CN112957640A - Fire extinguisher capable of quickly supplementing fire extinguishing agent - Google Patents
Fire extinguisher capable of quickly supplementing fire extinguishing agent Download PDFInfo
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- CN112957640A CN112957640A CN202110167164.3A CN202110167164A CN112957640A CN 112957640 A CN112957640 A CN 112957640A CN 202110167164 A CN202110167164 A CN 202110167164A CN 112957640 A CN112957640 A CN 112957640A
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- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
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Abstract
The invention relates to the field of fire fighting equipment, in particular to a fire extinguisher capable of quickly supplementing fire extinguishing agent, which comprises a tank body and a fire extinguisher head assembly, wherein an internal thread fixing ring is arranged in the tank body, and first discharge chutes are uniformly distributed on the internal thread fixing ring; still including dock prefill valve, including: the external thread fixing cylinder is coaxially screwed in the internal thread fixing ring, and a second discharge chute is arranged on the circumferential surface of the external thread fixing cylinder; the sealing elements are respectively arranged at the upper end and the lower end of the inner periphery of the external thread fixing cylinder; the telescopic column is coaxially and slidably arranged in the radial sealing element, a feed chute is arranged at the bottom end of the telescopic column, third discharge chutes are uniformly distributed at the top end of the feed chute along the radial direction, a first limiting ring is further arranged at the bottom end of the periphery of the telescopic column, and a second axial sealing element is further arranged at the top end of the periphery of the telescopic column; the spring is coaxially sleeved on the telescopic column, two ends of the spring are respectively abutted to opposite ends of the first limiting ring and the radial sealing element, and the fire extinguisher can quickly supplement fire extinguishing agents through the butt joint type liquid charging valve at the bottom end of the fire extinguisher.
Description
Technical Field
The invention relates to the field of fire fighting equipment, in particular to a fire extinguisher capable of quickly supplementing fire extinguishing agents.
Background
The fire extinguisher is a portable fire extinguishing tool. Chemical substances are placed in the fire extinguisher for saving and extinguishing fire. Fire extinguishers are one of the common fire protection facilities, stored in public places or places where fires may occur. However, one fire extinguisher usually has only one fire extinguishing material, so that different kinds of fire sources cannot be extinguished, and in addition, dense smoke is filled during fire extinguishing, so that people are easily suffocated. The fire extinguisher is one of common fire-proof facilities, is stored in public places or places where fire disasters may happen, and different fire extinguishers of different types are filled with different components and are specially designed for different fires. Care must be taken in use to avoid adverse effects and risks. The portable fire extinguisher is the most widely used portable fire extinguisher with the largest number. The portable fire extinguisher generally comprises a bottle body, a fire extinguishing agent, a fire extinguisher nozzle, a fire extinguisher spray pipe, a pressure gauge and a handle, wherein the fire extinguishing agent, the fire extinguisher nozzle, the fire extinguisher spray pipe, the pressure gauge and the handle are arranged in the bottle body. However, the volume of the fire extinguishing agent in the fire extinguisher is small, and the fire extinguisher can only be replaced after being used up, so that the fire extinguishing is interrupted, and the fire extinguishing efficiency is influenced.
Chinese patent CN201922465266.4 discloses a fire extinguisher for rapidly supplementing fire extinguishing agent, which comprises: the device comprises a frame body, a plurality of storage tanks, a communicating pipe, a spray pipe and a plurality of valve bodies; the plurality of storage tanks are movably connected with the frame body; the communicating pipe is arranged on the frame body; the valve bodies are connected with the storage tanks, and each valve body can independently control the opening and closing of the corresponding storage tank and the communicating pipe; the spray pipe is connected and communicated with the communicating pipe; the communicating pipe is communicated with each storage tank, so that the fire extinguishing agent stored in each storage tank can be collected to the spray pipe; this fire extinguisher need demolish the head assembly and supply again, complex operation, inconvenient dress.
Disclosure of Invention
First, technical problem to be solved
The invention provides a fire extinguisher capable of quickly supplementing a fire extinguishing agent, aiming at the defects in the prior art, and the technical scheme solves the problem that the fire extinguisher can quickly supplement the fire extinguishing agent.
Second, technical scheme
In order to solve the technical problem, the invention provides a fire extinguisher capable of quickly supplementing fire extinguishing agent, which comprises a tank body and a fire extinguisher head assembly, wherein an internal thread fixing ring is arranged at the bottom end in the tank body, and first discharge chutes radially arranged along the internal thread fixing ring are uniformly distributed on the circumferential surface of the internal thread fixing ring; still including dock prefill valve, dock prefill valve including: the external thread fixing cylinder is coaxially screwed in the internal thread fixing ring, and a second discharge chute which is communicated with the first discharge chute along the radial direction is arranged on the circumferential surface of the external thread fixing cylinder; the radial seal and the first axial seal are respectively and coaxially arranged at the top end and the bottom end of the inner periphery of the outer thread fixing cylinder, the sealing surface of the radial seal faces to the axis of the radial seal, and the sealing surface of the first axial seal faces to the radial seal coaxially; the telescopic column is coaxially and slidably arranged in the radial sealing element, the top end of the telescopic column coaxially penetrates through the top end of the external thread fixing cylinder, the bottom end of the telescopic column is coaxially provided with a feed chute, third discharge chutes are uniformly distributed at the top end of the feed chute along the radial direction, the third discharge chutes are positioned at the bottom of the radial sealing element, the peripheral bottom end of the telescopic column is also provided with a first limiting ring which is abutted against the sealing surface of the first axial sealing element, the peripheral top end of the telescopic column is also coaxially provided with a second axial sealing element which is positioned at the top end of the radial sealing element, and the sealing surface of the second axial sealing element is abutted against the top end; the spring is coaxially sleeved on the telescopic column, and two ends of the spring are respectively abutted to the top end of the first limiting ring and the bottom end of the radial sealing element.
Preferably, the bottom end of the inner periphery of the internal thread fixing ring and the bottom end of the outer periphery of the external thread fixing cylinder are respectively provided with a first step edge and a second step edge which are coaxial; still including sealing filler and screw thread butt circle, the coaxial packing of sealing filler is followed with the second ladder along first ladder along with the second ladder along the well, the coaxial wrong connection of screw thread butt circle is in first ladder along the annular of combination with the second ladder, and its top butt is in the sealing filler bottom.
Preferably, a positioning ring is coaxially arranged in the feeding groove, and the inner diameter of the positioning ring is gradually increased towards two ends of the positioning ring by taking the middle plane as a starting point.
Preferably, the third discharge chute is inclined upward in the radial direction of the feed chute.
Preferably, the radial seal comprises; the first fixing ring is coaxially and fixedly arranged at the top end of the inner periphery of the external thread fixing cylinder, and a first ring clamping groove is coaxially arranged on the inner periphery of the first fixing ring; the first sealing ring is coaxially clamped in the first ring clamping groove, and the inner periphery of the first sealing ring is in interference fit with the outer periphery of the telescopic column.
Preferably, the first axial seal comprises: the second fixing ring is coaxially and fixedly arranged at the bottom end of the inner periphery of the outer thread fixing cylinder, and the top end of the second fixing ring is coaxially provided with a second ring clamping groove; the second sealing ring is coaxially clamped in the second ring clamping groove, and the first limiting ring is coaxially abutted in the second sealing ring; the second axial seal is opposite the first axial seal configuration and the sealing face.
Preferably, the top end of the telescopic column is also coaxially provided with a rubber plate fixed by a gasket bolt.
Preferably, the top end of the inner periphery of the tank body is further provided with a second limiting ring which is coaxially abutted to the top end of the external thread fixing cylinder.
Preferably, the top end of the inner periphery of the external thread fixing cylinder is also coaxially provided with a third limiting ring, the inner periphery of the third limiting ring is provided with a limiting groove along the axial direction of the third limiting ring, and the outer periphery of the second axial sealing element is uniformly provided with limiting strips in sliding fit with the third limiting ring along the axial direction of the third limiting ring.
Preferably, the sealing cover is coaxially screwed at the bottom end of the inner periphery of the external thread fixing cylinder.
Third, beneficial effect
Compared with the prior art, the fire extinguisher can quickly supplement fire extinguishing agent through the butt joint type liquid charging valve at the bottom end of the fire extinguisher, has excellent sealing performance, and particularly, the external thread fixing cylinder is coaxially screwed in the internal thread fixing ring, so that the butt joint type liquid charging valve and the tank body can be conveniently installed and disassembled;
when the external thread fixing cylinder is coaxially screwed into the internal thread fixing ring, because the pressure inside the tank body is higher, the liquid fire extinguishing agent freely leaks outwards through a gap between the external thread fixing cylinder and the internal thread fixing ring, the inner peripheral bottom end of the internal thread fixing ring and the outer peripheral bottom end of the external thread fixing cylinder are respectively provided with a first step edge and a second step edge which are coaxial, the sealing filler is filled in the first step edge and the second step edge, and the sealing filler is coaxially screwed into the first step edge and the second step edge through the thread abutting ring, so that the thread abutting ring compresses the bottom end of the sealing filler, the liquid fire extinguishing agent can be prevented from leaking outwards from the gap between the external thread fixing cylinder and the internal thread fixing ring, and the sealing performance of the butt joint type liquid charging valve is improved; in a non-charging state, two ends of the spring are respectively abutted against the top end of the first limiting ring and the bottom end of the radial sealing element, so that the third discharge chute is positioned at the bottom of the radial sealing element, a sealing surface of the second axial sealing element is abutted against the top end of the radial sealing element in the vertical direction, the first limiting ring is coaxially abutted against the sealing surface of the first axial sealing element, and the periphery of the telescopic column is in sliding fit with the inner sealing surface of the radial sealing element, so that the high-pressure fire extinguishing agent in the tank body is prevented from leaking from a;
during filling, the tank body is coaxially abutted against the filling head, so that the filling head is coaxially inserted into the feed chute, the first limiting ring overcomes the elasticity of the spring and rises along the vertical direction, namely, the spring coaxially rises in the external thread fixing cylinder, and then the third discharge chute is communicated with the second discharge chute along the radial direction, and the filling head is communicated with the interior of the tank body due to the communication of the second discharge chute and the first discharge chute, namely, the high-pressure fire extinguishing agent in the filling head quickly passes through the feed chute, the third discharge chute, the second discharge chute and the first discharge chute in sequence to enter the tank body, so that the quick filling of the fire extinguisher is realized, and the tank body and the head assembly do not need to be separated; after filling the dress, make to fill the flexible post of dress head stop butt, make flexible post reset under spring elastic action, thereby make the third blown down tank remove to second blown down tank bottom, thereby prevent that the internal portion liquid fire extinguishing agent of jar from leaking, compare traditional fire extinguisher and need pull down head assembly from the jar body when filling the dress, this fire extinguisher fills dress efficiency height, and easy operation.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a cross-sectional view at section A-A of FIG. 1;
FIG. 3 is a partial enlarged view of FIG. 2 at B;
FIG. 4 is a front view of the radial seal of the present invention;
FIG. 5 is a cross-sectional view at section C-C of FIG. 4;
FIG. 6 is a front view of the first axial seal of the present invention;
FIG. 7 is a cross-sectional view at section D-D of FIG. 6;
FIG. 8 is a perspective view of the telescoping column of the present invention;
FIG. 9 is an exploded perspective view of the telescoping post of the present invention;
fig. 10 is an axial cross-sectional view of the telescoping post and cage of the present invention.
In the figure:
1 is a tank body; 1a is an internal thread fixing ring; 1a1 is a first discharge chute; 1a2 is the first step edge; 1a3 is a second spacing collar;
2 is a head assembly;
3 is an external thread fixing cylinder; 3a is a second discharge chute; 3b is a second step edge; 3c is a third spacing ring; 3c1 is a limit groove; 3d is a sealing cover;
4 is a radial seal; 4a is a first fixed ring; 4a1 is a first ring slot; 4b is a first sealing ring;
5 is a first axial seal; 5a is a second fixed ring; 5a1 is a second ring card slot; 5b is a second sealing ring;
6 is a telescopic column; 6a is a feed chute; 6a1 is a positioning ring; 6b is a third discharge chute; 6c is a first spacing ring; 6d is a second axial seal; 6d1 is a limit strip; 6e is a rubber plate;
7 is a spring;
8 is sealing filler;
and 9 is a thread abutting ring.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
referring to fig. 2, the fire extinguisher for rapidly replenishing fire extinguishing agent of the present embodiment includes a tank body 1 and a head assembly 2, wherein an internal thread fixing ring 1a is disposed at the bottom end of the tank body 1, and first discharge chutes 1a1 radially disposed along the internal thread fixing ring 1a are uniformly distributed on the circumferential surface thereof; still including dock prefill valve, dock prefill valve including:
the external thread fixing cylinder 3 is coaxially screwed in the internal thread fixing ring 1a, and a second discharge chute 3a communicated with the first discharge chute 1a1 along the radial direction is arranged on the circumferential surface of the external thread fixing cylinder 3;
a radial seal 4 and a first axial seal 5, wherein the radial seal 4 and the first axial seal 5 are respectively and coaxially arranged at the top end and the bottom end of the inner periphery of the outer thread fixing barrel 3, the sealing surface of the radial seal 4 faces to the axis of the radial seal, and the sealing surface of the first axial seal 5 faces to the radial seal 4 coaxially;
the telescopic column 6 is coaxially and slidably arranged in the radial sealing element 4, the top end of the telescopic column 6 coaxially penetrates through the top end of the external thread fixing cylinder 3, the bottom end of the telescopic column 6 is coaxially provided with a feeding groove 6a, third discharging grooves 6b are uniformly distributed at the top end of the feeding groove 6a along the radial direction, the third discharging grooves 6b are positioned at the bottom of the radial sealing element 4, the bottom end of the periphery of the telescopic column 6 is further provided with a first limiting ring 6c abutted to the sealing surface of the first axial sealing element 5, the top end of the periphery of the telescopic column 6 is further coaxially provided with a second axial sealing element 6d positioned at the top end of the radial sealing element 4, and the sealing surface of the second axial sealing element 6d is abutted to the top end;
the spring 7 is coaxially sleeved on the telescopic column 6, and two ends of the spring 7 are respectively abutted to the top end of the first limiting ring 6c and the bottom end of the radial sealing element 4.
The external thread fixing cylinder 3 is coaxially screwed in the internal thread fixing ring 1a, so that the butt joint type liquid charging valve and the tank body 1 can be conveniently installed and detached;
in a non-charging state, two ends of the spring 7 are respectively abutted against the top end of the first limiting ring 6c and the bottom end of the radial sealing element 4, so that the third discharge chute 6b is positioned at the bottom of the radial sealing element 4, the sealing surface of the second axial sealing element 6d is abutted against the top end of the radial sealing element 4 along the vertical direction, the first limiting ring 6c is coaxially abutted against the sealing surface of the first axial sealing element 5, the periphery of the telescopic column 6 is in sliding fit with the inner sealing surface of the radial sealing element 4, and therefore the high-pressure fire extinguishing agent in the tank body 1 cannot leak from a gap;
during filling, the tank body 1 is coaxially abutted against the filling head, so that the filling head is coaxially inserted into the feed chute 6a, the first limiting ring 6c overcomes the elastic force of the spring 7 and rises vertically, namely the spring 7 coaxially rises in the external thread fixing cylinder 3, and then the third discharge chute 6b instead is communicated with the second discharge chute 3a along the radial direction, and the second discharge chute 3a is communicated with the first discharge chute 1a1, namely the filling head is communicated with the interior of the tank body 1, namely a high-pressure fire extinguishing agent in the filling head quickly passes through the feed chute 6a, the third discharge chute 6b, the second discharge chute 3a and the first discharge chute 1a1 to enter the tank body 1, so that the quick filling of a fire extinguisher is realized, and the tank body 1 and the head assembly 2 do not need to be separated;
after filling the dress, make the head of filling stop the flexible post 6 of butt, make flexible post 6 reset under spring 7 elastic reaction to make third blown down tank 6b remove to second blown down tank 3a bottom, thereby prevent that the inside liquid fire extinguishing agent of jar body 1 from leaking.
As shown in fig. 3, the inner circumference bottom end of the internal thread fixing ring 1a and the outer circumference bottom end of the external thread fixing cylinder 3 are respectively provided with a first step edge 1a2 and a second step edge 3b which are coaxial; the sealing packing structure further comprises a sealing packing 8 and a thread abutting ring 9, wherein the sealing packing 8 is coaxially filled in the first step edge 1a2 and the second step edge 3b, the thread abutting ring 9 is coaxially screwed in a ring groove formed by combining the first step edge 1a2 and the second step edge 3b, and the top end of the thread abutting ring abuts against the bottom end of the sealing packing 8.
When the external thread fixing cylinder 3 is coaxially screwed into the internal thread fixing ring 1a, the liquid fire extinguishing agent freely leaks outwards through the gap between the external thread fixing cylinder 3 and the internal thread fixing ring 1a due to the large pressure intensity in the tank body 1, the inner circumference bottom end of the internal thread fixing ring 1a and the outer circumference bottom end of the external thread fixing cylinder 3 are respectively provided with a first ladder edge 1a2 and a second ladder edge 3b which are coaxial, and the sealing packing 8 is filled in the first step edge 1a2 and the second step edge 3b, after being coaxially screwed in the first step edge 1a2 and the second step edge 3b by the thread abutting ring 9, the thread abutting ring 9 compresses the bottom end of the sealing packing 8, thereby can avoid liquid fire extinguishing agent from the outside leakage in clearance department between external screw thread solid fixed cylinder 3 and the internal thread retainer plate 1a to improve dock prefill valve's leakproofness.
As shown in fig. 3 and 10, a positioning ring 6a1 is coaxially disposed in the feeding chute 6a, and the inner diameter of the positioning ring 6a1 gradually increases from the middle plane to both ends thereof.
The feed chute 6a is also coaxially provided with a positioning ring 6a1, the inner diameter of the positioning ring 6a1 gradually increases towards two ends thereof with the midplane as a starting point, so that when the filling head abuts in the positioning ring 6a1, the filling head can be coaxially positioned at the bottom end of the inner periphery of the positioning ring 6a1, and the liquid fire extinguishing agent can be stably filled in the tank body 1 through the positioning ring 6a1 with the gradually increasing inner diameter.
As shown in fig. 3 and 10, the third discharge chute 6b is inclined upward in the radial direction of the feed chute 6 a.
Third blown down tank 6b is up along the radial slope of feed chute 6a for when filling the coaxial grafting of filling the head and filling in the middle of feed chute 6a, the difficult top in the axial impact feed chute 6a of following of liquid fire extinguishing agent, thereby can make and fill the dress process more stable.
As shown in fig. 5, the radial seal 4 comprises;
the first fixing ring 4a is coaxially and fixedly arranged at the top end of the inner periphery of the external thread fixing cylinder 3, and a first ring clamping groove 4a1 is coaxially arranged on the inner periphery of the first fixing ring 4 a;
the first sealing ring 4b is coaxially clamped in the first ring clamping groove 4a1, and the inner periphery of the first sealing ring 4b is in interference fit with the outer periphery of the telescopic column 6.
As shown in fig. 7, the first axial seal 5 includes:
the second fixing ring 5a is coaxially and fixedly arranged at the bottom end of the inner periphery of the external thread fixing cylinder 3, and the top end of the second fixing ring 5a is coaxially provided with a second ring clamping groove 5a 1;
the second sealing ring 5b is coaxially clamped in the second ring clamping groove 5a1, and the first limiting ring 6c is coaxially abutted in the second sealing ring 5 b;
the second axial seal 6d is configured and arranged opposite the first axial seal 5.
The coaxial fixed setting of second retainer plate 5a is in the interior circumference bottom of external screw thread solid fixed cylinder 3, and the coaxial joint of second sealing washer 5b is in second ring clamping groove 5a1 to make first spacing collar 6c can coaxial butt on second sealing washer 5b top, thereby can prevent that liquid fire extinguishing agent from outwards revealing from flexible 6 periphery clearances of post, thereby improve dock prefill valve's leakproofness.
As shown in fig. 8 and 9, a rubber plate 6e fixed by a spacer bolt is coaxially provided at the top end of the telescopic column 6.
The top end of the telescopic column 6 is also coaxially provided with a rubber plate 6e fixed by a gasket bolt, so that the pressure of the interior of the buffer tank body 1 on the telescopic column 6 acts, and the filling and sealing are facilitated.
Example 2:
compared to embodiment 1, as shown in fig. 3, in this embodiment, the second stopper ring 1a3 coaxially abutting on the top end of the male screw fixing cylinder 3 is further provided at the top end of the inner circumference of the female screw fixing ring 1 a.
The top end still is provided with the second spacing collar 1a3 of coaxial butt at the external screw thread solid fixed cylinder 3 top in the interior circumference of internal thread solid fixed collar 1a to can prevent that external screw thread solid fixed cylinder 3 from droing to jar 1 inside along the axis, thereby improve dock prefill valve's life.
As shown in fig. 3, the top end of the inner periphery of the external thread fixing cylinder 3 is further coaxially provided with a third limiting ring 3c, the inner periphery of the third limiting ring 3c is provided with a limiting groove 3c1 along the axial direction thereof, and the outer periphery of the second axial sealing element 6d is further uniformly provided with a limiting strip 6d1 which is in sliding fit with the third limiting ring 3c along the axial direction thereof.
The interior peripheral top of external screw thread stationary cylinder 3 is still coaxial to be provided with third spacing collar 3c, and all is equipped with along its axial spacing groove 3c1 in the third spacing collar 3c to can make second axial seal 6d can pass through spacing 6d1 along axial and spacing groove 3c1 sliding fit, thereby can prevent that the relative external screw thread stationary cylinder 3 of flexible post from following circumferential direction, thereby be convenient for stably fill the dress.
As shown in fig. 3, a seal cap 3d is also coaxially screwed to the inner peripheral bottom end of the male screw fixing cylinder 3.
The bottom of the inner periphery of the external thread fixing cylinder 3 is coaxially screwed with a sealing cover 3d, so that the sealing performance is improved, and meanwhile, butt joint type liquid filling valve trough communication caused by misoperation is avoided.
In the specific operation of the embodiment, the external thread fixing cylinder 3 is coaxially screwed into the internal thread fixing ring 1a, so that the butt joint type liquid charging valve and the tank body 1 can be conveniently installed and detached; when the external thread fixing cylinder 3 is coaxially screwed into the internal thread fixing ring 1a, the liquid fire extinguishing agent freely leaks outwards through the gap between the external thread fixing cylinder 3 and the internal thread fixing ring 1a due to the large pressure intensity in the tank body 1, the inner circumference bottom end of the internal thread fixing ring 1a and the outer circumference bottom end of the external thread fixing cylinder 3 are respectively provided with a first ladder edge 1a2 and a second ladder edge 3b which are coaxial, and the sealing packing 8 is filled in the first step edge 1a2 and the second step edge 3b, after being coaxially screwed in the first step edge 1a2 and the second step edge 3b by the thread abutting ring 9, the thread abutting ring 9 compresses the bottom end of the sealing packing 8, therefore, the liquid fire extinguishing agent can be prevented from leaking outwards from the gap between the external thread fixing cylinder 3 and the internal thread fixing ring 1a, and the sealing performance of the butt joint type liquid charging valve is improved;
in a non-charging state, two ends of the spring 7 are respectively abutted against the top end of the first limiting ring 6c and the bottom end of the radial sealing element 4, so that the third discharge chute 6b is positioned at the bottom of the radial sealing element 4, the sealing surface of the second axial sealing element 6d is abutted against the top end of the radial sealing element 4 along the vertical direction, the first limiting ring 6c is coaxially abutted against the sealing surface of the first axial sealing element 5, the periphery of the telescopic column 6 is in sliding fit with the inner sealing surface of the radial sealing element 4, and therefore the high-pressure fire extinguishing agent in the tank body 1 is prevented from leaking from a gap;
during filling, the tank body 1 is coaxially abutted against the filling head, so that the filling head is coaxially inserted into the feed chute 6a, the first limiting ring 6c overcomes the elastic force of the spring 7 and rises vertically, namely the spring 7 coaxially rises in the external thread fixing cylinder 3, and then the third discharge chute 6b instead is communicated with the second discharge chute 3a along the radial direction, and the second discharge chute 3a is communicated with the first discharge chute 1a1, namely the filling head is communicated with the interior of the tank body 1, namely a high-pressure fire extinguishing agent in the filling head quickly passes through the feed chute 6a, the third discharge chute 6b, the second discharge chute 3a and the first discharge chute 1a1 to enter the tank body 1, so that the quick filling of a fire extinguisher is realized, and the tank body 1 and the head assembly 2 do not need to be separated;
after filling the dress, make the head of filling stop the flexible post 6 of butt, make flexible post 6 reset under spring 7 elastic reaction to make third blown down tank 6b remove to second blown down tank 3a bottom, thereby prevent that the inside liquid fire extinguishing agent of jar body 1 from leaking.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A fire extinguisher capable of rapidly supplementing fire extinguishing agent comprises a tank body (1) and a head assembly (2), and is characterized in that an internal thread fixing ring (1a) is arranged at the inner bottom end of the tank body (1), and first discharge chutes (1a1) which are radially arranged are uniformly distributed on the circumferential surface of the internal thread fixing ring (1 a); still including dock prefill valve, dock prefill valve including:
the external thread fixing cylinder (3) is coaxially screwed in the internal thread fixing ring (1a), and a second discharge groove (3a) communicated with the first discharge groove (1a1) along the radial direction is formed in the circumferential surface of the external thread fixing cylinder (3);
the radial seal (4) and the first axial seal (5), the radial seal (4) and the first axial seal (5) are respectively and coaxially arranged at the top end and the bottom end of the inner periphery of the external thread fixing cylinder (3), the sealing surface of the radial seal (4) faces to the axis of the radial seal, and the sealing surface of the first axial seal (5) faces to the radial seal (4) coaxially;
the telescopic column (6) is coaxially and slidably arranged in the radial sealing element (4), the top end of the telescopic column coaxially penetrates through the top end of the external thread fixing cylinder (3), a feeding groove (6a) is coaxially arranged at the bottom end of the telescopic column (6), third discharging grooves (6b) are uniformly distributed at the top end of the feeding groove (6a) along the radial direction, the third discharging grooves (6b) are positioned at the bottom of the radial sealing element (4), a first limiting ring (6c) abutted to a sealing surface of the first axial sealing element (5) is further arranged at the bottom end of the periphery of the telescopic column (6), a second axial sealing element (6d) positioned at the top end of the radial sealing element (4) is further coaxially arranged at the top end of the periphery of the telescopic column (6), and a sealing surface of the second axial sealing element (6d) is abutted to the top end of the radial sealing element (;
the spring (7), the coaxial cover of spring (7) is established on flexible post (6), just spring (7) both ends respectively the butt at first spacing collar (6c) top and radial seal spare (4) bottom.
2. The fire extinguisher for rapidly replenishing fire extinguishing agent according to claim 1, wherein the bottom end of the inner periphery of the internally threaded fixing ring (1a) and the bottom end of the outer periphery of the externally threaded fixing cylinder (3) are further provided with a first step edge (1a2) and a second step edge (3b) which are coaxial, respectively; the sealing packing structure is characterized by further comprising a sealing packing (8) and a thread abutting ring (9), wherein the sealing packing (8) is coaxially filled in the first step edge (1a2) and the second step edge (3b), the thread abutting ring (9) is coaxially screwed in the ring grooves formed by combining the first step edge (1a2) and the second step edge (3b), and the top end of the thread abutting ring abuts against the bottom end of the sealing packing (8).
3. A fire extinguisher for rapidly replenishing a fire extinguishing agent according to claim 1, wherein a positioning ring (6a1) is further coaxially disposed in the feed chute (6a), and an inner diameter of the positioning ring (6a1) is gradually increased from the center plane toward both ends thereof.
4. A fire extinguisher for quickly replenishing a fire extinguishing agent according to claim 1, wherein the third discharging chute (6b) is inclined upward in a radial direction of the feeding chute (6 a).
5. A fire extinguisher with rapid replenishment of fire extinguishing agent according to claim 1, characterized in that the radial seal (4) comprises;
the first fixing ring (4a) is coaxially and fixedly arranged at the top end of the inner periphery of the external thread fixing cylinder (3), and a first ring clamping groove (4a1) is coaxially arranged on the inner periphery of the first fixing ring (4 a);
the first sealing ring (4b) is coaxially clamped in the first ring clamping groove (4a1), and the inner periphery of the first sealing ring (4b) is in interference fit with the outer periphery of the telescopic column (6).
6. A fire extinguisher with rapid replenishment of fire extinguishing agent according to claim 1, characterized in that the first axial seal (5) comprises:
the second fixing ring (5a) is coaxially and fixedly arranged at the bottom end of the inner periphery of the external thread fixing cylinder (3), and the top end of the second fixing ring (5a) is coaxially provided with a second ring clamping groove (5a 1);
the second sealing ring (5b) is coaxially clamped in the second ring clamping groove (5a1), and the first limiting ring (6c) is coaxially abutted in the second sealing ring (5 b);
the second axial seal (6d) is configured and arranged opposite the first axial seal (5) and the sealing surface.
7. A fire extinguisher for rapidly replenishing a fire extinguishing agent according to claim 1, wherein the top end of the telescopic column (6) is further coaxially provided with a rubber plate (6e) fixed by a spacer bolt.
8. The fire extinguisher capable of rapidly replenishing fire extinguishing agent according to claim 1, wherein the inner circumference top end of the internal thread fixing ring (1a) is further provided with a second limiting ring (1a3) which is coaxially abutted on the top end of the external thread fixing cylinder (3).
9. The fire extinguisher for rapidly replenishing fire extinguishing agent according to claim 1, wherein the top end of the inner periphery of the externally threaded fixed cylinder (3) is further coaxially provided with a third limiting ring (3c), the inner periphery of the third limiting ring (3c) is provided with a limiting groove (3c1) along the axial direction thereof, and the outer periphery of the second axial sealing element (6d) is further uniformly provided with a limiting strip (6d1) which is in sliding fit with the third limiting ring (3c) along the axial direction thereof.
10. The fire extinguisher for rapidly replenishing fire extinguishing agent according to claim 1, wherein the sealing cap (3d) is further coaxially screwed to the bottom end of the inner circumference of the externally threaded fixed cylinder (3).
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| CN202110167164.3A CN112957640B (en) | 2021-02-07 | 2021-02-07 | Fire extinguisher capable of quickly supplementing fire extinguishing agent |
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| CN202110167164.3A CN112957640B (en) | 2021-02-07 | 2021-02-07 | Fire extinguisher capable of quickly supplementing fire extinguishing agent |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112957640B (en) | 2022-04-26 |
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