CN205824257U - Water check valve - Google Patents

Abstract

The utility model discloses a kind of water check valve, including valve body, spool, the installing hole inserted for spool it is provided through on described valve body, described spool extends limited location block outside installing hole, the flexure strip being fixed in installing hole by spool by elastic reaction it is removably connected with on described limited block, being provided with withstanding effect on described spool prevents spool from departing from the limiting section of installing hole along direction of insertion, its drip irrigation device is when needs dismounting spool, flexure strip is taken out from limited block, spool is not fixed by flexure strip, spool is promoted along installing hole to the direction of limiting section, spool is made to depart from installing hole, i.e. spool departs from valve body, realize the effect of valve core taking quickly.

Description

Water check valve

Technical field

This utility model relates to the control parts in a kind of fluid delivery system, more specifically, it relates to a kind of sealing Valve.

Background technology

Water check valve is in fluid system, is used for controlling the direction of fluid, pressure, the device of flow are to make pipe arrangement and equipment In liquid, gas, flow of powder or stop and controlling the device of its flow.

The Chinese patent of existing Publication No. CN201970267U, removes and installs logical by being provided with one section on valve body Pipe, is arranged on spool and removes and installs in siphunculus, dismantle, then by spool from dismounting by removing and installing siphunculus from valve body Install in siphunculus and pull down, it is possible to realize the dismounting of spool.

But, when needs dismounting spool, maintainer needs to be pulled down from valve body at the two ends removing and installing siphunculus, so After spool is taken out in removing and installing siphunculus, maintainer dismounting spool mode cumbersome.

Utility model content

The deficiency that exists for prior art, the purpose of this utility model be to provide a kind of can fast assembling-disassembling spool Water check valve.

For achieving the above object, this utility model provides following technical scheme:

A kind of water check valve, including valve body, spool, described valve body is provided through the installing hole inserted for spool, described Spool extends limited location block outside installing hole, described limited block is removably connected with and by elastic reaction, spool is fixed on peace Flexure strip in dress hole, described spool is provided with withstanding effect and prevents spool from departing from the spacing of installing hole along direction of insertion Portion.

By using technique scheme, being provided through installing hole on valve body, spool inserts installing hole, the one of spool End is outward extended with limited block along spacing hole, and limited block connects flexible, and flexure strip can be pulled down on limited block, flexure strip Can be fixed in installing hole by spool, spool is provided with limiting section, limiting section is prevented from spool and departs from installing hole, when needing During spool to be dismantled, being taken out by flexure strip from limited block, spool is not fixed by flexure strip, by spool along installing hole to spacing The direction in portion promotes so that spool departs from installing hole, i.e. spool and departs from valve body, it is achieved quickly by the effect of valve core taking.

Preferably, described limiting section includes the taper seat being arranged on spool lateral wall, and the diameter of described spool is inserted along spool The direction entering installing hole is gradually reduced.

By using technique scheme, being provided with taper seat on the lateral wall of spool, the diameter of spool is inserted along spool The direction entering installing hole is gradually reduced, owing to fitting with the lateral wall of spool in the medial wall of installing hole, i.e. and the medial wall of installing hole For the taper seat fitted with the valve element circle conical surface, due to spool away from the diameter of one end of flexure strip more than installing hole near flexure strip The diameter of side, when flexure strip has the trend pulled by spool to flexure strip direction, the taper seat of spool and installing hole Taper seat offsets, so that spool can not be pulled out in the side of flexure strip by flexure strip from mounting hole site, reaches to prevent spool Depart from the effect of installing hole；Spool is offseted by two taper seats with installing hole simultaneously, spool under the elastic reaction of flexure strip, Two taper seats can be made to be automatically positioned, the axis coinciding of two taper seats, make spool seal with the medial wall of installing hole and coordinate, Prevent water from oozing out from the gap between spool and the medial wall of installing hole, reach the effective sealing effectiveness of valve body.

Preferably, described limiting section includes the abutting plate being arranged on spool, and described spool is by abutting plate and valve body phase Support.

By using technique scheme, spool being provided with abutting plate, spool offsets with valve body by abutting plate, works as bullet Property sheet time there is the trend pulled to flexure strip direction by spool, spool offsets with valve body by abutting plate, so that elastic Spool can not be pulled out in the side of flexure strip by sheet from mounting hole site, reaches the effect preventing spool from departing from installing hole.

Preferably, described limited block includes end cap, connects the spool connection post with end cap, and described flexure strip is provided with can Connecting the opening of post lateral wall radial slippage, described flexure strip side offsets with valve body, described flexure strip opposite side and end cap Offset.

By using technique scheme, spool is axially extended with connection post, end cap outside installing hole along it, on flexure strip Being provided with opening, connecting post can radially slide along connecting post by opposed open, makes flexure strip insert or be disconnected post, flexure strip Side offsets with end cap, and opposite side offsets with valve body, when connection post relative resilient sheet is inserted in the opening of flexure strip, and bullet Property sheet by elastic reaction, make end cap pull on spool and there is the trend to the lateral movement away from limiting section, simultaneously because limit Position portion abuts with valve body, is fastened in valve body by spool, when in the opening that connection post relative resilient sheet is departed from flexure strip, and bullet Property sheet take out from spool, spool is positioned at one end of flexure strip does not has the fixing of elastic component, by spool in installing hole to spacing Plate side promotes, and limiting plate departs from valve body, is taken out by spool in valve body, it is achieved the effect of fast quick-detach spool.

Preferably, the end face that described end cap contacts with flexure strip is provided with the reinforcement of network.

By using technique scheme, when flexure strip is by elastic reaction conflict end cap, when elastic acting force is more than During the intensity of end cap, easily causing the deformation of end cap, flexure strip departs from the conflict of end cap, and spool departs from valve body, makes the spool can not Normal work, by being provided with reinforcement on end cap, reinforcement can strengthen the intensity of end cap, effectively prevents the change of end cap Shape, flexure strip is fastened on spool by end cap, makes spool be fixed in installing hole, and when being prevented effectively from spool work, spool departs from valve The situation of body, on the other hand, the reinforcement of network can increase the surface roughness of end cap, it is to avoid flexure strip is on end cap Sliding, cause flexure strip to depart from spool, thus avoid spool to depart from the fixing of flexure strip, when reaching spool work, spool will not take off Effect from valve body.

Preferably, described valve body is positioned at flexure strip the stopper slot being provided with for preventing flexure strip from rotating.

By using technique scheme, owing to spool is by rotating in installing hole, it is achieved flowing of supplying water in valve body The connection of pipeline or closedown, the rotation of spool will drive the rotation of end cap, and the rotation of end cap can cause and offset with end cap The rotation of flexure strip, flexure strip rotates between end cap and valve body, easily causes flexure strip and departs from spool, is provided with on valve body Stopper slot, stopper slot is prevented from the rotation of flexure strip, during the use that spool is long-term, flexure strip firm at stopper slot In, effectively prevent flexure strip and depart from spool, cause spool to follow the string the fixing of sheet, spool is fixing during life-time service In spacing hole, reach the effect that spool can persistently use.

Preferably, described spool is provided through can connect or the switch hole of disconnection by application valve body internal channel, described The lateral wall of spool is circumferentially provided with for the sealing ring in gap between sealed valve core and installing hole medial wall.

By using technique scheme, spool has switch hole, by spool circumferentially rotating in installing hole, open pipe Control can the connection of application valve body internal channel or disconnection, between the lateral wall and the medial wall of installing hole of spool, be provided with sealing Circle, sealing ring can gap between lateral wall and the medial wall of installing hole of sealed valve core, prevent the water in valve body from spool Lateral wall and the medial wall of installing hole between gap spill, so that valve body reaches good sealing effectiveness.

Preferably, described spool is extended with tumbler to installing hole away from the outside of flexure strip side, and described valve body sets Being equipped with boss, the sidewall of described boss coincide with the lateral wall of tumbler, and the sidewall of described boss is provided with gear groove, described turn The gear block that can be inserted into gear groove it is provided with on moving part.

By using technique scheme, spool is provided with tumbler, by controlling the rotation of tumbler, it is possible to real Existing spool rotation in installing hole, valve body is provided with boss, and the sidewall of boss is provided with gear groove, and sets on tumbler Being equipped with gear block, gear block can be inserted into gear groove, when needing accurately to control the water flow through spool, gear block is inserted shelves Position groove, makes tumbler be fixed in gear groove by gear block, and spool is circumferentially fixed in installing hole by tumbler, owing to supplying The opening that water passes through is to circumferentially rotate adjusting size by spool in installing hole, by fixed spool, makes opening of spool The opening that the water supply of hole, pass is passed through immobilizes, and reaches to control water effect of flow in switch hole.

Preferably, described tumbler lateral wall is provided with slot to make way, and described gear block is positioned at slot to make way, described slot to make way Being connected between diapire with block and have compression spring, described compression spring promotes gear block to make gear block insert in gear groove.

By using technique scheme, being provided with slot to make way on tumbler, the diapire of slot to make way is disposed with pressure Contracting spring, gear block, when needs by circumferentially fixed for spool in installing hole time, gear block is supported by compression spring by elastic reaction It is connected in gear groove, it is achieved spool circumferentially fixed, when needing the openings of sizes adjusting switch hole, promotes gear block to stepping down Move in groove so that compression spring is compressed, and gear block is compressed in slot to make way, tumbler not circumferentially fixed by gear block, rotation Dynamic tumbler, makes gear block be positioned at next gear groove, in gear block is advanced gear groove by elastic reaction by compression spring, Circumferentially rotating of tumbler band movable valve plug, it is achieved adjust the openings of sizes of switch hole, thus realize adjusting the current by spool The effect of amount.

Preferably, described gear block along the axial height of spool more than gear groove along the axial length of spool.

By using technique scheme, gear block is in the axial direction of spool, and the height of gear block is more than the length of gear groove Degree a so that part for gear block is positioned at outside gear groove, it is simple to operator control gear block and depart from gear groove, it is simple to control to turn Circumferentially rotating of moving part, it is achieved adjust the openings of sizes of switch hole, thus realize adjusting the effect of the discharge by spool.

In sum, this utility model has the advantages that

1, flexure strip takes out from limited block, is promoted along installing hole to the direction of limiting section by spool, it is achieved quickly will The effect of valve core taking；

2, the effect preventing spool from departing from installing hole is reached；

3, between the lateral wall and the medial wall of installing hole of spool, it is provided with sealing ring, so that valve body reaches good Sealing effectiveness.

Accompanying drawing explanation

Fig. 1 is embodiment one structural representation；

Fig. 2 is embodiment one exploded perspective view；

Fig. 3 is embodiment one sectional view；

Fig. 4 is the enlarged drawing of part A in Fig. 3；

Fig. 5 is embodiment two structural representation.

In figure: 1, valve body；11, installing hole；12, stopper slot；13, boss；14, gear groove；2, spool；21, taper seat； 22, plate is abutted；23, switch hole；24, sealing ring；25, tumbler；251, turning handle；252, slot to make way；253, compression spring； 254, gear block；26, post is connected；27, end cap；271, reinforcement；3, flexure strip；31, opening.

Detailed description of the invention

Below in conjunction with the accompanying drawings and embodiment, this utility model is described in detail.

Embodiment one:

A kind of water check valve, with reference to Fig. 1, Fig. 3 and Fig. 4, it includes valve body 1 and spool 2, has the logical of flowing of supplying water in spool 2 Road, valve body 1 is radially provided through installing hole 11, spool 2 is provided with limiting section, and limiting section can abut valve body 1, anti- Only spool 2 departs from installing hole 11 from spool 2 direction of insertion, the taper seat 21 of limiting section preferred spool 2 lateral wall, installing hole 11 The taper seat 21 of medial wall and spool 2 is fitted, and spool 2 is radially provided with switch hole 23, spool 2 in installing hole 11 axially Rotate, make the port medial wall rotation along valve body 1 of switch hole 23, when the two-port of switch hole 23 is complete and the passage of valve body 1 During connection, the opening 31 of switch hole 23 is maximum, the maximum flow of water, when the medial wall phase of two-port and the valve body 1 of switch hole 23 To time, water cannot pass through switch hole 23, it is achieved spool 2 is by the tube wall of valve body 1 passage, when switch hole 23 is positioned at the inner side of valve body 1 During the transition position of wall and passage, by rotary spool 2, the opening 31 of switch hole 23 is made to become big or diminish, it is achieved to control to pass through valve The size of the discharge of core 2.

With reference to Fig. 2, Fig. 3 and Fig. 4, it is quadrangular structure that valve body 1 is positioned at the outline at installing hole 11, and spool 2 is along its axle To down-set limited location block, limited block is positioned at outside installing hole 11, and what limited block was concrete includes the connection post 26 of cylinder, cylinder The end cap 27 of shape, connects the diameter diameter less than end cap 27 of post 26, and connection post 26, end cap 27 axially set gradually along spool 2, End cap 27, connection post 26, spool 2 concentric, the preferred latch plate of flexure strip 3, and along the axial bending of spool 2, latch plate is square Shape structure, being positioned at of latch plate shorter is inwardly provided with opening 31, and the both sides of opening 31 are parallel, the both sides of opening 31 Distance, equal to the diameter of connection post 26, connects in the opening 31 that post 26 can insert latch plate relatively, connects post 26 and radially exists Slide in the opening 31 of latch plate, the middle part bending of spring leaf, make the middle part of latch plate offset with end cap 27, the two ends of latch plate Offseting with valve body 1, be provided with stopper slot 12 on the lateral wall of valve body 1, stopper slot 12 is arranged along the length direction of valve body 1, limit Position groove 12 is only positioned at the sidewall of valve body 1 both sides radially, and stopper slot 12 does not has sidewall along valve body 1 length direction, stopper slot The smooth setting of diapire of 12, it is simple to latch plate along valve body 1 length direction insert stopper slot 12, end cap 27 contact with latch plate one Face is provided with reinforcement 271, and reinforcement 271 is network.

With reference to Fig. 3 and Fig. 4, being axially provided with groove on the circumferential side wall of spool 2, sealing ring 24 is placed in groove. Spool 2 is offseted by the medial wall of sealing ring 24 with installing hole 11, it is achieved the sealing between spool 2 and installing hole 11 medial wall.

With reference to Fig. 2, Fig. 3 and Fig. 4, spool 2 axially arranged has tumbler 25 along it, and the lateral wall of tumbler 25 is provided with Slot to make way 252, slot to make way 252 is axially arranged along spool 2, and the diapire of slot to make way 252 is outwards disposed with compression spring 253 and in slot to make way 252 slide gear block 254, compression spring 253 one end is fixed on the diapire of slot to make way 252, separately One end is fixed on gear block 254, is provided with boss 13 on the lateral wall of valve body 1, and boss 13 is arranged on the one of installing hole 11 Side, boss 13 has an inside circumference wall, and the inside circumference wall of boss 13 is provided with at least two gear groove 14, gear block 254 are pushed in gear groove 14 by the elastic reactions of compression spring 253 by compression spring 253, it is achieved tumbler 25 and spool 2 Circumferentially fixed, the height of gear block 254 projection protruding upward, it is simple to operator press gear block 254, the circumference of tumbler 25 Turning handle 251 it is additionally provided with, it is simple to operator's rotary motion part 25 on sidewall.

Work process: with reference to Fig. 2, Fig. 3 and Fig. 4, when needs dismounting spool 2, by latch plate along the sidewall of stopper slot 12 Slide, be simultaneously connected with relative the moving in the opening 31 of latch plate of post 26, make latch plate depart from the abutting with end cap 27, by bullet Spring plank takes out, and now spool 2 is positioned at one end of end cap 27 and loses the fixing of latch plate, is pushed away to the side of tumbler 25 by spool 2 Dynamic, the dismounting of spool 2 can be realized.

With reference to Fig. 1, Fig. 3 and Fig. 4, when spool 2 installed by needs, installing hole is inserted in one end that spool 2 is positioned at end cap 27 In the port being relatively large in diameter of 11, spool 2 is along the axial promotion of installing hole 11, when gear block 254 moves at boss 13, Gear block 254 is placed in gear groove 14, and continues to press on spool 2, when the taper seat 21 of spool 2 fits installing hole 11, The axial location of spool 2 is fixing in installing hole 11, now connects post 26 and protrudes valve body 1, by the opening of latch plate with end cap 27 31 insert to connecting post 26, connect post 26 and relatively slide with opening 31, and the middle part of final latch plate is connected on end cap 27, latch plate Two ends be connected on the diapire of limiting plate, it is achieved the installation of spool 2.

With reference to Fig. 2, Fig. 3 and Fig. 4, spool 2 during normal use, the flow of current in needing to adjust valve body 1 Time, gear block 254 is pressed in slot to make way 252, compression spring 253 is compressed so that gear block 254 is pressed into slot to make way In 252, now gear block 254 departs from gear groove 14, tumbler 25 not circumferentially fixed by gear block 254, the most hand-held rotation Handle 251 rotary motion part 25, during gear block 254 turns to next gear groove 14, spool 2 is together with tumbler 25 Circumferentially rotating, the switch hole 23 of spool 2 is different from the contact of the medial wall of valve body 1 so that the opening 31 of switch hole 23 become big or Diminishing, it is achieved gear block 254, through the flow of spool 2, is unclamped by regulation water, compression spring 253 is due to resilient-elasticity recovery, pressure Contracting spring 253 promotes gear block 254 to insert in gear groove 14, it is to avoid in use, spool 2 is in installing hole 11 for valve body 1 Rotate so that by the change of the discharge of spool 2.

Embodiment two:

A kind of water check valve, the difference with embodiment one is as follows:

With reference to Fig. 5, the limiting section that the difference from embodiment one is in the present embodiment is different, and the limiting section of the present embodiment is Abutting plate 22, abutting plate 22 is one-body molded with tumbler 25, and the diameter abutting plate 22 is more than installing hole 11, and installing hole 11 is cylinder Shape structure, spool 2 offsets with valve body 1 by abutting plate 22.

Work process: with reference to Fig. 5, the difference with embodiment one is, when installing spool 2, cylindrical spool 2 inserts Installing hole 11, during promoting, abuts plate 22 and contacts with the lateral wall of valve body 1 on spool 2 in installing hole 11, so that Spool 2 being axially accurately positioned in installing hole 11, now connects post 26 and protrudes valve body 1, by the opening of latch plate with end cap 27 31 insert to connecting post 26, connect post 26 and relatively slide with opening 31, and the middle part of final latch plate is connected on end cap 27, latch plate Two ends be connected on the diapire of limiting plate, it is achieved the installation of spool 2.

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to Go out, for those skilled in the art, without departing from the some improvement under this utility model principle premise and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (10)

1. a water check valve, including valve body (1), spool (2), is characterized in that: be provided through on described valve body (1) for spool (2) installing hole (11) inserted, described spool (2) extends outward limited location block to installing hole (11), detachable on described limited block Connecting and have the flexure strip (3) being fixed in installing hole (11) by spool (2) by elastic reaction, described spool is provided with on (2) Prevent spool (2) from departing from the limiting section of installing hole (11) along direction of insertion by withstanding effect.

Water check valve the most according to claim 1, is characterized in that: described limiting section includes being arranged on spool (2) lateral wall Taper seat (21), the direction that the diameter of described spool (2) inserts installing hole (11) along spool (2) is gradually reduced.

Water check valve the most according to claim 1, is characterized in that: described limiting section includes the abutting being arranged on spool (2) Plate (22), described spool (2) offsets with valve body (1) by abutting plate (22).

Water check valve the most according to claim 1, is characterized in that: described limited block include end cap (27), connect spool (2) with The connection post (26) of end cap (27), described flexure strip (3) is provided with can be at the opening connecting post (26) lateral wall radial slippage (31), described flexure strip (3) side offsets with valve body (1), and described flexure strip (3) opposite side offsets with end cap (27).

Water check valve the most according to claim 4, is characterized in that: the end face that described end cap (27) contacts with flexure strip (3) sets It is equipped with the reinforcement (271) of network.

Water check valve the most according to claim 4, is characterized in that: described valve body (1) be positioned at flexure strip (3) place be provided with for Prevent the stopper slot (12) that flexure strip (3) rotates.

Water check valve the most according to claim 1, is characterized in that: being provided through on described spool (2) can application valve body (1) internal channel connection or the switch hole (23) of disconnection, the lateral wall of described spool (2) is circumferentially provided with for sealed valve core (2) And the sealing ring (24) in gap between installing hole (11) medial wall.

Water check valve the most according to claim 1, is characterized in that: described spool (2) to installing hole (11) away from flexure strip (3) The outside of side is extended with tumbler (25), and described valve body (1) is provided with boss (13), the sidewall of described boss (13) with turn The lateral wall of moving part (25) coincide, and the sidewall of described boss (13) is provided with gear groove (14), and described tumbler (25) is upper to be arranged There is the gear block (254) that can be inserted into gear groove (14).

Water check valve the most according to claim 8, is characterized in that: described tumbler (25) lateral wall is provided with slot to make way (252), described gear block (254) is positioned at slot to make way (252), connects between described slot to make way (252) diapire and gear block (254) Being connected to compression spring (253), described compression spring (253) promotes gear block (254) to make gear block (254) insert gear groove (14) In.

Water check valve the most according to claim 8, is characterized in that: described gear block (254) is along the axial height of spool (2) More than gear groove (14) along the axial length of spool (2).