CN204328104U - Automatic decompression valve is taken out in air defense - Google Patents
Automatic decompression valve is taken out in air defense Download PDFInfo
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- CN204328104U CN204328104U CN201420710936.9U CN201420710936U CN204328104U CN 204328104 U CN204328104 U CN 204328104U CN 201420710936 U CN201420710936 U CN 201420710936U CN 204328104 U CN204328104 U CN 204328104U
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Abstract
The utility model relates to a kind of air defense and takes out automatic decompression valve, comprises the valve body with water-inlet cavity, water chamber, pressure regulating cavity and refluxing chamber; Water chamber is communicated with water-inlet cavity by osculum, and being provided with in water chamber can shutoff or open the nonreturn valve core of osculum; Pressure regulating cavity is communicated with water chamber by relief hole, and being provided with in pressure regulating cavity can shutoff or open the pressure releasing valve core of relief hole; Refluxing chamber is communicated with pressure regulating cavity; It is characterized in that: water-inlet cavity is communicated with refluxing chamber by exhaust port, be provided with in water-inlet cavity and energy shutoff or the exhaust plug opening exhaust port, the front portion of exhaust plug holds the outlet valve supported spring that elastic force is less than the elastic force of one-way valve Compress Spring, thus exhaust plug is had remain the trend opening exhaust port.Exhaust plug is only opened under exhaust condition, and in other operating modes, exhaust plug remains closedown under hydraulic pressure, and therefore high pressure water can not be discharged from exhaust port completely, without water loss, does not also have the pressure loss.
Description
Technical field
The utility model relates to a kind of automatic valve in use for water supply apparatus of coffee maker, particularly relates to the adjustable air defense of a kind of backwater and takes out automatic decompression valve.
Background technique
In order to accelerate the time of brewing coffee, to use thinner coffee powder, obtain best extraction ability, Italian, just in the process of brewing coffee, utilizes pumping (Pump) to apply pressure to hot water, by the hot water of these band pressure, on average push and fill in the filter of coffee, so just can the brewing time is reduced within 30 seconds, even ten seconds, to accelerate the process extracted, obtain higher extraction ability.
Pumping formula coffee machine, is generally made up of water tank, water pump, heating boiler, brewing system.Boil the boiler after coffee to be bound to residual a certain amount of water, hot water boiling forms vapor pressure, and hot water return can be made in water pump, and hot water return can damage water pump to water pump, general meeting can fill one group of anti-backflow of one-way valve after water pump, or specialized designs anti-backflow of system.In process of making coffee, water tank does not have water, and at this moment air can enter water pump.Enter the water pump after air, water pump power can be made to disappear power, at this moment need to discharge air.And have one-way valve air to discharge nowhere.At this moment just define sky to take out, long sky is taken out and can be burnt water pump.
Take out for preventing sky, one patent No. is the Chinese invention patent " automatic valve in use for water supply apparatus of coffee maker " of ZL200610154657.9 (notification number is CN100487293C), and the patent No. is the Chinese utility model patent " the adjustable coffee machine valve arrangement of backwater " of ZL201220143925.8 (notification number is CN202604578U), they all disclose a kind of automatic valve in use for water supply apparatus of coffee maker, have and can simplify the advantage that coffee machine water supply installation structure, pressure adjustable scope are wide, can adapt to various different size pressure water pump and can effectively prevent water pump sky from taking out.Be particularly suitable for pumping formula coffee machine.
The valve be vented is controlled in aforementioned patent, all the time be in closed condition, the preformed groove of exhaust then by offering at spool of valve, realizes air-discharging by preformed groove, the outlet valve of the flexible glue material of this fluting, by the external force such as spring, screw thread squeezing action, controls extraction flow to regulate flexible glue well width.There is following defect in this coffee machine control valve:
1, no matter existing exhaust plug is namely in normal working or exhaust condition, is in exhaust condition all the time, has the situation of the pressure loss, and defect of leaking all the time.
2, by vernier control circling water flow rate, or structure reserves some gap control flows, requires high to control valve controlled.If valve exhaust gap is little, air row do not go out, and the long-time sky of water pump can be made to take out, cause water pump to burn out.If the exhaust clearance of spool is large, water is also discharged from exhaust, the cycle of making coffee elongated, the pressure loss can be made to cause coffee deleterious, to discharge the water yield uncontrollable, and impact is made coffee the water yield of process.
3, existing exhaust plug adopts the mode preformed grooves such as extruding, the long-time destabilizing factors such as there is distortion that uses, thus affects backwater amount, and backwater amount can increase gradually, causes waste, affects whole coffee machine and uses.
4, existing exhaust plug is in order to control accuracy, also high to part manufacture requirements, thus increases the manufacture cost of enterprise.
In sum, existing automatic valve in use for water supply apparatus of coffee maker also can be further improved.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of compact structure for above-mentioned prior art present situation, is quick on the draw and accurately can controls the air defense be vented with backwater to take out automatic decompression valve.
The utility model solves the problems of the technologies described above adopted technological scheme: automatic decompression valve is taken out in a kind of air defense, comprises valve body, has water-inlet cavity, water chamber, pressure regulating cavity and refluxing chamber in valve body; Water chamber is communicated with water-inlet cavity by the osculum be opened on water-inlet cavity sidewall, being provided with in water chamber can shutoff or open the nonreturn valve core of osculum, the rear portion of nonreturn valve core has held one-way valve Compress Spring, thus makes nonreturn valve core have the trend sealing osculum all the time; Pressure regulating cavity is communicated with water chamber by the relief hole be opened on water chamber sidewall, being provided with in pressure regulating cavity can shutoff or open the pressure releasing valve core of relief hole, the rear portion of pressure releasing valve core holds the Decompression valves Compress Spring that elastic force is greater than the elastic force of one-way valve Compress Spring, thus makes pressure releasing valve core have the trend sealing relief hole all the time; Refluxing chamber is communicated with pressure regulating cavity; It is characterized in that: described water-inlet cavity is communicated with described refluxing chamber by the exhaust port being located at water-inlet cavity end, be provided with in water-inlet cavity and energy shutoff or the exhaust plug opening exhaust port, the front portion of exhaust plug holds the outlet valve supported spring that elastic force is less than the elastic force of one-way valve Compress Spring, thus exhaust plug is had remain the trend opening exhaust port.
Above-mentioned water-inlet cavity internal fixtion has valve core case, seal ring is provided with between the periphery of valve core case and water-inlet cavity inwall, the inner of described refluxing chamber has the perforation be communicated with water-inlet cavity, the inner of valve core case is plugged in this perforation, described exhaust port is arranged in valve core case, the outer end of valve core case has two and stretches out and spaced link arm, the head of described exhaust plug has the guiding groove matched with link arm, guiding groove button on the connecting arm and can Relative sliding, the afterbody of exhaust plug has the end socket portion matched with exhaust port, outlet valve supported spring to be set in end socket portion and to be supported between valve core case and the head of exhaust plug.Valve core case supply and exhaust spool, exhaust port and outlet valve supported spring provide suitable installation position, certain exhaust port also can be set directly on the wall of water-inlet cavity the inner, link arm on valve core case is to the leading role of exhaust plug Constrained, prevent exhaust plug from offseting, guarantee exhaust plug energy effective sealing exhaust port, arrange valve core case in addition outlet valve integrally first have been assembled in outside, then be inserted in water cavity, simplify assembling mode.
Also be fixed with spool plug in above-mentioned water-inlet cavity, be provided with intake tunnel in spool plug, the link arm of described valve core case is supported on the tail end of this spool plug, the head contact of spool plug and exhaust plug.Valve core case, to the effect of valve core case Constrained, constrains in water-inlet cavity by spool plug, and simultaneously due to the head contact of spool plug and exhaust plug, such high pressure water first can act on exhaust plug, guarantees that exhaust plug is first closed.
The tail seal of above-mentioned pressure regulating cavity is bolted with voltage regulation screw, and the rear end of Decompression valves Compress Spring is bearing on this voltage regulation screw.By regulating the elastic force of voltage regulation screw adjusting pressure release valve Compress Spring, thus adapt to various different size pressure water pump, and pressure adjustable scope is large, is convenient to safety relief, boiler pressure can be avoided too high and set off an explosion.
The tail seal of above-mentioned water chamber is connected with titting water outlet; Setting out water pipe adapter facilitates water chamber to be communicated with the boiler in coffee machine.Described titting water outlet is sealedly connected on the water chamber afterbody of described valve body in the mode that can rotate relative to described water chamber.The convenient connection of coffee machine internal duct and the utilization in space.
The afterbody of above-mentioned water chamber is stepped shape expanded bore, and therefore on the outer side wall of described water chamber, be formed with outer shoulder, the head of described titting water outlet is in the stepped shape suitable with this stepped shape expanded bore, described titting water outlet inserting is at described water chamber afterbody and the interface of the two is provided with seal ring, the outside of titting water outlet also forms buckle, and buckle snaps onto on the outer shoulder of described water chamber outer side wall.It is the concrete Placement of titting water outlet.
Due to the structural feature of product, and the principle of Design of Dies, be not suitable for carrying out at valve inner design of loosing core, therefore inconveniently directly passage is set at valve inner refluxing chamber is communicated with pressure regulating cavity, for solving this technical barrier, we have cavity in the exterior edge face of above-mentioned valve body, the bottom surface of cavity is provided with annular groove, the side of annular groove groove floor has the first hole communicated with described pressure regulating cavity, the opposite side of annular groove groove floor has the second hole communicated with described refluxing chamber, and the opening of described cavity is provided with end bracket enclosed.
Above-mentioned end cap is fixed by screws on cavity, and between end cap and cavity, be also provided with the sealing gasket that profile and cavity opening match.End cap is fixed by screws on cavity has advantage easy for installation, arranges sealing gasket in addition and can strengthen sealing between end cap and cavity.
Above-mentioned refluxing chamber has horizontal runner and vertical outlet passage, the head of outlet passage is by being opened in perforation on runner sidewall and flow passage, the opening of runner afterbody is provided with plug sealing, the tail seal of outlet passage is connected with reflux tube joint, and described first hole communicates with described runner; Arranging reflux tube joint facilitates water chamber to be communicated with the boiler in coffee machine, and this refluxing chamber structure is convenient to shaping in addition, and conveniently arranges reflux tube joint.Described reflux tube joint is sealedly connected on the afterbody of described outlet passage in the mode that can rotate relative to described outlet passage.The convenient connection of coffee machine internal duct and the utilization in space.
The afterbody of above-mentioned outlet passage is stepped shape expanded bore, and therefore on the outer side wall of described outlet passage, be formed with outer shoulder, the head of described reflux tube joint is in the stepped shape suitable with this stepped shape expanded bore, described reflux tube joint inserting is at described outlet passage afterbody and the interface of the two is provided with seal ring, the outside of described reflux tube joint also forms buckle, and buckle snaps onto on the outer shoulder of described outlet passage outer side wall.
Compared with prior art, the utility model has the advantage of: the exhaust plug in this Decompression valves is only opened under exhaust condition, and in other operating modes, exhaust plug remains closedown under hydraulic pressure, therefore high pressure water can not be discharged from exhaust port completely, without water loss, also do not have the pressure loss, under sky takes out state, high temperature pressure water is not now had to enter water-inlet cavity, exhaust plug opens exhaust port completely under the effect of outlet valve supported spring, air is drained into refluxing chamber via exhaust port and final discharge, air is got rid of smooth and easy, after air is drained, high pressure water enters water-inlet cavity, exhaust plug is subject to the elastic force that hydraulic pressure is greater than outlet valve supported spring, exhaust plug closes exhaust port under hydraulic pressure, in complete sealing state, exhaust plug is active in one's movements, precisely can control exhaust, and be exhausted without the need to arranging groove on exhaust plug, simplify the manufacturing process of outlet valve.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the sectional view (normal operating condition) of the utility model embodiment;
Fig. 3 is the sectional view (empty exhaust state) of the utility model embodiment;
Fig. 4 is the sectional view (safety relief state) of the utility model embodiment;
Fig. 5 is the three-dimensional echelon sectional view of the utility model embodiment;
Fig. 6 is the three-dimensional exploded view of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in figs. 1 to 6, be a preferred embodiment of the present utility model.
Automatic decompression valve is taken out in a kind of air defense, comprises valve body 1, has water-inlet cavity 11, water chamber 12, pressure regulating cavity 13 and refluxing chamber 14 in valve body.
Water chamber 12 is communicated with water-inlet cavity 11 by the osculum 111 be opened on water-inlet cavity sidewall, being provided with in water chamber 12 can shutoff or open the nonreturn valve core 2 of osculum 111, the rear portion of nonreturn valve core 2 has held one-way valve Compress Spring 21, thus makes nonreturn valve core 2 have the trend sealing osculum 111 all the time.
The tail seal of water chamber 12 is connected with titting water outlet 17; Titting water outlet 17 is sealedly connected on water chamber 12 afterbody of valve body in the mode that can rotate relative to water chamber 12.Namely be stepped shape expanded bore at the afterbody of water chamber 12, and therefore on the outer side wall of described water chamber 12, be formed with outer shoulder 122, the head of titting water outlet 17 is in the stepped shape suitable with this stepped shape expanded bore, titting water outlet 17 inserting is at described water chamber 12 afterbody and the interface of the two is provided with seal ring 171, the outside of titting water outlet 17 also forms buckle 172, and buckle 172 snaps onto on the outer shoulder 122 of water chamber 12 outer side wall.
The head of pressure regulating cavity 13 is communicated with water chamber 12 by the relief hole 121 be opened on water chamber sidewall, being provided with in pressure regulating cavity 13 can shutoff or open the pressure releasing valve core 3 of relief hole 121, the rear portion of pressure releasing valve core 3 holds the Decompression valves Compress Spring 31 that elastic force is greater than the elastic force of one-way valve Compress Spring 21, thus makes pressure releasing valve core 3 have the trend sealing relief hole 121 all the time; The tail seal of pressure regulating cavity 13 is bolted with voltage regulation screw 4, and the rear end of Decompression valves Compress Spring 31 is bearing on this voltage regulation screw 4.
Refluxing chamber 14 is communicated with pressure regulating cavity 13; Due to the structural feature of product, and the principle of Design of Dies, be not suitable for carrying out in valve body 1 inside design of loosing core, therefore inconveniently directly passage is set in valve body 1 inside refluxing chamber 14 is communicated with pressure regulating cavity 13, for solving this technical barrier, in the exterior edge face of valve body 1, there is cavity 16, the bottom surface of this cavity is provided with annular groove 16, the side of annular groove groove 16 bottom surface has the first hole 161 communicated with pressure regulating cavity 13, the opposite side of annular groove groove 16 bottom surface has the second hole 162 communicated with refluxing chamber 14, and the opening of cavity is provided with end cap 8 and seals.End cap 8 is fixed on cavity by screw 81, and between end cap 8 and cavity 16, be also provided with the sealing gasket 82 that profile and cavity 16 opening match.
Refluxing chamber 14 has horizontal runner 14a and vertical outlet passage 14b, the head of outlet passage 14b is communicated with runner 14a by the perforation 14c be opened on runner 14a sidewall, the opening of runner 14a afterbody is provided with plug 9 and seals, plug 9 in the present embodiment is integrated part with end cap 7, the tail seal of outlet passage 14b is connected with reflux tube joint 18, and the first hole 462 communicates with runner 14a.
Reflux tube joint 18 is sealedly connected on the afterbody of outlet passage 14b in the mode that can rotate relative to described outlet passage 14b.The afterbody of outlet passage 14b is stepped shape expanded bore, and therefore on the outer side wall of outlet passage 14b, be formed with outer shoulder 14d, the head of reflux tube joint 18 is in the stepped shape suitable with this stepped shape expanded bore, reflux tube joint 18 inserting is at outlet passage 14b afterbody and the interface of the two is provided with seal ring 181, the outside of reflux tube joint 18 also forms buckle 182, and buckle 182 snaps onto on the outer shoulder 14d of outlet passage 14b outer side wall.
Water-inlet cavity 11 is communicated with refluxing chamber 14 by the exhaust port 61 being located at water-inlet cavity 11 end, be provided with in water-inlet cavity 11 and energy shutoff or the exhaust plug 5 opening exhaust port 112, the front portion of exhaust plug 5 holds the outlet valve supported spring 51 that elastic force is less than the elastic force of one-way valve Compress Spring 21, thus makes exhaust plug 5 have the trend remaining and open exhaust port 112.
Water-inlet cavity 11 internal fixtion has valve core case 6, seal ring 10 is provided with between the periphery of valve core case 6 and water-inlet cavity 11 inwall, the inner of refluxing chamber 14 has the perforation 141 be communicated with water-inlet cavity 11, the inner of valve core case 6 is plugged in this perforation 141, exhaust port 61 is arranged in valve core case 6, the outer end of valve core case 6 has two and stretches out and spaced link arm 62, the head of exhaust plug 5 has the guiding groove 52 matched with link arm 62, guiding groove 52 to be buckled on link arm 62 and can Relative sliding, the afterbody of exhaust plug 5 has the end socket portion 53 matched with exhaust port 61, outlet valve supported spring 51 to be set in end socket portion 53 and to be supported between the head of valve core case 6 and exhaust plug 5.
Also be fixed with spool plug 7 in water-inlet cavity 11, be provided with intake tunnel 71 in spool plug 7, the link arm 62 of valve core case 6 is supported on the tail end of this spool plug 7.
Working procedure of the present utility model and principle as follows:
Before using, water-inlet cavity 11 is directly connected with the water pipe screw thread of water pump, water chamber 12 is connected with boiler by titting water outlet 17, backwater cavity 12 is communicated with recovery tank by returning pipe joint 18.
The normal using process of water pump: as shown in Figure 2, high pressure water is introduced into water-inlet cavity 11, under the pressure effect of high pressure water, exhaust plug 5 is subject to the elastic force that hydraulic pressure is greater than outlet valve supported spring 51, exhaust plug 5 closes exhaust port 61 under hydraulic pressure, in complete sealing state, high pressure water remakes for nonreturn valve core 2, nonreturn valve core 2 is subject to the elastic force that hydraulic pressure is greater than one-way valve Compress Spring 21, nonreturn valve core 2 is backed down, high pressure water enters water chamber 12 from water-inlet cavity 11 via osculum 111, finally by by titting water outlet 17 discharged to boiler.
Water pump sky is pumped through journey: as shown in Figure 3, water pump initial start-up or when restarting after having stopped a period of time, if have air can produce sky in the pump housing take out phenomenon, when water pump sky is taken out, pressure is not had in water-inlet cavity 11, exhaust plug 5 in water-inlet cavity 11 opens exhaust port 61 under outlet valve supported spring 51 acts on, simultaneously, nonreturn valve core 2 is closed condition under one-way valve Compress Spring 21 acts on, namely water-inlet cavity 11 and water chamber 12 are blocked, air in water pump enters in refluxing chamber 14 through exhaust port 61, finally by by returning pipe joint 18 by air discharged to recovery tank, air is discharged smoothly.After air is drained, water pump is in normal using process.
Decompression protection process: as shown in Figure 4; pipeline of coffee machine is abnormal; form high pressure; when the current of high pressure or the pressure of air pressure are greater than the elastic force of Decompression valves Compress Spring 31; pressure releasing valve core 3 can be backed down; the current of high pressure or air pressure can via behind pressure regulating cavity 13, first hole 162, annular groove groove 161, second hole 163 discharged to refluxing chamber 14, finally by by returning pipe joint 18 by high-pressure water flow or air pressure discharged to recovery tank, pressure release completes.
Although more than describe in detail the preferred embodiments of the present invention, should be expressly understood that, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automatic decompression valve is taken out in air defense, comprises
Valve body (1), has water-inlet cavity (11), water chamber (12), pressure regulating cavity (13) and refluxing chamber (14) in valve body;
Water chamber (12) is communicated with water-inlet cavity (11) by the osculum (111) be opened on water-inlet cavity sidewall, being provided with in water chamber (12) can shutoff or open the nonreturn valve core (2) of osculum (111), the rear portion of nonreturn valve core (2) has held one-way valve Compress Spring (21), thus makes nonreturn valve core (2) have the trend sealing osculum (111) all the time;
Pressure regulating cavity (13) is communicated with water chamber (12) by the relief hole (121) be opened on water chamber sidewall, being provided with in pressure regulating cavity (13) can shutoff or open the pressure releasing valve core (3) of relief hole (121), the rear portion of pressure releasing valve core (3) holds the Decompression valves Compress Spring (31) that elastic force is greater than the elastic force of one-way valve Compress Spring (21), thus makes pressure releasing valve core (3) have the trend sealing relief hole (121) all the time;
Refluxing chamber (14) is communicated with pressure regulating cavity (13);
It is characterized in that: described water-inlet cavity (11) is communicated with described refluxing chamber (14) by the exhaust port (61) being located at water-inlet cavity (11) end, be provided with in water-inlet cavity (11) and energy shutoff or the exhaust plug (5) opening exhaust port (112), the front portion of exhaust plug (5) holds the outlet valve supported spring (51) that elastic force is less than the elastic force of one-way valve Compress Spring (21), thus makes exhaust plug (5) have the trend remaining and open exhaust port (112).
2. automatic decompression valve is taken out in air defense according to claim 1, it is characterized in that: described water-inlet cavity (11) internal fixtion has valve core case (6), seal ring (10) is provided with between the periphery of valve core case (6) and water-inlet cavity (11) inwall, the inner of described refluxing chamber (14) has the perforation (141) be communicated with water-inlet cavity (11), the inner of valve core case (6) is plugged in this perforation (141), described exhaust port (61) is arranged in valve core case (6), the outer end of valve core case (6) has two and stretches out and spaced link arm (62), the head of described exhaust plug (5) has the guiding groove (52) matched with link arm (62), guiding groove (52) is buckled in link arm (62) upper also energy Relative sliding, the afterbody of exhaust plug (5) has the end socket portion (53) matched with exhaust port (61), described outlet valve supported spring (51) is set in end socket portion (53) and goes up and be supported between the head of valve core case (6) and exhaust plug (5).
3. automatic decompression valve is taken out in air defense according to claim 2, it is characterized in that: in described water-inlet cavity (11), be also fixed with spool plug (7), intake tunnel (71) is provided with in spool plug (7), the link arm (62) of described valve core case (6) is supported on the tail end of this spool plug (7), the head contact of spool plug (7) and exhaust plug (5).
4. automatic decompression valve is taken out in air defense according to claim 1, it is characterized in that: the tail seal of described pressure regulating cavity (13) is bolted with voltage regulation screw (4), the rear end of Decompression valves Compress Spring (31) is bearing on this voltage regulation screw (4).
5. automatic decompression valve is taken out in air defense according to claim 1, it is characterized in that: the tail seal of described water chamber (12) is connected with titting water outlet (17); Described titting water outlet (17) is sealedly connected on water chamber (12) afterbody of described valve body in the mode that can rotate relative to described water chamber (12).
6. automatic decompression valve is taken out in air defense according to claim 5, it is characterized in that: the afterbody of described water chamber (12) is stepped shape expanded bore, and therefore on the outer side wall of described water chamber (12), be formed with outer shoulder (122), the head of described titting water outlet (17) is in the stepped shape suitable with this stepped shape expanded bore, described titting water outlet (17) inserting is at described water chamber (12) afterbody and the interface of the two is provided with seal ring (171), the outside of described titting water outlet (17) also forms buckle (172), buckle (172) snaps onto on the outer shoulder (122) of described water chamber (12) outer side wall.
7. automatic decompression valve is taken out in the air defense according to claim arbitrary in claim 1 ~ 6, it is characterized in that: the exterior edge face of described valve body (1) has cavity, the bottom surface of this cavity is provided with annular groove (16), the side of annular groove groove (16) bottom surface has the first hole (161) communicated with described pressure regulating cavity (13), the opposite side of annular groove groove (16) bottom surface has the second hole (162) communicated with described refluxing chamber (14), and the opening of described cavity is provided with end cap (8) sealing.
8. automatic decompression valve is taken out in air defense according to claim 7, it is characterized in that: described end cap (8) is fixed on cavity by screw (81), and between end cap (8) and cavity, be also provided with the sealing gasket (82) that profile and cavity opening match.
9. automatic decompression valve is taken out in air defense according to claim 7, it is characterized in that: described refluxing chamber (14) has horizontal runner (14a) and vertical outlet passage (14b), the head of outlet passage (14b) is communicated with runner (14a) by the perforation (14c) be opened on runner (14a) sidewall, the opening of runner (14a) afterbody is provided with plug (9) sealing, the tail seal of outlet passage (14b) is connected with reflux tube joint (18), described first hole (462) communicates with described runner (14a), described reflux tube joint (18) is sealedly connected on the afterbody of described outlet passage (14b) in the mode that can rotate relative to described outlet passage (14b).
10. automatic decompression valve is taken out in air defense according to claim 9, it is characterized in that: the afterbody of described outlet passage (14b) is stepped shape expanded bore, and therefore on the outer side wall of described outlet passage (14b), be formed with outer shoulder (14d), the head of described reflux tube joint (18) is in the stepped shape suitable with this stepped shape expanded bore, described reflux tube joint (18) inserting is at described outlet passage (14b) afterbody and the interface of the two is provided with seal ring (181), the outside of described reflux tube joint (18) also forms buckle (182), buckle (182) snaps onto on the outer shoulder (14d) of described outlet passage (14b) outer side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710936.9U CN204328104U (en) | 2014-11-24 | 2014-11-24 | Automatic decompression valve is taken out in air defense |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710936.9U CN204328104U (en) | 2014-11-24 | 2014-11-24 | Automatic decompression valve is taken out in air defense |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328104U true CN204328104U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710936.9U Withdrawn - After Issue CN204328104U (en) | 2014-11-24 | 2014-11-24 | Automatic decompression valve is taken out in air defense |
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| Country | Link |
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| CN (1) | CN204328104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565462A (en) * | 2014-11-24 | 2015-04-29 | 宁波全景电器技术有限公司 | Automatic pressure relief valve for preventing empty pumping |
-
2014
- 2014-11-24 CN CN201420710936.9U patent/CN204328104U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565462A (en) * | 2014-11-24 | 2015-04-29 | 宁波全景电器技术有限公司 | Automatic pressure relief valve for preventing empty pumping |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150513 Effective date of abandoning: 20170728 |
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| AV01 | Patent right actively abandoned |