge; 8. Pin; 9. Fixing assembly; 91. Base; 911. Placement groove; 92. Fixing block; 921. Through hole; 93. Adhesive part. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] See Figure 1 and Figure 2An embodiment of this application provides a fire extinguishing device including a fire extinguisher body 1, a nozzle assembly 2, a handle 3, a pressure handle 4, and a limiting component 5. The fire extinguisher body 1 stores extinguishing agent. The nozzle assembly 2 is connected to the fire extinguisher body 1 and is used to extract the extinguishing agent from the fire extinguisher body 1. The handle 3 is connected to the fire extinguisher body 1 and is used for gripping the fire extinguishing device during use. The pressure handle 4 is rotatably connected to the handle 3 and can switch between an initial position and an open position around a rotation axis. The limiting component 5 is connected to the fire extinguisher body 1 and is located on the rotation path of the pressure handle 4. When no fire extinguishing operation is required, the pressure handle 4 is in the initial position and is kept relatively fixed to the handle 3 by a pin 8. When a fire extinguishing operation is required, the pressure handle 4 needs to be rotated from the initial position to the open position. To continuously press the pressure handle 4, the limiting component abuts against the pressure handle 4 to keep the pressure handle 4 in the open position, thereby allowing the nozzle assembly 2 to communicate with the fire extinguisher body 1 and continuously spray extinguishing agent. The limiting component can automatically press the handle 4, eliminating the need for manual pressing by the user, thus reducing the difficulty of operating the fire extinguishing device and improving its safety during use.

[0045] Furthermore, such as Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, to simplify the structure of the limiting assembly, in one embodiment, the limiting assembly 5 includes at least one set of limiting units 51. Each limiting unit 51 includes a fixing plate 511, an elastic element 512, and a stop block 513. The fixing plate 511 is fixedly connected to the fire extinguisher body 1 and serves as a mounting carrier for the elastic element 512 and the stop block 513. The elastic element 512 is connected to the fixing plate 511 and the stop block 513, and the elastic element 512 has a tendency to push the stop block 513 closer to the handle 4. The stop block 513 is slidably connected to the fixing plate 511. When the handle 4 is rotated to the open position, the elastic element 512 pushes the stop block 513 from a first position to a second position, so that the stop block 513 at least partially abuts against the side wall of the handle 4 facing away from the handle 3. When the lever 4 needs to be pressed continuously, the elastic element 512 can push the stop 513 from the first position to the second position. At this time, the stop 513 is located above the handle 3, which can prevent the stop 513 from resetting, and at the same time can press the lever 4 continuously so that the nozzle assembly 2 can continuously spray fire extinguishing agent.

[0046] Furthermore, such as Figure 5 and Figure 6As shown, in order to limit the movement of the elastic member 512 and the pressure block, in one embodiment, the fixing plate 511 has a limiting groove 5111 on the side facing the pressure handle 4, the elastic member 512 is installed in the limiting groove 5111, one end of the elastic member 512 abuts against the inner wall of the limiting groove 5111, and the other end of the elastic member 512 abuts against the stop block 513. In this way, the elastic member 512 can be prevented from separating from the fixing plate 511 and the stop block 513, and the stability of the connection between the elastic member 512 and the fixing plate 511 and the stop block 513 can be improved. At least a portion of the stop block 513 is located within the limiting groove 5111 and can slide along the length of the limiting groove 5111. The portion of the stop block 513 located within the limiting groove 5111 has a stop protrusion 5131. The outer dimensions of the stop protrusion 5131 are larger than the opening size of the limiting groove 5111. That is, the end of the stop block 513 near the stop protrusion 5131 forms an inverted structure within the limiting groove 5111, which can prevent the stop block 513 from dislodging from the limiting groove 5111 under the elastic force of the elastic member 512. This improves the reliability of the stop block 513 when it abuts against the pressure handle 4. To simplify the structure of the elastic member 512, the elastic member 512 can be made of a spring.

[0047] It should be noted that in this embodiment, when the handle 4 is in the initial position, the stop block 513 is in the first position, with at least a portion of the stop block 513 protruding from the limiting groove 5111 and abutting against the side wall of the handle 4 facing the fixing plate 511. That is, when the handle 4 is in the initial position, the stop block 513 abuts against the opposite side wall of the handle 4, and the elastic member 512 is in a compressed state. Subsequently, when the handle 4 is pressed, the handle 4 moves downward. When the block disengages from the handle 4, the block moves above the handle 4 under the pushing action of the elastic member 512 and at least abuts against the side wall of the handle 4 facing away from the handle 3, thereby fixing the downward position of the handle 4. In this way, continuous and stable pressing of the handle 4 can be achieved by the block, without the need for continuous manual pressing, reducing the difficulty of operating the fire extinguishing device and improving the safety of using the fire extinguishing device.

[0048] Furthermore, such as Figure 5 and Figure 6As shown, the limiting unit 51 also includes a positioning block 514 and an insert plate 515. The positioning block 514 is connected to the fixing plate 511. A slot 5141 is provided on the positioning block 514. The insert plate 515 passes through the slot 5141, and at least a portion of the insert plate 515 abuts against the end of the stop block 513 away from the elastic member 512, so that the stop block 513 is in the third position. The insert plate 515 can limit the pressure block within the limiting groove 5111, and the pressure block is disengaged from the pressure handle 4. This can prevent the pressure block and pressure handle 4 from colliding due to vibration during the movement or transportation of the fire extinguishing device, thus preventing damage to the pressure block or pressure handle 4 and extending the service life of the pressure block and pressure handle 4. In addition, the pressure block can be hidden before the fire extinguishing device is used, further reducing the risk of the pressure block falling out of the limiting groove 5111 and improving the stability of the fire extinguishing device during use.

[0049] It should be noted that in the above embodiment, when using the fire extinguishing device, the insert plate 515 needs to be moved to disengage from the stop block 513. Under the elastic force of the elastic member 512, the stop block 513 switches from the third position to the first position, so that the stop block 513 abuts against the side wall opposite to the handle 4. Then, the handle 4 is pressed, and the handle 4 moves downward. After the block disengages from the handle 4, the block moves above the handle 4 under the pushing action of the elastic member 512. At this time, the handle 4 switches from the first position to the second position, and the block at least partially abuts against the side wall of the handle 4 facing away from the handle 3, so that the downward position of the handle 4 is fixed. In this way, when the fire extinguishing device is in use, the block switches between three positions, from the third position to the first position, and finally stabilizes in the second position, so as to continuously and stably press the handle 4.

[0050] Furthermore, such as Figure 5 and Figure 6 As shown, to prevent the insert plate 515 from detaching from the slot 5141, in one embodiment, the limiting unit 51 further includes a limiting block 516. The limiting block 516 is connected to the insert plate 515, protrudes from the slot 5141, and abuts against the positioning block 514. That is, the limiting block 516 is located at the top of the insert plate 515. Simultaneously, because the limiting block 516 protrudes from the slot 5141, the insert plate 515 cannot detach from the slot 5141 under gravity, thereby achieving stable limiting of the pressure block. Furthermore, to facilitate the insertion and removal of the insert plate 515 and make it easier to grip, in one embodiment, a handle 517 is provided at the top of the limiting block 516 for gripping and applying force when inserting or removing the insert plate 515, facilitating fire extinguishing operations.

[0051] Furthermore, such as Figure 2 , Figure 3 and Figure 4As shown, to ensure stability when the handle 4 is pressed and to avoid unilateral force, in one embodiment, there are two sets of limiting units 51, which are arranged opposite to each other, with the handle 4 located between the two sets of limiting units 51. During fire extinguishing operations, the pressure blocks in the two sets of limiting units 51 are arranged opposite to each other and are both located above the handle 4, so that the force on both sides of the handle 4 in the width direction is even, thus achieving stable pressing of the handle 4.

[0052] Furthermore, to facilitate pressure control of the fire extinguisher body 1, in one embodiment, the fire extinguishing device further includes a connected head assembly 6 and a pressure gauge 7. The head assembly 6 is connected to the fire extinguisher body 1 and the nozzle assembly 2, and an observation port 5112 is provided on the fixing plate 511. The head assembly 6 is a valve structure; pressing the handle 4 opens the head assembly 6, thereby spraying the extinguishing agent in the fire extinguisher body 1 through the nozzle assembly 2. The pressure gauge 7 is used to monitor the pressure of the fire extinguisher body 1 to ensure sufficient pressure is provided when the fire extinguisher body 1 is connected to the nozzle assembly 2 to spray the extinguishing agent, ensuring the fire extinguishing device can be used normally. To facilitate observation of the pressure of the fire extinguishing device, the observation port 5112 is positioned directly opposite the dial of the pressure gauge 7, facilitating rapid reading of the pressure of the fire extinguishing device.

[0053] To prevent accidental activation of the fire extinguishing device due to accidental pressing of the handle 4, in one embodiment, the fire extinguishing device further includes a latch 8. The latch 8 is movably connected to the limiting component and passes through the handle 4 to keep the handle 4 in its initial position. Thus, when the fire extinguishing device is stored, the latch 8 restricts the rotation of the handle 4, preventing accidental pressing. When fire extinguishing is needed, the latch 8 is pulled out, allowing the handle 4 to rotate relative to the handle 3. Pressing down the handle 4 then initiates the fire extinguishing operation, improving the stability of the fire extinguishing device during storage.

[0054] Furthermore, the nozzle assembly 2 includes a nozzle 21, a nozzle 22, and a handle 23. One end of the nozzle 21 is connected to the fire extinguisher body 1, and the other end of the nozzle 21 is equipped with the nozzle 22. The handle 23 is located on the side wall of the nozzle 21 near the nozzle 22. The handle 23 is made of rubber with a rounded surface. When in use, the nozzle 22 can be aimed at the fire source by holding the handle 23. When the fire extinguisher body 1 is activated, since the nozzle 21 is generally supported by a hose, the high-speed airflow or vaporizing agent will generate a significant recoil force, which can easily cause the nozzle 21 to swing or become difficult to control. The handle 23 can be used to stabilize and control the nozzle 21, improving the accuracy and safety of fire extinguishing.

[0055] In related technologies, fire extinguishers placed directly on the ground are prone to tipping over due to accidental collisions, posing not only safety hazards but also potentially adversely affecting their internal pressure stability. In this application, if... Figure 1As shown, the fire extinguishing device also includes a fixing component 9, which is connected to the fire extinguisher body 1 and is used to fix it to the external wall. That is, the fixing component 9 securely connects the entire fire extinguishing device to the external wall, preventing the fire extinguishing device from tipping over when placed, thus improving the safety and stability of the fire extinguishing device during storage.

[0056] Furthermore, such as Figure 7 As shown, to facilitate the placement of the fire extinguisher body 1, in one embodiment, the fixing assembly 9 includes a base 91, a fixing block 92, and fasteners. The base 91 has a placement groove 911, into which a portion of the fire extinguisher body 1 is inserted, and the base 91 supports the fire extinguisher body 1. The fixing block 92 is connected to the outer wall of the base 91, and the fasteners are used to fix the fixing block 92 to the external wall. Figure 7 As shown, the fixing block 92 has a through hole 921. Expansion bolts can be used as fasteners. When it is necessary to fix the fire extinguishing device to the external wall, the expansion bolt can be passed through the through hole 921 and fixedly connected to the external wall, thus securing the fire extinguishing device. The fire extinguisher body 1 is inserted into the placement slot 911 of the fixing base, reducing the risk of tipping over due to external impacts. When fire extinguishing is required, the fire extinguisher body 1 can be directly removed from the placement slot 911 for fire extinguishing, making operation convenient and improving the safety and stability of the fire extinguishing device during storage.

[0057] Furthermore, to reduce the difficulty of connecting the fire extinguishing device to the external wall, in one embodiment, and / or, the fixing component 9 further includes an adhesive portion 93. The adhesive portion 93 is located on the side of the fixing block 92 facing away from the base 91, and is used to bond and fix the fixing block 92 to the external wall. Thus, when the fire extinguishing device needs to be stored, the base 91 can be fixed to the external wall using fasteners or the adhesive portion 93, preventing the fire extinguishing device from tipping over. It should be noted that a metal composite adhesive layer can be provided on the adhesive portion 93, which can then bond and fix the fixing block 92 to the external wall.

[0058] In some other embodiments, such as Figure 7 As shown, there can be multiple fixing blocks 92. Multiple fixing blocks 92 are arranged around the outer wall of the base 91. Each fixing block 92 is provided with a through hole 921 and an adhesive part 93, which can be fixed to the external wall from multiple directions, improving the convenience and stability of the fixed connection between the fire extinguishing device and the external wall.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fire extinguishing apparatus, characterized by, include: The fire extinguisher itself contains a fire extinguishing agent; The nozzle assembly is connected to the fire extinguisher body; The handle is connected to the body of the fire extinguisher. The pressure handle is rotatably connected to the handle and can switch between an initial position and an open position around the rotation axis; A limiting component is connected to the fire extinguisher body and is located on the rotation path of the handle; When the handle rotates from the initial position to the open position, the limiting component connects to the handle to keep the handle in the open position, thereby allowing the nozzle assembly to communicate with the fire extinguisher body and continuously spray extinguishing agent.

2. The fire extinguishing device according to claim 1, characterized in that The limiting component includes at least one set of limiting units, and the limiting unit includes a fixing plate, an elastic element, and a stop block; The fixing plate is connected to the fire extinguisher body; The elastic element is connected to the fixed plate and the stop block, and the elastic element has a tendency to push the stop block closer to the pressure handle. The stop block is slidably connected to the fixed plate; When the pressure handle rotates from the initial position to the open position, the elastic element pushes the stop block to switch from the first position to the second position, so that the stop block at least partially abuts against the side wall of the pressure handle facing away from the handle.

3. The fire extinguishing device of claim 2, wherein The fixing plate has a limiting groove on the side facing the pressure handle. The elastic element is installed in the limiting groove. One end of the elastic element abuts against the inner wall of the limiting groove, and the other end of the elastic element abuts against the stop block. At least a portion of the stop block is located in the limiting groove and can slide along the length direction of the limiting groove. The portion of the stop block located in the limiting groove is provided with a stop protrusion. The outer dimensions of the stop protrusion are larger than the opening size of the limiting groove. When the pressure handle is in the initial position, the stop block is in the first position, and at least a portion of the stop block protrudes from the limiting groove and abuts against the side wall of the pressure handle facing the fixing plate.

4. The fire extinguishing device according to claim 3, characterized in that, The limiting unit further includes a positioning block and an insert plate. The positioning block is connected to the fixing plate. The positioning block has a slot. The insert plate passes through the slot, and at least a portion of the insert plate abuts against the end of the stop block away from the elastic member, so that the stop block is in a third position. Specifically, the movable insert plate disengages from the stop block, and the stop block switches from the third position to the first position.

5. The fire extinguishing device according to claim 4, characterized in that, It also includes a limiting block, which is connected to the insert plate, protrudes from the slot, and abuts against the positioning block.

6. The fire extinguishing device according to claim 2, characterized in that, The number of limiting units is two sets, the two sets of limiting units are arranged opposite to each other, and the pressure handle is located between the two sets of limiting units.

7. The fire extinguishing device according to claim 2, characterized in that, It also includes a connected head assembly and a pressure gauge. The head assembly is connected to the fire extinguisher body and the nozzle assembly. An observation port is provided on the fixing plate, and the observation port is positioned directly opposite the dial of the pressure gauge. And / or, the fire extinguishing device further includes a latch, which is movably connected to the limiting component and extends through the handle to hold the handle in the initial position.

8. The fire extinguishing device according to claim 1, characterized in that, The nozzle assembly includes a nozzle, a nozzle, and a handle. One end of the nozzle is connected to the fire extinguisher body, and the nozzle is located at the opposite end of the nozzle. The handle is located on the side wall of the nozzle end near the nozzle.

9. The fire extinguishing device according to claim 1, characterized in that, It also includes a fixing component, which is connected to the fire extinguisher body and is used to fix it to the external wall.

10. The fire extinguishing device according to claim 9, characterized in that, The fixing component includes a base, a fixing block, and fasteners. The base has a placement groove, and a portion of the fire extinguisher body is inserted into the placement groove. The fixing block is connected to the outer wall of the base, and the fasteners are used to fix the fixing block to the outer wall. And / or, the fixing component further includes an adhesive portion disposed on the side of the fixing block facing away from the base, for bonding and fixing the fixing block to the external wall.

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