CN108434633B - Filling head for filling and inflating device of dry powder fire extinguisher - Google Patents
Filling head for filling and inflating device of dry powder fire extinguisher Download PDFInfo
- Publication number
- CN108434633B CN108434633B CN201810573223.5A CN201810573223A CN108434633B CN 108434633 B CN108434633 B CN 108434633B CN 201810573223 A CN201810573223 A CN 201810573223A CN 108434633 B CN108434633 B CN 108434633B
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- dry powder
- cavity
- filling
- fire extinguisher
- pipe
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/76—Details or accessories
Abstract
The invention discloses a filling head for a filling and inflating device of a dry powder fire extinguisher, which comprises a vacuum pumping cavity which is hermetically matched with a bottle body and is provided with a pumping pipe joint, and is characterized in that: the vacuum extraction cavity top is provided with the dry powder and crosses the material chamber, the dry powder crosses material chamber top and has seted up the concora crush through-hole, the concora crush through-hole cooperatees with lift cylinder driven sealed end cap, and the dry powder crosses the material chamber lateral wall on the intercommunication have the slope upwards and extend to the inlet pipe in the cavity, inlet pipe tip is provided with the swing closure plate of hinge point at the pipe wall top, and dry powder crosses material chamber bottom and is provided with the notes material pipe that passes the vacuum extraction cavity and extend to the bottle. The invention has simple structure, ingenious design, firmness and durability, effectively improves the filling precision and the filling efficiency, avoids the increase of labor amount caused by repeated reworking, lightens the labor intensity, improves the field environment and saves the filling cost.
Description
Technical Field
The invention relates to the technical field of dry powder fire extinguisher filling, in particular to a filling head for a filling and inflating device of a dry powder fire extinguisher.
Background
Fire extinguishers are usually filled with dry powder under negative pressure and vacuum. As shown in figure 1, the existing vacuum filling head comprises a vacuum pumping cavity 1 ' covered around the fire extinguisher bottle mouth and connected with the bottle body in a sealing way, a powder filling channel arranged at the top of the vacuum pumping cavity 1 ' comprises an outer shell 2 ' and an inner hose 3 ', two ends of the hose 3 ' are connected with the shell 2 ' in a sealing way, and the outer wall of the hose 3 ' and the inner wall of the shell 2 ' form an inflating cavity 4 '. When powder is filled, the vacuum pumping operation is carried out in the bottle body through the negative pressure device connected with the vacuum pumping cavity 1 ', then dry powder is filled into the bottle body through the hose 3', after a period of time, the inflation cavity 4 'is pressurized, the hose 3' is closed (as shown in figure 2), and the powder filling is finished. The hose 3' is frequently deformed and is very easy to damage, and the overhauling and replacing costs are high; secondly, the powder filling operation cannot be stopped immediately, the filling precision is not high, rework is needed after the powder exceeds the standard, and the workload is large; thirdly, powder accumulation is easy to occur at the edge of the bottle mouth, which not only wastes but also influences the subsequent operation, and when the powder is scattered on the site, environmental pollution is easy to cause; finally, because the negative pressure can not be quickly relieved after filling, the filling head is not easy to be separated from the bottle body, and the operation time is prolonged.
Disclosure of Invention
The invention provides a filling head for a filling and inflating device of a dry powder fire extinguisher, and aims to solve the problems of time and labor waste, low precision, low efficiency and high cost when the conventional filling head is used for filling.
In order to achieve the purpose, the invention can adopt the following technical scheme:
the invention relates to a filling head for a filling and inflating device of a dry powder fire extinguisher, which comprises a vacuum pumping cavity which is hermetically matched with a bottle body and is provided with a pumping pipe joint, and is characterized in that: the vacuum extraction cavity top is provided with the dry powder and crosses the material chamber, the dry powder crosses material chamber top and has seted up the concora crush through-hole, the concora crush through-hole cooperatees with lift cylinder driven sealed end cap, and the dry powder crosses the material chamber lateral wall on the intercommunication have the slope upwards and extend to the inlet pipe in the cavity, inlet pipe tip is provided with the swing closure plate of hinge point at the pipe wall top, and dry powder crosses material chamber bottom and is provided with the notes material pipe that passes the vacuum extraction cavity and extend to the bottle.
The two air exhaust pipe joints are uniformly and symmetrically distributed on the side wall of the vacuum air exhaust cavity.
The bottom of the dry powder passing cavity is of a necking structure.
The vacuum pumping cavity is connected with the dry powder passing cavity in a bolted mode, and the material injection pipe comprises an upper section and a lower section, wherein the upper section is located in the dry powder passing cavity, and the lower section is located in the vacuum pumping cavity.
And a sealing rubber sleeve is arranged at the bottom of the vacuum pumping cavity.
The feed pipe is 30-45 degrees from the horizontal direction.
The filling head for the filling and inflating device of the dry powder fire extinguisher, provided by the invention, has the advantages of simple structure, ingenious design, firmness and durability, and realizes the rapid conversion of negative pressure suction and negative pressure relief by arranging the air exhaust pipe joint in the vacuum air exhaust cavity and arranging the flat pressing through hole at the top of the dry powder material passing cavity; meanwhile, the dry powder can be filled by opening and stopping the dry powder by matching with a feeding pipe with a swing blocking plate; in addition, the material injection pipe extends into the bottle body, so that powder can be prevented from being scattered to the bottle mouth, when the sealing plug is opened, external air enters the dry powder passing cavity, and all powder remained in the cavity can be blown into the bottle. By the aid of the measures, filling precision and filling efficiency are effectively improved, increase of labor amount caused by repeated reworking is avoided, labor intensity is reduced, field environment is improved, and filling cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of a feeding state of a conventional filling head.
Fig. 2 is a schematic structural diagram of a filling head in the prior art when feeding is stopped.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic longitudinal sectional view of fig. 3.
Detailed Description
As shown in fig. 3 and 4, the filling head for the dry powder fire extinguisher filling and aerating device comprises a vacuum pumping cavity 1 which is in sealing fit with a bottle body, and two pumping pipe joints Q are uniformly distributed on the side wall of the vacuum pumping cavity 1. A dry powder passing cavity 2 is arranged above the vacuum pumping cavity 1, a flat pressing through hole is formed in the top of the dry powder passing cavity 2, and the flat pressing through hole is matched with a sealing plug 3 driven by a needle-shaped lifting cylinder. The side wall of the dry powder passing cavity 2 is communicated with a feeding pipe 4 which is inclined upwards by 30-45 degrees and extends into the cavity, the end part of the feeding pipe 4 is provided with a swing blocking plate 5 with a hinged point at the top of the pipe wall, and the bottom of the dry powder passing cavity 2 is provided with an injection pipe 6 which penetrates through the vacuum pumping cavity 1 and extends into the bottle body. In order to facilitate maintenance, the vacuum pumping cavity 1 and the dry powder material passing cavity 2 are in a bolted connection split structure, and correspondingly, the material injection pipe 6 is divided into an upper section positioned in the dry powder material passing cavity 2 and a lower section positioned in the vacuum pumping cavity 1. In order to facilitate blanking, the bottom of the material cavity of the dry powder passing cavity 2 is of a necking structure. In order to increase the air tightness, the sealing rubber sleeve 7 which is directly contacted with the bottle body is arranged at the bottom of the vacuum pumping cavity 1.
When the dry powder filling device is used, the sealing rubber sleeve 7 is in sealing joint with a bottle body, then the vacuum pumping cavity 1, the dry powder filling cavity 2 communicated with the vacuum pumping cavity and the fire extinguisher bottle body are vacuumized, after a set vacuum degree is reached, the swing blocking plate 5 is automatically opened under the vacuum effect, dry powder enters the dry powder filling cavity 2 through the feeding pipe 4 and is injected into the fire extinguisher bottle body through the injection pipe 6, the electric control feeding valve of the feeding pipe 4 is automatically closed to stop feeding when the dry powder injection amount reaches a standard, the sealing plug 3 is moved upwards to communicate the dry powder filling cavity 2 with the atmosphere, when external air enters the dry powder filling cavity 2 from the flat pressing through hole, residual powder at the bottom of the dry powder filling cavity 2 can be completely blown into the bottle body, and after a filling head is separated from the bottle body, the residual powder is prevented from scattering and causes material waste and field pollution. When the pressure inside and outside the dry powder passing cavity 2 is balanced, the swing blocking plate 5 is automatically attached to the feeding pipe 4.
Claims (5)
1. The use method of the filling head for the filling and inflating device of the dry powder fire extinguisher comprises a vacuum pumping cavity which is matched with a bottle body in a sealing way and is provided with a pumping pipe joint, and is characterized in that: a dry powder passing cavity is arranged above the vacuum pumping cavity, a flat pressing through hole is formed in the top of the dry powder passing cavity and matched with a sealing plug driven by a lifting cylinder, a feeding pipe which is obliquely upward and extends into the cavity is communicated with the side wall of the dry powder passing cavity, a swinging plug plate with a hinged point at the top of the pipe wall is arranged at the end part of the feeding pipe, a feeding pipe which penetrates through the vacuum pumping cavity and extends into the bottle body is arranged at the bottom of the dry powder passing cavity, and a sealing rubber sleeve is arranged at the bottom of the vacuum pumping cavity;
when the dry powder filling device is used, the sealing rubber sleeve is in sealing joint with the bottle body, then the vacuum pumping cavity, the dry powder passing cavity communicated with the vacuum pumping cavity and the fire extinguisher bottle body are vacuumized, after a set vacuum degree is reached, the swing blocking plate is automatically opened under the vacuum action, dry powder enters the dry powder passing cavity through the feeding pipe and is injected into the fire extinguisher bottle body through the injection pipe, when the injection amount of the dry powder reaches the standard, the electric control feeding valve of the feeding pipe is automatically closed, feeding is stopped, the sealing blocking head is moved upwards, the dry powder passing cavity is communicated with the atmosphere, when external air enters the dry powder passing cavity from the flat pressure through hole, all residual powder at the bottom of the dry powder passing cavity can be blown into the bottle body, and after a filling head is separated from the bottle body, the residual powder is prevented from being scattered to cause material waste and field pollution; when the pressure inside and outside the dry powder material passing cavity is balanced, the swing blocking plate is automatically attached to the feeding pipe.
2. The method of using a filling head for a dry powder fire extinguisher filling gas device according to claim 1, wherein: the two air exhaust pipe joints are uniformly and symmetrically distributed on the side wall of the vacuum air exhaust cavity.
3. The method of using a filling head for a dry powder fire extinguisher filling gas device according to claim 1, wherein the method comprises the following steps: the bottom of the dry powder passing cavity is of a necking structure.
4. The method of using a filling head for a dry powder fire extinguisher filling gas device according to claim 1, wherein: the vacuum pumping cavity is connected with the dry powder passing cavity in a bolted mode, and the material injection pipe comprises an upper section and a lower section, wherein the upper section is located in the dry powder passing cavity, and the lower section is located in the vacuum pumping cavity.
5. The method of using a filling head for a dry powder fire extinguisher filling gas device according to claim 1, wherein the method comprises the following steps: the feeding pipe is 30-45 degrees to the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573223.5A CN108434633B (en) | 2018-06-06 | 2018-06-06 | Filling head for filling and inflating device of dry powder fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810573223.5A CN108434633B (en) | 2018-06-06 | 2018-06-06 | Filling head for filling and inflating device of dry powder fire extinguisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108434633A CN108434633A (en) | 2018-08-24 |
| CN108434633B true CN108434633B (en) | 2023-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810573223.5A Active CN108434633B (en) | 2018-06-06 | 2018-06-06 | Filling head for filling and inflating device of dry powder fire extinguisher |
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| CN (1) | CN108434633B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114861B (en) * | 2020-01-20 | 2021-06-11 | 郑州市中岳消防器材有限公司 | Dry powder fire extinguisher filling process |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB592002A (en) * | 1943-09-20 | 1947-09-04 | Golden State Company Ltd | Powder filling apparatus and method |
| CN201080248Y (en) * | 2007-08-17 | 2008-07-02 | 上海天雨消防设备有限公司 | Dry powder automatic filling machine for extinguisher |
| CN103612835B (en) * | 2013-12-03 | 2015-09-09 | 北京北机机电工业有限责任公司 | Valve body structure and the powder bottle of this valve body structure is set |
| JP2016041600A (en) * | 2014-08-18 | 2016-03-31 | ニューロング工業株式会社 | Powder and granular material filling device |
| CN205055289U (en) * | 2015-09-08 | 2016-03-02 | 连云港市天意消防器材有限公司 | Automatic recovery unit of installation that fills of fire extinguisher dry powder |
| CN205707439U (en) * | 2016-05-26 | 2016-11-23 | 河南豫辰药业股份有限公司 | A kind of powder solid vacuum feeding packaging system |
| CN208405829U (en) * | 2018-06-06 | 2019-01-22 | 河南省绿博能源设备有限公司 | Filling head for the filling air charging system of dry powder extinguisher |
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- 2018-06-06 CN CN201810573223.5A patent/CN108434633B/en active Active
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| CN108434633A (en) | 2018-08-24 |
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