CN115591164A - Portable fire extinguisher - Google Patents

Portable fire extinguisher Download PDF

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Publication number
CN115591164A
CN115591164A CN202211227261.8A CN202211227261A CN115591164A CN 115591164 A CN115591164 A CN 115591164A CN 202211227261 A CN202211227261 A CN 202211227261A CN 115591164 A CN115591164 A CN 115591164A
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CN
China
Prior art keywords
valve
movable sleeve
fixed
valve rod
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202211227261.8A
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Chinese (zh)
Other versions
CN115591164B (en
Inventor
王锦怡
王沛钢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Tianbo Fire Protection Equipment Co ltd
Original Assignee
Ningbo Tianbo Fire Protection Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Tianbo Fire Protection Equipment Co ltd filed Critical Ningbo Tianbo Fire Protection Equipment Co ltd
Priority to CN202211227261.8A priority Critical patent/CN115591164B/en
Publication of CN115591164A publication Critical patent/CN115591164A/en
Application granted granted Critical
Publication of CN115591164B publication Critical patent/CN115591164B/en
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C13/00Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A62C13/64Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container the extinguishing material being released by means of a valve
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C13/00Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76Details or accessories

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a portable fire extinguisher, which comprises a cylinder, wherein a valve is arranged at the upper end of the cylinder, the lower end of the valve is connected with a suction pipe extending into the cylinder, a nozzle is arranged at one side of the valve, the valve comprises a valve body and a valve rod which is arranged at the upper end of the valve body in an up-and-down extending manner, a plastic housing covering the valve is arranged at the upper end of the cylinder, a plastic pressing handle is rotatably connected at the upper end of the plastic housing, the left lower end of the plastic pressing handle is rotatably connected with the plastic housing, an extruding device for pressing the valve rod downwards is arranged in the middle of the lower end of the plastic pressing handle, the extruding device is positioned above the valve rod and comprises a fixed sleeve, a movable sleeve and an extruding spring, the fixed sleeve is fixed in the plastic pressing handle, the fixed sleeve is provided with a groove with a downward opening, the movable sleeve extends up and down, the upper end of the movable sleeve extends into the fixed sleeve, and the extruding spring is arranged between the fixed sleeve and the movable sleeve in an up and down extending manner. The iron pressure handle in the prior art of the invention is changed into a plastic housing, and the fire extinguishing agent can be stably sprayed.

Description

Portable fire extinguisher
Technical Field
The invention relates to a portable fire extinguisher.
Background
The fire extinguisher is a portable fire extinguishing tool used for extinguishing fire. The fire extinguisher is one of common fire fighting equipment, is stored in public places or places where fires possibly happen, and different types of fire extinguishers are filled with different components and are specially designed for different fires. The portable fire extinguisher in the prior art generally comprises a cylinder, a valve arranged at the upper end of the cylinder and a nozzle, wherein an iron pressing handle is arranged on the valve, the pressing handle is pressed down during use, the pressing handle can press down a valve rod of the valve to drive a sealing block in the valve to move downwards, so that the valve is opened, a fire extinguishing agent can be sprayed out from the nozzle, and the following problems often exist in the using process: people need continuously push down the pressure handle with the hand when using the fire extinguisher, and the time is long can be tired, leads to the hand to have some not hard up, and not hard up "openning" that the back valve was opened will diminish to a certain extent, leads to the spun dose of putting out a fire of nozzle department to diminish, can't spout extinguishing agent to a certain extent promptly steadily.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to: a portable fire extinguisher is provided.
The technical solution of the invention is as follows: the portable fire extinguisher comprises a cylinder body, a valve is installed at the upper end of the cylinder body, the lower end of the valve is connected with a straw extending into the cylinder body, a nozzle is installed on one side of the valve, the valve comprises a valve body and a valve rod installed at the upper end of the valve body in an up-and-down extending manner, a plastic housing covering the valve body is installed at the upper end of the cylinder body, the upper end of the plastic housing is rotatably connected with a plastic pressing handle, the left lower end of the plastic pressing handle is rotatably connected with the plastic housing, an extruding device used for pressing the valve rod down is installed at the middle position of the lower end of the plastic pressing handle, the extruding device is located above the valve rod and comprises a fixed sleeve, a movable sleeve and an extruding spring, the fixed sleeve is fixed in the plastic pressing handle, the fixed sleeve is provided with a groove with a downward opening, the movable sleeve extends up and down, the upper end of the movable sleeve extends into the fixed sleeve, and the extruding spring is installed between the fixed sleeve and the movable sleeve in an up-and down extending manner.
Furthermore, the movable sleeve is provided with a movable groove with an upward opening, the upper end of the groove is provided with a first convex column, the lower end of the movable groove is provided with a second convex column, the upper end of the extrusion spring is sleeved outside the first convex column and fixed with the first convex column, and the lower end of the extrusion spring is sleeved outside the second convex column and fixed with the second convex column.
Furthermore, the bottom of the movable sleeve is detachably provided with a heightening block which is positioned above the valve rod.
Furthermore, a threaded hole is formed in the middle of the bottom of the movable sleeve, a threaded portion protruding upwards is formed in the top of the heightening block, and the threaded portion is screwed into the threaded hole.
Furthermore, the heightening block can be detached, and the heightening blocks with different heights can be replaced after being detached, so that the maximum stroke of the valve rod can be adjusted.
Further, after pressing plastics pressure right upper end, extrusion device downstream, fixed cover, movable sleeve, increase the piece and move down together, increase the piece and touch the valve rod upper end after, increase piece and movable sleeve and stop downstream, fixed cover continues the downstream, and extrusion spring is compressed, after extrusion spring is greater than the elasticity of valve built-in spring, increases the piece and down pushes the valve rod for the valve is opened.
The portable fire extinguisher provided by the invention has the beneficial effects that: after pressing down the handle, the valve rod of valve is pushed down through extrusion device, comes control valve to open through extrusion spring's elasticity, when the user pressed the handle the hand that presses little not hard up, as long as extrusion spring's elasticity still is greater than the elasticity of valve built-in spring, valve rod can not rebound so, and the size that the valve was opened can not change, can not change the spun dose of putting out a fire of nozzle department.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation of the pressure gauge of the present invention;
FIG. 3 is a schematic view of the extrusion apparatus of the present invention;
FIG. 4 is a schematic view of the installation of the heightening block of the present invention.
Shown in the figure: 1-barrel, 2-valve, 21-valve body, 22-valve rod, 23-sealing block, 24-spring holder, 25-built-in spring, 3-straw, 4-nozzle, 5-plastic housing, 6-plastic pressure handle, 7-extrusion device, 71-fixed sleeve, 711-groove, 7111-first convex column, 72-movable sleeve, 721-movable groove, 7211-second convex column, 722-threaded hole, 73-extrusion spring, 74-heightening block, 741-threaded part, 8-pressure gauge.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:
as shown in fig. 1-4, the portable fire extinguisher comprises a cylinder 1, a valve 2 is installed at the upper end of the cylinder 1, the lower end of the valve 2 is connected with a suction pipe 3 extending into the cylinder 1, a nozzle 4 is installed at one side of the valve 2, the valve 2 comprises a valve body 21 and a valve rod 22 installed at the upper end of the valve body 21 in an up-and-down extending manner, a plastic housing 5 covering the valve 2 is installed at the upper end of the cylinder 1, a plastic press handle 6 is rotatably connected to the upper end of the plastic housing 5, the left lower end of the plastic press handle 6 is rotatably connected with the plastic housing 5, an extruding device 7 for pressing down the valve rod 22 is installed at the middle position of the lower end of the plastic press handle 6, the extruding device 7 is located above the valve rod 22 and comprises a fixed sleeve 71, a movable sleeve 72 and an extruding spring 73, the fixed sleeve 71 is fixed in the plastic press handle 6, the fixed sleeve 71 is provided with a groove 711 with a downward opening, the movable sleeve 72 extends up and down, the upper end of the movable sleeve 72 extends into the fixed sleeve 71, and the extruding spring 73 extends up and down between the fixed sleeve 71 and the movable sleeve 72.
The lower end of the valve rod 22 is fixed with a sealing block 23, the lower end of the valve body 21 is fixed with a spring seat 24, a built-in spring 25 is arranged between the spring seat 24 and the sealing block 23, and the sealing block 23 is in contact with the conical inner wall of the valve body 21 to play a sealing role.
As shown in fig. 3, the movable sleeve 72 has a movable slot 721 with an upward opening, the upper end of the groove 711 has a first protrusion 7111, the lower end of the movable slot 721 has a second protrusion 7211, the upper end of the pressing spring 73 is sleeved outside the first protrusion 7111 and fixed with the first protrusion 7111, and the lower end of the pressing spring 73 is sleeved outside the second protrusion 7211 and fixed with the second protrusion 7211.
As shown in fig. 3 and 4, a heightening block 74 is detachably mounted to the bottom of the movable sleeve 72, and the heightening block 74 is located above the valve stem 22. The middle position of the bottom of the movable sleeve 72 is provided with a threaded hole 722, the top of the heightening block 74 is provided with a threaded part 741 which protrudes upwards, and the threaded part 741 is screwed into the threaded hole 722. The height increasing block 74 is removable and the height increasing block 74 can be changed to different heights for adjusting the maximum stroke of the valve stem 22, in particular, the higher the height of the height increasing block 74, the greater the distance the valve stem 22 is depressed, the greater the distance the sealing block 23 is moved, the greater the "opening" of the valve 2 is opened and the greater the amount of fire suppressant sprayed by the nozzle 4. Therefore, the maximum amount of fire extinguishing agent sprayed from the fire extinguisher can be adjusted by replacing the height-increasing blocks 74 having different heights.
As shown in fig. 2, the valve body 21 is also connected with a pressure gauge 8.
After pressing the right upper end of the plastic press handle 6, the extruding device 7 moves downwards, the fixed sleeve 71, the movable sleeve 72 and the heightening block 74 move downwards together until the heightening block 74 touches the upper end of the valve rod 22, the heightening block 74 and the movable sleeve 72 stop moving downwards, the fixed sleeve 71 continues moving downwards, the extruding spring 73 is compressed, and after the elastic force of the extruded extruding spring 73 is greater than that of the built-in spring 25 of the valve 2, the heightening block 74 presses the valve rod 22 downwards, so that the valve 2 is opened.
When the valve is used, after the pressing handle is pressed down, the valve rod 22 of the valve 2 is pressed down through the extruding device 7, the valve 2 is controlled to be opened through the elastic force of the extruding spring 73, when the user presses the pressing handle to loosen a little, as long as the elastic force of the extruding spring 73 is still larger than the elastic force of the built-in spring 25 of the valve 2, the valve rod 22 cannot move upwards, the size of the opened valve 2 cannot be changed, and the fire extinguishing dose sprayed from the nozzle 4 cannot be changed.
It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and that the present invention is not limited by the above description and drawings.

Claims (6)

1. Portable fire extinguisher, including the barrel, the valve is installed to the upper end of barrel, and the valve lower extreme is connected with the straw that stretches into in the barrel, and the nozzle is installed to valve one side, and the valve includes the valve body and installs the valve rod, its characterized in that in the valve body upper end with extending from top to bottom: the upper end of the cylinder is provided with a plastic housing covering the valve, the upper end of the plastic housing is rotatably connected with a plastic pressing handle, the left lower end of the plastic pressing handle is rotatably connected with the plastic housing, the middle position of the lower end of the plastic pressing handle is provided with an extruding device used for pressing the valve rod downwards, the extruding device is positioned above the valve rod and comprises a fixed sleeve, a movable sleeve and an extruding spring, the fixed sleeve is fixed in the plastic pressing handle, the fixed sleeve is provided with a groove with a downward opening, the movable sleeve extends up and down, the upper end of the movable sleeve extends into the fixed sleeve, and the extruding spring is installed between the fixed sleeve and the movable sleeve in an up and down extending manner.
2. The portable fire extinguisher according to claim 1, wherein: the movable sleeve is provided with a movable groove with an upward opening, the upper end of the groove is provided with a first convex column, the lower end of the movable groove is provided with a second convex column, the upper end of the extrusion spring is sleeved outside the first convex column and fixed with the first convex column, and the lower end of the extrusion spring is sleeved outside the second convex column and fixed with the second convex column.
3. The portable fire extinguisher according to claim 2, wherein: the bottom of the movable sleeve is detachably provided with a heightening block which is positioned above the valve rod.
4. The portable fire extinguisher according to claim 3, wherein: the middle position of the bottom of the movable sleeve is provided with a threaded hole, the top of the heightening block is provided with a threaded part which protrudes upwards, and the threaded part is screwed into the threaded hole.
5. The portable fire extinguisher according to claim 4, wherein: the heightening block is detachable, and the heightening blocks with different heights can be replaced after being detached for adjusting the maximum stroke of the valve rod.
6. The portable fire extinguisher according to claim 4, wherein: after pressing the plastics pressure right upper end, extrusion device downstream, fixed cover, movable sleeve, increase the piece and move down together, after increasing the piece and touch the valve rod upper end, increase piece and movable sleeve and stop downstream, fixed cover continues downstream, and the extrusion spring is compressed, after the elasticity after the extrusion spring is extruded is greater than the elasticity of valve built-in spring, increases the piece and down presses the valve rod for the valve is opened.
CN202211227261.8A 2022-10-09 2022-10-09 Portable fire extinguisher Active CN115591164B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211227261.8A CN115591164B (en) 2022-10-09 2022-10-09 Portable fire extinguisher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211227261.8A CN115591164B (en) 2022-10-09 2022-10-09 Portable fire extinguisher

Publications (2)

Publication Number Publication Date
CN115591164A true CN115591164A (en) 2023-01-13
CN115591164B CN115591164B (en) 2023-11-28

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Application Number Title Priority Date Filing Date
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719232A (en) * 1970-03-14 1973-03-06 G Gubela Fire extinguisher
US6378618B1 (en) * 2001-09-18 2002-04-30 Chen-Hsin Yang Control switch for a fire extinguisher
CN204025715U (en) * 2014-08-20 2014-12-17 宁波正欣消防设备有限公司 The extinguisher valve that extinguishing agent can not leak from sealing block and closed chamber wall joint
CN204017223U (en) * 2014-08-20 2014-12-17 宁波正欣消防设备有限公司 A kind of extinguishing chemical can not from the extinguisher valve of valve rod edge ejection below pressure handle
CN205903547U (en) * 2016-08-23 2017-01-25 宁波威仕消防器材有限公司 Fire extinguisher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719232A (en) * 1970-03-14 1973-03-06 G Gubela Fire extinguisher
US6378618B1 (en) * 2001-09-18 2002-04-30 Chen-Hsin Yang Control switch for a fire extinguisher
CN204025715U (en) * 2014-08-20 2014-12-17 宁波正欣消防设备有限公司 The extinguisher valve that extinguishing agent can not leak from sealing block and closed chamber wall joint
CN204017223U (en) * 2014-08-20 2014-12-17 宁波正欣消防设备有限公司 A kind of extinguishing chemical can not from the extinguisher valve of valve rod edge ejection below pressure handle
CN205903547U (en) * 2016-08-23 2017-01-25 宁波威仕消防器材有限公司 Fire extinguisher

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