CN2697416Y - Safety valve cap with self-locking device - Google Patents

Safety valve cap with self-locking device Download PDF

Info

Publication number
CN2697416Y
CN2697416Y CN 200420000333 CN200420000333U CN2697416Y CN 2697416 Y CN2697416 Y CN 2697416Y CN 200420000333 CN200420000333 CN 200420000333 CN 200420000333 U CN200420000333 U CN 200420000333U CN 2697416 Y CN2697416 Y CN 2697416Y
Authority
CN
China
Prior art keywords
valve
self
locking
sleeve
bolt sleeve
Prior art date
Application number
CN 200420000333
Other languages
Chinese (zh)
Inventor
夏建中
Original Assignee
夏建中
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 夏建中 filed Critical 夏建中
Priority to CN 200420000333 priority Critical patent/CN2697416Y/en
Application granted granted Critical
Publication of CN2697416Y publication Critical patent/CN2697416Y/en

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Abstract

The utility model relates to a safety valve cap with self-locking function, being used for a domestic steam cleaner as a safety releasing device when the steam exceeds certain amount. The utility model can be arranged on the steam pressure container, comprising a plastic valve body, a valve sleeve, an adjusting screw, two springs, a bolt sleeve, a sealing ring, a valve core, a valve flap and a steel ball. The utility model is characterized in that the bolt sleeve is sheathed outside the valve sleeve, an exhaust venthole is provided at a place on the bolt sleeve corresponding to the valve sleeve, the valve core is in the valve sleeve and is on one end of the valve sleeve under the action of the spring, one end of the valve core is provided with a venthole, the valve flap is on the table edge of the venthole and covers the venthole under the action of the spring, the steel ball is arranged in a hole of an adjacent chamber of the valve sleeve, the diameter of the steel ball is larger than the wall thickness of the valve sleeve, so part of the steel ball is fastened in the corresponding recess of the bolt sleeve, the other end is supported against the upper edge of the reduced outer wall diameter of the valve core. The utility model has a simple and compact structure, reasonable layout and makes use of the features to achieve the functions of overvoltage protection and dismantling self-locking with voltage, even if the operator operates wrongly, the bolt sleeve can not be screwed off, so the operator can not be burned by the steam.

Description

The safe bonnet that has self-locking device
Technical field
The utility model relates to a kind of safe bonnet that has auto-lock function, and this safe bonnet generally is used for the household steam cleaning device and surpasses safe release device after the certain numerical value as a kind of steam.
Background technique
Domestic and international existing household steam cleaning device product, be to utilize steam to soften dirt, and then cleaning dirt, because the cleaner product can produce steam, for avoid vapor pressure excessive produce dangerous, safe bonnet then generally all is set, the function of safe bonnet is the steam that can discharge in vent automatically when vapor pressure is excessive the heating cavity, but existing safe bonnet does not all have the function of avoiding vapor pressure in the heating cavity not to be released or stoping safe bonnet to be outwarded winding automatically when not discharged fully in normal using process, when the operator because of carelessness with safe bonnet consciously or unconscious outwarding winding might be scalded by steam during operation.
Summary of the invention
The utility model is to be scalded design a kind of by steam when operating because of carelessness and have the steam overvoltage protection simultaneously for solving the aforesaid operations person, and dismantling safe bonnet has the pressure self-locking, even misoperation also can not be scalded operator's device fully.
The technical solution of the utility model is: a kind of safe bonnet that has self-locking device, can be arranged on the vapor pressure container, comprise the plastics valve body, valve pocket, adjusting screw, two springs, bolt sleeve, seal ring, spool, flap, steel ball, it is characterized in that bolt sleeve is enclosed within outside the valve pocket, bolt sleeve and valve pocket corresponding section are provided with exhaust port, spool is positioned at valve pocket, and under spring action, be positioned at an end of valve pocket, spool one end is provided with vent, flap be positioned at the spool vent platform along last, under the effect of spring, cover vent, steel ball is not in the hole between sleeve wall, the diameter of steel ball snaps in the depression of bolt sleeve correspondence its part greater than the valve pocket wall thickness, and the other end withstands on the upper edge that spool has the convergent outer diameter.
The utility model has the caution lid that can identify placement direction or warning content in the upper center of plastics valve body; Between bolt sleeve and plastics valve body, be provided with and be beneficial to the flat gasket of rotation separately from each other; On flap, be provided with fixing flap and connect the hexagonal valve petal body of spring; Be provided with the fixedly valve head of valve pocket and spool in the end of bolt sleeve.
The utility model is further characterized in that the elastic force that acts on the spring on the spool is less than the elastic force that acts on the flap upper spring; Valve body is a umbrella, and the pileus that valve body forms is along covering the steam that discharges in the exhaust port; Between bolt sleeve and valve pocket, be provided with seal ring, be provided with seal ring at valve pocket and valve core chamber.
The utility model is simple in structure, compact, and is rationally distributed, utilizes its feature realization overvoltage protection and band to press the function of dismantling self-locking, even operator's misoperation can not scalded by steam because of not screwing off bolt sleeve yet.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present utility model.
1, caution cover 2, plastics valve body 3, valve pocket 4, adjusting screw
5, spring 6, flat gasket 7, bolt sleeve 8, seal ring
9, seal ring 10, seal 11, adjusting screw 12, seal ring
13, spool 14, seal ring 15, spring 16, hexagonal valve petal body
17, flap 18, steel ball 19, silently 20, exhaust port
Specific implementation of the present utility model
The utility model has the safe bonnet of self-locking device, can be arranged on the household steam cleaning device heating cavity, comprise warning and cover 1, plastics valve body 2, valve pocket 3, adjusting screw 4 and 11, spring 5 and 15, flat gasket 6, bolt sleeve 7, seal ring 8.9.10.12.14, spool 13, hexagonal valve petal body 16, flap 17, steel ball 18 and fixedly the valve head 19 of valve pocket and spool form, bolt sleeve 7 is enclosed within outside the valve pocket 3, bolt sleeve 7 is provided with exhaust port 20 with valve pocket 3 corresponding sections, spool 13 is positioned at valve pocket, and under spring action, be positioned at an end of valve pocket 3, spool one end is provided with vent, when the safe bonnet that has self-locking device is installed on the steam heating body, in the steam heating body during steam overvoltage, promote rubber flap 17, hexagonal valve petal body 16, spring 15, steam from spool through vent, exhaust port discharges automatically and enters atmosphere, realize the steam overvoltage protection, the hexagonal valve petal body is located at and is used for fixing flap on the flap and connects spring, flap be positioned at the spool vent platform along last, under the effect of spring, cover vent; When the safe bonnet that has self-locking device is installed on the steam heating body, faint vapor pressure is arranged in the steam heating body, though can not promote flap 17, but because the elastic force of spring 5 is less than spring 15, so still can promote spool 13, pressure spring 5, steel ball 18 is had on the tapered diameter outer wall along spool to slide, and make steel ball break away from bolt sleeve, this moment is because safety valve is unscrewed in operation because of carelessness, steel ball 18 slides in the valve pocket 3 under the peripheral force effect of bolt sleeve 7, cause skidding between bolt sleeve 7 and the valve pocket 3, open the purpose of whole safety valve thereby reach at the band cover 7 that can not looser a bolt under the pressure condition, avoid because of operate careless steam gush out burn the operator may.
Spool 13, flap 17, hexagonal valve petal body 16, Regulation spring 15 are housed in the mangetic core assembly, regulate bolt 11.Spool 13 bottoms one vent is no more than when setting numerical value bearing vapor pressure; covered by flap 17; flap 17 is positioned at hexagonal valve petal body 16; hexagonal lobe body 16 is subjected to the compressing of spring 15; spring 15 carries out the pressure adjustment by regulating bolt 11; the flap that is pressed on spool 13 vents when vapor pressure surpasses setting numerical value is pushed open by steam, and overvoltage steam is arranged to atmosphere by exhaust port, thereby plays the safety protection effect.
Establish spool 13, spring 5, adjusting screw 4 in the valve pocket 3, steel ball is not in the hole between sleeve wall, the diameter of steel ball snaps in the depression of bolt sleeve correspondence its part greater than the valve pocket wall thickness, bearing when spool under the situation of micro-vapor pressure, spool promotes spring 5, in valve pocket, move up and down, with the contacted steel ball 18 of spool, along with radial rolling is made in the tapered diameter variation of spool bottom.In the top injected plastic valve body 2 of valve pocket 3, can rotate by hand, valve pocket 3 tops are equipped with a caution and are covered 1, and caution covers the safety sign of sign sense of rotation or warning content.
Valve pocket 3 is housed in the bolt sleeve 7, and steel ball 18 plays the self locking safety protective action as radial rolling between bolt sleeve 7 and valve pocket 3, even operator's misoperation can not scalded by steam yet.
Seal ring 8,9 is used sealed steam between valve pocket 3 and bolt sleeve 7.Seal ring 10 is positioned at valve circle 3, and seal ring 14 is used for sealed steam between valve pocket 3 and spool 13, and seal ring 12 is used for the sealing between whole safety helmet and the vapor vessel in bolt sleeve 7 outsides.
Be provided with the flat gasket 6 that is beneficial to separately from each other rotation between bolt sleeve and plastics valve body, bolt sleeve 7 outer walls are provided with the outside thread that connects usefulness, are convenient to be connected with heating unit, and valve body is a umbrella, and steam release exhaust port is in the valve body pileus along interior and blocked by shade.
The utility model is by a simple structure, realized that obviously the utility model is the new design of a kind of novelty, progress and dark tool practicability to the adequately protecting of user.The above is specific embodiment of the utility model and the know-why used, if the equivalence of doing according to conception of the present utility model changes, when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be in scope of the present utility model, explanation hereby.

Claims (9)

1, a kind of safe bonnet that has self-locking device, comprise the plastics valve body, valve pocket, adjusting screw, two springs, bolt sleeve, seal ring, spool, flap, steel ball, it is characterized in that bolt sleeve is enclosed within outside the valve pocket, bolt sleeve and valve pocket corresponding section are provided with exhaust port, spool is positioned at valve pocket, and under spring action, be positioned at an end of valve pocket, spool one end is provided with vent, flap be positioned at the spool vent platform along last, under the effect of spring, cover vent, steel ball is not in the hole between sleeve wall, the diameter of steel ball snaps in the depression of bolt sleeve correspondence its part greater than the valve pocket wall thickness, and the other end withstands on the upper edge that spool has the convergent outer diameter.
2, the safe bonnet that has self-locking device according to claim 1, the elastic force that it is characterized in that the spring on the spool is less than the elastic force that acts on the flap upper spring.
3, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that being provided with the flat gasket that is beneficial to separately from each other rotation between bolt sleeve and plastics valve body.
4, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that being provided with fixing flap and connects the hexagonal valve petal body of spring on flap.
5, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that being provided with in the end of bolt sleeve the fixedly valve head of valve pocket and spool.
6, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that valve body is a umbrella, and the pileus that valve body forms is along covering the steam that discharges in the exhaust port.
7, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that being provided with seal ring between bolt sleeve and valve pocket, is provided with seal ring at valve pocket and valve core chamber.
8, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that the upper center of plastics valve body has the caution lid that can identify placement direction or warning content.
9, the safe bonnet that has self-locking device according to claim 1 and 2 is characterized in that the bolt sleeve outer wall is provided with the outside thread that connects usefulness.
CN 200420000333 2004-01-07 2004-01-07 Safety valve cap with self-locking device CN2697416Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420000333 CN2697416Y (en) 2004-01-07 2004-01-07 Safety valve cap with self-locking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420000333 CN2697416Y (en) 2004-01-07 2004-01-07 Safety valve cap with self-locking device

Publications (1)

Publication Number Publication Date
CN2697416Y true CN2697416Y (en) 2005-05-04

Family

ID=34766971

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420000333 CN2697416Y (en) 2004-01-07 2004-01-07 Safety valve cap with self-locking device

Country Status (1)

Country Link
CN (1) CN2697416Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103989402A (en) * 2014-05-16 2014-08-20 绍兴市吉柏尼机电有限公司 Novel detachable electric pressure cooker pressure-limiting valve structure
CN106015668A (en) * 2016-05-31 2016-10-12 柳州柳工挖掘机有限公司 Proportional unloading valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103989402A (en) * 2014-05-16 2014-08-20 绍兴市吉柏尼机电有限公司 Novel detachable electric pressure cooker pressure-limiting valve structure
CN106015668A (en) * 2016-05-31 2016-10-12 柳州柳工挖掘机有限公司 Proportional unloading valve
CN106015668B (en) * 2016-05-31 2018-09-18 柳州柳工挖掘机有限公司 A kind of ratio unloading valve

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CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee