CN100509174C - Rocker arm type spray head reversing mechanism - Google Patents
Rocker arm type spray head reversing mechanism Download PDFInfo
- Publication number
- CN100509174C CN100509174C CNB2007101763310A CN200710176331A CN100509174C CN 100509174 C CN100509174 C CN 100509174C CN B2007101763310 A CNB2007101763310 A CN B2007101763310A CN 200710176331 A CN200710176331 A CN 200710176331A CN 100509174 C CN100509174 C CN 100509174C
- Authority
- CN
- China
- Prior art keywords
- balance staff
- piece
- shifting block
- spray head
- rocker arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Nozzles (AREA)
Abstract
The present invention discloses a rocker-arm nozzle reversing mechanism and belongs to the agricultural water saving technical field. A technical proposal comprises a reversing device, a position-limiting device, a reversing part, and so on. A boss is arranged on the external surface at a single side of a nozzle body, and the reversing device is arranged on the boss. The position-limiting device is a circlip position-limiting ring. The reversing part is a projecting impact lug arranged at the lower side of the end section of the rocker arm. The reversing device comprises an erecting block (3), a shift block (6), a shaft (7), and a swing shaft (5). The shaft (7) is a horizontal shaft and is fixed on the boss. The shift block (6) and the erecting block (3) are arranged on the shaft (7) in a rotating way. The shift block (6) is three-fork shape. One end of the shift block (6) is connected with a shift lever (8), one end is a position-limiting arm, and the last end is a transmission lever (16). The transmission lever (16) is connected with the swing shaft (5). The other end of the swing shaft (5) is connected with the erecting block (3) via a rotating pin 1 (10) of the swing shaft. The present invention is provided with the advantages of the appropriate structure, the good stress characteristics, the flexible moving part, the long usable life, and so on.
Description
Technical field
The present invention relates to a kind of rocker arm type spray head reversing mechanism, belong to the agricultural water conservation technical field.
Background technology
At present, China's agricultural water amount is about 4,000 hundred million m
3, account for 68% of national total water amount; Wherein irrigation water capacity accounts for more than 90% of agricultural water amount.But the agricultural irrigation inefficiency, the water waste phenomenon is serious.The whole nation water efficiency of irrigation and folk prescription water grain-production rate be respectively 0.43 and 1.0kg about, well below developed country 0.70～0.80 and the level more than the 2.0kg.Compare with traditional broad irrigation, sprinkling irrigation can economize on water 50%, can also improve land utilization ratio, saves the labour, improves crop yield and quality etc.
At present agricultural irrigation shower nozzle description is various, and impact driven sprinkler has simple in structure, reliable operation, and advantage such as easy to process is the most a kind of shower nozzle of domestic and international application.Be subjected to the block-shaped restriction of irrigated land, impact driven sprinkler needs the special changement of a cover to finish the interior round fan-shaped sprinkling of predetermined angular scope.Changement generally is made up of commutator, stopping means and counter-rotating parts three parts, need bear shock loading repeatedly, so whether it is waited by force intensity, flexible movements to be the key factor of the fan-shaped sprinkling operational reliability of decision shower nozzle and stability.Changement at present both at home and abroad commonly used divides swivel hook formula, rotary block type, five kinds of hook-type, tappet rod type and swing block types etc. crouch.Wherein rotary block type and swivel hook formula belong to the coaxial-type commutator, and its driving lever and sudden change backing pin are installed on the same axle, compact conformation, but axle is long, stressed relatively poor, it is more that American-European countries uses, and adopts swivel hook formula commutator as U.S. Rainbird company, and German Perrot company adopts the rotary block type commutator; The driving lever of its excess-three kind changement and sudden change backing pin belong to different shaft type, two axles are arranged, easy for installation, and the stressed coaxial-type that is better than of axle, adopt the hook commutator that crouches as Israel NaanDan company, the PY of China's research and development and PYS series impact driven sprinkler all adopt the swing block type changement.Changement belongs to coaxial-type in the Chinese patent 99256740.8,99218223.9, and its structure and swing block type are close; 200620057049.1 changement belongs to hook commutator for sleeping in.The commutator of above-mentioned several changements nearly all is arranged on the impact driven sprinkler sprinkler body rear side, the sudden change backing pin of the counter-rotating components hit commutator of rocking arm afterbody during counter-rotating, because of the sudden change backing pin rotates arm of force weak point, the impact of generation is bigger, and impact makes axle wearing and tearing easily all perpendicular to axle.Always the above has the in use easy to wear and distortion of motion parts of changement now, directly reduces the service life and the reliability of shower nozzle.Therefore, be badly in need of present changement is improved or work out new changement simple and reasonable, long service life.
Summary of the invention
The objective of the invention is to provide a kind of rocker arm type spray head reversing mechanism, it have simple in structure, stress performance good, wearing and tearing less, rotate characteristics such as flexibility and reliability.
In order to reach the technical scheme that purpose of the present invention takes is to improve on wholecircle impact driven sprinkler structure, set up changement, comprise commutator, stopping means and counter-rotating parts etc., it is characterized in that, commutator is positioned at the side of shower nozzle sprinkler body, promptly establish boss, commutator is installed on boss at shower nozzle sprinkler body one-sided (with rocking arm tail swing zone homonymy) outer surface; Stopping means is the circlip type spacing ring; The counter-rotating parts are the bump lug that is located at rocking arm afterbody downside.
In the above-mentioned rocker arm type spray head reversing mechanism, described commutator comprises very piece 3, shifting block 6, axle 7, balance staff 5 etc., and its axis 7 is a trunnion axis, is fixed on the described boss; Shifting block 6 and very piece 3 be installed on the axle 7, being connected between them is rotationally connected, promptly shifting block 6 and very piece 3 all can rotate around axle 7; Shifting block 6 is three fork-shapeds, and an end links to each other with driving lever 8, and the other end is a position limit arm, and also having an end is drive link 16, and this drive link 16 has the commentaries on classics hole, and balance staff rotates pin II12 and by this commentaries on classics hole shifting block 6 and balance staff 5 coupled together; The other end of balance staff 5 rotates pin I10 and endures piece 3 and be connected by balance staff.
In the above-mentioned rocker arm type spray head reversing mechanism, very piece 3 is frame structure, is processed into concentric pylone in the framework both sides as the installing hole of enduring piece 3, and its frame width is greater than the commentaries on classics hole length of shifting block 6, shifting block 6 is sandwiched between the framework of enduring piece 3 and is installed on the axle 7, and the afterbody of framework is its position limit arm.
Above-mentioned rocker arm type spray head reversing mechanism also comprises two projections that are arranged on described boss homonymy, the shifting block 6 and very position limit arm of piece 3 is between these two projections, and these two projections are used for the very rotational positioning of piece and shifting block.
In the above-mentioned rocker arm type spray head reversing mechanism, balance staff 5 profiles are cylinder, and the one end is drilled with aperture, balance staff rotate pin I10 by this aperture be fixed on a gripper shoe 4 of enduring on the piece 3 be connected (corresponding commentaries on classics hole is arranged on the gripper shoe 4); The other end of balance staff 5 is processed into the open slideway of certain depth, this A/F is slightly larger than the external diameter that balance staff rotates pin II12, balance staff rotates pin II12 and is contained in this open slideway, be processed into blind hole with balance staff 5 inside of this open slideway homonymy, its hole depth surpasses the degree of depth of this open slideway, and the aperture is slightly larger than the external diameter of stage clip 11, and stage clip 11 is built in this hole, stage clip 11 upper ends head on this blind hole bottom, and following end in contact balance staff rotates pin II12.
In the above-mentioned rocker arm type spray head reversing mechanism, hole that balance staff 5 is connected with gripper shoe 4 and axle 7 centre-to-centre spacing are less than or equal to contact position that balance staff 5 and balance staff rotate pin 12 changes the centre-to-centre spacing sum in holes with the centre-to-centre spacing of axle 7 with gripper shoe 4 respectively.
In the above-mentioned rocker arm type spray head reversing mechanism, the lower end of described shifting block 6 has aperture, and driving lever 8 is installed in rotation in this aperture, and driving lever is vertically or level for rotatable 90 °, can contact with the circlip type spacing ring during the vertical state of driving lever, be vacant state during level.
In the above-mentioned rocker arm type spray head reversing mechanism, described boss and shower nozzle sprinkler body cast solid.
In the above-mentioned rocker arm type spray head reversing mechanism, the circlip type spacing ring is made with steel wire or steel disc, is installed on the hollow shaft sleeve 21, before the dress pretightning force must be arranged.
Changement of the present invention belongs to bistable state sudden change stopper pin device, and very piece is equivalent to the backing pin that suddenlys change, and very piece rotates around trunnion axis by the transmission of driving lever, shifting block, balance staff, stage clip.When shower nozzle clockwise rotates, driving lever contact left side spacing ring, very piece rises, and clashed into by the lug of rocking arm afterbody downside, produces the lateral impact power that is parallel to axle, and shower nozzle is reversed counterclockwise.Shifting block is finished by balance staff and stage clip with the interlock of enduring piece, does not have the torsion spring in other changements, can improve the service life of rotatable parts and spring.This changement adopts horizontal coaxial structure, be set in the shifting block very between the piece, can shorten axial length and also very the piece impact that produced by rocking arm afterbody bump be parallel to the center line (see figure 9) of axle 7, can reduce the wear extent and the distortion of axle, improve the stressed rigidity of axle.Driving lever can rotate 90 °, vertically during state can with the fan-shaped angle of spacing ring touch controls, the control shower nozzle is made Fan spray head; Be vacant state during level, make shower nozzle finish wholecircle and spray, enlarge the scope of application of shower nozzle.Rational in infrastructure, advantages such as mechanical characteristic good, flexible moving part, long service life that this changement has.
Description of drawings
Fig. 1 is the rocker arm type spray head reversing mechanism of the present invention front view under the commentaries on classics state just;
Fig. 2 is the front view under the rocker arm type spray head reversing mechanism inverted status of the present invention;
Front view when Fig. 3 is an impact driven sprinkler absence of commutator of the present invention;
Fig. 4 is the block-dialing structure schematic diagram of rocker arm type spray head reversing mechanism of the present invention;
Fig. 5 is the very block structure schematic diagram of rocker arm type spray head reversing mechanism of the present invention;
Fig. 6 is the just connection diagram under the commentaries on classics state of rocker arm type spray head reversing mechanism of the present invention;
Fig. 7 is the structure chart of the balance staff of rocker arm type spray head reversing mechanism of the present invention;
Fig. 8 is the very connection diagrams such as piece, balance staff, stage clip, shifting block of rocker arm type spray head reversing mechanism of the present invention;
Fig. 9 is the very stressed schematic diagram of piece of rocker arm type spray head reversing mechanism of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, this rocker arm type spray head reversing mechanism is further described by embodiment.
As shown in the figure, 1 is rocking arm, and 2 is lug, and 3 for enduring piece, 4 is gripper shoe, and 5 for having the balance staff (see figure 7) of open slideway, and 6 is shifting block, and 7 is axle, 8 is driving lever, and 9 is the circlip type spacing ring, and 10 for balance staff rotates pin I, and 11 is stage clip, 12 for balance staff rotates pin II, and 13 is boss, and 14 is that projection 1,15 is a projection 2,16 is the shifting block drive link, and 17 is the shifting block position limit arm, and 18 for enduring the piece position limit arm, 19 are the anti-attrition packing ring, and 20 is collar, and 21 is hollow shaft sleeve.Fig. 1, Fig. 2 and Figure 6 shows that an embodiment of rocker arm type spray head reversing mechanism of the present invention, Fig. 3 are the structure chart of impact driven sprinkler when commutator not being installed, and Fig. 4 and Fig. 5 are respectively the commutator shifting block and the structure chart of piece very.In the present embodiment, set up changement of the present invention on the structure of wholecircle sprinkling impact driven sprinkler, be made of commutator, stopping means and counter-rotating parts, they are installed in rocking arm tail swing zone homonymy.Commutator is by very piece 3, gripper shoe 4, balance staff 5, shifting block 6, axle 7, driving lever 8, balance staff rotation pin 10 and 12, stage clip 11, anti-attrition packing ring 19, collar 20 etc. are formed.Its axis 7 is a trunnion axis, is fixed on the boss 13; Shifting block 6 and very piece 3 be installed on the axle 7, being connected between them is rotationally connected, promptly shifting block 6 and very piece 3 all can rotate around axle 7; Shifting block 6 is three fork-shaped (see figure 4)s, and an end links to each other with driving lever 8, and the other end is a position limit arm, and also having an end is drive link 16, and this drive link 16 has the commentaries on classics hole, and balance staff rotates pin 12 and by this commentaries on classics hole shifting block 6 and balance staff 5 coupled together.The balance staff rotation pin 12 that is installed on the shifting block drive link 16 contacts with the balance staff open slideway always, when shifting block when axle 7 clockwise rotates, its contact position is moved inward gradually by the balance staff outermost, make stage clip 11 pressurizeds of balance staff 5 inside, the pressure that produces is passed to gripper shoe 4, and the rotating torque of generation can make very that piece 3 rotates counterclockwise.
As shown in Figure 5, very piece 3 is frame structure, is processed into concentric pylone in the framework both sides as the installing hole of enduring piece 3, and its frame width is greater than the commentaries on classics hole length of shifting block 6, and shifting block 6 is sandwiched between the framework of enduring piece 3 and is installed on the axle 7, and the afterbody of framework is its position limit arm.
Two projections are positioned at boss 13 homonymies, the shifting block 6 and very position limit arm of piece 3 is between these two projections, and these two projections are used for the very rotational positioning of piece and shifting block.
Stopping means adopts circlip type spacing ring 9, makes with steel wire or steel disc, has two, and relative direction is installed on the hollow shaft sleeve 21 up and down, before the assembling pretightning force must be arranged, and can adjust two relative angles that spacing ring is long-armed, realizes the fan-shaped control of shower nozzle.The counter-rotating parts are lugs 2 of rocking arm 1 afterbody downside.
As shown in Figure 8, one end of balance staff 5 rotates pin 10 by balance staff and is connected with gripper shoe 4, balance staff 5 can rotate pin 10 rotations around the balance staff that is fixed on the gripper shoe 4, the other end of balance staff 5 rotates pin 12 by balance staff and is connected with shifting block drive link 16, and balance staff rotates between pin 12 and the shifting block drive link 16 and can rotate mutually.Balance staff 5 profiles are cylinder, the outer end that links to each other with gripper shoe 4 is drilled with aperture (corresponding commentaries on classics hole is arranged on the gripper shoe 4), the other end of balance staff 5 is processed into the open slideway of certain depth, A/F is slightly larger than the external diameter that balance staff rotates pin 12, balance staff rotates pin 12 and is contained in this open slideway, can be free to slide in this open slideway; Be processed into blind hole with the balance staff inside of open slideway homonymy, its hole depth surpasses the degree of depth of open slideway, and the aperture is slightly larger than the external diameter of stage clip 11.Stage clip 11 is built in the hole, and the stage clip upper end heads on the blind hole bottom, and following end in contact balance staff rotates pin 12.When very piece 3 rotated, the distance between shifting block drive link 16 and the gripper shoe 4 was changing.Shifting block 6 can pass through balance staff 5, stage clip 11 when rotating, balance staff rotates pin 10 and the piece rotation is endured in 12 drives.
Hole that balance staff 5 is connected with gripper shoe 4 and axle 7 centre-to-centre spacing are less than or equal to contact position that balance staff 5 and balance staff rotate pin 12 changes the centre-to-centre spacing sum in holes with the centre-to-centre spacing of axle 7 with gripper shoe 4 respectively.When shifting block 6 clockwise rotates around axle 7, the contact position that balance staff rotates pin 12 and balance staff open slideway is moved inward gradually by the balance staff outermost, make the stage clip pressurized of balance staff 5 inside and make balance staff 5 rotate pin 10 rotations around the balance staff that is fixed on the gripper shoe 4, the stage clip pressure that produces is passed to gripper shoe 4, and the moment of rotation that its component produces makes very that piece 3 rotates counterclockwise.Then shifting block 6 is rightabout with piece 3 very and rotates.Shifting block 6 rotating band movable pendulum axles 5, and and stage clip 11 synergy of balance staff inside, driving very, piece 3 rotates.
Level below shifting block 6 is to having thin through hole, concave shape is processed in the outside perpendicular to thin through hole direction, be used for fixing driving lever 8, driving lever 8 inserts thin through hole both sides respectively, can make driving lever keep vertical and horizontal two states, driving lever 8 outermost end surpass circlip type spacing ring 9 lowest positions during plumbness, guarantee effectively spacing.
When shower nozzle just changes (clockwise direction) to certain position, driving lever 8 begins to contact circlip type spacing ring 9, and this moment, very piece 3 rose as yet.After shower nozzle continues just changeing certain low-angle, shifting block drive link 16 drives balance staff 5 motions, then driving very, piece 3 rotates, be raised up to certain position when enduring piece 3 rotations, clash into lug 2, this moment, shifting block position limit arm 17 contacted with projection 14, and very piece position limit arm 18 contacts with projection 15, and very piece 3 and shifting block 6 are in stable position.Because shower nozzle rocking arm 1 can't normally be arranged, the bump moment of generation causes shower nozzle counter-rotating (counterclockwise) much larger than the driving moment that water impact rocking arm air deflector produces.
When shower nozzle is inverted to certain position, driving lever 8 begins to contact circlip type spacing ring 9, and this moment, very piece 3 fell as yet.After shower nozzle continues certain low-angle of counter-rotating, balance staff 5 continues motion, when enduring piece 3 after turning an angle under balance staff 5 and the deadweight acting in conjunction, very piece 3 does not clash into lug 2, this moment, shifting block position limit arm 17 contacted with projection 15, very piece position limit arm 18 contacts with projection 14, and very piece 3 and shifting block 6 are in stable position again.Shower nozzle rocking arm 1 can normally be arranged, and under the driving moment effect that water impact rocking arm air deflector produces, restarting just changes.
Driving lever 8 contact with circlip type spacing ring 9 when vertical state can control the fan-shaped angle of shower nozzle, and when being vacant state after still rotating 90 °, driving lever 8 can not contact with circlip type spacing ring 9, and shower nozzle can be realized the wholecircle sprinkling.
Because of the shifting block shape is complicated, should adopt casting processing.Boss and shower nozzle sprinkler body cast solid.
As shown in Figure 9, very piece is subjected to the impact (F1) of rocking arm afterbody bump generation to be parallel to the center line of axle 7, can reduce the wear extent and the distortion of axle.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1, a kind of rocker arm type spray head reversing mechanism comprises commutator, stopping means and counter-rotating parts, it is characterized in that commutator is positioned at the side of shower nozzle sprinkler body, promptly establishes boss at the one-sided outer surface of shower nozzle sprinkler body, and commutator is installed on boss; Stopping means is the circlip type spacing ring; The counter-rotating parts are the bump lug that is located at rocking arm afterbody downside; Described commutator comprises very piece (3), shifting block (6), axle (7), balance staff (5), and its axis (7) is a trunnion axis, is fixed on the described boss; Shifting block (6) and very piece (3) be installed on the axle (7), being connected between them is rotationally connected, i.e. shifting block (6) and endure piece (3) and all can rotate around axle (7); Shifting block (6) is three fork-shapeds, and an end links to each other with driving lever (8), and the other end is the shifting block position limit arm, and also having an end is drive link (16), and this drive link (16) has the commentaries on classics hole, and balance staff rotates pin II (12) and by this commentaries on classics hole shifting block (6) and balance staff (5) coupled together; The other end of balance staff (5) rotates pin I (10) and endures piece (3) and be connected by balance staff.
2, rocker arm type spray head reversing mechanism according to claim 1, it is characterized in that, very piece (3) is frame structure, be processed into concentric pylone in the framework both sides as the installing hole of enduring piece (3), its frame width is greater than the commentaries on classics hole length of shifting block (6), shifting block (6) is sandwiched in and is installed between the framework of enduring piece (3) on the axle (7), and the afterbody of framework is for enduring the piece position limit arm.
3, rocker arm type spray head reversing mechanism according to claim 2, it is characterized in that, this mechanism also comprises two projections that are arranged on described boss homonymy, shifting block (6) the and very position limit arm of piece (3) is between these two projections, and these two projections are used for the very rotational positioning of piece and shifting block.
4, rocker arm type spray head reversing mechanism according to claim 1 and 2, it is characterized in that, balance staff (5) profile is cylinder, the one end is drilled with aperture, balance staff rotate pin I (10) by this aperture be fixed on a gripper shoe (4) of enduring on the piece (3) and be connected, corresponding commentaries on classics hole is arranged on the gripper shoe (4); The other end of balance staff (5) is processed into the open slideway of certain depth, this open slideway width is slightly larger than the external diameter that balance staff rotates pin II (12), balance staff rotates pin II (12) and is contained in this open slideway, be processed into blind hole with balance staff (5) inside of this open slideway homonymy, its hole depth surpasses the degree of depth of this open slideway, the aperture is slightly larger than the external diameter of stage clip (11), stage clip (11) is built in this hole, stage clip (11) upper end heads on this blind hole bottom, and following end in contact balance staff rotates pin II (12).
5, rocker arm type spray head reversing mechanism according to claim 4, it is characterized in that the centre-to-centre spacing of hole that balance staff (5) is connected with gripper shoe (4) and axle (7) is less than or equal to contact position that balance staff (5) and balance staff rotate pin II (12) changes the centre-to-centre spacing sum in hole with the centre-to-centre spacing of axle (7) with gripper shoe (4) respectively.
6, rocker arm type spray head reversing mechanism according to claim 1 and 2 is characterized in that, the lower end of described shifting block (6) has aperture, and driving lever (8) is installed in rotation in this aperture.
7, rocker arm type spray head reversing mechanism according to claim 1 and 2 is characterized in that, described boss and shower nozzle sprinkler body cast solid.
8, rocker arm type spray head reversing mechanism according to claim 1 and 2 is characterized in that, the circlip type spacing ring is made with steel wire or steel disc, is installed on the hollow shaft sleeve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101763310A CN100509174C (en) | 2007-10-25 | 2007-10-25 | Rocker arm type spray head reversing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101763310A CN100509174C (en) | 2007-10-25 | 2007-10-25 | Rocker arm type spray head reversing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101138756A CN101138756A (en) | 2008-03-12 |
| CN100509174C true CN100509174C (en) | 2009-07-08 |
Family
ID=39190956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101763310A Expired - Fee Related CN100509174C (en) | 2007-10-25 | 2007-10-25 | Rocker arm type spray head reversing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100509174C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399612B (en) | 2014-11-19 | 2017-02-22 | 江苏大学 | Jet type spray head double-limiting reversing mechanism |
| CN109076924A (en) * | 2018-08-31 | 2018-12-25 | 芜湖新达园林绿化集团有限公司 | A kind of small-sized flowers irrigation equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918643A (en) * | 1974-11-01 | 1975-11-11 | Nelson Corp L R | Impact and reactant step-by-step rotary sprinkler head |
| CN2383588Y (en) * | 1999-07-25 | 2000-06-21 | 郑州喷泉喷灌工程有限公司 | Rocker arm type reversing spray head |
| CN2399105Y (en) * | 1999-12-22 | 2000-10-04 | 郑州喷泉喷灌工程有限公司 | Rocker arm type reversing spray head |
| CN2436234Y (en) * | 2000-06-15 | 2001-06-27 | 郑州喷泉喷灌工程有限公司 | Double-tube rocker arm type reversing nozzle |
-
2007
- 2007-10-25 CN CNB2007101763310A patent/CN100509174C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918643A (en) * | 1974-11-01 | 1975-11-11 | Nelson Corp L R | Impact and reactant step-by-step rotary sprinkler head |
| CN2383588Y (en) * | 1999-07-25 | 2000-06-21 | 郑州喷泉喷灌工程有限公司 | Rocker arm type reversing spray head |
| CN2399105Y (en) * | 1999-12-22 | 2000-10-04 | 郑州喷泉喷灌工程有限公司 | Rocker arm type reversing spray head |
| CN2436234Y (en) * | 2000-06-15 | 2001-06-27 | 郑州喷泉喷灌工程有限公司 | Double-tube rocker arm type reversing nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101138756A (en) | 2008-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100509174C (en) | Rocker arm type spray head reversing mechanism | |
| CN1944774B (en) | Full automatic speed reducing clutch and the washing machine therewith and washing method | |
| CN105690330A (en) | Swinging power tool | |
| CN201102002Y (en) | Spray nozzle reversing mechanism | |
| CN2933586Y (en) | Tilting type automatic centrifuge | |
| CN209385293U (en) | Synchronous bent axis type axial piston pump | |
| CN212376699U (en) | TRT is blade for electricity generation with self-cleaning function | |
| CN201953546U (en) | Operation mechanism of five-blade propeller | |
| CN102848123B (en) | Rotary pipe mechanism of full-automatic metal round-link chain automatic flashing butt welding machine | |
| CN214143584U (en) | Hydraulic engineering construction is with laborsaving and gate that easily overhauls | |
| CN201446452U (en) | Rotary machine tool protective cover | |
| CN109906719B (en) | Seedling taking mechanism of rice pot seedling transplanter | |
| CN209015929U (en) | A kind of operating mechanism of double power supply automatic transfer switch | |
| CN207569093U (en) | The transmission clutch of four-wheel Self-walking sprayer with spraying rod and machine coordination | |
| CN208793262U (en) | A kind of variable-ratio impeller for furnace water pump | |
| CN110332351A (en) | A kind of telescopic butterfly valve | |
| CN207829801U (en) | A kind of novel hydraulic drill torque export structure | |
| CN205592222U (en) | Can change actuating cylinder | |
| CN210484769U (en) | Engineering vehicle control mechanism | |
| CN105508299B (en) | A kind of single-stage high-speed air blower pilot blade adjusting mechanism | |
| CN2905351Y (en) | Installation guide device of engine piston link rod | |
| CN214887271U (en) | Valve rocker | |
| CN208050789U (en) | A kind of long stroke precision die head part device easy to operation | |
| CN113530779B (en) | Plunger pump variable mechanism | |
| CN208815231U (en) | It is a kind of two-sided to cylinder jacquard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20121025 |