CN208837660U - A kind of relief valve - Google Patents

Abstract

The utility model discloses a kind of relief valve, including valve body, and intake antrum, water chamber, pressure-releasing chamber are equipped in the valve body, is additionally provided with discharge chamber in the valve body, the intake antrum is communicated with water chamber, discharge chamber, and the water chamber is communicated with pressure-releasing chamber；First spool, the first valve seat are set in the water chamber, and first spool is used to open/closes the channel between intake antrum and water chamber, the first spring is arranged between first spool and the first valve seat；Second spool, the second valve seat are set in the pressure-releasing chamber, and second spool is used to open/closes the channel between water chamber and pressure-releasing chamber, relief hole is arranged on second valve seat, second spring is arranged between second spool and the second valve seat；Third spool, third valve seat are set in the discharge chamber, gas vent is set on the third valve seat, the third spool is used to open/close gas vent.Relief valve is integrally formed, and structure is simple, has the function of pressure release and exhaust simultaneously.

Description

A kind of relief valve

Technical field

The utility model relates to safety valve technical fields, are to be related to a kind of relief valve more specifically.

Background technique

It is existing in the market to be related to water pump normal water supply and container using the pressure-type coffee machine majority of electromagnetism water supplying pump The problem of pressure release, in the prior art, as disclosed on 01 26th, 2011, a kind of coffee machine of application number 201020206872.0 Pressure release valve device, include valve body, valve deck, valve body is equipped with water outlet, the pressure relief opening communicated with the outside world, valve deck be equipped with into The mouth of a river is equipped with "T"-shaped pipeline be connected to water inlet, water outlet and pressure relief opening inside valve body and valve deck, in valve body equipped with The water outlet valve chamber of pipeline connection, outlet valve are intracavitary equipped with the water outlet spool being tightly connected therewith, axially displaceable water outlet spool Outer end face and valve deck inner face alternative offset cooperation, equipped with return bullet between outlet valve in-core end face and valve interior wall Spring；Water outlet spool chamber is hollow structure, interior to be equipped with seal head, hollow screw, the seal head be it is inner small and outside big ladder-like, with The cascaded surface inner wall of water outlet spool offsets cooperation, and the smaller portions of the seal head are arranged with back pressure spring, screw be discharged spool The elongated end of inner thread connection, back pressure spring offsets through screw and with screw inner wall；The adjacent water outlet side of pressure relief opening Valve body is hierarchic structure, and water outlet spool is equipped with matching cascaded surface, and pressure relief opening is located at the trip segment of water outlet spool.The dress Although setting the function of having pressure release, it cannot be guaranteed that air emptying in water pump water supply preceding pipeline, therefore water pump can not go up rapidly water, Moreover, the component of the device is more, it is unfavorable for assembling when production.

Utility model content

The purpose of this utility model is to provide a kind of relief valves, have the function of pressure release and exhaust, and structure simultaneously Simply, with overcome the deficiencies in the prior art.

The technical scheme in the invention for solving the technical problem is a kind of relief valve, including valve body, is set in the valve body There are intake antrum, water chamber, pressure-releasing chamber, discharge chamber is additionally provided in the valve body, the intake antrum is communicated with water chamber, discharge chamber, The water chamber is communicated with pressure-releasing chamber；First spool, the first valve seat are set in the water chamber, and first spool is for beating The first spring is arranged between first spool and the first valve seat in channel between opening/closing intake antrum and water chamber；It is described to let out Intracavitary setting the second spool, the second valve seat are pressed, second spool is used to open/closes logical between water chamber and pressure-releasing chamber Road is arranged relief hole on second valve seat, second spring is arranged between second spool and the second valve seat；The discharge chamber Gas vent is arranged on the third valve seat in interior setting third spool, third valve seat, and the third spool is used to open the/row of closing Stomata.

The pressure-releasing chamber, discharge chamber it is ipsilateral be arranged side by side, the valve body be equipped with water inlet, water outlet respectively with water inlet Chamber, water chamber communicate, and the valve body is equipped with valve port and communicates with pressure-releasing chamber, discharge chamber, and the valve port is in " 8 " shape.

It further include valve deck, the valve deck is adapted with valve port, and the periphery of the valve port is equipped with bulge loop, and the valve deck is equipped with Buckle, it is described to be connected on bulge loop, it is corresponded in the valve deck and is equipped with annular groove at bulge loop, sealing is set in the annular groove Part.

Valve cover cavity is equipped in the valve deck, the valve cover cavity is communicated with pressure-releasing chamber, discharge chamber, and the valve deck is equipped with and valve The excretory duct that lid chamber communicates.

First valve seat includes cylinder, and through-hole is arranged on the cylinder, and mounting jaw, institute is arranged in the outer peripheral surface of the cylinder It states mounting jaw and water chamber is interference fitted, first step is equipped in the water chamber, the end face of described mounting jaw one end is resisted against On first step.

Second valve seat is threadedly coupled with pressure-releasing chamber, and the third valve seat and discharge chamber are interference fitted, the discharge chamber Interior to be equipped with second step, the end face of third valve seat one end is resisted against on second step.

The beneficial effects of the utility model are:

The utility model provides a kind of relief valve, has the function of pressure release and exhaust simultaneously, before both having guaranteed that water pump supplies water Air empties in pipeline, and water pump can go up rapidly water, also ensures that relief valve realizes normal decompression function；The valve body of relief valve is one It is body formed, and structure is simple, the component for being included is less, easy to produce and assembling, moreover, the coffee of other relief valves of relative usage Coffee machine, reduces production cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of relief valve in the utility model.

Fig. 2 is the cross-sectional view of relief valve in the utility model.

Fig. 3 is the structural schematic diagram of valve deck in the utility model.

Fig. 4 is the structural schematic diagram of the first valve seat in the utility model.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " transverse direction ", "upper", "lower", " left side ", The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.Unless It is otherwise noted, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " should broadly understood, for example, it may be being fixedly connected.It may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Referring to Fig. 1-4, a kind of relief valve, including valve body 1, valve deck 2, valve body is interior to be equipped with intake antrum 3, water chamber 4, pressure-releasing chamber 5, discharge chamber 6, pressure-releasing chamber, discharge chamber are ipsilateral to be arranged side by side, and intake antrum is communicated with water chamber, discharge chamber, water chamber and pressure-releasing chamber It communicates.Valve body is equipped with water inlet 11, water outlet 12 is communicated with intake antrum, water chamber respectively, is equipped with valve port 13 and pressure-releasing chamber, row Air cavity communicates.Valve port is in " 8 " shape, and valve deck is adapted with valve port, and the periphery of valve port is equipped with bulge loop 14, and valve deck is equipped with buckle 21 simultaneously It is connected on bulge loop, is corresponded in valve deck and be equipped with annular groove at bulge loop, seal member 23 is set in annular groove, for sealing valve port.Valve deck It is interior equipped with the valve cover cavity 24 communicated with pressure-releasing chamber, discharge chamber, valve deck is equipped with the excretory duct 25 communicated with valve cover cavity.

First spool 41, the first valve seat 42 are set in water chamber, the first spring is set between the first spool and the first valve seat 43, the top of the first spool is against the intersection of intake antrum and water chamber, logical between intake antrum and water chamber to open/close Road.First valve seat is made of the cylinder 44 with through-hole, mounting jaw 45, mounting jaw be arranged in four sides of cylinder outer peripheral surface and with water outlet Chamber is interference fitted, and there are spaces, and liquid to be allowed to pass through between mounting jaw.First step 46 is equipped in water chamber to install for the first valve seat The end face of Shi Dingwei, mounting jaw one end are resisted against on first step.

Second spool 51, the second valve seat 52 are set in pressure-releasing chamber, second spring is set between the second spool and the second valve seat 53, the front end of the second spool is equipped with guide rod 54, and guide rod passes through the interface channel of water chamber and pressure-releasing chamber, and guide rod is equipped with sealing ring 55, to open/close the channel between intake antrum and water chamber.Second valve seat is equipped with relief hole 56 and connects with pressure-releasing chamber screw thread It connects, relief hole is communicated with excretory duct.

Third spool 61, third valve seat 62 are set in discharge chamber, third spring is set between third spool and third valve seat 63, third valve seat and discharge chamber are interference fitted, and are equipped with when second step 64 is installed for third valve seat and are positioned in discharge chamber, third valve The end face of seat one end is resisted against on second step, gas vent 65 is provided on third valve seat, gas vent is communicated with excretory duct.Third valve Core is adapted with discharge chamber, and the diameter of third spool is less than the diameter of discharge chamber, and the top of third spool corresponds to gas vent Shape is equipped with matched circular conical surface 66, which can connect with vent hole seal.

The water inlet of valve body is connect with water pump, the container connection of water outlet and coffee machine.Working principle is as follows:

When water pump is started to work, air is squeezed to valve body in pipeline, while may be with a small amount of water, third spool at this time Circular conical surface do not connect with vent hole seal, air or a small amount of water are by the gap between third spool and discharge chamber through being vented Hole is discharged by excretory duct, and the first spool and the second spool are failure to actuate.

When starting water inlet in valve body, hydraulic pressure increases so that the circular conical surface of third spool is connect with vent hole seal, simultaneously So that the first spool is mobile, water enters water chamber and flows away into container, and the second spool is failure to actuate.

Valve body is in water flowing state, and when the pressure in container is more than specified value, the second spool is mobile at this time, and water, which enters, to be let out Chamber is pressed, then is discharged through relief hole by excretory duct, to achieve the purpose that pressure release.

Relief valve provided by the utility model has the function of pressure release and exhaust simultaneously, before both having guaranteed that water pump supplies water Air empties in pipeline, and water pump can go up rapidly water, also ensures that relief valve realizes normal decompression function；The valve body of relief valve is one It is body formed, and structure is simple, the component for being included is less, easy to produce and assembling, moreover, other opposite relief valves, reduce Production cost.In addition, the relief valve can also be applied in automatically adding water insulating pot.

While there has been shown and described that the embodiments of the present invention, those skilled in the art should understand that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are limited by claim and its equivalent replacement, without changing made by creative work Into etc., it should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of relief valve, including valve body, the valve body is interior to be equipped with intake antrum, water chamber, pressure-releasing chamber, it is characterised in that: described Discharge chamber is additionally provided in valve body, the intake antrum is communicated with water chamber, discharge chamber, and the water chamber is communicated with pressure-releasing chamber；It is described First spool, the first valve seat are set in water chamber, and first spool is used to open/closes logical between intake antrum and water chamber The first spring is arranged between first spool and the first valve seat in road；Second spool, the second valve seat are set in the pressure-releasing chamber, Second spool is used to open/closes the channel between water chamber and pressure-releasing chamber, relief hole is arranged on second valve seat, institute It states and second spring is set between the second spool and the second valve seat；Third spool, third valve seat be set in the discharge chamber, described the Gas vent is set on three valve seats, the third spool is used to open/close gas vent.

2. relief valve according to claim 1, it is characterised in that: the pressure-releasing chamber, discharge chamber are ipsilateral to be arranged side by side, the valve Body is equipped with water inlet, water outlet is communicated with intake antrum, water chamber respectively, and the valve body is equipped with valve port and pressure-releasing chamber, exhaust Chamber communicates, and the valve port is in " 8 " shape.

3. relief valve according to claim 2, it is characterised in that: further include valve deck, the valve deck is adapted with valve port, described The periphery of valve port is equipped with bulge loop, and the valve deck is equipped with buckle, described to be connected on bulge loop, corresponds to bulge loop in the valve deck Place is equipped with annular groove, and seal member is arranged in the annular groove.

4. relief valve according to claim 3, it is characterised in that: be equipped with valve cover cavity in the valve deck, the valve cover cavity with let out Pressure chamber, discharge chamber communicate, and the valve deck is equipped with the excretory duct communicated with valve cover cavity.

5. relief valve according to claim 1, it is characterised in that: first valve seat includes cylinder, is arranged on the cylinder Mounting jaw is arranged in through-hole, the outer peripheral surface of the cylinder, and the mounting jaw and water chamber are interference fitted, and the is equipped in the water chamber The end face of one step, described mounting jaw one end is resisted against on first step.

6. relief valve according to claim 1, it is characterised in that: second valve seat is threadedly coupled with pressure-releasing chamber, and described Three valve seats and discharge chamber are interference fitted, and second step are equipped in the discharge chamber, the end face of third valve seat one end is resisted against On second step.