CN211410805U

CN211410805U - Fire extinguisher nozzle

Info

Publication number: CN211410805U
Application number: CN201922281181.0U
Authority: CN
Inventors: 杨光; 孙建; 于宏洲; 蔡慧颖; 邸雪影
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-04
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to the technical field of fire-fighting equipment parts, in particular to a fire extinguisher spray head, which can realize the thorough sealing of a fire hydrant by pushing a secondary sliding rod and a secondary sealing ball through a secondary spring and pushing a primary sliding rod and a primary sealing ball through a primary spring; the upper end of the nozzle of the fire extinguisher can be sealed through the sealing gasket and the sealing guide sleeve, so that the effective pressure of the fire hydrant when fire extinguishing substances are sprayed out is ensured; adjust the extension length of extension pipe of putting out a fire according to the use needs, press down the pressure pole, press the compression of pressure pole and press spring to press contact of pressure pole and one-level sealing ball, continue to press, because the stiffness coefficient of one-level spring is greater than the stiffness coefficient of second grade spring, so the second grade spring is compressed earlier, realize second grade sealed chamber and fire extinguisher intercommunication, when continuing to press the pressure pole, the one-level spring just can be compressed, one-level sealed chamber and second grade sealed chamber intercommunication, fire extinguishing pipe and one-level sealed chamber intercommunication, realize the blowout of the material of putting out a fire.

Description

Fire extinguisher nozzle

Technical Field

The utility model relates to a fire-fighting equipment part technical field, more specifically the fire extinguisher shower nozzle that says so.

Background

The utility model discloses a utility model with publication number CN203108052U discloses a fire extinguisher shower nozzle, including fixing base and shower nozzle, the shower nozzle sets up on the fixing base, and the fixing base rear end has the external screw thread, and the shower nozzle is tubaeform, and the shower nozzle is equipped with fixed cover outward, has the discharge orifice on the shower nozzle, and the shower nozzle front end has the discharge orifice. The utility model provides a current liquid fire extinguisher shower nozzle spray liquid level less spray the not strong problem of liquid stream, the design is simple, and is rational in infrastructure, through will set up the discharge orifice in the injector head, the shower nozzle front end is equipped with the discharge orifice and enlarges through the discharge orifice, increases spray area, improves the fire extinguishing effect. The utility model has the defect that the fire extinguisher cannot be thoroughly sealed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire extinguisher nozzle has and carries out thorough sealed advantage to the fire extinguisher.

The purpose of the utility model is realized through the following technical scheme:

a fire extinguisher nozzle comprises an air injection pipeline mechanism, an opening mechanism and a multistage sealing mechanism, wherein the air injection pipeline mechanism is fixedly connected to a fire extinguisher, the opening mechanism is slidably connected to the air injection pipeline mechanism, the multistage sealing mechanism comprises a first-stage sealing ball, a first-stage sliding rod, a first-stage spring, a first-stage sliding groove, a second-stage sealing ball, a second-stage sliding rod and a second-stage spring, the second-stage sliding rod is slidably connected to the air injection pipeline mechanism, the second-stage spring is arranged between the second-stage sliding rod and the air injection pipeline mechanism, the second-stage sealing ball is fixedly connected to the second-stage sliding rod, the lower end of the first-stage sliding groove is in spherical contact with the second-stage sealing ball, the first-stage sliding rod is slidably connected to the first-stage sliding groove, the, the upper end of the first-stage sealing ball is in line contact with the air injection pipeline mechanism, and the upper end of the first-stage sealing ball is in spherical contact with the opening mechanism.

The jet pipeline mechanism comprises a communicating pipe, a fire extinguishing extension pipe, a second-stage spring support, a second-stage sealing cavity and a first-stage sealing cavity, the lower end of the communicating pipe is fixedly connected to a fire extinguisher, the fire extinguishing pipe is fixedly connected to the side face of the communicating pipe, the second-stage spring support is fixedly connected to the lower end of the communicating pipe, a second-stage spring is arranged between a second-stage sliding rod and the second-stage spring support, the center of the communicating pipe is provided with the second-stage sealing cavity and the first-stage sealing cavity, the first-stage sealing cavity is located at the upper end of the second-stage sealing cavity and communicated with the upper end of the second-stage sealing cavity, the upper end of the first-stage sealing ball is in line contact with.

Opening mechanism is including pressing the depression bar, pressing frame, pressing spring, sealed pad and sealed uide bushing, presses frame fixed connection on communicating pipe, presses the depression bar sliding connection on pressing frame and sealed uide bushing, and sealed uide bushing threaded connection is provided with sealed the pad on communicating pipe on sealed uide bushing, seals to be provided with between the pad and the depression bar and presses the spring, presses the lower extreme and the spherical contact of one-level sealed ball of depression bar.

The stiffness coefficient of the primary spring is larger than that of the secondary spring.

The stiffness coefficient of the secondary spring is larger than that of the pressing spring.

The utility model relates to a fire extinguisher nozzle's beneficial effect does: the utility model relates to a fire extinguisher nozzle, which can push a secondary sliding rod and a secondary sealing ball to form sealing to a secondary sealing cavity through a secondary spring; the primary sliding rod and the primary sealing ball can be pushed by the primary spring to form sealing for the primary sealing cavity, so that the fire hydrant is completely sealed; the upper end of the nozzle of the fire extinguisher can be sealed through the sealing gasket and the sealing guide sleeve, so that the effective pressure of the fire hydrant when fire extinguishing substances are sprayed out is ensured; the fire extinguishing pipe can be lengthened through the fire extinguishing extension pipe to realize fire extinguishing when personnel cannot approach a fire source.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a cross-sectional view of the fire extinguisher nozzle of the present invention;

FIG. 2 is a schematic view of the overall structure of the sprinkler head of the present invention;

fig. 3 is a schematic structural diagram of the air injection pipeline mechanism of the present invention;

fig. 4 is a sectional view of the air injection pipeline mechanism of the present invention;

fig. 5 is a schematic structural view of the opening mechanism of the present invention;

fig. 6 is a cross-sectional view of the opening mechanism of the present invention;

fig. 7 is a schematic structural view of the multi-stage sealing mechanism of the present invention;

fig. 8 is a sectional view of the multistage sealing mechanism of the present invention.

In the figure: an air injection pipeline mechanism 1; a communicating pipe 1-1; fire extinguishing pipes 1-2; 1-3 of fire extinguishing extension pipe; 1-4 parts of a secondary spring support; 1-5 of a secondary sealing cavity; 1-6 primary seal cavities; an opening mechanism 2; a pressing rod 2-1; 2-2 of a pressing frame; pressing the spring 2-3; 2-4 of a sealing gasket; 2-5 of a sealing guide sleeve; a multistage sealing mechanism 3; 3-1 of a first-stage sealing ball; a primary slide bar 3-2; 3-3 parts of a primary spring; 3-4 of a primary sliding groove; 3-5 parts of a secondary sealing ball; 3-6 of a secondary sliding rod; and secondary springs 3-7.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

the embodiment is described below with reference to fig. 1-8, a fire extinguisher spray nozzle, comprising an air injection pipeline mechanism 1, an opening mechanism 2 and a multi-stage sealing mechanism 3, wherein the air injection pipeline mechanism 1 is fixedly connected to a fire extinguisher, the opening mechanism 2 is slidably connected to the air injection pipeline mechanism 1, the multi-stage sealing mechanism 3 comprises a first-stage sealing ball 3-1, a first-stage sliding rod 3-2, a first-stage spring 3-3, a first-stage sliding groove 3-4, a second-stage sealing ball 3-5, a second-stage sliding rod 3-6 and a second-stage spring 3-7, the second-stage sliding rod 3-6 is slidably connected to the air injection pipeline mechanism 1, and the second-stage spring 3-7 is arranged between the second-stage, the two-stage sealing ball 3-5 is fixedly connected to the two-stage sliding rod 3-6, the lower end of the one-stage sliding groove 3-4 is in spherical contact with the two-stage sealing ball 3-5, the one-stage sliding rod 3-2 is slidably connected to the one-stage sliding groove 3-4, a one-stage spring 3-3 is arranged between the one-stage sliding rod 3-2 and the one-stage sliding groove 3-4, the lower end of the one-stage sealing ball 3-1 is fixedly connected to the one-stage sliding rod 3-2, the upper end of the one-stage sealing ball 3-1 is in line contact with the air injection pipeline mechanism 1, and the upper end of the one-stage sealing ball 3-1.

The second embodiment is as follows:

the present embodiment is described below with reference to fig. 1-8, the jet pipe mechanism 1 includes a communicating pipe 1-1, a fire extinguishing pipe 1-2, a fire extinguishing extension pipe 1-3, a secondary spring support 1-4, a secondary seal chamber 1-5, and a primary seal chamber 1-6, the lower end of the communicating pipe 1-1 is fixedly connected to a fire extinguisher, the fire extinguishing pipe 1-2 is fixedly connected to the side of the communicating pipe 1-1, the secondary spring support 1-4 is fixedly connected to the lower end of the communicating pipe 1-1, a secondary spring 3-7 is disposed between the secondary slide bar 3-6 and the secondary spring support 1-4, the center of the communicating pipe 1-1 is provided with the secondary seal chamber 1-5 and the primary seal chamber 1-6, the primary seal chamber 1-6 is located at the upper end of the secondary seal chamber 1-5 and is communicated, the upper end of the second-stage sealing ball 3-5 is in line contact with the second-stage sealing cavity 1-5, the upper end of the first-stage sealing ball 3-1 is in line contact with the first-stage sealing cavity 1-6, the fire extinguishing pipe 1-2 is located at the upper end of the first-stage sealing cavity 1-6, and the fire extinguishing extension pipe 1-3 is connected to the fire extinguishing pipe 1-2 in a sliding mode.

The third concrete implementation mode:

the embodiment is described below with reference to fig. 1-8, where the opening mechanism 2 includes a pressing rod 2-1, a pressing frame 2-2, a pressing spring 2-3, a sealing gasket 2-4, and a sealing guide sleeve 2-5, the pressing frame 2-2 is fixedly connected to the communicating tube 1-1, the pressing rod 2-1 is slidably connected to the pressing frame 2-2 and the sealing guide sleeve 2-5, the sealing guide sleeve 2-5 is threadedly connected to the communicating tube 1-1, the sealing gasket 2-4 is disposed on the sealing guide sleeve 2-5, the pressing spring 2-3 is disposed between the sealing gasket 2-4 and the pressing rod 2-1, and the lower end of the pressing rod 2-1 is in spherical contact with the primary sealing ball 3-1.

The fourth concrete implementation mode:

the present embodiment is described below with reference to fig. 1 to 8, the stiffness coefficient of the primary spring 3-3 is greater than the stiffness coefficient of the secondary spring 3-7, when the pressing rod 2-1 is pressed, the secondary spring 3-7 is compressed first, so that the secondary sealed cavity 1-5 is communicated with the fire extinguisher, when the pressing rod 2-1 is pressed, the primary spring 3-3 is compressed, the primary sealed cavity 1-6 is communicated with the secondary sealed cavity 1-5, and the fire extinguishing tube 1-2 is communicated with the primary sealed cavity 1-6, so that the fire extinguishing substance is sprayed out.

The fifth concrete implementation mode:

referring to fig. 1-8, the present embodiment will be described, in which the stiffness coefficient of the secondary spring 3-7 is greater than that of the pressing spring 2-3, and the spring force of the secondary spring 3-7 is greater than that of the pressing spring 2-3 in normal state, so that the pressing rod 2-1 does not contact the primary sealing ball 3-1, thereby ensuring the overall sealing performance.

The utility model relates to a fire extinguisher nozzle, its theory of use does: the communicating pipe 1-1 is fixedly connected to a fire extinguisher, under normal conditions, the elasticity of a second-level spring 3-7 pushes a second-level sliding rod 3-6, the second-level sliding rod 3-6 drives a second-level sealing ball 3-5 to contact with a second-level sealing cavity 1-5 to form second-level sealing, the lower end of a first-level sliding groove 3-4 contacts with the second-level sealing ball 3-5, a first-level spring 3-3 pushes a first-level sliding groove 3-4 and a first-level sliding rod 3-2 to enable the first-level sealing ball 3-1 to contact with the first-level sealing cavity 1-6 to form first-level sealing, a pressing spring 2-3 pushes a pressing rod 2-1 to enable the pressing rod 2-1 to be disconnected from the first-level sealing ball 3-1, when in use, the extension length of a fire extinguishing extension pipe 1-3 is adjusted, the pressing rod 2-1 compresses the pressing spring 2-3 until the pressing rod 2-1 is contacted with the primary sealing ball 3-1, and the pressing is continued, because the stiffness coefficient of the primary spring 3-3 is greater than that of the secondary spring 3-7, the secondary spring 3-7 is firstly compressed, so that the communication between the secondary sealing cavity 1-5 and the fire extinguisher is realized, when the pressing rod 2-1 is continuously pressed, the primary spring 3-3 is compressed, the primary sealing cavity 1-6 is communicated with the secondary sealing cavity 1-5, the fire extinguishing pipe 1-2 is communicated with the primary sealing cavity 1-6, and the spraying of fire extinguishing substances is realized.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.

Claims

1. The utility model provides a fire extinguisher nozzle, includes jet-propelled pipeline mechanism (1), opening mechanism (2) and multistage sealing mechanism (3), and jet-propelled pipeline mechanism (1) fixed connection is on the fire extinguisher, and opening mechanism (2) sliding connection is on jet-propelled pipeline mechanism (1), and multistage sealing mechanism (3) sliding connection is on jet-propelled pipeline mechanism (1), its characterized in that: the multistage sealing mechanism (3) comprises a first-stage sealing ball (3-1), a first-stage sliding rod (3-2), a first-stage spring (3-3), a first-stage sliding groove (3-4), a second-stage sealing ball (3-5), a second-stage sliding rod (3-6) and a second-stage spring (3-7), wherein the second-stage sliding rod (3-6) is connected to the air injection pipeline mechanism (1) in a sliding manner, the second-stage spring (3-7) is arranged between the second-stage sliding rod (3-6) and the air injection pipeline mechanism (1), the second-stage sealing ball (3-5) is fixedly connected to the second-stage sliding rod (3-6), the lower end of the first-stage sliding groove (3-4) is in spherical contact with the second-stage sealing ball (3-5), and the first-stage sliding rod (3-2) is connected to, a first-stage spring (3-3) is arranged between the first-stage sliding rod (3-2) and the first-stage sliding groove (3-4), the lower end of the first-stage sealing ball (3-1) is fixedly connected to the first-stage sliding rod (3-2), the upper end of the first-stage sealing ball (3-1) is in line contact with the air injection pipeline mechanism (1), and the upper end of the first-stage sealing ball (3-1) is in spherical contact with the opening mechanism (2).

2. A fire extinguisher spray head as claimed in claim 1, wherein: the air injection pipeline mechanism (1) comprises a communicating pipe (1-1), a fire extinguishing pipe (1-2), a fire extinguishing extension pipe (1-3), a secondary spring support (1-4), a secondary sealing cavity (1-5) and a primary sealing cavity (1-6), the lower end of the communicating pipe (1-1) is fixedly connected to a fire extinguisher, the fire extinguishing pipe (1-2) is fixedly connected to the side surface of the communicating pipe (1-1), the secondary spring support (1-4) is fixedly connected to the lower end of the communicating pipe (1-1), a secondary spring (3-7) is arranged between the secondary sliding rod (3-6) and the secondary spring support (1-4), the center of the communicating pipe (1-1) is provided with the secondary sealing cavity (1-5) and the primary sealing cavity (1-6), the primary sealing cavity (1-6) is positioned at the upper end of the secondary sealing cavity (1-5) and communicated with the secondary sealing cavity (1-5), the upper end of the secondary sealing ball (3-5) is in line contact with the secondary sealing cavity (1-5), the upper end of the primary sealing ball (3-1) is in line contact with the primary sealing cavity (1-6), the fire extinguishing pipe (1-2) is positioned at the upper end of the primary sealing cavity (1-6), and the fire extinguishing extension pipe (1-3) is connected to the fire extinguishing pipe (1-2) in a sliding manner.

3. A fire extinguisher spray head as claimed in claim 2, wherein: the opening mechanism (2) comprises a pressing rod (2-1), a pressing frame (2-2), a pressing spring (2-3), a sealing pad (2-4) and a sealing guide sleeve (2-5), the pressing frame (2-2) is fixedly connected to the communicating pipe (1-1), the pressing rod (2-1) is connected to the pressing frame (2-2) and the sealing guide sleeve (2-5) in a sliding mode, the sealing guide sleeve (2-5) is connected to the communicating pipe (1-1) in a threaded mode, a sealing gasket (2-4) is arranged on the sealing guide sleeve (2-5), a pressing spring (2-3) is arranged between the sealing gasket (2-4) and the pressing rod (2-1), and the lower end of the pressing rod (2-1) is in spherical contact with the primary sealing ball (3-1).

4. A fire extinguisher spray head as claimed in claim 3, wherein: the stiffness coefficient of the primary spring (3-3) is larger than that of the secondary spring (3-7).

5. A fire extinguisher spray head as claimed in claim 4, wherein: the stiffness coefficient of the secondary spring (3-7) is larger than that of the pressing spring (2-3).