CN216061789U - Nozzle head of fire extinguisher - Google Patents
Nozzle head of fire extinguisher Download PDFInfo
- Publication number
- CN216061789U CN216061789U CN202120636677.XU CN202120636677U CN216061789U CN 216061789 U CN216061789 U CN 216061789U CN 202120636677 U CN202120636677 U CN 202120636677U CN 216061789 U CN216061789 U CN 216061789U
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- nozzle
- fire extinguisher
- connecting rod
- large gear
- nozzle head
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- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a nozzle head of a fire extinguisher, which comprises a connecting seat, wherein an airflow groove is arranged on the left side surface of the connecting seat, a nozzle pipe is arranged on the left side surface of the airflow groove, a nozzle panel is arranged on the inner surface of the nozzle pipe, a shifting piece is connected to the top end of the nozzle pipe in a penetrating manner, a bidirectional ratchet mechanism is arranged on the surface of the top end of the shifting piece, a baffle is arranged at the bottom of the shifting piece, a bearing at the bottom of the baffle is arranged at the inner bottom of the nozzle pipe, a shaft lever is arranged at the right side end of the airflow groove, a large gear and a fan blade are arranged on the surface of the shaft lever, the surface of the large gear is connected with a small gear in a meshing manner, and a single-rotation reciprocating screw rod is arranged on the inner surface of the small gear. This fire prevention extinguisher's nozzle head passes through the rotation that gas spun process drove the flabellum, drives the rotation of big pinion simultaneously for the in-process that gas was exported is constantly pressurized, raises the efficiency, and can change the scope that gas sprays through rotating the baffle, solves current fire extinguisher nozzle and can not last the pressurized problem.
Description
Technical Field
The utility model relates to the technical field of fire extinguisher nozzles, in particular to a nozzle head of a fire extinguisher.
Background
Fire extinguishers are used for fire fighting and rescue work and are often installed in various workshops and passageways with large flow of people, the extinguishers are generally composed of pull rings, nozzles and nozzle hoses, and the nozzles of the extinguishers are fixed in an installation mode and relatively single in function.
The prior nozzle of the carbon dioxide fire extinguisher has problems in use, such as the nozzle head of a fire extinguisher disclosed in publication No. CN209033611U and publication No. 20190628, in use, because the intermittent pressurization causes the fire extinguishing efficiency to be low, and the spray range of the nozzle cannot be changed.
Disclosure of Invention
The utility model aims to provide a nozzle head of a fire extinguisher, which solves the problems that the existing nozzle of the fire extinguisher in the background art cannot continuously pressurize and cannot change the spraying range.
In order to achieve the purpose, the utility model provides the following technical scheme: a nozzle head of a fire extinguisher comprises a connecting seat, wherein an airflow groove is installed on the left side surface of the connecting seat, a nozzle pipe is arranged on the left side surface of the airflow groove, a nozzle panel is arranged on the inner surface of the nozzle pipe, a shifting piece penetrates through and is connected with the top end of the nozzle pipe, a bidirectional ratchet mechanism is installed on the surface of the top end of the shifting piece, a baffle is installed at the bottom of the shifting piece, a bearing at the bottom of the baffle is installed at the inner bottom of the nozzle pipe, a shaft rod is installed at the right side end of the airflow groove, a large gear and a fan blade are installed on the surface of the shaft rod, a small gear is connected on the surface of the large gear in a meshed mode, a single-rotation reciprocating screw rod is installed on the inner surface of the small gear, a connecting rod is connected on the surface in a sliding mode, a piston is installed at the end portion of the connecting rod, a limiting rod is connected on the surface in a contact mode, the piston is installed in an air cylinder, and a first one-way valve is installed at the end portion of the air cylinder, and a second one-way valve is arranged on the surface of the airflow groove.
Preferably, the diameter of the gear wheel is smaller than that of the fan blade, circular holes are uniformly formed in the surface of the gear wheel, and the gear wheel is fixedly connected with the shaft rod.
Preferably, the number of teeth of the small gears is half of that of the large gears, the small gears are all mounted on the right side face of the airflow groove in a bearing mode, and the small gears and the large gears rotate in opposite directions.
Preferably, one end of the connecting rod is in sliding connection with the surface of the single-rotation reciprocating screw rod, the connecting rod is S-shaped, and the other end of the connecting rod is fixedly connected with the piston.
Preferably, both ends of the limiting rod are fixedly arranged on the surface of the air cylinder, the length of the limiting rod is smaller than that of the single-rotation reciprocating screw rod, and a groove matched with the shape of a lug arranged on the rear side surface of the connecting rod is formed in the front side surface.
Preferably, the first one-way valve is circular, a shaft connected with a bearing on the surface of the cylinder is arranged on one side surface of the first one-way valve, a bulge larger than the diameter of the cylinder is arranged on the other side of the first one-way valve, the cylinder is uniformly and fixedly installed on the inner wall of the airflow groove, the port of the cylinder is oblique, and the first one-way valve and the second one-way valve are opposite in direction.
Compared with the prior art, the utility model has the beneficial effects that: this fire prevention extinguisher's nozzle head passes through the rotation that gas spun process drove the flabellum, drives the rotation of big pinion simultaneously for the in-process that gas was exported is constantly pressurized, raises the efficiency, and can change the scope that gas sprays through rotating the baffle, solves current fire extinguisher nozzle and can not last the pressurized problem.
1. When the fire extinguisher is opened, gas in the fire extinguisher is conveyed to the nozzle pipe through the airflow channel to drive the fan blades to rotate and drive the large gear to rotate, the large gear drives the small gear to rotate, so that the single-rotation reciprocating screw rod rotates to drive the connecting rod to move left and right to drive the piston to move left and right, and the gas in the airflow channel is continuously pressurized through the cylinder, so that the gas in the fire extinguisher is continuously pressurized in the spraying process, and the fire extinguishing efficiency is improved;
2. make the piston can only pressurize in the air current groove through first check valve, can not take out gas back, simultaneously through the rotation that rotates two-way ratchet drive hob for the baffle rotates, can change the injection scope of nozzle panel, and when baffle and nozzle panel level, the injection scope of nozzle pipe is the biggest, and pressure is the biggest, and when the baffle rotated to and nozzle panel was perpendicular, the pressure of nozzle pipe was minimum, and the injection scope is the minimum.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic view of the nozzle tube and baffle connection of the present invention;
FIG. 3 is a schematic side view of a bull gear according to the present invention;
FIG. 4 is an enlarged view of point A of FIG. 1 according to the present invention.
In the figure: 1. a connecting seat; 2. an air flow groove; 3. a nozzle tube; 4. a nozzle face plate; 5. a shifting sheet; 6. a bidirectional ratchet mechanism; 7. a baffle plate; 8. a shaft lever; 9. a bull gear; 10. a fan blade; 11. a pinion gear; 12. a single-rotation reciprocating screw rod; 13. a connecting rod; 14. a piston; 15. a limiting rod; 16. a cylinder; 17. a first check valve; 18. a second one-way valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a nozzle head of a fire extinguisher comprises a connecting seat 1, an airflow groove 2 is installed on the left side face of the connecting seat 1, a nozzle pipe 3 is arranged on the left side face of the airflow groove 2, a nozzle panel 4 is arranged on the inner surface of the nozzle pipe 3, a shifting piece 5 is connected to the top end of the nozzle pipe 3 in a penetrating manner, a bidirectional ratchet mechanism 6 is installed on the surface of the top end of the shifting piece 5, a baffle 7 is installed at the bottom of the shifting piece 5, a bearing is installed at the bottom of the baffle 7 at the bottom of the nozzle pipe 3, a shaft rod 8 is installed at the right side end of the airflow groove 2, a gear wheel 9 and a fan blade 10 are installed on the surface of the shaft rod 8, a pinion 11 is connected to the surface of the gear wheel 9 in a meshing manner, a single-rotation reciprocating screw rod 12 is installed on the inner surface of the pinion 11, a connecting rod 13 is connected to the surface of the single-rotation reciprocating screw rod 12 in a sliding manner, a piston 14 is installed at the end of the connecting rod 13, a limiting rod 15 is connected to the surface in a contact manner, and the piston 14 is installed on a cylinder 16, and a first check valve 17 is installed at the end of the cylinder 16, and a second check valve 18 is arranged on the surface of the airflow groove 2.
The diameter of the large gear 9 is smaller than that of the fan blades 10, circular holes are evenly formed in the surface of the large gear 9, the large gear 9 is fixedly connected with the shaft lever 8, the large gear 9 rotates to drive the plurality of small gears 11 to rotate, and the small gears 11 rotate to drive the single-rotation reciprocating screw rod 12 to rotate.
The number of teeth of the small gear 11 is one half of that of the large gear 9, the small gears 11 are all mounted on the right side face of the airflow groove 2 in a bearing mode, and the rotating directions of the small gears 11 and the large gear 9 are opposite, so that the rotation of the small gears 11 drives the single-rotation reciprocating screw rod 12 to rotate, and the rotation of the single-rotation reciprocating screw rod 12 drives the connecting rod 13 to slide on the surface of the single-rotation reciprocating screw rod 12.
Connecting rod 13 one end and the reciprocal lead screw 12 surface sliding connection of single-turn, and connecting rod 13 is "S" shape to connecting rod 13 other end and piston 14 fixed connection, and connecting rod 13 trailing flank is provided with the lug, makes the removal about connecting rod 13 and drives the removal about piston 14, makes constantly have gas to turn left in cylinder 16 and carry.
Two ends of the limiting rod 15 are fixedly arranged on the surface of the cylinder 16, the length of the limiting rod 15 is smaller than that of the single-turn reciprocating screw rod 12, and the front side surface is provided with a groove matched with the shape of a convex block arranged on the rear side surface of the connecting rod 13, so that the connecting rod 13 can only continuously move left and right and cannot rotate under the action of the limiting rod 15.
The first check valve 17 is circular, a shaft connected with a surface bearing of the cylinder 16 is arranged on one side surface of the first check valve 17, a bulge larger than the diameter of the cylinder 16 is arranged on the other side of the first check valve 17, the cylinder 16 is uniformly and fixedly arranged on the inner wall of the airflow groove 2, the port of the cylinder 16 is oblique, the first check valve 17 and the second check valve 18 are oppositely guided, so that gas in the cylinder 16 can only be output under the action of the first check valve 17, and when the piston 14 moves rightwards, the first check valve 17 is in a closed state.
The working principle is as follows: the connecting seat 1 is arranged at the port of the fire extinguisher, when the fire extinguisher needs to be used, a pull ring of the fire extinguisher is pulled open, gas in the fire extinguisher can be conveyed to the left from the connecting seat 1 and passes through the airflow groove 2 in the conveying process;
the gas drives the fan blades 10 to rotate through the airflow grooves 2, the fan blades 10 drive the large gear 9 to rotate, the large gear 9 drives the plurality of small gears 11 to rotate, the small gears 11 drive the single-rotation reciprocating screw rod 12 to rotate, the single-rotation reciprocating screw rod 12 drives the connecting rod 13 to slide on the surface of the single-rotation reciprocating screw rod 12, and the connecting rod 13 can only continuously move left and right and cannot rotate under the action of the limiting rod 15;
the left and right movement of the connecting rod 13 drives the piston 14 to move left and right, so that gas is continuously conveyed to the left in the cylinder 16, the pressure of fire extinguishing gas in the airflow groove 2 is continuously increased, and the fire extinguishing efficiency is higher;
under the action of the first check valve 17, the gas in the cylinder 16 can only be output, under the action of the second check valve 18, the cylinder 16 can only suck gas, when the piston 14 moves to the right, the first check valve 17 is in a closed state, when the gas is output from the nozzle pipe 3 by increasing the pressure continuously, the two-way ratchet mechanism 6 can be rotated to drive the plectrum 5 to rotate, the baffle 7 is rotated to be in a horizontal state with the nozzle pipe 3, most holes of the nozzle panel 4 are covered, the pressure for the gas to be conveyed is maximum, the range is widest, when the baffle 7 is rotated to be in a vertical state with the nozzle pipe 3, the holes of the nozzle panel 4 cannot be covered, and the range for the gas to be sprayed from the nozzle pipe 3 is minimum, and the content which is not described in detail in the description belongs to the prior art which is well known to the technicians in the field.
It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A nozzle head of fire extinguisher, includes connecting seat (1), its characterized in that: the air flow groove (2) is installed on the left side face of the connecting seat (1), the nozzle pipe (3) is arranged on the left side face of the air flow groove (2), a nozzle panel (4) is arranged on the inner surface of the nozzle pipe (3), a shifting piece (5) is connected to the top end of the nozzle pipe (3) in a penetrating mode, a bidirectional ratchet mechanism (6) is installed on the surface of the top end of the shifting piece (5), a baffle (7) is installed at the bottom of the shifting piece (5), a bearing is installed at the bottom of the baffle (7) in the inner bottom of the nozzle pipe (3), a shaft lever (8) is installed at the right side end of the air flow groove (2), a large gear (9) and a fan blade (10) are installed on the surface of the shaft lever (8), a small gear (11) is connected to the surface of the large gear (9) in a meshing mode, a single-rotation reciprocating screw rod (12) is installed on the inner surface of the small gear (11), and a connecting rod (13) is connected to the surface of the single-rotation reciprocating screw rod (12) in a sliding mode, and piston (14) is installed to connecting rod (13) tip to connecting rod (13) surface contact is connected with gag lever post (15), piston (14) are installed in cylinder (16), and cylinder (16) tip installs first check valve (17), airflow channel (2) surface is provided with second check valve (18).
2. A nozzle head for a fire extinguisher as claimed in claim 1, wherein: the diameter of the large gear (9) is smaller than that of the fan blades (10), circular holes are uniformly formed in the surface of the large gear (9), and the large gear (9) is fixedly connected with the shaft lever (8).
3. A nozzle head for a fire extinguisher as claimed in claim 1, wherein: the number of teeth of the small gear (11) is one half of that of the large gear (9), the small gears (11) are mounted on the right side face of the airflow groove (2) in a bearing mode, and the rotation directions of the small gears (11) and the large gear (9) are opposite.
4. A nozzle head for a fire extinguisher as claimed in claim 1, wherein: one end of the connecting rod (13) is in sliding connection with the surface of the single-rotation reciprocating screw rod (12), the connecting rod (13) is S-shaped, and the other end of the connecting rod (13) is fixedly connected with the piston (14).
5. A nozzle head for a fire extinguisher as claimed in claim 1, wherein: two ends of the limiting rod (15) are fixedly arranged on the surface of the cylinder (16), the length of the limiting rod (15) is smaller than that of the single-rotation reciprocating screw rod (12), and a groove matched with a lug arranged on the rear side surface of the connecting rod (13) in shape is formed in the front side surface.
6. A nozzle head for a fire extinguisher as claimed in claim 1, wherein: the air flow groove is characterized in that the first one-way valve (17) is circular, a shaft connected with a surface bearing of the air cylinder (16) is arranged on one side face of the first one-way valve (17), a bulge larger than the diameter of the air cylinder (16) is arranged on the other side of the first one-way valve (17), the air cylinder (16) is uniformly and fixedly installed on the inner wall of the air flow groove (2), the port of the air cylinder (16) is oblique, and the first one-way valve (17) and the second one-way valve (18) are opposite in direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120636677.XU CN216061789U (en) | 2021-03-30 | 2021-03-30 | Nozzle head of fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120636677.XU CN216061789U (en) | 2021-03-30 | 2021-03-30 | Nozzle head of fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216061789U true CN216061789U (en) | 2022-03-18 |
Family
ID=80634897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120636677.XU Expired - Fee Related CN216061789U (en) | 2021-03-30 | 2021-03-30 | Nozzle head of fire extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216061789U (en) |
-
2021
- 2021-03-30 CN CN202120636677.XU patent/CN216061789U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |