Detailed description of the invention:
A kind of drain valve as shown in Fig. 1 to Figure 21, including valve body 10, spool 20 and telescoping mechanism 30;
This valve body 10 is provided with water inlet 101, outlet 102 and extends to the water stream channel of outlet 102 from water inlet 101
103;
This telescoping mechanism 30 is installed in valve body 10, and in the present embodiment, this telescoping mechanism 30 is positioned on water stream channel 103;
This spool includes mandrel and is available for the gland 201 of user's pressing, and one end of this mandrel is connected with gland 201, and is somebody's turn to do
The other end of mandrel inserts in valve body 10 from water inlet 101 and is connected with telescoping mechanism 30, especially, and the lower mandrel of this mandrel
The lower end of enlarged diameter section is inserted in valve body 10 from water inlet 101 and is connected with telescoping mechanism 30;
When gland 201 is pressed, this telescoping mechanism 30 orders about spool and cuts between an open position and a closed position
Change;
Being provided with between this spool 20 and valve body 10 selectively makes water stream channel 103 be blocked or by unobstructed opening/closing machine
Structure;
When water stream channel 103 is blocked, water is prohibited from outlet 102 exits valve body 10;
In water stream channel 103 by unobstructed time, water is allowed to from outlet 102 exits valve body 10;
When spool 20 is in the open position, switching mechanism makes water stream channel 103 unobstructed;
When spool 20 is in the closed position, switching mechanism makes water stream channel 103 be blocked;
Wherein, figures 1 and 2 show that, spool 20 is in the open position, and water stream channel 103 is unobstructed, and water is allowed to from row
Export outside 102 exits valve body 10;Fig. 3 and Fig. 4 shows that spool 20 is in the closed position, and water stream channel 103 is blocked, and water is banned
Only from outlet 102 exits valve body;
Be provided with in valve body 10 be on water stream channel 103 for intercepting solids (such as granule, human hair etc.) and
Allow the filter screen 40 that water passes through.
Especially, filter screen 40 is assemblied in valve body 10 in removable mode.This technical scheme is by being set to filter screen
Removable mode, it is simple to the cleaning to filter screen.
This filter screen 40 includes filter screen outer ring 401, be enclosed in filter screen outer ring 401 filter screen inner ring 402 and be located at filter screen
The dictyosome 403 of the band mesh between outer ring 401 and filter screen inner ring 402, this filter screen inner ring 402 surrounds an inner circle of apertures 404;
Being provided with filter screen support lug 104 ringwise in this valve body 10, this filter screen 40 inserts valve from the water inlet 101 of valve body
In body 10, and when filter screen outer ring 41 offsets with filter screen support lug 104, filter screen 40 is supported in filter screen support lug 104;
It is additionally provided with between this spool 20 and valve body 10 and can stop or allow spool 20 to detach the clutch structure of valve body 10, should
Clutch structure switches between an assembled state and a disassembled form;
When clutch structure is in assembled state, spool 20 is prevented from detaching valve body 10;
When clutch structure is in disassembled form, spool 20 is allowed to detach valve body 10;
The mandrel of this spool is slidably disposed through the inner circle of apertures 404 of filter screen, and this spool 20 is provided with and is positioned at below filter screen
Mention portion, this mentions the outer diameter D 1 diameter D2 more than inner circle of apertures in portion, and during so that spool 20 detaches valve body 10, the portion of mentioning will
Filter screen 40 is taken out of outside valve body 10.This technical scheme takes filter screen out of while detaching spool, can be easy to the dismounting of filter screen, additionally,
The telescopic movable frequency switched between open position and closed position due to spool (i.e. mandrel) is higher, by inner circle of apertures
Be designed as being slidably matched with mandrel so that mandrel can opposed screen movable, so can avoid spool active procedure drives
Filter screen moves and filter screen is shaken, and causes solids landing, and filter screen lost efficacy.
Clutch structure is made to switch between assembled state and disassembled form when gland 201 is twisted.This technical scheme can
So that user manually reverses gland and detaches spool and dismantle filter screen simultaneously, it is simple to cleaning filter screen.
Specifically:
This clutch structure includes that the spool locking plate 105 ringwise being located in valve body 10 and the spool being located on mandrel are convex
Block 202;
This spool locking plate 105 is provided with locking plate breach 106, and this spool locking plate 106 surrounds and is available for mandrel and (especially descends mandrel
205) the spool perforation 107 passed;
In spool projection 202 with locking plate breach 106 to timing, it is allowed to spool convex 202 pieces through spool locking plate 105, now,
This clutch structure is in disassembled form;
When spool projection 202 misplaces with locking plate breach 106, spool projection 202 is stopped by spool locking plate 105 and forbids valve
Core projection 202 is through spool locking plate 105, and now, this clutch structure is in assembled state;
Mandrel (i.e. spool) selectively makes spool projection 202 align with locking plate breach 106 or misplace when rotating, mandrel
It is to be connected with being relatively fixed with gland 201, reverses gland 201 and rotate to order about mandrel.Clutch structure disclosed in this technical scheme
Simply, implement conveniently.
This switching mechanism includes the sealing-plug 203 being installed on the mandrel of spool;
The mandrel of this spool includes mandrel 204 and lower mandrel 205;
On this, the upper end 206 of mandrel is connected with gland 201 in removable mode, and on this, the lower end 207 of mandrel is provided with
Mandrel jack 208;
On this, mandrel 204 is slidably disposed through the inner circle of apertures 404 of filter screen so that filter screen 40 is placed on outside mandrel 204, should
The diameter D2 of inner circle of apertures is more than or equal to the diameter D3 of upper mandrel;
This lower mandrel 205 is in ladder shaft-like, including reduced diameter section 209 and enlarged diameter section 210, the lower end of reduced diameter section 209
Connect with the upper end of enlarged diameter section 210, and formed in the joint of the lower end of reduced diameter section 209 with the upper end of enlarged diameter section 210
Mandrel step surface 211;
This sealing-plug 203 is provided with sealing-plug centre bore 212, and the upper end of the reduced diameter section 209 of this lower mandrel passes sealing-plug
Centre bore 212 also inserts in upper mandrel jack 208 in removable mode, so that sealing-plug 203 is clamped under mandrel
Between end 207 and mandrel step surface 211, to realize the installation of sealing-plug 203;
The diameter D4 of this sealing-plug centre bore is more than or equal to the diameter D5 of the reduced diameter section of lower mandrel, and in sealing-plug
The diameter D4 of central hole is less than the diameter D6 of the enlarged diameter section of lower mandrel;
This spool projection 202 is located at the lower end of the enlarged diameter section 210 of lower mandrel, and this spool projection 202 is along lower mandrel
Radially extending of enlarged diameter section 210.This technical scheme can be easy to each parts of spool and the dismounting of sealing-plug, it is simple to portion each to spool
Part and the cleaning of sealing-plug.
In the present embodiment, the quantity of spool projection 202 is 2, and these 2 spool projections 202 are symmetrically distributed in lower mandrel 205
Both sides.The quantity of locking plate breach 106 is identical with the quantity of spool projection 202, i.e. the quantity of locking plate breach 106 is 2, and these are 2 years old
Individual locking plate breach 106 is symmetrically distributed in the both sides of inner circle of apertures.
The upper end of the reduced diameter section 209 of this lower mandrel and upper mandrel jack 208 threaded engagement;
This gland 201 be provided with connection post 213, this connection post 213 be provided with connection post jack 214, the upper end 206 of upper mandrel with
Removable mode is inserted in connection post jack 214;
On this upper end 206 of mandrel be connected post jack 214 threaded engagement.
This switching mechanism also includes the sealing ring 50 being installed in valve body;
This sealing-plug 203 includes filling in body 215, and this fills in body 215 is that the bottom surface 216 filling in body the most without leave is toward filling in body
The direction of end face 217 Rotary-table that is gradually increased, this end face 217 filling in body is provided with along filling in radially extending of body 215
Plug lip 218 ringwise, this plug lip 218 is the portion of mentioning, and this sealing-plug centre bore 212 is from the bottom surface filling in body
216 extend to the end face 217 filling in body fills in body 215 to run through;
This sealing ring 50 includes sealing ring main body 501 ringwise and the sealing radially extended along sealing ring main body 501
Ring flange 502, this sealing ring main body 501 surrounds and is available for filling in the sealing ring perforation 503 that body 215 inserts, this sealing ring perforation 503
Diameter along fill in body 215 insert this sealing ring perforation 503 direction gradually decrease;
It is and fills in body 215 from filling in the direction toward the end face 217 filling in body, the bottom surface 216 of body and extract the perforation of this sealing ring
The direction of 503;
In time filling in body 215 and insert in sealing ring perforation 503, sealing ring perforation 503 is stuffed into body 215 and blocks, sealing ring
Flange 502 offsets with plug lip 218, and spool 20 is in the closed position;
In fill in body 215 extract sealing ring perforation 503 outer time, sealing ring bores a hole and 503 is opened, sealing ring flange 502 from
Opening plug lip 218, spool 20 is in the open position.
Lower mandrel 205 is through sealing ring perforation 503.
This technical scheme is by filling in the direction that body is designed as filling in the most without leave the past end face filling in body in bottom surface of body
The Rotary-table that is gradually increased, to be its diameter to sealing ring perforated design gradually subtract along the direction filling in body and inserting the perforation of this sealing ring
Few structure, seals fiting effect to strengthen, simultaneously in time filling in body and insert in sealing ring perforation, and sealing ring flange and sealing-plug
Flange offsets, it is also possible to strengthen sealing effectiveness.
This telescoping mechanism 30 includes shell 301, expansion link 302, compression spring 303, stop collar 304 and removable pin 305;
This expansion link 302 includes base portion 306 and from the top end face 363 upwardly extending push rod portion 307 of base portion, this base portion
The base portion accommodating hole 309 extended in base portion 306 from the bottom face 308 of base portion it is provided with in 306;
As shown in figure 15, the side 310 of this base portion is provided with rail groove 311, this rail groove 311 include descending section 312 and under
Row section 312 parallel and in a distance up section 313, be connected to the end 314 of the up section head end 315 with descending section it
Between upper lead segment 316 and the lower lead segment 319 that is connected between the end 317 of descending section and the head end 318 of up section;
The side of this lower lead segment 319 is provided with the side channel 320 connected with lower lead segment 319;Wherein,
On this upper groove side of lead segment 316 include 321, one section of changeover portion of one section of first tilting section 322 and one section second incline
Tiltedly section 323, the low side 324 of this first tilting section connects the end 314 of up section, and high-end the 325 of this first tilting section connected
The upper end 326 of the section of crossing, the lower end 327 of this changeover portion connects the low side 328 of this second tilting section, this second tilting section high-end
329 head ends 315 connecting descending section;
This first tilting section 321 is parallel with the second tilting section 323, and inclines with second in high-end the 325 of the first tilting section
Tiltedly high-end the 329 of section are contour;
The lower groove side 362 of upper lead segment that should be relative with the upper groove side of upper lead segment is in left and right two ends 330,331 Gao Erke
For the Vulpes planar that the centre position 332 of removable pin stop is low;The right-hand member 331 of the lower groove side of upper lead segment connects the end of up section
314, the left end 330 of the lower groove side of upper lead segment connects the head end 315 of descending section;
This first tilting section high-end 325 and second the low side 328 of tilting section be respectively positioned on lower groove side upper of lead segment
Side, and high-end the 325 of this first tilting section and second the low side 328 of tilting section be respectively positioned on the interposition of lower groove side of lead segment
Put the right side of 332, and high-end the 325 of this first tilting section and second the low side 328 of tilting section be respectively positioned on the lower groove of lead segment
The left side of the right-hand member 331 of side;
The upper groove side of this lower lead segment include one section in segmental arc 333 and one section of the 3rd tilting section 334, this interior segmental arc 333
One end connects the end 317 of descending section, and the other end of this interior segmental arc 333 connects the low side 335 of the 3rd tilting section, and the 3rd tilts
High-end the 336 of section connect the head end 318 of up section;
The lower groove side of lower lead segment that should be relative with the upper groove side of lower lead segment includes one section of outer arc segments 337 and one section of connection
Section 338, this side channel 320 includes the right groove side 340 of side channel relative with the left groove side 339 of side channel, the left groove side 339 of side channel, side
The bottom land 341 of groove and the side channel relative with the bottom land 341 of side channel import and export 342;
One end of this outer arc segments 337 connects the end 317 of descending section, and the other end of this outer arc segments 337 connects a left side for side channel
The upper end 343 of groove side, the lower end 344 of the left groove side of this side channel connects the left end 345 of the bottom land of side channel, the right side of the bottom land of this side channel
The lower end 347 of the right groove side of end 346 connection side channel, the upper end 348 of the right groove side of this side channel connects one end of linkage section 338, should
The other end of linkage section 338 connects the head end 318 of up section;
This side channel imports and exports 342 joints being positioned at lower lead segment 319 and side channel 320;
This side channel imports and exports 342 lower sections being positioned at the 3rd tilting section 334, and the low side 335 of the 3rd tilting section is positioned at side channel
Importing and exporting the left side of 342, high-end the 336 of the 3rd tilting section are positioned at side channel and import and export the right side of 342;
In the present embodiment, this linkage section 338 is to tilt, and wherein, the upper end 378 of the right groove side of this side channel connects linkage section
Low side 349, high-end the 350 of this linkage section connect the head end 318 of up section;
The circle at this interior segmental arc 333 place and the circle at outer arc segments 337 place are concentric circulars;
This stop collar 304 is hollow and both ends open, and this stop collar 304 is placed on the base portion of this expansion link slidably
Outside 306, the sidewall 352 of this stop collar is provided with in bar shaped and runs through the stop collar chute 353 of sidewall of stop collar, this stop collar
The length direction of chute 353 is perpendicular to the direction of motion of expansion link 302;
One end of this removable pin 305 is stretched in rail groove 311 through stop collar chute 353, the other end of this removable pin 305
Indwelling is in stop collar chute 353, and removable pin leads the length direction down along stop collar chute 353 at stop collar chute 353
Movable;
Being provided with shell containing cavity 354 in this shell 301, the top of this shell 301 is provided with and connects with shell containing cavity 354
Shell aperture 355, this stop collar 304 is installed in shell containing cavity 354, and the base portion 306 of this expansion link is at shell containing cavity
In 354 movable, the push rod portion of this expansion link away from the outer end 356 of base portion outside shell aperture 355 stretches out in shell 301, and
The outer end 356 in the push rod portion of this expansion link offsets with the lower end of the enlarged diameter section 210 of lower mandrel, it is clear that spool (include gland,
Sealing-plug, mandrel) can rotate by relative telescopic bar, in order to when spool rotates, clutch structure is optional to be located in
In assembled state or disassembled form;
The inner relative with the outer end in the push rod portion of expansion link, the push rod portion of this expansion link is connected with base portion 306;
This compression spring 303 is placed in base portion accommodating hole 309, and one end of this compression spring 303 and base portion accommodating hole
At the bottom of hole, 357 offset, and the other end of this compression spring 303 and shell 301 offset, especially, and the other end of this compression spring 303
Offset with at the bottom of the chamber of shell containing cavity 358;
Spacing stopper 359 it is provided with in this shell containing cavity 354;
When bottom face 308 and the spacing stopper 359 of the base portion of this expansion link offset, it is maximum that this expansion link 302 is in retraction
Position;
When the bottom land 341 of this removable pin 305 and side channel offsets, this expansion link 302 is in and stretches out maximum position;
This expansion link 302 is stretching out motion between maximum position and retraction maximum position;
The upper end 326 of high-end the 325 of this first tilting section and changeover portion is connected by the first arc section 360, and this second inclines
Tiltedly high-end the 329 of the section head end 315 with descending section passes through the second arc section 361 and is connected, the circle at this first arc section 360 place,
The circle at the second arc section 361 place and the radius of removable pin 305 are equal;
When this removable pin 305 and the first arc section 360 or the second arc section 361 offset, the end of the base portion of this expansion link
End face 308 offsets with spacing stopper 359;This technical scheme is by arranging spacing stopper 359, so that this removable pin and first
When arc section or the second arc section offset, the bottom face 308 of base portion the most also offsets with spacing stopper 359, so can carry
The stability of high expansion link motion and reliability, clamping stagnation is existing such as to avoid expansion link and removable pin to occur in relative movement
As and cause expansion link to move;
When removable pin 305 is in side channel 320, this spool 20 is in the open position;
When removable pin 305 rests in the centre position 332 of lower groove side of upper lead segment, this spool 20 is in close stance
Put.
This compression spring 303 has makes expansion link 302 from retraction maximum position to becoming of stretching out maximum position motion all the time
Gesture.
The operation principle of the telescoping mechanism of the present invention is as follows:
As illustrated in fig 16 a, when removable pin 305 is in side channel 320, and applying external force (not shown in figure, this externally applied forces
Can act on expansion link 302) order about expansion link 302 and overcome the active force of compression spring 303 and in shell containing cavity 354
Making retraction campaign, removable pin 305 first imports and exports lead segment 319 342 entrance from side channel, then with the of the upper groove side of lower lead segment
Three tilting sections 334 offset (as shown in fig 16b), and the most up by the guiding of the 3rd tilting section 334 of the upper groove side of lower lead segment
The head end 318 (as shown in figure 16 c) of section, then move to the end 314 of up section from the head end 318 of up section along up section 313
And enter upper lead segment 316, then offset with the first tilting section 321 of the upper groove side of upper lead segment, and by the upper groove of upper lead segment
First tilting section 321 of side guides to the first arc section 360 and offsets (as shown in figure 16d) with the first arc section 360, now should
The bottom face 308 of the base portion of expansion link offsets with spacing stopper 359, and expansion link 302 is in retraction maximum position.Cancelling external force
After, the effect of spring 303 by compression, compression spring 303 is ordered about expansion link 302 and is stretched out motion, removable pin 305 and upper lead segment
Lower groove side 362 offset that (as shown in figure 16e, especially removable pin 305 is supreme with the right-hand member 331 of the lower groove side from upper lead segment
The lower groove side of the upper lead segment of a section between the centre position 332 of the lower groove side of lead segment offsets), by the lower groove side of upper lead segment
The centre position 332 of the lower groove side being directed to lead segment of 362, and finally rest in the interposition of the lower groove side of lead segment
Put 332 (as shown in Figure 16 f), now sealing-plug fill in the sealing ring perforation 503 that body 215 inserts sealing ring, at spool 20
In closed position.
As shown in Figure 16 f, when removable pin rests in the centre position 332 of lower groove side of upper lead segment, apply external force (figure
Not shown in, this externally applied forces can act on expansion link 302) order about expansion link 302 and overcome the effect of compression spring 303
Power and in shell containing cavity 354, again make retraction campaign, removable pin 305 first with the second tilting section of the upper groove side of upper lead segment
323 offset (as shown in Figure 16 g), and are guided to the second arc section 361 also by the second tilting section 323 of the upper groove side of upper lead segment
Offset (as shown in Figure 16 h) with the second arc section 361, now the bottom face 308 of the base portion of this expansion link and spacing stopper 359 phase
Supporting, expansion link is in retraction maximum position, and this removable pin 305 enters the head end 315 of descending section.After cancelling external force, by compression
The effect of spring 305, compression spring 305 orders about expansion link 302 and stretches out motion, and removable pin 305 is from head end 315 edge of descending section
Move to the end 317 of descending section for descending section 312 and enter lower lead segment 319 (as shown in Figure 16 i), and with under lower lead segment
The outer arc segments 337 of groove side offsets, and is guided to side channel import and export 342 (such as figure by the outer arc segments 337 of the lower groove side of lower lead segment
Shown in 16j), and fall in side channel 320 (as shown in Figure 16 a or Figure 16 k) from side channel import and export 342, as shown in Figure 16 K, when
When the bottom land 341 of removable pin 305 and side channel offsets, this expansion link 302 is in and stretches out maximum position.
This technical scheme can simplify the structure of telescoping mechanism by rail groove reasonable in design, it is simple to manufactures, just
In expansion link realizes telescopic movable, and stretching motion has higher stability and reliability;
This technical scheme can be so that removable pin and stop collar and the assembling of expansion link by arranging stop collar, it is simple to movable
Pin coordinates in stretching into rail groove, removable pin can be carried out spacing activity by arranging stop collar chute on stop collar.
It is in the open position in spool 20, the enlarged diameter section of the outer end in the push rod portion of expansion link 356 and lower mandrel 210 times
End offsets, and spool projection 202 offsets with spool locking plate 105, in removable pin 305 is in side channel 320 but not with the bottom land 341 of side channel
Offset (as illustrated in fig 16 a);This technical scheme is so that spool is in the thrust of the outer end in the push rod portion by expansion link all the time
Effect, it is to avoid loosening occurs in spool, and improves the precision coordinated.
The cross section of the base portion 306 of this expansion link is square, and this stop collar 304 is square sleeve, so so that stop collar
Activity to expansion link carries out spacing;
The two opposite side surfaces 310 of the base portion of this expansion link is respectively equipped with a rail groove 311, on this stop collar 304 with set
The sidewall 352 having side 310 correspondence of the base portion of the expansion link of rail groove is respectively equipped with a stop collar chute 353, each stop collar
Chute 353 is respectively provided with a removable pin 305;One rail groove 311, stop collar chute 353 and a removable pin 305 form one group and stretch
Contracting activity operations unit, this technical scheme is by the opposite sides of the base portion at expansion link one group of telescopic movable operating unit respectively
The reliability and stability of motion can be improved;
This shell 301 is put together by the half-shell that two structures are identical, in order to the dismounting of telescoping mechanism;
The protuberance 364 ringwise of shell aperture 355 it is provided around on this shell 301;
This telescoping mechanism also includes that the rubber being placed on outside the push rod portion of expansion link stretches sealing shroud 365, and this rubber stretches close
One end of big envelope 365 is installed on protuberance 364, and this rubber stretches, the other end of sealing shroud 365 is installed in the push rod of expansion link
On the outer end 356 in portion.This technical scheme can play waterproof effect by arranging the rubber sealing shroud that stretches, and prevents water from entering shell
In containing cavity, stop collar, removable pin, expansion link, compression spring are impacted.
This valve body includes being sequentially communicated and forming first cylinder the 108, second cylinder the 109, the 3rd of this article of water stream channel 103
Cylinder the 110, the 4th cylinder 111 and the 5th cylinder 112, these cylinders are all hollow and both ends open;
The lower end 114 of this first cylinder and the lower end 116 of upper end 115, second cylinder of the second cylinder and the 3rd cylinder
The lower end 118 of upper end the 117, the 3rd cylinder and the upper end 119 of the 4th cylinder and the lower end 120 of the 4th cylinder and the 5th cylinder
Upper end 121 connects in removable mode respectively;
The upper end open of this first cylinder is water inlet 101, and the lower ending opening of the 5th cylinder is outlet 102;
The upper end 113 of this first cylinder can be inserted the cavity volume that is filled with water of the sanitary bath equipment such as hand basin, bathtub and (not show in figure
Go out) in, and the lower end 122 of the 5th cylinder can be used for connecting drain pipe (not shown);
This filter screen support lug 104 is located in the first cylinder 108, and especially, filter screen support lug 104 is located at the first cylinder
On the medial wall of 108;
Being provided with sealing ring ringwise in this second cylinder 109 and be fixedly mounted with flange 123, especially, sealing ring is fixedly mounted with flange 123
Being located on the medial wall of the second cylinder 109, sealing ring is fixedly mounted with (being fixedly mounted with described in the present embodiment is fixed installation) in sealing ring
Being fixedly mounted with on flange, this sealing ring is fixedly mounted with flange 123 and surrounds single order scalariform perforation 124, and this sealing ring flange 502 is supported in this rank
On the punch station terrace 125 that scalariform perforation 124 has, this punch station terrace 125 is provided with step surface groove 126 ringwise,
Sealing ring flange 503 is provided with sealing ring projection 504 ringwise, and this sealing ring projection 504 is absorbed in step surface groove 126;
This spool locking plate 105 is located in the 3rd cylinder 110;
On this spool locking plate 105, side towards the upper end open 130 of the 3rd cylinder is provided with and aligns position block 134,
In spool 20 rotate counterclockwise and spool projection 202 with on align position block 134 offset time, spool projection 202 and locking plate
Breach 106 aligns, now, it is allowed to spool projection 202 from the upper end open 130 of the 3rd cylinder toward the lower ending opening of the 3rd cylinder
The direction of 131 passes spool locking plate 105;
On this spool locking plate 105, side towards the lower ending opening 131 of the 3rd cylinder is provided with down and aligns position block 135,
In spool 20 rotate counterclockwise and make spool projection 202 with under align position block 135 offset time, spool projection 202 and lock
Sheet breach 106 aligns, now, it is allowed to spool projection 202 from the lower ending opening 131 of the 3rd cylinder toward the upper end open of the 3rd cylinder
The direction of 130 passes spool locking plate 105;
On this spool locking plate 105, the side towards the lower ending opening 131 of the 3rd cylinder is additionally provided with dislocation position block 136,
In spool 20 along rotate clockwise and when making spool projection 202 offset with dislocation position block 136, spool projection 202 and locking plate
Breach 106 misplaces, and now, spool projection 202 is stopped by spool locking plate 105 and forbids that spool projection 202 is from the 3rd cylinder
End opening 131 is toward the direction of the upper end open 130 of the 3rd cylinder through spool locking plate 105;
Figure 17 and Figure 18 shows that spool projection 202 and dislocation position block 136 offset schematic diagram, now by spool 20
After (i.e. gland 201) rotates counterclockwise 90 °, spool projection 202 with under align position block 135 and offset (such as Figure 19 and Figure 20
Shown in);
Figure 19 and Figure 20 show spool projection 202 with under align position block 135 and offset schematic diagram, now by spool 20
After (i.e. gland 201) edge rotates clockwise 90 °, spool projection 202 offsets (such as Figure 17 and Figure 10 institute with dislocation position block 136
Show);
The operation principle of the clutch structure of the present embodiment is as follows:
The process of spool is installed: manually spool is inserted spool projection 202 and spool locking plate 105 in valve body from water inlet
On when offseting towards the side of the upper end open 130 of the 3rd cylinder, rotate counterclockwise spool 20 (i.e. gland 201) until spool
Projection 202 with on align position block 134 and offset, now spool projection 202 aligns with locking plate breach 106, pushes away and makes spool 20 continue
Continue and be inserted into toward valve body 10, spool projection 202 from the lower ending opening 131 of the 3rd cylinder toward the upper end open 130 of the 3rd cylinder
Direction passes spool locking plate 105, and the lower end of the enlarged diameter section 210 of the lower mandrel of spool is through spool perforation 107 and expansion link
The outer end 356 in push rod portion offset, in the outer end in lower end and the push rod portion of expansion link of enlarged diameter section 210 of the lower mandrel of spool
After 356 offset, continue to push away making spool 20 be inserted into toward valve body 10, after continuing into a segment distance, by spool 20 (i.e. gland 201)
Along rotating clockwise 90 °, spool projection 202 offsets with dislocation position block 136, now unclamps hands, and spool 20 is by expansion link 302
Effect, expansion link 302 pushes away the lower ending opening making spool 20 make on spool projection 202 and spool locking plate 105 towards the 3rd cylinder
The side of 131 offsets, and completes the installation of spool therefrom;
Detach the process of spool: manually reverse after gland 201 makes spool rotate counterclockwise 90 °, spool projection 202 with under
Align position block 135 to offset, more manually mention spool 20 until spool 20 detaches valve body 10.
Be additionally provided with on spool locking plate 105 in 3rd cylinder 110 side of lower ending opening 131 towards the 3rd cylinder to
The guide cylinder 137 that the lower ending opening 131 of the 3rd cylinder extends;This guide cylinder 137 is hollow and both ends open, but,
The upper end open of this guide cylinder 137 is blocked by spool locking plate 105, and spool perforation 107 connects with guide cylinder 137, spool
The lower end of enlarged diameter section 210 of lower mandrel insert in guide cylinder 137 after spool perforation 107;
Align position block 135 under this and dislocation position block 136 is all located on the medial wall of guide cylinder 137, and under
Align position block 135 and dislocation position block 136 all on spool locking plate 105 towards the lower ending opening 131 of the 3rd cylinder
Side extends to the lower ending opening 131 of the 3rd cylinder, this technical scheme so that spool in open position and closed position it
Between switching stretching motion during, be limited to down to align position block and dislocation position block all the time, even if spool is flexible
Motor process rotates, also without departing under align position block and dislocation position block between limit rotatable scope
In, with avoid the occurrence of spool cannot detach valve body phenomenon occur;
It is provided with in 4th cylinder 111 and is taken in 138 and upper limit baffle plate 139,138 both ends opens of being taken in, upper limit
Baffle plate 139 be located at be taken in 138 upper end open at, upper limit baffle plate 139 is provided with flexible dodges hole 140;
138 interior and and upper limits of being taken in are inserted in the upper end 366 of the shell of telescoping mechanism from the lower ending opening 141 being taken in
Baffle plate 139 offsets, and hole 140 is dodged and big with lower mandrel through flexible in the outer end in the push rod portion of the expansion link of telescoping mechanism 356
The lower end of diameter segment 210 offsets;
Lower snare 142 and lower limit baffle plate 143, lower snare 142 both ends open, lower limit it is provided with in 5th cylinder 112
Baffle plate 143 is located at the lower ending opening of lower snare 142;
The lower end 367 of the shell of telescoping mechanism is inserted in lower snare 142 from the upper end open 144 of lower snare and and lower limit
Baffle plate 143 offsets.
This technical scheme by valve body is divided into 5 cylinders (the i.e. first cylinder, the second cylinder, the 3rd cylinder, the 4th
Body and the 5th cylinder), the processing and manufacturing of each cylinder can be easy to, it is simple to the dismounting of telescoping mechanism.
This technical scheme is taken in by setting and lower snare can be easy to the location and installation of telescoping mechanism.
This valve body also includes the first retainer the 145, second retainer the 146, the 3rd retainer 147 and the 4th retainer 148, these retainers
It is equipped with female thread;
Lower end the 116, the 3rd cylinder of upper end 115, second cylinder of lower end 114, second cylinder of this first cylinder upper
The lower end 120 of upper end the 119, the 4th cylinder of lower end the 118, the 4th cylinder of end the 117, the 3rd cylinder and the upper end of the 5th cylinder
121 are equipped with external screw thread;
Threaded with the first retainer 145 respectively in the lower end 114 of the first cylinder and the upper end 115 of the second cylinder, second
Threaded with the second retainer 146 respectively with the upper end 117 of the 3rd cylinder in the lower end 116 of body, the lower end 118 of the 3rd cylinder and
Threaded with the 3rd retainer 147 respectively in the upper end 119 of four cylinders, the lower end 120 of the 4th cylinder and the upper end 121 of the 5th cylinder
Threaded with the 4th retainer 148 respectively;
It is provided with around the circumferentially-spaced distribution of spool locking plate 105 between medial wall and the spool locking plate 105 of the 3rd cylinder 110
3rd cylinder dowel 149, forms one the 3rd cylinder water hole 150, this technical side between adjacent two the 3rd cylinder dowels 149
Case is reasonable in design, is suitable to the formation of this water stream channel;
The medial wall of the 4th cylinder 111 and being taken between 138 is provided with around the 4th of 138 circumferentially-spaced distributions of being taken in
Cylinder dowel 151, forms one the 4th cylinder water hole 152 between adjacent two the 4th cylinder dowels 151, this technical scheme sets
Meter rationally, is suitable to the formation of this water stream channel;
It is provided with the 5th around the lower circumferentially-spaced distribution of snare 142 between medial wall and the lower snare 142 of the 5th cylinder 112
Cylinder dowel 153, forms one the 5th cylinder water hole 154 between adjacent two the 5th cylinder dowels 153, this technical scheme sets
Meter rationally, is suitable to the formation of this water stream channel.
In the present embodiment, filter screen, sealing ring, the 3rd cylinder water hole, the 4th cylinder water hole and the 5th cylinder water hole
It is respectively positioned on this water stream channel.The water of entrained solids thing (such as granule, human hair etc.) through the first cylinder time by filter screen
Filter.
This water stream channel sequentially passes through filter screen the 40, first cylinder from the upper end open (i.e. water inlet 101) of the first cylinder
The upper end open 128 of lower ending opening the 127, second cylinder, sealing ring perforation the 503, second cylinder lower ending opening the 129, the 3rd
Upper end open the 130, the 3rd cylinder of cylinder crosses water, the upper end open of lower ending opening the 131, the 4th cylinder of the 150, the 3rd cylinder
132, upper end open the 155, the 5th cylinder mistake of lower ending opening the 133, the 5th cylinder of the 4th cylinder water hole the 152, the 4th cylinder
The lower ending opening (i.e. outlet 102) of water hole 154 and the 5th cylinder.