A steady flow fire monitor head

Abstract

The utility model discloses a steady flow fire monitor head belongs to fire fighting equipment technical field, and its technical scheme main points are: including cannon head main part, cannon barrel, driving part and control assembly, cannon barrel slidingly arranged at the outside of cannon head main part, and driving part is used for driving cannon barrel relative cannon head main part sliding, and the water flow channel is in cannon head main part, and control assembly is used for controlling the opening and closing of the water outlet of water flow channel, and the water flow channel is provided with flow guide piece and steady flow piece in proper order along the water flow direction, and the flow guide piece has the guide surface for the water flow direction, and the steady flow piece has a plurality of first shunt plate and a plurality of second shunt plate, and a plurality of first shunt plate and a plurality of second shunt plate are all used for the water flow in water flow channel is shunted, and the cannon head can flow through the water flow steady flow, reduces the energy loss, improves the injection efficiency, and effectively limits the vibration caused by pressure fluctuation.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection equipment technology, and specifically relates to a flow-stabilizing fire monitor head. Background Technology

[0002] Fire monitors, as key equipment in modern fire protection systems, play an important role in extinguishing large-scale fires (such as those in petrochemical plants, warehouses, and airports). They are mainly composed of two parts: the monitor body and the monitor head.

[0003] Chinese Patent No. CN213698659U discloses a fire monitor head, including a monitor body, a barrel, a water outlet baffle, and a screw. The screw is fixedly connected to the monitor body, and the water outlet baffle is fixedly connected to the screw. The monitor body has a rectifier section, an acceleration section, a constant velocity section, and an outlet section arranged sequentially along the water outlet direction. The cross-sectional area of ​​the acceleration section gradually decreases from the position near the rectifier section to the position near the constant velocity section. The outlet section is funnel-shaped, and the water outlet baffle is located on the outlet section. The water outlet baffle includes a concave section, an inclined section, a convex section, and a direct flow section connected sequentially along the water outlet direction of the monitor body. The cross-sectional area of ​​the direct flow section is larger than the cross-sectional area of ​​the constant velocity section.

[0004] The above technical solution has the following defects: the lack of a flow stabilizing structure inside the gun head will cause irregular eddies and turbulence to be generated during the water flow, resulting in reduced jetting efficiency and increased energy loss. Moreover, the pressure fluctuations caused by turbulence may cause the gun head to vibrate, affecting the structural stability and service life of the gun head. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a flow-stabilizing fire monitor head. The technical problem to be solved by this utility model is: how to effectively stabilize the water flow passing through the monitor head.

[0006] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: a flow-stabilizing fire monitor head, comprising a monitor head body, a monitor barrel, a driving component, and a control component. The monitor barrel is slidably disposed on the outside of the monitor head body. The driving component is used to drive the monitor barrel to slide relative to the monitor head body. The monitor head body has a water passage. The control component is used to control the opening and closing of the outlet of the water passage. A flow guide and a flow stabilizer are sequentially arranged in the water passage along the water flow direction. The flow guide has a guide surface for guiding the water flow. The flow stabilizer has a plurality of first diversion plates and a plurality of second diversion plates. The plurality of first diversion plates and the plurality of second diversion plates are all used to divert the water flow in the water passage.

[0007] In the aforementioned type of steady-flow fire monitor, several first diversion plates and several second diversion plates are evenly distributed circumferentially along the water flow channel.

[0008] In the aforementioned type of flow-stabilizing fire monitor head, the control component includes a slidably disposed plug, a return spring, a connecting rod, and a cover. The plug is used to block the outlet of the water flow channel. The cover is connected to the flow stabilizer via the connecting rod. The return spring is disposed between the plug and the cover. When the plug slides away from the outlet of the water flow channel, the plug, in conjunction with the cover, presses the return spring. The return spring is used to cause the plug to slide back to its original position, thereby re-blocking the outlet of the water flow channel.

[0009] In the aforementioned type of flow-stabilizing fire monitor head, one end of the plug is fitted onto the outside of the flow-stabilizing component, and the other end of the plug is fitted onto the outside of the baffle.

[0010] In the aforementioned type of flow-stabilizing fire monitor head, the return spring is sleeved on the outside of the connecting rod, the plug is provided with a positioning step one, the cover is provided with a positioning step two, one end of the return spring abuts against the step surface of the positioning step one, and the other end of the return spring abuts against the step surface of the positioning step two.

[0011] In the aforementioned type of steady-flow fire monitor head, the driving component includes a housing, a rotary drive source, a lead screw, a reduction gear set, a nut, and a linkage rod. The rotary drive source is mounted on the housing, and the output end of the rotary drive source is connected to the lead screw via the reduction gear set. The nut is threadedly engaged with the lead screw and is slidably disposed within the housing. The nut is connected to the linkage rod, and the linkage rod is connected to the monitor barrel.

[0012] In the aforementioned type of steady-flow fire monitor head, a connecting part is integrally formed on the nut, a sliding groove is provided on the connecting part, and a sliding rail adapted to the sliding groove is provided inside the outer shell, and the sliding rail and the sliding groove are slidably engaged.

[0013] In the aforementioned type of flow-stabilizing fire monitor head, a connecting ring is threaded to the end of the monitor head body, and a limiting step is provided inside the monitor head body. The connecting ring cooperates with the limiting step to limit the flow stabilizing component.

[0014] In the aforementioned type of steady-flow fire monitor head, a connector is rotatably mounted on the connecting ring.

[0015] In the aforementioned type of flow-stabilizing fire monitor head, the flow guide is threadedly connected to the flow stabilizer.

[0016] In summary, the advantages of this utility model compared to the prior art are as follows: First, the water flow in the water passage is guided by the guide surface on the guide component, and then the water is divided by several first diversion plates and several second diversion plates. This achieves the stabilization of the water flow passing through the gun head, reduces energy loss, improves spraying efficiency, and effectively limits vibration caused by pressure fluctuations. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of an embodiment; Figure 2 This is a schematic diagram of the structure of an embodiment; Figure 3 This is a schematic diagram of the current stabilizer in an embodiment; Figure 4 This is a schematic diagram of the nut structure in an embodiment.

[0018] Reference numerals: 1. Gun head body; 2. Gun barrel; 3. Drive component; 31. Outer shell; 32. Rotary drive source; 33. Lead screw; 34. Reduction gear set; 35. Nut; 36. Linkage rod; 4. Control component; 41. Plug; 42. Return spring; 43. Connecting rod; 44. Cover; 5. Water passage; 6. Guide component; 7. Flow stabilizer; 8. Guide surface; 9. First diverter plate; 10. Second diverter plate; 11. Positioning step one; 12. Positioning step two; 13. Connecting part; 14. Slide groove; 15. Slide rail; 16. Connecting ring; 17. Limiting step; 18. Connecting head. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] A type of steady-flow fire monitor, such as Figures 1 to 4 As shown, it includes a gun head body 1, a gun barrel 2, a drive component 3, and a control component 4.

[0021] The end of the gun head body 1 is threaded with a connecting ring 16, and a connector 18 is rotatably mounted on the connecting ring 16. The connector 18 is threadedly connected to the external water inlet pipe. Since the connector 18 can rotate relative to the connecting ring 16, the operation of connecting the external water inlet pipe is simpler, more convenient and faster.

[0022] The main body 1 of the gun head has a water passage 5. A guide 6 and a flow stabilizer 7 are arranged sequentially in the water passage 5 along the water flow direction. A limiting step 17 is provided in the main body 1 of the gun head. A connecting ring 16 cooperates with the limiting step 17 to limit the flow stabilizer 7. One end of the flow stabilizer 7 abuts against the step surface of the limiting step 17, and the other end of the flow stabilizer 7 abuts against the end of the connecting ring 16, thereby ensuring that the position of the flow stabilizer 7 is stable in the water passage 5. The guide 6 is threaded to the flow stabilizer 7, so the position of the guide 6 in the water passage 5 can also be stabilized.

[0023] The guide member 6 has a guide surface 8 for guiding the water flow. The guide surface 8 is preferably an arc-shaped surface. When the water flows through, it acts on the guide surface 8 and guides the water flow to disperse to the surrounding area, thereby achieving the effect of stabilizing the flow and avoiding abnormal displacement or vibration of the fire monitor due to direct impact of the water flow.

[0024] The flow stabilizer 7 has several first diverter plates 9 and several second diverter plates 10. The first diverter plates 9 and several second diverter plates 10 are evenly distributed along the circumference of the water passage 5. The first diverter plates 9 and several second diverter plates 10 are used to divert the water flow in the water passage 5. Through the diversion effect of the first diverter plates 9 and the second diverter plates 10, the formation of turbulence and eddies is suppressed, the water flow passing through the gun head is stabilized, energy loss is reduced, the jetting efficiency is improved, and vibration caused by pressure fluctuations is effectively limited.

[0025] The control component 4 is used to control the opening and closing of the outlet of the water passage 5. The control component 4 includes a slidably disposed plug 41, a return spring 42, a connecting rod 43, and a baffle 44. The plug 41 is used to block the outlet of the water passage 5. One end of the plug 41 is fitted on the outside of the flow stabilizer 7, and the other end of the plug 41 is fitted on the outside of the baffle 44, thereby guiding the plug 41 and ensuring the stability of the sliding of the plug 41.

[0026] The baffle 44 is connected to the flow stabilizer 7 via the connecting rod 43. Specifically, one end of the connecting rod 43 is threaded to the baffle 44, and the other end of the connecting rod 43 is threaded to the flow stabilizer 7.

[0027] The return spring 42 is disposed between the plug 41 and the cover 44. The return spring 42 is sleeved on the outside of the connecting rod 43. The plug 41 is provided with a positioning step 11, and the cover 44 is provided with a positioning step 2 12. One end of the return spring 42 abuts against the step surface of the positioning step 11, and the other end of the return spring 42 abuts against the step surface of the positioning step 2 12, thereby ensuring the stability of the return spring 42.

[0028] Under normal conditions, the plug 41 blocks the outlet of the water passage 5, and the outlet of the water passage 5 is closed. When water flows into the water passage 5, the plug 41 slides away from the outlet of the water passage 5 under the action of the water flow. The plug 41, together with the cover 44, squeezes the return spring 42, and the outlet of the water passage 5 is opened. Conversely, when the water flow is closed, the force generated by the elastic deformation of the return spring 42 acts on the plug 41, thereby causing the plug 41 to slide back to its original position until the plug 41 re-blocks the outlet of the water passage 5.

[0029] The barrel 2 is slidably disposed on the outside of the gun head body 1, and the driving component 3 is used to drive the barrel 2 to slide relative to the gun head body 1.

[0030] In this embodiment, the driving component 3 includes a housing 31, a rotary driving source 32, a lead screw 33, a reduction gear set 34, a nut 35, and a linkage rod 36. The housing 31 is mounted on the gun head body 1, and the rotary driving source 32 is mounted on the housing 31. The rotary driving source 32 is preferably a motor. Alternatively, other driving sources with rotation functions can be used. The output end of the rotary driving source 32 is connected to the lead screw 33 via the reduction gear set 34. It should be noted that the reduction gear set 34 consists of several gears that mesh with each other. This will not be elaborated further. The nut 35 is threadedly engaged with the lead screw 33 and is slidably disposed inside the housing 31. The nut 35 is connected to the linkage rod 36, and the linkage rod 36 is connected to the gun barrel 2.

[0031] The output end of the rotary drive source 32 rotates and transmits power to the lead screw 33 through the reduction gear set 34. The lead screw 33 rotates, causing the nut 35 to move along the axis of the lead screw 33. The nut 35 drives the barrel 2 to slide through the linkage rod 36. As the barrel 2 slides, the position of the barrel 2 relative to the main body 1 of the cannon changes, thereby adjusting the angle of the water jet sprayed from the outlet of the water passage 5.

[0032] The nut 35 has an integrally formed connecting part 13, and a sliding groove 14 is provided on the connecting part 13. The outer shell 31 is provided with a sliding rail 15 that is adapted to the sliding groove 14, and the sliding rail 15 slides in conjunction with the sliding groove 14 to guide and limit the nut 35 in the circumferential direction.

[0033] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A flow-stabilizing fire monitor head, characterized in that: The device includes a gun head body (1), a gun barrel (2), a drive component (3), and a control component (4). The gun barrel (2) is slidably disposed on the outside of the gun head body (1). The drive component (3) is used to drive the gun barrel (2) to slide relative to the gun head body (1). The gun head body (1) has a water passage (5). The control component (4) is used to control the opening and closing of the outlet of the water passage (5). The water passage (5) is provided with a flow guide (6) and a flow stabilizer (7) in sequence along the water flow direction. The flow guide (6) has a guide surface (8) for guiding the water flow. The flow stabilizer (7) has a plurality of first diversion plates (9) and a plurality of second diversion plates (10). The plurality of first diversion plates (9) and the plurality of second diversion plates (10) are all used to divert the water flow in the water passage (5).

2. The flow-stabilizing fire monitor head according to claim 1, characterized in that: Several first diversion plates (9) and several second diversion plates (10) are evenly distributed along the circumference of the water passage (5).

3. A flow-stabilizing fire monitor head according to any one of claims 1 or 2, characterized in that: The control component (4) includes a slidably disposed plug (41), a return spring (42), a connecting rod (43), and a cover (44). The plug (41) is used to block the outlet of the water passage (5). The cover (44) is connected to the flow stabilizer (7) through the connecting rod (43). The return spring (42) is disposed between the plug (41) and the cover (44). When the plug (41) slides away from the outlet of the water passage (5), the plug (41) cooperates with the cover (44) to squeeze the return spring (42). The return spring (42) is used to make the plug (41) slide back and thus re-seal the outlet of the water passage (5).

4. A flow-stabilizing fire monitor head according to claim 3, characterized in that: One end of the plug (41) is fitted onto the outside of the flow stabilizer (7), and the other end of the plug (41) is fitted onto the outside of the cover (44).

5. A flow-stabilizing fire monitor head according to claim 3, characterized in that: The reset spring (42) is sleeved on the outside of the connecting rod (43). The plug (41) is provided with a positioning step one (11), and the cover (44) is provided with a positioning step two (12). One end of the reset spring (42) abuts against the step surface of the positioning step one (11), and the other end of the reset spring (42) abuts against the step surface of the positioning step two (12).

6. A flow-stabilizing fire monitor head according to claim 1, characterized in that: The driving component (3) includes a housing (31), a rotary drive source (32), a lead screw (33), a reduction gear set (34), a nut (35), and a linkage rod (36). The rotary drive source (32) is mounted on the housing (31). The output end of the rotary drive source (32) is connected to the lead screw (33) through the reduction gear set (34). The nut (35) is threadedly engaged with the lead screw (33). The nut (35) is slidably disposed inside the housing (31). The nut (35) is connected to the linkage rod (36), and the linkage rod (36) is connected to the barrel (2).

7. A flow-stabilizing fire monitor head according to claim 6, characterized in that: The nut (35) has an integrally formed connecting part (13), the connecting part (13) has a sliding groove (14), the outer shell (31) is provided with a slide rail (15) that is adapted to the sliding groove (14), and the slide rail (15) and the sliding groove (14) are slidably engaged.

8. A flow-stabilizing fire monitor head according to any one of claims 1 or 2, characterized in that: The end of the gun head body (1) is threaded with a connecting ring (16), and a limiting step (17) is provided inside the gun head body (1). The connecting ring (16) cooperates with the limiting step (17) to limit the flow stabilizer (7).

9. A flow-stabilizing fire monitor head according to claim 8, characterized in that: A connector (18) is rotatably mounted on the connecting ring (16).

10. A flow-stabilizing fire monitor head according to claim 8, characterized in that: The flow guide (6) is threadedly connected to the flow stabilizer (7).

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