CN202961584U - Fire extinguisher for improving leak tightness - Google Patents
Fire extinguisher for improving leak tightness Download PDFInfo
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- CN202961584U CN202961584U CN 201220625304 CN201220625304U CN202961584U CN 202961584 U CN202961584 U CN 202961584U CN 201220625304 CN201220625304 CN 201220625304 CN 201220625304 U CN201220625304 U CN 201220625304U CN 202961584 U CN202961584 U CN 202961584U
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- fire extinguisher
- bend pipe
- insertion end
- bottleneck
- sealing
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Abstract
The utility model discloses a fire extinguisher for improving leak tightness. The fire extinguisher comprises a steel cylinder, a nozzle and a bend pipe which connects the opening of the steel cylinder with the nozzle, wherein one end, which is matched with the steel cylinder, of the bend pipe is an insertion end inserted into a cylinder opening, two seal rings are sleeved on the insertion end and used for sealing the inner wall of the cylinder opening, the insertion end is also provided with a flange which is distributed along the peripheral direction, and a compression nut is in screw thread fit with the opening of the steel cylinder and has an inner flanging for extruding the flange. Compared with the prior art, according to the fire extinguisher, three sealing processes are arranged between the bend pipe and the cylinder opening, so that the leak tightness is greatly improved, and the use safety of the fire extinguisher is increased; an elastic washer is a general part and convenient to change; the fire extinguisher has a small size; and the raw material of the compression nut is saved, so that the production cost is lowered.
Description
Technical field
The utility model relates to a kind of fire extinguisher, relates in particular to a kind of fire extinguisher that improves sealing.
Background technology
Fire extinguisher is one of common fireproofing installation, wherein carbon dioxide extinguisher is safe and reliable, and clean environment firendly after using, be applicable to put out oils, flammable liquid, fuel gas, electric equipment etc. from the beginning of fire, are the fire-fighting equipments of vehicle, boats and ships, factory, office, R﹠D institution's indispensability.
Fire extinguisher is mainly to take to completely cut off methods such as suffocating, cool, prevent the heating power transmission to realize fire extinguishing, and wherein, carbon dioxide extinguisher mainly relies on smothering action and part cooling effect fire extinguishing.Carbon dioxide has higher density, is about 1.5 times of air.Under normal pressure, liquid carbon dioxide can be vaporized immediately, and the liquid carbon dioxide of general 1kg can produce the approximately gas of 0.5 cubic metre.Therefore, during fire extinguishing, carbon dioxide can deaeration and be enclosed in the surface of burning object or be distributed in more airtight space, reduces around comburant or the oxygen concentration in protective zone, produces the fire extinguishing of smothering action.In addition, when carbon dioxide sprays from reservoir vessel, can be vaporizated into rapidly gaseous state by liquid state, and from absorbing heat on every side, play cooling effect.
The fire extinguishers such as carbon dioxide extinguisher are because of the low-temperature characteristics of its extinguishing chemical, thus require use procedure avoid leaking cause the accident and spray in cause operating personnel's frostbite.More the matching used rigidity jet pipe of present domestic carbon dioxide extinguisher adopts O-ring seals to add nylon washer and seals, select simultaneously the carbon steel wire spring to carry out the location of jet pipe.
According to the regulation of carbon dioxide extinguisher service life and round of visits, make at the above-mentioned rigidity jet pipe of employing often to occur the situation that extinguishing chemical leaks, poor sealing performance when spraying fire extinguisher.Find when keeping in repair, the O-ring seals of this rigidity jet pipe is fragile, and nylon washer easily comes off, loses, and takes normal replacing, has increased consumer's use cost; And because carbon steel wire spring volume is large, make the volume of bend pipe nut also relatively want large, also increased manufacturing cost to enterprise; Simultaneously, as consumable accessory in ordinary maintenance, the non-general part of carbon steel wire spring brings inconvenience to the maintenance of jet pipe.
The utility model content
The utility model provides a kind of fire extinguisher that improves sealing, has solved the poor problem of existing fire extinguisher sealing.
The technical solution of the utility model is:
A kind of fire extinguisher that improves sealing, comprise steel cylinder, shower nozzle and be connected to the bottleneck of described steel cylinder and the bend pipe between shower nozzle, the end that described bend pipe coordinates with steel cylinder is the insertion end that is plugged in bottleneck, described insertion end cover has two sealing rings that are used for the bottleneck inner wall sealing, described insertion end is also with the flange along circumferential distribution, the whorl of bottleneck of described steel cylinder is combined with clamp nut, and this clamp nut has be used to the in-flanges that pushes described flange.
The insertion end of bend pipe is inserted the bottleneck of steel cylinder, the end face of flange and this bottleneck fits, and between the flange of described insertion end and the end face of bottleneck, nylon washer is installed.The gap occurs in order to the applying of avoiding this flange and bottleneck end face, cause leakage.Two sealing rings on insertion end coordinate with the bottleneck inner wall sealing, screw described clamp nut, namely realize sealing.
For preventing that described nylon washer from coming off, the utility model is provided with two sealing rings in the insertion end of bend pipe.For improving sealing, preferably, described sealing ring has circular cross section.Circular cross section can increase the contact area of sealing circle and steel bottle mouth inwall, the frictional force between greatly having increased both.
Come off from bend pipe in the process of maintenance insert to be installed or extracted to bend pipe for exempting from described sealing ring, the outer wall of described insertion end is provided with the storage tank of two annulars, and described two sealing rings are around the home in the storage tank of correspondence.
Preferably, the storage tank of described two annulars is parallel to each other.The storage tank that is parallel to each other easily arranges the saving operation, more can make around the home therein two sealing rings that are parallel to each other and the applying between the bottleneck inwall tightr.
Be sealing ring landing from storage tank of exempting from circular cross-section, preferably, described storage tank has the cross section of rectangle.The height of described storage tank is preferably less than the diameter of sealing circle, greater than the radius of sealing ring.
Generally, for the ease of spraying, the tube wall of fire extinguisher bend pipe is all thinner, and therefore, the insertion end of described bend pipe is fixed with reinforcing sleeve, and described flange and two storage tanks all are on the outer wall of this reinforcing sleeve.
Fire extinguisher in use often needs extinguishing chemical is sprayed to all directions, can be upper fixing in any direction for making described bend pipe, be provided with elastic washer between the flange of described insertion end and the in-flanges of clamp nut.After clamp nut screwed, bend pipe can rotate on arbitrarily angled, and is fixed on the desired position by pushing described elastic washer.
Be to enlarge jet length and the scope of fire extinguisher, described bend pipe outside also is surrounded by sleeve pipe.Described nozzle connecting is connected on this sleeve pipe.The setting of sleeve pipe also has protection effect, avoids the low temperature extinguishing chemical such as liquefied carbon dioxide because absorb heat from environment, operating personnel to be caused frostbite in injection.
In sum, will be fixed with the insertion end access steel bottle mouth of the bend pipe of reinforcing sleeve, the flange on described bend pipe and bottleneck end face fit, and form sealed environment by the nylon washer that is arranged between the two; Two sealing rings and the bottleneck inner wall sealing that are positioned at the bend pipe storage tank are fitted, and have further improved sealing; Rotatably compress nut, make its in-flanges crush ribs, finally complete the installation of bend pipe, obtained the utility model fire extinguisher.During use, under the effect of elastic washer, bend pipe can be in arbitrarily angled lower rotation or stop, and the sleeve pipe of extinguishing chemical outside wrapping in bend pipe sprays from shower nozzle.
Compared with prior art, the beneficial effects of the utility model are:
(1) have the three seals operation between the bend pipe of the utility model fire extinguisher and bottleneck, greatly improved sealing, increased the safety in utilization of fire extinguisher;
(2) elastic washer of the utility model fire extinguisher is general part, is convenient to replacing, and small volume, has saved the raw material of clamp nut, reduces manufacturing cost.
Description of drawings
Fig. 1 is the structural representation that the utility model improves the fire extinguisher of sealing.
Fig. 2 is the structural representation of bend pipe and bottleneck junction in Fig. 1.
The specific embodiment
The below is described in further detail the specific embodiment of the present utility model by reference to the accompanying drawings take portable carbon dioxide extinguisher as example.
As shown in Figure 1, a kind of portable carbon dioxide extinguisher that improves sealing comprises: steel cylinder 1, sleeve pipe 3, and shower nozzle 4; Also comprise and wrap in sleeve pipe 3 and an end inserts the bend pipe 2 of steel bottle mouth 5.The structure of bend pipe 2 and bottleneck 5 junctions as shown in Figure 2.
As shown in Figure 2, sleeve pipe 3 is enclosed in bend pipe 2 outsides.Sleeve pipe 3 is extensions of bend pipe 2, and shower nozzle 4 is connected on sleeve pipe 3, can enlarge jet length and the scope of fire extinguisher.The setting of sleeve pipe 3 also has protection effect, avoids liquefied carbon dioxide because absorb heat from environment, operating personnel to be caused frostbite when spraying.
As seen from Figure 2, the end that coordinates with steel cylinder 1 of bend pipe 2 is the insertion end 6 that is plugged in bottleneck 5.Insertion end 6 covers have two sealing rings 7, and also with the flange 8 along circumferential distribution, bottleneck 5 is with external screw thread for insertion end 6, and clamp nut 9 is threaded engagement with it, and this clamp nut 9 has the in-flanges 12 for crush ribs 8.Insertion end 6 is inserted bottleneck 5, screw described clamp nut 9, namely realize sealing.
The flange 8 of insertion end 6 fits with the end face of bottleneck 5, and the nylon washer 11 of annular is installed both, avoids flange 8 and the applying of bottleneck 5 end faces the gap to occur, causes leakage.
For preventing that this nylon washer 11 from coming off, the utility model is provided with 7, two sealing rings 7 of two sealing rings in the insertion end 6 of bend pipe 2 and all coordinates with bottleneck 5 inner wall sealings.For improving sealing, sealing ring 7 has circular cross section simultaneously.Circular cross section can increase the contact area of sealing ring 7 and bottleneck 5 inwalls, the frictional force between greatly having increased both.
As shown in Figure 2,10, two sealing rings of storage tank 7 that the outer wall of insertion end 6 is provided with two annulars around the home in the storage tank 10 of correspondence, come off from bend pipe 2 in order to avoid sealing ring 7 inserts in the process of installing or extracting maintenance at bend pipe 2 respectively.And two storage tanks 10 are parallel to each other.The storage tank 10 that is parallel to each other can keep around the home two sealing rings 7 therein to be parallel to each other, and makes the applying between sealing ring 7 and bottleneck 5 inwalls tightr.
Because the cross section of sealing ring 7 is circular, for exempting from sealing ring 7 landing from storage tank 10, the storage tank 10 of this specific embodiment has the cross section of rectangle, and its height should be less than the diameter of sealing ring 7, greater than the radius of sealing ring 7.
Fire extinguisher in use often needs extinguishing chemical is sprayed to all directions, can be upper fixing in any direction for making bend pipe 2, be provided with elastic washer 13 between the flange 8 of insertion end 6 and the in-flanges 12 of clamp nut 9.After clamp nut 9 screwed, bend pipe 2 can rotate on arbitrarily angled, and is fixed on the desired position by extruding elastic washer 13.
As seen from Figure 2, because the tube wall of fire extinguisher bend pipe 2 is thinner, therefore, the insertion end 6 of bend pipe 2 is fixed with reinforcing sleeve 14, and flange 8 and two storage tanks 10 all are on the outer wall of this reinforcing sleeve 14.
The insertion end 6 that is fixed with the bend pipe 2 of reinforcing sleeve 14 is accessed the bottleneck 5 of steel cylinders 1, the flange 8 on bend pipe 2 fits with bottleneck 5 end faces, and forms sealed environments by the nylon washer 11 that is arranged between the two; Two sealing rings 7 that are positioned at the storage tank 10 of bend pipe 2 fit with bottleneck 5 inwalls, have further improved sealing; Rotatably compress nut 9, make its in-flanges 12 crush ribs 8, finally complete the installation of bend pipe 2, obtained the utility model fire extinguisher.During use, under the effect of elastic washer 13, bend pipe 2 can be in arbitrarily angled lower rotation or stop, and the sleeve pipe 3 of extinguishing chemical outside wrapping in bend pipe 2 sprays from shower nozzle 4.
The above is only better implementation example of the present utility model, is not limited to the utility model, and is all within the utility model spirit and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. fire extinguisher that improves sealing, comprise steel cylinder, shower nozzle and be connected to the bottleneck of described steel cylinder and the bend pipe between shower nozzle, it is characterized in that, the end that described bend pipe coordinates with steel cylinder is the insertion end that is plugged in bottleneck, described insertion end cover has two sealing rings that are used for the bottleneck inner wall sealing, also with the flange along circumferential distribution, the whorl of bottleneck of described steel cylinder is combined with clamp nut to described insertion end, and this clamp nut has be used to the in-flanges that pushes described flange.
2. fire extinguisher as claimed in claim 1, is characterized in that, between the flange of described insertion end and the end face of bottleneck, nylon washer is installed.
3. fire extinguisher as claimed in claim 1, is characterized in that, described sealing ring has circular cross section.
4. fire extinguisher as claimed in claim 1, is characterized in that, the outer wall of described insertion end is provided with the storage tank of two annulars, and described two sealing rings are around the home in the storage tank of correspondence.
5. fire extinguisher as claimed in claim 4, is characterized in that, described storage tank has the cross section of rectangle.
6. fire extinguisher as claimed in claim 4, is characterized in that, the storage tank of described two annulars is parallel to each other.
7. described fire extinguisher as arbitrary in claim 4～6, is characterized in that, the insertion end of described bend pipe is fixed with reinforcing sleeve, and described flange and two storage tanks all are on the outer wall of this reinforcing sleeve.
8. fire extinguisher as claimed in claim 7, is characterized in that, is provided with elastic washer between the flange of described insertion end and the in-flanges of clamp nut.
9. fire extinguisher as claimed in claim 8, is characterized in that, described bend pipe outside also is surrounded by sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625304 CN202961584U (en) | 2012-11-21 | 2012-11-21 | Fire extinguisher for improving leak tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625304 CN202961584U (en) | 2012-11-21 | 2012-11-21 | Fire extinguisher for improving leak tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202961584U true CN202961584U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220625304 Expired - Lifetime CN202961584U (en) | 2012-11-21 | 2012-11-21 | Fire extinguisher for improving leak tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202961584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091831A (en) * | 2020-09-11 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Nozzle for shot blasting |
-
2012
- 2012-11-21 CN CN 201220625304 patent/CN202961584U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091831A (en) * | 2020-09-11 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Nozzle for shot blasting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312367, No. three, No. five Chaoyang Road, Hangzhou Bay Industrial Park, Shaoxing, Zhejiang, Shangyu Patentee after: Zhejiang Jindun Fire Equipment Co.,Ltd. Address before: 312367, No. three, No. five Chaoyang Road, Hangzhou Bay Industrial Park, Shaoxing, Zhejiang, Shangyu Patentee before: ZHEJIANG JINDUN FIRE-FIGHTING EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |