CN209294492U - Water hammer-resistant safety corner valve - Google Patents

Abstract

The utility model discloses a kind of water hammer-resistant safety corner valves, it is related to angle valve technical field, its key points of the technical solution are that: including ontology, bonnet and fuse, body interior is provided with inlet channel, valve chamber, the water outlet of successively connection, fuse is threadedly connected in valve chamber, the on-off that fuse passes through rotation control inlet channel and water outlet, bonnet is circumferentially fixed to be connected to fuse, pressure relief safety valve is threaded on ontology, and the first sealing ring is sealed between pressure relief safety valve and ontology, pressure relief safety valve connection is in inlet channel, and pressure relief safety valve is close to fuse side.If the hydraulic pressure inside inlet channel it is excessive and be higher than pressure relief safety valve preset pressure value when, pressure relief safety valve is opened, it is discharged later positioned at the part water of inlet channel via pressure relief safety valve, so that the hydraulic pressure between fuse and inlet channel reduces, to guarantee that the angle valve is not easy to damage because hydraulic pressure is excessive in use, the service life of the water hammer-resistant safety corner valve is improved to a certain extent.

Description

Water hammer-resistant safety corner valve

Technical field

The utility model relates to angle valve technical field, in particular to a kind of water hammer-resistant safety corner valve.

Background technique

Currently, the Chinese patent that notification number is CN203131072U discloses a kind of angle valve, including valve body, bonnet and valve Core, the valve inner are provided with spool chamber, water inlet flow channel and outlet passage, and water inlet flow channel and outlet passage are and spool chamber It communicates, internal screw thread is provided in the spool chamber, external screw thread compatible with internal screw thread, the spool are provided on the spool By being equipped in spool chamber for external screw thread and internal screw thread, the rotation of the bonnet drives valve core rotation simultaneously to control feed water flow The on-off in road and outlet passage.

When needing to open the angle valve, user rotates bonnet to drive valve core rotation, so that water inlet flow channel and water outlet Runner connection, water enters valve inner from water inlet flow channel and is finally discharged from outlet passage later.But in use process In, if the hydraulic pressure inside the angle valve is excessive, the angle valve can not self pressure relief so that the angle valve be easy just go out because pressure is excessive Now damage.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of water hammer-resistant safety corner valve, With when internal pressure is excessive can releasing pressure automatically so that its non-damageable advantage.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of water hammer-resistant safety angle Valve, including ontology, bonnet and fuse, the body interior are provided with valve chamber, inlet channel and water outlet, inlet channel and water outlet Road is communicated with valve chamber, and the fuse is threadedly connected in the valve chamber, and the fuse controls the inlet channel by rotation With the on-off of the water outlet, the bonnet is circumferentially fixed to be connected on the fuse and for driving the fuse rotation, institute It states and is threaded with pressure relief safety valve on ontology, the pressure relief safety valve connection is in the inlet channel, and the pressure relief safety valve Close to the fuse side.

Through the above technical solutions, controlling inlet channel by fuse when needing using the water hammer-resistant safety corner valve and going out Water channel connection, water enters body interior from inlet channel later, and is discharged from water outlet.During this, if in inlet channel The hydraulic pressure in portion it is excessive and be higher than pressure relief safety valve preset pressure value when, pressure relief safety valve open, later, positioned at the portion of inlet channel Water is divided to be discharged via pressure relief safety valve, so that the hydraulic pressure between fuse and inlet channel reduces, to guarantee the water hammer-resistant safety corner valve It is not easy to damage because hydraulic pressure is excessive in use, improve the water hammer-resistant safety corner valve to a certain extent uses the longevity Life.At the pressure value and fuse that pressure relief safety valve is measured close to fuse side, such pressure relief safety valve inside inlet channel Pressure value is close, so that the pressure release of pressure relief safety valve is more accurate, and the water hammer-resistant safety valve is not easy to damage because pressure is excessive.

Preferably, the first sealing ring is sealed between the pressure relief safety valve and the ontology.

Through the above technical solutions, the first sealing ring being set between pressure relief safety valve and ontology can be by pressure release safety Clearance seal between valve and ontology, so that the water in inlet channel is not easy to flow in the gap between pressure relief safety valve and ontology Out.

Preferably, it is provided with attachment base on the side wall of the ontology, inlet channel described in connection is offered on the attachment base Pressure releasing passages, the pressure relief safety valve is threadedly connected to the attachment base.

Through the above technical solutions, pressure relief safety valve is connected to the side wall of ontology by attachment base, so that the structure of ontology Intensity is not easy occur biggish reduction because connecting with pressure relief safety valve.

Preferably, the pressure relief safety valve protrudes from the expanding formation limit section in end of the attachment base, and the limit Section contacts at the end of the attachment base.

Through the above technical solutions, limit section contacts at attachment base, and section and attachment base cooperation are limited to pressure relief safety valve Screw-in length limited so that pressure relief safety valve, which is less prone to, screws in the excessive situation of ontology.

Preferably, the first placing groove is provided at the top of the bonnet, first placing groove is internally provided with screw, institute Screw is stated through the bonnet and is threadedly connected to the fuse, and the screw is described for bonnet compression to be connected to Fuse.

Through the above technical solutions, bonnet compression is connected on fuse by screw, so that bonnet is not easily disconnected from fuse.

Preferably, the second placing groove of the first placing groove described in connection, and described second are offered at the top of the bonnet The width of rebate of placing groove is greater than the width of rebate of first placing groove, is embedded with sprue inside second placing groove, institute Sprue is stated for covering the notch of first placing groove.

Through the above technical solutions, being covered the notch of the first placing groove by sprue, it is not easy with the dust for guaranteeing extraneous It enters inside the first placing groove, and guarantees when needing to remove bonnet, it being capable of more convenient turn screw.

Preferably, be convexly equipped with casing on the inner wall of the bonnet, described sleeve pipe is socketed on the fuse, described sleeve pipe it is interior Wall is circumferentially uniformly distributed several teeth one, and the outer wall of the fuse is circumferentially evenly distributed with several teeth two, and the tooth two is engaged in The tooth one.

Through the above technical solutions, casing is sheathed on fuse, the contact area between bonnet and fuse is increased with this, is made The connection obtained between bonnet and fuse becomes more stable.Cooperation between bonnet and fuse by tooth one and tooth two carries out circumferential It is fixed, so that being not susceptible to relatively rotate between bonnet and fuse.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment, is mainly used for showing the contour structures of embodiment；

Fig. 2 is the schematic cross-sectional view of embodiment, is mainly used for showing the composition situation of embodiment；

Fig. 3 is the perspective view of the explosion of embodiment, is mainly used for showing the distribution situation of tooth one and tooth two；

Fig. 4 is the schematic cross-sectional view of pressure relief safety valve, is mainly used for showing the composition of pressure relief safety valve.

Appended drawing reference: 1, ontology；2, bonnet；3, fuse；4, valve chamber；5, inlet channel；6, water outlet；7, pressure relief safety valve； 8, the first sealing ring；9, attachment base；10, pressure releasing passages；11, section is limited；12, the first placing groove；13, screw；14, it second places Slot；15, sprue；16, casing；17, tooth one；18, tooth two；19, valve body；20, runner；201, import；202, it exports；203, it controls Chamber；21, spool；211, piston；212, sealing bar；2121, section is responded；2122, seal section；2123, guide section；213, spring Two；22, spring one；23, through-hole；24, mandril；241, linkage section；242, section is triggered；25, seal washer；26, annular groove；27, rubber Cushion rubber；28, preceding valve seat；29, rear valve base；30, limiting slot；31, limited post；32, rubber seal；33, groove；34, guide plate； 35, limbers；36, ring is contradicted；37, water hole.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of water hammer-resistant safety corner valve, as shown in Figures 1 to 4, including ontology 1, bonnet 2 and fuse 3.Inside ontology 1 It is provided with the water outlet 6 of inlet channel 5, the valve chamber 4 for installing fuse 3 and outflow of supplying water that the water supply of successively connection flows into. Fuse 3 is threadedly connected to inside valve chamber 4, and the end of fuse 3 protrudes from the outer wall of ontology 1, and fuse 3 passes through rotation control water inlet The on-off in road 5 and water outlet 6.

Integrally formed with casing 16 on the inner wall of bonnet 2, the central axis of casing 16 is overlapped with the central axis of bonnet 2, Casing 16 is socketed on fuse 3 and protrudes from the end of ontology 1, and the inner wall of casing 16 fits in the outer wall of fuse 3.Casing 16 It is circumferentially evenly distributed with several teeth 1 at inner wall, several teeth 2 18, and tooth 2 18 are circumferentially evenly distributed at the outer wall of fuse 3 It is engaged in tooth 1, tooth 2 18 cooperates bonnet 2 and fuse 3 is circumferentially fixed with tooth 1.

The first placing groove 12, and the center of the central axis of the first placing groove 12 and bonnet 2 are offered on the top of bonnet 2 Axis is overlapped.First placing groove 12 is internally provided with screw 13, and screw 13 is threadedly coupled through bonnet 2 and with fuse 3, and spiral shell The compression of bonnet 2 is connected to fuse 3 by nail 13.Second placing groove 14 coaxial with the first placing groove 12 is also provided at the top of bonnet 2, And second placing groove 14 width of rebate be greater than the first placing groove 12 width of rebate.Sprue is embedded with inside second placing groove 14 15, and sprue 15 is used to cover in the notch of the first placing groove 12.

Integrally formed with attachment base 9 on the side wall of ontology 1, and attachment base 9 is close to 3 side of fuse.At the center of attachment base 9 Pressure releasing passages 10 are offered, 10 connection of pressure releasing passages is in inlet channel 5, and the central axis upright of pressure release runner 20 is in inlet channel 5 Mandrel line.Pressure relief safety valve 7 is threaded on attachment base 9, and it is close to be sealed with first between attachment base 9 and pressure relief safety valve 7 Seal 8.Pressure relief safety valve 7 protrudes from the expanding formation limit section 11 in end of attachment base 9, and limits section 11 for contradicting attachment base 9 limit pressure relief safety valve 7 in turn screws in the length of ontology 1.

When hydraulic pressure inside inlet channel 5 is greater than the preset pressure value of pressure relief safety valve 7, pressure relief safety valve 7 is opened, water inlet Part water inside road 5 is discharged via pressure relief safety valve 7, so that the hydraulic pressure inside inlet channel 5 is minimized, and the water hammer-resistant is pacified Full-shape valve is not easy the case where damaging because hydraulic pressure is excessive.

Pressure relief safety valve 7 includes valve body 19, orifice shapes is equipped with inside valve body 19 as circular runner 20, and runner 20 Central axis be overlapped with the central axis of valve body 19.Runner 20 includes the import 201 of valve body 19 being flowed into for fluid, for fluid stream The control chamber 203 of outlet 202 and connection import 201 and the outlet 202 of valve body 19 out.The internal diameter of control chamber 203 be greater than into The internal diameter of mouth 201, and the inner wall of control chamber 203 and the inner wall of import 201 cooperatively form shoulder block.

Valve body 19 includes preceding valve seat 28 and rear valve base 29.Valve seat 28 before import 201 and control chamber 203 are arranged in Inside, outlet 202 are arranged on rear valve base 29.It is provided with internal screw thread at the inner wall of preceding valve seat 28, is set on the outer wall of rear valve base 29 It is equipped with external screw thread, and preceding valve seat 28 is threadedly coupled by internal screw thread with externally threaded rear valve base 29.Preceding valve seat 28 and rear valve Be sealed with seal washer 25 between seat 29, to guarantee in use, fluid valve body 19 inside be not easy from preceding valve seat 28 and Gap outflow between rear valve base 29.

Control chamber 203 is internally provided with spool 21, spring 1 and mandril 24, and spool 21, spring 1 and top Bar 24 is successively arranged along import 201 to 202 sides of outlet.

Spool 21 includes sliding the piston 211 being connected to inside control chamber 203, sliding the sealing being connected on piston 211 Bar 212, the spring 2 213 being connected between piston 211 and sealing bar 212.

Annular groove 26, and the central axis weight of the central axis of annular groove 26 and piston 211 are offered on the outer wall of piston 211 It closes.In the present embodiment, the number of annular groove 26 is two, and two annular grooves 26 are along the axial distribution of piston 211.In each annular groove 26 Portion is embedded with rubber ring 27, and the outer ring of rubber ring 27 protrudes from the notch of annular groove 26 and contradicts with the inner wall of control chamber 203. Protrude from 26 notch of annular groove rubber ring 27 can by the clearance seal between 211 outer wall of 203 inner wall of control chamber and piston so that Liquid at import 201 is not easy to flow to from the gap location between 211 outer wall of 203 inner wall of control chamber and piston from outlet 202.

Through-hole 23 is equipped at 211 center of piston, and the central axis of through-hole 23 is overlapped with the central axis of piston 211, Through-hole 23 is used for 203 connection of control chamber of 211 two sides of piston.

Piston 211 is towards opening up fluted 33 on the end of 201 side of import, groove 33 and 23 connection of through-hole, and groove 33 central axis is overlapped with the central axis of piston 211.Integrally formed with ring at the inner wall opposite with import 201 in groove 33 The conflict ring 36 of shape, the annular ring 36 that contradicts surrounds the aperture of through-hole 23 towards 201 side of import, and contradicts the outer diameter of ring 36 It is gradually reduced to 201 side of import.Groove 33 is towards being threaded with guide plate 34 at the notch of import 201, on guide plate 34 Several limbers 35 are offered, and several limbers 35 are uniformly distributed centered on 34 axis of guide plate in circumferential.Guide plate 34 The pilot hole (not indicating in figure) protruded into for sealing bar 212 is offered at center.

Sealing bar 212 includes guide section 2123, the seal section being fixedly connected sequentially from import 201 to 202 sides of outlet 2122 and response section 2121.Guide section 2123 is stretched to inside pilot hole and is slid with pilot hole and connects.Seal section 2122 Outer diameter is greater than the outer diameter of guide section 2123, and seal section 2122 is used to cover through-hole 23 towards the aperture of 201 side of import.Sealing Section 2122 away from import 201 end face on glue be equipped with rubber seal 32, seal section 2122 be slidingly sealed through-hole 23 towards into When the aperture of 201 sides of mouth, rubber seal 32 can be close by seal section 2122 and the inner wall of groove 33 towards 201 side of import Envelope.Response section 2121 is passed through from through-hole 23, and is responded section 2121 and passed through from through-hole 23 and protrude from through-hole 23 towards outlet 202 end.

One end of spring 2 213 be fixedly connected on seal section 2122 away from import 201 end face on, spring 2 213 it is another One end, which is sheathed on, to be contradicted 36 outside of ring and is fixedly connected with the inner wall of groove 33.In use, 2 213 pairs of sealing bars of spring 212 apply to be directed toward the elastic force of 201 side of import, so that seal section 2122 is pushed against on guide plate 34.

Mandril 24 includes the triggering for being threadedly connected to linkage section 241 inside valve body 19, being fixedly connected on linkage section 241 Section 242.Water hole 37 is worn on linkage section 241, water hole 37 is axially extending along linkage section 241, and water hole 37 is for joining Logical control chamber 203 and outlet 202.The number of water hole 37 is several, and several water holes 37 are with the axis of linkage section 241 Center is circumferentially uniformly distributed.Triggering section 242 is cylindrical, and triggers the central axis of section 242 and the central axis of linkage section 241 It is overlapped, triggering section 242 is convex to 201 side of import and for contradicting response section 2121.

One end of spring 1 is socketed in triggering section 242, and the inner ring of spring 1 contacts at the outer of triggering section 242 Wall, the other end of spring 1 are connected on piston 211.In use one 22 pairs of pistons 211 of spring apply be directed toward into The elastic force of 201 sides of mouth, so that piston 211 pushes against at shoulder block.

Piston 211 is towards offering the limiting slot 30 protruded into for spring 1 on the end of mandril 24, in limiting slot 30 Integrally formed with limited post 31 at the heart, limited post 31 is run through by through-hole 23, and limited post 31 is passed through from the middle part of spring 1, and limits The outer wall of position column 31 contacts at the inner ring of spring 1.

Water hammer-resistant unloads a safety valve, and specific use process is as follows: in use, the import 201 of the safety valve and water pipe are connected It connects, the liquid inside water pipe is entered under pressure inside runner 20.When the pressure that liquid applies sealing bar 212 is less than When the elastic force that 2 213 pairs of sealing bars 212 of spring apply, sealing bar 212 is unable to complete the sealing to through-hole 23, and from import 201 202 sides of outlet can be flowed to via the gap between sealing bar 212 and through-hole 23 by locating the liquid entered, and finally from outlet It is flowed out at 202.At the same time, the liquid being flowed into inside control chamber 203 by water pipe can push inside water pipe and runner 20 Air from outlet 202 be discharged, the exhaust of water pipe is completed with this.When liquid is greater than spring two to the pressure that sealing bar 212 applies When the pressure that 213 pairs of sealing bars 212 apply, sealing bar 212 seals through-hole 23, so that the liquid at import 201 can not be flow to It exports at 202.If the fluid pressure inside water pipe continues growing at this time, spool can be pushed by being located at the liquid at import 201 21 is mobile to exporting 202 sides.During mobile 202 side to outlet of spool 21, in runner 20 with water pipe communicating portion Volume increase, and fluid pressure is gradually reduced, and achievees the purpose that unload a pressure release with this.When spool 21 is moved to the end of mandril 24 When portion contradicts sealing bar 212, mandril 24 limits the movement of sealing bar 212, so that generating phase between sealing bar 212 and piston 211 To movement, and sealing bar 212 releases the sealing of through-hole 23.The liquid at import 201 is now placed in via sealing bar 212 and is led to Gap discharge between hole 23, achievees the purpose that drain pressure release with this.

The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention It encloses, the protection scope of the utility model is determined by the attached claims.

Claims (7)

1. a kind of water hammer-resistant safety corner valve, including ontology (1), bonnet (2) and fuse (3), the ontology (1) are internally provided with Valve chamber (4), inlet channel (5) and water outlet (6), inlet channel (5) are communicated with valve chamber (4) with water outlet (6), the fuse (3) it is threadedly connected in the valve chamber (4), and the fuse (3) controls the inlet channel (5) and the water outlet by rotation (6) on-off, the bonnet (2) is circumferentially fixed to be connected on the fuse (3) and is used to that the fuse (3) to be driven to rotate, It is characterized in: is threaded with pressure relief safety valve (7) on the ontology (1), pressure relief safety valve (7) connection is in the inlet channel (5), and the pressure relief safety valve (7) is close to the fuse (3) side.

2. water hammer-resistant safety corner valve according to claim 1, it is characterized in that: the pressure relief safety valve (7) and the ontology (1) the first sealing ring (8) are sealed between.

3. water hammer-resistant safety corner valve according to claim 1, it is characterized in that: the company of being provided on the side wall of the ontology (1) Joint chair (9) offers the pressure releasing passages (10) of inlet channel described in connection (5), the pressure relief safety valve (7) on the attachment base (9) It is threadedly connected to the attachment base (9).

4. water hammer-resistant safety corner valve according to claim 3, it is characterized in that: the pressure relief safety valve (7) protrude from it is described Expanding formation limit section (11) in the end of attachment base (9), and limit section (11) contacts at the end of the attachment base (9).

5. water hammer-resistant safety corner valve according to claim 1, it is characterized in that: being provided with first at the top of the bonnet (2) Placing groove (12), first placing groove (12) are internally provided with screw (13), and the screw (13) runs through the bonnet (2) simultaneously It is threadedly connected to the fuse (3), and the screw (13) is used to compress the bonnet (2) and is connected to the fuse (3).

6. water hammer-resistant safety corner valve according to claim 5, it is characterized in that: offering connection at the top of the bonnet (2) The second placing groove (14) of first placing groove (12), and the width of rebate of second placing groove (14) is greater than described first The width of rebate of placing groove (12), second placing groove (14) is internal to be embedded with sprue (15), and the sprue (15) is used for will The notch of first placing groove (12) covers.

7. water hammer-resistant safety corner valve according to claim 1, it is characterized in that: being convexly equipped with set on the inner wall of the bonnet (2) It manages (16), described sleeve pipe (16) is socketed on the fuse (3), and the inner wall of described sleeve pipe (16) is circumferentially uniformly distributed several teeth one (17), the outer wall of the fuse (3) is circumferentially evenly distributed with several teeth two (18), and the tooth two (18) is engaged in the tooth one (17)。