Variable diffusion angle carbon dioxide fire extinguishing nozzle structure

Abstract

The utility model relates to fire -extinguishing nozzle technical field, and disclose a kind of carbon dioxide fire -extinguishing nozzle structure of variable diffusion angle, comprising: pipe body, fixed ring plate and plug rod, the gas outlet end of pipe body is connected with nozzle part, and the gas inlet end is equipped with connecting flange, the upper surface of pipe body is equipped with locating groove, the inner chamber of locating groove is additionally provided with locating rod, fixed ring plate is set in the inner chamber center of pipe body, and its surface is additionally provided with movable ring plate, and movable ring plate is rotatably connected between fixed ring plate, the outer surface of both is evenly provided with the communicating hole corresponding in shape and position, the bottom of locating rod is connected with fixed ring plate, plug rod is slidably connected in the inner wall of locating groove, the outer surface of locating rod is equipped with insertion hole, and plug rod is connected between insertion hole, this structure changes the coincidence state of communicating hole by rotating movable ring plate, adjusts the size and form of carbon dioxide outflow channel, realizes the change of diffusion angle, to adapt to different fire -extinguishing needs.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing nozzle technology, specifically a carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle. Background Technology

[0002] Carbon dioxide fire extinguishing nozzles are important components in the fire protection field used to directionally spray carbon dioxide extinguishing agent to the fire extinguishing area. They are widely used in fire protection of various buildings, equipment and specific places. Their structural design has a direct impact on the spray range, coverage effect and fire extinguishing efficiency of carbon dioxide.

[0003] Existing carbon dioxide fire extinguishing nozzles typically have a fixed diffusion angle, making it impossible to adjust the angle by changing the size and shape of the carbon dioxide outflow channel. This makes them unsuitable for fire extinguishing needs in different spaces or at different fire intensities. Furthermore, some adjustable-angle nozzles lack a stable positioning structure, making them susceptible to accidental rotation during use, which can alter the adjusted diffusion angle and affect the stability of the extinguishing effect. Therefore, a carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle, thereby solving the technical problem that the diffusion angle is usually fixed and cannot be changed by adjusting the size and shape of the carbon dioxide outflow channel, making it difficult to adapt to fire extinguishing needs under different spatial ranges or different fire intensities.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle, comprising:

[0006] The pipe body, and the nozzle part connected to the air outlet end of the pipe body, and the air inlet end of the pipe body is equipped with a connecting flange, and a positioning groove is opened on the upper surface of the pipe body, and a positioning rod is added to the inner cavity of the positioning groove.

[0007] A fixed ring plate is set at the center of the inner cavity of the tube body, and a movable ring plate is added to the surface of the fixed ring plate. The movable ring plate is rotatably connected to the fixed ring plate, and a connecting hole is evenly opened on the outer surface of the movable ring plate and the fixed ring plate. The shape and position of the connecting hole of the movable ring plate and the fixed ring plate are corresponding. The bottom end of the positioning rod is connected to the fixed ring plate.

[0008] The insertion rod is slidably connected to the inner wall of the positioning groove, and the outer surface of the positioning rod is provided with an insertion hole, and the insertion rod is inserted into the insertion hole.

[0009] In the initial state, the pipe body is connected to the carbon dioxide supply pipeline through the connecting flange at the air inlet end. The positioning rod is installed in the positioning groove cavity on the upper surface of the pipe body, and the bottom end of the positioning rod is connected to the fixed ring plate in the center of the inner cavity of the pipe body. The insertion rod is slidably connected to the inner wall of the positioning groove and inserted into the insertion hole on the outer surface of the positioning rod. At this time, the connecting hole on the surface of the fixed ring plate and the movable ring plate is in a specific overlapping state. Carbon dioxide is sprayed out from the nozzle part through this overlapping connecting hole, forming a fixed diffusion angle.

[0010] When it is necessary to change the diffusion angle, slide the insert rod to disengage it from the insertion hole on the positioning rod, thereby releasing the fixation of the positioning rod. Due to the rotatable connection between the movable ring plate and the fixed ring plate, rotating the positioning rod causes the fixed ring plate to rotate relative to the movable ring plate. The degree of overlap of the connecting holes on the surfaces of the fixed ring plate and the movable ring plate changes, thereby changing the flow path and range of carbon dioxide.

[0011] After adjusting to the desired diffusion angle, slide the insert rod to re-insert it into the corresponding hole of the positioning rod, and fix the positioning rod, thereby fixing the relative position of the fixed ring plate and the movable ring plate. At this time, carbon dioxide is ejected from the new overlapping connecting hole, forming a new diffusion angle.

[0012] Preferably, a flexible hose is connected between the pipe body and the nozzle section, and side connecting plates are added to both the front and back of the connection between the pipe body and the nozzle section. The flexible hose enables the connection between the pipe body and the nozzle section, allowing the medium inside the pipe body to be transferred to the nozzle section through the flexible hose; at the same time, side connecting plates are added to both the front and back of the connection between the pipe body and the nozzle section to form an auxiliary connection at the connection point between the pipe body and the nozzle section.

[0013] Preferably, the upper surface of the tube body is provided with an annular groove, and a convex plate is rotatably connected to the inner cavity of the annular groove. The annular groove is machined on the upper surface of the tube body, and then the convex plate is installed in the inner cavity of the annular groove, so that the convex plate can rotate with the annular groove as its moving space.

[0014] Preferably, an annular connecting plate is rotatably connected to the upper surface of the tube body, and the inner wall of the annular connecting plate is connected to a convex plate. The side connecting plates are rotatably connected to the front and back sides of the tube body and the annular connecting plate, respectively. The annular connecting plate is installed on the upper surface of the tube body, allowing it to rotate relative to the tube body. Next, the inner wall of the annular connecting plate is connected to the convex plate, so that the rotation of the annular connecting plate can drive the convex plate to move synchronously. Finally, the side connecting plates are connected to the front and back sides of the tube body and the annular connecting plate, and the connections between the side connecting plates and both are rotatable, allowing the nozzle to be adjusted for pitch angle.

[0015] Preferably, the inner wall of the positioning groove is uniformly provided with inner grooves, and a limiting groove is formed upward at the upper part of the inner cavity of the inner groove, and a limiting block is slidably connected to the inner cavity of the limiting groove. The inner grooves are uniformly machined on the inner wall of the positioning groove, and a limiting groove is formed upward at the upper part of the inner cavity of the inner groove. Then, the limiting block is installed in the inner cavity of the limiting groove, allowing the limiting block to slide along the inner cavity of the limiting groove.

[0016] Preferably, the insertion rod is slidably connected to the inner cavity of the inner groove, and the limiting block is connected to the insertion rod. A compression spring is added to the inner cavity of the inner groove, and the compression spring is in contact with the corresponding end of the insertion rod. The insertion rod is installed in the inner cavity of the inner groove so that the insertion rod can slide along the inner cavity of the inner groove; the limiting block is connected to the insertion rod so that the sliding of the insertion rod can drive the limiting block to slide synchronously in the limiting groove; a compression spring is added to the inner cavity of each inner groove, and the compression spring is in contact with the corresponding end of the insertion rod.

[0017] Compared with the prior art, this utility model provides a carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle, which has the following beneficial effects:

[0018] The variable diffusion angle carbon dioxide fire extinguishing nozzle structure has a fixed ring plate set in the center of the inner cavity of the tube body, and a movable ring plate rotatably connected to the fixed ring plate. The outer surfaces of both are uniformly provided with corresponding connecting holes in shape and position. By rotating the movable ring plate, the overlap state of the connecting holes on the movable ring plate and the fixed ring plate can be changed, thereby adjusting the size and shape of the carbon dioxide outflow channel and realizing the change of carbon dioxide diffusion angle to adapt to the fire extinguishing needs of different spatial ranges or fire levels.

[0019] The bottom end of the positioning rod is connected to the fixed ring plate and is set in the positioning groove on the upper surface of the tube. The insertion rod is slidably connected to the inner wall of the positioning groove and can be inserted into the insertion hole on the outer surface of the positioning rod. After adjusting the appropriate diffusion angle, the position of the movable ring plate can be fixed by the cooperation of the insertion rod and the insertion hole, so as to avoid the diffusion angle from changing due to accidental rotation during use and ensure the stability of the fire extinguishing effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the nozzle portion of this utility model from the left side.

[0022] Figure 3 This is a schematic diagram of the right side view of the tube body of this utility model;

[0023] Figure 4 This is a cross-sectional view of the internal structure of the tube body of this utility model;

[0024] Figure 5 This is a schematic diagram of the separation structure of the fixed ring plate and the movable ring plate of this utility model;

[0025] Figure 6 This is an enlarged cross-sectional view of the tube body of this utility model.

[0026] In the diagram: 1. Pipe body; 2. Nozzle section; 3. Hose; 4. Side connecting plate; 5. Ring connecting plate; 6. Protruding plate; 7. Ring groove; 8. Connecting flange; 9. Fixed ring plate; 10. Movable ring plate; 11. Connecting hole; 12. Positioning rod; 13. Insertion hole; 14. Positioning groove; 15. Inner groove; 16. Limiting groove; 17. Insertion rod; 18. Compression spring; 19. Limiting block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides a technical solution: a carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle, comprising: (See attached diagram) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The pipe body 1 and the nozzle part 2 connected to the air outlet end of the pipe body 1 are provided. The air inlet end of the pipe body 1 is equipped with a connecting flange 8, and a positioning groove 14 is provided on the upper surface of the pipe body 1. A positioning rod 12 is added to the inner cavity of the positioning groove 14.

[0029] A fixed ring plate 9 is set at the center of the inner cavity of the tube body 1, and a movable ring plate 10 is added to the surface of the fixed ring plate 9. The movable ring plate 10 is rotatably connected to the fixed ring plate 9, and a connecting hole 11 is evenly opened on the outer surface of the movable ring plate 10 and the fixed ring plate 9. The shape and position of the connecting hole 11 of the movable ring plate 10 and the fixed ring plate 9 are corresponding. The bottom end of the positioning rod 12 is connected to the fixed ring plate 9.

[0030] The insertion rod 17 is slidably connected to the inner wall of the positioning groove 14, and the outer surface of the positioning rod 12 is provided with an insertion hole 13, and the insertion rod 17 is inserted into the insertion hole 13.

[0031] In the initial state, the pipe body 1 is connected to the carbon dioxide supply pipeline through the connecting flange 8 at the air inlet end. The positioning rod 12 is installed in the inner cavity of the positioning groove 14 on the upper surface of the pipe body 1, and the bottom end of the positioning rod 12 is connected to the fixed ring plate 9 at the center of the inner cavity of the pipe body 1. The insertion rod 17 is slidably connected to the inner wall of the positioning groove 14 and inserted into the insertion hole 13 on the outer surface of the positioning rod 12. At this time, the connecting hole 11 on the surface of the fixed ring plate 9 and the movable ring plate 10 is in a specific overlapping state. Carbon dioxide is sprayed out from the nozzle part 2 through this overlapping connecting hole 11, forming a fixed diffusion angle.

[0032] When it is necessary to change the diffusion angle, the sliding rod 17 is disengaged from the insertion hole 13 on the positioning rod 12, and the positioning rod 12 is released from fixation. Since the movable ring plate 10 and the fixed ring plate 9 are rotatably connected, the positioning rod 12 is rotated, which drives the fixed ring plate 9 to rotate relative to the movable ring plate 10. The degree of overlap of the connecting hole 11 on the surface of the fixed ring plate 9 and the movable ring plate 10 changes, thereby changing the flow path and range of carbon dioxide.

[0033] After adjusting to the required diffusion angle, slide the insert rod 17 to re-insert it into the corresponding insertion hole 13 of the positioning rod 12, fix the positioning rod 12, thereby fixing the relative position of the fixed ring plate 9 and the movable ring plate 10. At this time, carbon dioxide is ejected from the new overlapping connecting hole 11, forming a new diffusion angle.

[0034] By rotating the fixed ring plate 9 and the movable ring plate 10, and by setting the corresponding connecting holes 11 on their surfaces, the carbon dioxide diffusion angle can be flexibly adjusted. This allows for adjusting the appropriate diffusion angle according to different fire extinguishing scenarios and needs, thereby improving the targeting and efficiency of fire extinguishing.

[0035] Please see Figure 2 A flexible hose 3 connects the pipe body 1 and the nozzle part 2, and side connecting plates 4 are added to both the front and back of the connection between the pipe body 1 and the nozzle part 2. The flexible hose 3 connects the pipe body 1 and the nozzle part 2, allowing the medium inside the pipe body 1 to be transferred to the nozzle part 2. Simultaneously, the side connecting plates 4 on the front and back of the connection between the pipe body 1 and the nozzle part 2 provide auxiliary connection. The flexible hose 3 allows for a certain degree of relative movement between the pipe body 1 and the nozzle part 2, facilitating adjustments to the orientation and position of the nozzle part 2 according to usage requirements. The side connecting plates 4 on the front and back of the connection enhance the stability of the connection between the pipe body 1 and the nozzle part 2, reducing relative shaking caused by stress during use and improving the overall structural robustness.

[0036] Please see Figure 3The upper surface of the tube body 1 has an annular groove 7, and a protruding plate 6 is rotatably connected to the inner cavity of the annular groove 7. The annular groove 7 is machined on the upper surface of the tube body 1, and then the protruding plate 6 is installed in the inner cavity of the annular groove 7, allowing the protruding plate 6 to rotate within the annular groove 7. The annular groove 7 provides a stable base for the installation and movement of the protruding plate 6, ensuring more directional guidance during its rotation. The rotatable design of the protruding plate 6 allows it to adjust its angle and position according to actual usage needs, increasing the functionality and adjustment flexibility of the upper surface structure of the tube body 1. A connecting plate 5 is rotatably connected to the upper surface of the tube body 1, and the inner wall of the connecting plate 5 is connected to the protruding plate 6. Side connecting plates 4 are rotatably connected to the front and back sides of the tube body 1 and the connecting plate 5, respectively. The annular connecting plate 5 is installed on the upper surface of the tube body 1, allowing it to rotate relative to the tube body 1. Next, the inner wall of the annular connecting plate 5 is connected to the convex plate 6, so that the rotation of the annular connecting plate 5 drives the convex plate 6 to move synchronously. Finally, the side connecting plate 4 is connected to the front and back sides of both the tube body 1 and the annular connecting plate 5, with the connection between the side connecting plate 4 and both being rotatable, allowing the nozzle part 2 to adjust its pitch angle. The connection between the annular connecting plate 5 and the convex plate 6 achieves linkage between the two, making the adjustment of the convex plate 6 more integrated and convenient. The side connecting plate 4 forms rotatable connections with both the tube body 1 and the annular connecting plate 5, which not only limits and guides the rotation of the annular connecting plate 5 but also does not restrict the relative movement between the annular connecting plate 5 and the tube body 1, ensuring the smoothness of the overall structural adjustment and further enhancing the coordination between the various components.

[0037] Please see Figure 6The inner wall of the positioning groove 14 is uniformly provided with inner grooves 15, and a limiting groove 16 is formed upward at the upper part of the inner cavity of the inner groove 15. A limiting block 19 is slidably connected to the inner cavity of the limiting groove 16. The inner grooves 15 are uniformly machined on the inner wall of the positioning groove 14, and the limiting groove 16 is formed upward at the upper part of the inner cavity of the inner groove 15. Then, the limiting block 19 is installed in the inner cavity of the limiting groove 16, so that the limiting block 19 can slide along the inner cavity of the limiting groove 16. The opening of the inner grooves 15 provides space for the installation of subsequent related components, which facilitates the compact design of the overall structure. The limiting groove 16 plays a role in limiting the sliding path of the limiting block 19, ensuring that the limiting block 19 can only move in a specific direction, avoiding its deviation or falling off during operation, and improving the stability and reliability of the limiting block 19. The insertion rod 17 is slidably connected to the inner cavity of the inner groove 15, and the limiting block 19 is connected to the insertion rod 17. A compression spring 18 is added to the inner cavity of the inner groove 15, and the compression spring 18 is in contact with the corresponding end of the insertion rod 17. The insertion rod 17 is installed in the inner cavity of the inner groove 15, allowing it to slide along the inner cavity of the inner groove 15. The limiting block 19 is connected to the insertion rod 17, so that the sliding of the insertion rod 17 can drive the limiting block 19 to slide synchronously in the limiting groove 16. A compression spring 18 is added to the inner cavity of each inner groove 15, and the compression spring 18 is attached to the end of the corresponding insertion rod 17. The connection between the insertion rod 17 and the limiting block 19 realizes the synchronous movement of the two, so that the position adjustment of the limiting block 19 can be controlled by the movement of the insertion rod 17, making the operation more convenient. The compression spring 18 can provide a continuous elastic force to the insertion rod 17. When the insertion rod 17 is subjected to external force and its position changes, the compression spring 18 can push the insertion rod 17 and the limiting block 19 to automatically reset, enhancing the automatic adjustment capability and ease of use of the structure. At the same time, the compression spring 18 can also buffer the movement of the insertion rod 17, reducing rigid collisions between components.

[0038] In this scheme: In the initial state, the pipe body 1 is connected to the carbon dioxide supply pipeline through the connecting flange 8 at the air inlet end. The pipe body 1 and the nozzle part 2 are connected through the hose 3. At this time, the connecting hole 11 on the surface of the fixed ring plate 9 and the movable ring plate 10 are in a specific overlapping state. The carbon dioxide passes through the pipe body 1, the connecting hole 11 on the surface of the fixed ring plate 9 and the movable ring plate 10, and the hose 3 in sequence and is sprayed out from the nozzle part 2, forming a fixed diffusion angle. When it is necessary to change the diffusion angle, the sliding limit block 19 slides along the inner cavity of the limit groove 16, and the insertion rod 17 slides along the inner cavity of the inner groove 15 to compress the compression spring 18. The insertion rod 17 disengages from the insertion hole 13 on the positioning rod 12 and releases the fixation of the positioning rod 12.

[0039] Rotating the positioning rod 12 causes the fixed ring plate 9 to rotate relative to the movable ring plate 10. The degree of overlap of the connecting holes 11 on the surfaces of the fixed ring plate 9 and the movable ring plate 10 changes, thereby altering the flow path and range of carbon dioxide. After adjusting to the required diffusion angle, the insertion rod 17 is released. Under the action of the compression spring 18, the insertion rod 17 slides along the inner cavity of the inner groove 15 and drives the limiting block 19 to slide back along the inner cavity of the limiting groove 16. The insertion rod 17 is reinserted into the corresponding insertion hole 13 of the positioning rod 12 to fix the positioning rod 12, thereby fixing the relative position of the fixed ring plate 9 and the movable ring plate 10. At this time, carbon dioxide is ejected from the nozzle part 2 through the hose 3 from the connecting holes 11 in the new overlapping state, forming a new diffusion angle.

[0040] When it is necessary to adjust the orientation and position of the nozzle part 2, rotate the ring connecting plate 5 so that it rotates relative to the pipe body 1. The ring connecting plate 5 drives the convex plate 6 to rotate in the inner cavity of the ring groove 7. At the same time, the side connecting plate 4 rotates relative to the pipe body 1 and the ring connecting plate 5 respectively. The hose 3 rotates with the nozzle part 2 and adjusts the pitch angle of the nozzle part 2.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide fire extinguishing nozzle structure with a variable diffusion angle, characterized in that, include: The pipe body (1) and the nozzle part (2) connected to the air outlet end of the pipe body (1) are provided with a connecting flange (8) at the air inlet end of the pipe body (1) and a positioning groove (14) is provided on the upper surface of the pipe body (1), and a positioning rod (12) is provided in the inner cavity of the positioning groove (14). A fixed ring plate (9) is set in the center of the inner cavity of the tube body (1), and a movable ring plate (10) is added to the surface of the fixed ring plate (9). The movable ring plate (10) is rotatably connected to the fixed ring plate (9), and a connecting hole (11) is evenly opened on the outer surface of the movable ring plate (10) and the fixed ring plate (9). The shape and position of the connecting hole (11) of the movable ring plate (10) and the fixed ring plate (9) are corresponding. The bottom end of the positioning rod (12) is connected to the fixed ring plate (9). The insertion rod (17) is slidably connected to the inner wall of the positioning groove (14), and the outer surface of the positioning rod (12) is provided with an insertion hole (13), and the insertion rod (17) and the insertion hole (13) are inserted and connected.

2. The variable diffusion angle carbon dioxide fire extinguishing nozzle structure according to claim 1, characterized in that: A flexible hose (3) is connected between the tube body (1) and the nozzle part (2), and a side connecting plate (4) is added to both the front and back of the connection between the tube body (1) and the nozzle part (2).

3. The structure of a carbon dioxide fire extinguishing nozzle with a variable diffusion angle according to claim 2, characterized in that: The upper surface of the tube body (1) is provided with an annular groove (7), and a protrusion (6) is rotatably connected to the inner cavity of the annular groove (7).

4. The variable diffusion angle carbon dioxide fire extinguishing nozzle structure according to claim 3, characterized in that: The upper surface of the tube body (1) is rotatably connected to a ring connecting plate (5), and the inner wall of the ring connecting plate (5) is connected to a protruding plate (6). The side connecting plate (4) is rotatably connected to the front and back sides of the tube body (1) and the ring connecting plate (5) respectively.

5. The structure of a carbon dioxide fire extinguishing nozzle with a variable diffusion angle according to claim 1, characterized in that: The inner wall of the positioning groove (14) is uniformly provided with an inner groove (15), and a limiting groove (16) is provided on the upper part of the inner cavity of the inner groove (15), and a limiting block (19) is slidably connected to the inner cavity of the limiting groove (16).

6. The structure of a carbon dioxide fire extinguishing nozzle with a variable diffusion angle according to claim 5, characterized in that: The insertion rod (17) is slidably connected to the inner cavity of the inner groove (15), and the limiting block (19) is connected to the insertion rod (17). A compression spring (18) is added to the inner cavity of the inner groove (15), and the compression spring (18) is in contact with the end of the corresponding insertion rod (17).

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