TW201416136A - Rotational water sprinkler - Google Patents

Abstract

The present invention provides a rotational water sprinkler which is assembled at the top end of a column so as to communicatively, assemblingly connect to a top end of a water supply pipe that is disposed in the column, it comprises an ejection direction adjustment unit, a water amount adjustment unit, and a deflection spray unit. Accordingly, the rotational water sprinkler of the invention can provide an adjustable amount of sprayed water, which can be attained by tuning and rotating the adjustment member of the water amount adjustment unit to change the connection and blockage relationships among the flow rate tube and the water-entering holes of the base seat. Besides, with the structural design capable of simply tuning and rotating the direction adjustment seat of the ejection direction adjustment unit, the water-spraying angle and range can be adjusted rapidly. Furthermore, cooperating with the two-stage braking structural design of the brake washer, the rotational water sprinkler of the invention can provide multiple advantages and functions, such as excellent stability of spraying water flow and adjustable amount of sprayed water and water-spraying angle and range, and excellent convenience and usability.

Description

Rotary sprinkler

The present invention relates to a sprinkler, and more particularly to a rotary sprinkler.

In the garden, a rotating sprinkler is installed for effective and automatic sprinkling operations. The related design is, for example, Taiwan Patent No. I290486, which provides a controllable water output and can rotate a spoiler. A rotating sprinkler with a fixed speed. However, when such a rotating sprinkler is used, it only rotates 360° and sprinkles water. It is impossible to regulate and limit the range of spraying angles. Therefore, it is often the case that water is sprayed on the unplanted places, such as sidewalks or lanes, causing the ground or road surface to be wet. Slip, which affects the safety of pedestrians or vehicles, has many inconveniences in use, and wastes a lot of water in the long run. Therefore, the design of the existing rotary sprinklers needs to be further improved.

Accordingly, it is an object of the present invention to provide a rotary sprinkler that has a range of adjustable water spray and spray angles and that has a stable rotational speed.

Therefore, the rotary sprinkler of the present invention is suitable for assembly on the top end of a pipe string and is connected to a top end of a water supply pipe disposed in the pipe string. The rotary sprinkler includes a spray direction adjusting unit and a water quantity adjustment. Unit, and a biasing spray unit.

The spray direction adjusting unit comprises a base mounted on the top end of the column, a spray guide coaxially fixed in the base, and a pivot pivotally disposed above the base relative to the spray guide Facing the seat, and the base and the steering seat Cooperating to define a water inlet space, the base has a bottom edge defining the water inlet space, and a plurality of water retaining walls extending upwardly through the water inlet hole communicating with the water inlet space, the spray guide And a water retaining piece portion that is fixed in the water inlet space, has a shaft tube portion that is standing upright, and a plurality of radially extending portions of the shaft tube portion that are radially connected to the outer circumferential surface of the shaft tube portion. The protrusion radius of the water-blocking portion is in a decreasing order, and the adjusting seat has a water-spraying wall which defines a top edge of the water-input space and is sleeved and pivoted on the annular tube, and the water-spraying wall is Stacked above the water blocking piece portion, and having a plurality of dividing grooves spaced apart from the bottom surface thereof and spaced apart around the shaft tube and respectively blocked by the water blocking piece, and a plurality of upper and lower grooves The water spray holes which are respectively connected to the splitter tanks and are respectively capable of discharging the water in the corresponding split tanks upward.

The water volume adjusting unit includes a coaxially inserted and disposed flow tube disposed under the water retaining wall for mounting on the water supply pipe, coaxially fixed to the flow tube, and coaxially penetrating therethrough. a base shaft and a drive shaft of the spray guide member, and an adjusting member mounted on the top end portion of the drive shaft and located above the adjustment seat to pivot the flow tube, the flow tube having a lower side of the water retaining wall And a plurality of adjusting wall portions respectively provided with flow holes respectively correspondingly distributed with the water inlet holes, and the adjusting wall portion is pivotable relative to the water retaining wall to block the closed portion water inlet hole, the adjusting member The upper friction wall portion has a tapered annular shape which gradually expands upward.

The deflecting spray unit comprises a set of elastic soft brake pads disposed outside the shaft portion and gradually expanding upwardly against the bottom surface of the upper friction wall portion, and a relatively movable and pivotally sleeved In the deflector of the shaft portion, the deflector has a space below the upper friction wall portion and gradually expands upward a lower annular friction wall portion, the lower friction wall portion has a driving cone surface that receives the water liquid sprayed upwardly from the water spray holes, and the driving cone surface is concavely provided with a plurality of radial distributions The taper is spirally extended radially outwardly, and the draining water is sprayed radially out of the diversion channel, and the lower friction wall portion can be pushed up by the water sprayed by the spray holes, and the upper friction is applied thereto. The wall portions are pressed against the brake pads in the upper and lower directions.

The effect of the invention is: through the structural design of the spray direction adjusting unit, the water quantity adjusting joint unit and the deflecting spray unit, the rotary sprinkler is designed to have a spray water flow in addition to the two-stage brake structure of the brake washer It has good stability and many advantages and functions such as adjustable spray water volume and spray angle range, which is quite convenient and practical.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

As shown in Figures 1, 2 and 3, the rotary sprinkler of the present invention is suitable for mounting and fixing to a column (not shown), and is connected to a water supply pipe (not shown) disposed in the column. And spraying the water delivered by the water supply pipe by a rotary spraying method.

The rotary sprinkler includes a spray direction adjusting unit 3 for mounting and fixing the pipe column, a water amount adjusting unit 4 pivotally mounted on the spray direction adjusting unit 3 for mounting on the water supply pipe, and a water quantity adjusting unit 4 The water amount adjusting unit 4 is biased toward the spray unit 5.

The spray direction adjusting unit 3 includes a coaxial mounting and fixed to the top of the tubular string a hollow base 31, a spray guide 32 and a cover 33 respectively fixed in the base 31, and a pivoting seat 34 pivotally mounted on the base 31, and the base 31 cooperates with the aligning seat 34 to define a water inlet space 30 for accommodating the spray guide 32 and the cover 33.

The base 31 has an outer ring wall 311 for screwing and fixing to the column, a water retaining wall 312 protruding radially from the inner peripheral surface of the outer ring wall 311, and a coaxial protrusion on the water retaining wall. An inner ring wall 314 having a top surface spaced apart from the outer ring wall 311 and a partition wall 316 protruding from a top surface of the water retaining wall 312 and connected to an inner circumferential surface of the inner ring wall 314. The outer circumferential wall 311 is disposed on the inner circumferential surface of the water retaining wall 312 and has two upper and lower extension holes 317 extending into the top surface thereof. The water retaining wall 312 has a plurality of water inlet holes 313 penetrating vertically and eccentrically. The inner ring wall 314 is surrounded by the outer water inlet hole 313, and the inner space is partitioned by the partition wall 316 into two partitions facing upward and different in volume, and is respectively connected to the partitioning section 310 of the partial water inlet hole 313. The cover 33 is capped and fixed to the inner ring wall 314 by the opening of the partitioning portion 310. The inner ring wall 314 is radially disposed to respectively connect the plurality of partitioning sections 310 and the water inlet space. The side openings 315 of 30, so that the water entering the partition sections 310 via the water inlet holes 313 is laterally injected into the water inlet space 30.

In the present embodiment, the water retaining wall 312 has three water inlet holes 313, wherein the smaller volume interval section 310 is only connected to one water inlet hole 313, and the larger volume partition section 310 is two inlets. The water holes 313 are in communication, but in practice, the number of the water inlet holes 313 through which the partitions 310 of different volume sizes are connected is not limited to the above.

As shown in FIGS. 2, 3, and 4, the spray guide 32 is located at the retaining wall 33. The upper portion has a hollow tubular shaft tube portion 321 which is coaxially arranged in the base portion 31, and a plurality of fan-shaped blocks radially protruding from the axial center of the shaft tube portion 321 to the outer peripheral surface of the shaft tube portion 321 The water piece portion 322 and the two card portions 322 are spaced apart from the bottom surface of the two water blocking piece portions 322 and are respectively inserted and inserted into the card insertion portions 323 of the insertion notch 317, and the water blocking piece portions 322 are respectively inserted. The radius is gradually increased in size, that is, the length from the shaft portion 321 protruding outward is sequentially increased.

The adjusting seat 34 is pivotally disposed at a top end of the outer ring wall 311, and has a water spray wall 341 defining a top edge of the water inlet space 30 and pivotable relative to the spray guide 32. The wall 341 has a ring-shaped horizontal wall portion 342 which is disposed outside the shaft tube portion 321 and abuts against the top surface of the water blocking portion 322, and protrudes from the top surface of the horizontal wall portion 342. The annular guide ring portion 344 having a diameter that gradually expands upwardly and a plurality of radially distributed projections on the inner circumferential surface of the horizontal wall portion 342 and abutting against the outer circumferential surface of the shaft tube portion 321 The portion 345 and the two adjacent convex abutting portions 345 cooperate to define a water spray hole 346 penetrating vertically. The bottom surface of the horizontal wall portion 342 is recessed with a plurality of fan-shaped shunting grooves 343 which are arranged in the order of the axis of the shaft tube portion 321 and gradually increase in radius. The radius of the diverting grooves 343 is respectively different from the radius of the water blocking portion 322. Correspondingly, and respectively connected between the water inlet space 30 and a water spray hole 346.

As shown in FIGS. 4, 5, and 6, when the water spray wall 341 is pivoted relative to the spray guide 32, the water blocking portions 322 of the spray guide 32 can be closed in the entire partial flow channel 343, and the closed portion is shunted. The groove 343 is changed, and the closed diverter groove 343 cannot communicate with the water inlet space 30, so the water in the water inlet space 30 cannot pass through the water spray hole 346 that communicates with the closed diversion groove 343. ejection.

As shown in FIGS. 2, 7, and 8, the water volume adjusting unit 4 includes a flow tube 41 coaxially inserted into the base 31, and is coaxially inserted and fixed to the flow tube 41 and extends upwardly and erected. The cover 33 and the transmission shaft 42 of the shaft tube portion 321 and the adjusting member 43 that is sleeved and fixed to the top end portion of the transmission shaft 42 and spaced above the adjusting seat 34 are disposed.

The flow tube 41 has a hollow tubular wall portion 411 which is vertically erected in the outer ring wall 311 and fixed to the bottom end portion of the transmission shaft 42, and a radial protrusion is formed at the top end of the tube wall portion 411. The regulating wall portion 412 is superposed on the bottom surface of the water retaining wall 312. The regulating wall portion 412 is provided with a plurality of flow holes 413 respectively corresponding to the water inlet holes 313. When the flow tube 41 is driven, the regulating wall portion 412 pivots relative to the water retaining wall 312 to close all or part of the water inlet hole 313 communicating with one of the partitioning sections 310, or to make the flow rate The holes 413 are each in communication with the water inlet hole 313, thereby adjusting the amount of water entering the partitioning zone 310 via the flow holes 413.

The adjusting member 43 has a coaxial sleeve portion 432 fixed to the top end portion of the transmission shaft 42 and a tapered annular friction wall extending radially outward from the top end of the shaft portion 432 and gradually expanding upward. The portion 431 and a turning portion 433 which is protruded upward from the top surface of the upper friction wall portion 431 and can be inserted into a hand tool (not shown). The shaft portion 432 is pivotally inserted into the shaft tube portion 321 .

As shown in FIGS. 2, 3, and 4, the deflecting spray unit 5 includes a plurality of hollow deflectors 51 that are pivotally disposed outside the shaft portion 432 of the adjusting member 43 and open upwardly, and a set is disposed on the shaft. a portion 432 and stacked on the deflector 51 and the upper surface An elastic brake pad 52 between the wall portions 431, an end cover 53 to which the lower cover is fixed above the deflector 51, and a plug cover 54 detachably fitted in the end cover 53.

The deflector 51 has a set of tapered annular lower friction wall portions 511 which are disposed outside the shaft portion 432 and gradually expand upward. The lower friction wall portion 511 abuts against the bottom surface of the brake pad 52 with its tapered top surface which is gradually enlarged upward, and has a radial upwardly inclined and downwardly directed toward the water spray holes 346. a tapered surface 512, the driving cone surface 512 is recessed with a plurality of guiding channels 513 radially spaced around the axis thereof and extending radially outwardly, and the guiding channels 513 respectively have a radial direction The outwardly facing side nozzle 514, the driving cone surface 512 of the lower friction wall portion 511 can be driven by the water sprayed by the water spray holes 346 and pushed upward, and is pinched toward the upper friction wall portion 431. The brake pad 52.

The brake pad 52 is a tapered shape corresponding to the upper friction wall portion 431 and the lower friction wall portion 511, and has a tapered ring shape which gradually expands upward, and has a direct abutment against the upper friction wall portion 431 and The annular first braking section 521 facing the facing surface of the lower friction wall portion 511 and the second braking section 522 protruding radially from the inner circumference of the first braking section 521 and having the upper and lower thicknesses tapered radially inward. By the frictional action between the upper friction wall portion 431 and the lower friction wall portion 511 of the first braking segment 521, the deflector 51 can be provided with a frictional resistance when the liquid water is ejected, and The second brake segment 522 is erected when the impactor drives the pivoting force of the deflector 51 to increase, such that the deflector 51 is moved against the upper friction wall portion 431 to pinch the first brake segment 521. The top and the bottom surface are successively brought into contact with the upper friction wall portion 431 and the lower friction wall portion 511, and The frictional resistance between the three is increased to linearly change the rotational speed of the deflector 51 with respect to the intensity of the water flow.

A plug hole 531 is formed on the top side of the end cover 53 to expose the adjusting portion 433 of the adjusting member 43. The plug cover 54 is inserted into the plug hole 531 by sealing the plug hole 531.

When the rotary sprinkler of the present invention is used, the water from the water supply pipe is injected into the partitions 310 through the correspondingly connected flow holes 413 and the water inlet holes 313, and then through the side openings 315. The water inlet space 30 is injected. Then, the water liquid flows into the diverting grooves 343 which are connected to each other, and the driving cone surface 512 which impacts the deflector 51 is sprayed upward from the corresponding communicating water holes 346, respectively, and enters the spiral above. The extending guide channel 513 further drives the deflector 51 to rotate relative to the adjusting member 43, and the rotating deflector 51 separates the water flowing in the guiding channels 513 from the side nozzles. 514 is laterally scooped out to form a spiral spray water stream. During the rotation of the deflector 51, the frictional resistance formed by the brake pad 52 between the friction wall portion 511 and the friction wall portion 431 above the adjusting member 43 under the deflector 51 causes the deflector 51 approaches a fixed speed rotation.

As shown in FIGS. 3, 7, and 8, when it is necessary to adjust the amount of water sprayed, the plug cover 54 can be detached from the plug hole 531 of the end cover 53 and the turning portion 433 of the adjusting member 43 can be driven by a hand tool. The flow tube 41 is pivoted relative to the base 31 via the transmission shaft 42 to change the communication relationship between the flow holes 413 of the adjustment wall portion 412 and the water inlet holes 313. For example, the flow holes 413 can be made. Correspondingly communicating with the water inlet hole 313 communicating with the partition sections 310, the water liquid is simultaneously injected into the partition sections 310, or only a part of the flow holes are made. 413 is in communication with the water inlet hole 313 connected to one of the partitioning sections 310, and the remaining water inlet hole 313 is shielded by the regulating wall portion 412, thereby regulating the flow rate of the water entering the water inlet space 30, and changing the amount of water discharged and The impact force of the deflector 51 is driven.

In addition, when the flow rate is increased, so that the flow of water ejected from the water spray holes 346 is increased, the force that the deflector 51 is pushed upward toward the brake pad 52 is also enhanced, and the lower friction wall portion 511 is further enhanced. And the upper friction wall portion 431 elastically squeezing and deforming the first brake segment 521 to start frictional contact with the top and bottom surfaces of the second brake segment 522, respectively, to improve frictional resistance, thereby enabling the deflector 51 to When the rotational speed is controlled within a predetermined range, there is no case where the high-speed uncontrolled rotation occurs due to the large impact force of the ejected water.

As shown in FIGS. 3, 5, and 6, when the spray angle range is to be adjusted, that is, when the spray range of the rotary sprinkler is to be limited to a predetermined angle range, the base 31 can be rotated. Adjusting the seat 34, and changing the water blocking piece 322 of the spray guide 32 to block the relationship of closing the diverter grooves 343, so that the water blocking pieces 322 block the cover portion of the diverting groove 343, so that the The water in the water space 30 can only be injected into the unshielded splitter 343, and is sprayed upward from the correspondingly communicating spray hole 346 into the guide channel 513 above it, while the deflector 51 is rotating. Spraying outwards, since the water guiding liquid is only injected through the guiding channel 513 above the water spraying hole 346 which sprays the water liquid, the spraying angle range of the water liquid can be effectively adjusted, and when the spraying angle range is adjusted, Then, according to the predetermined sprinkling area, the column is relatively adjusted so that the sprayed water falls in the predetermined sprinkling area.

In this embodiment, the block is covered on the inner ring wall 314 of the base 31. The purpose of the cover 33 is to allow the water to flow into the water inlet space 30 from the side of the partitioning section 310, and directly enter the gap between the water blocking piece portion 322 and the outer circumference of the water distributing groove 343. In the splitter groove 343, the retaining wall 33 is not necessary.

In summary, the structural design of the spray direction adjusting unit 3, the water amount adjusting section unit 4 and the deflecting spray unit 5 is such that the rotary sprinkler is designed in addition to the two-stage brake structure of the brake pad 52. The frictional resistance between the deflector 51, the brake pad 52 and the adjusting member 43 is linearly related to the intensity of the water jet sprayed by the water spray holes 346, so that the deflector 51 can be kept constant at a predetermined time. In the range of speed, there is no high-speed uncontrolled rotation due to the increase of water flow intensity, which can improve the stability of spray water flow. In addition, by adjusting the adjusting member 43 to change the communication and the blocking relationship between the flow tube 41 and the water inlet holes 313 of the base 31, the amount of water sprayed can be adjusted and transmitted. Simply adjust the way of adjusting the seat 34, quickly adjust the range of water spray angle, and have the advantages of good spray water flow, and can adjust the spray water volume and spray angle range and other advantages and functions, which is quite convenient and practical. Therefore, the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

3‧‧‧ spray direction adjustment unit

30‧‧‧Intake space

31‧‧‧ Pedestal

310‧‧‧Separation interval

311‧‧‧ outer ring wall

312‧‧ ‧ water retaining wall

313‧‧‧ water inlet

314‧‧‧ Inner Ring Wall

315‧‧‧ side opening

316‧‧‧ partition wall

317‧‧‧Insert gap

32‧‧‧ spray guide

321‧‧‧ shaft tube department

322‧‧‧Water Stops

323‧‧‧Card Department

33‧‧ ‧ cover

34‧‧‧Tune to the seat

341‧‧‧ spray wall

342‧‧‧ horizontal wall

343‧‧ ‧Diversion trough

344‧‧‧Drainage ring

345‧‧‧Protection

346‧‧‧spray hole

4‧‧‧Water volume adjustment unit

41‧‧‧Flow tube

411‧‧‧ wall section

412‧‧‧ Adjusting the wall

413‧‧‧ flow hole

42‧‧‧ drive shaft

43‧‧‧Adjustment

431‧‧‧Upper friction wall

432‧‧‧ shaft part

433‧‧‧Transfer Department

5‧‧‧ biased spray unit

51‧‧‧Spreader

511‧‧‧ Lower friction wall

512‧‧‧ drive cone

513‧‧‧ Diversion channel

514‧‧‧ side spout

52‧‧‧ brake pads

521‧‧‧First braking section

522‧‧‧second braking section

53‧‧‧End cover

531‧‧‧ 塞孔

54‧‧‧Segai

1 is a perspective view of a preferred embodiment of a rotary sprinkler of the present invention; FIG. 2 is a perspective exploded view of the preferred embodiment; Figure 3 is a side elevational cross-sectional view of the preferred embodiment; Figure 4 is a partial perspective exploded view of the preferred embodiment; Figure 5 is a bottom cross-sectional view of the preferred embodiment, and illustrates a spray guide Figure 6 is a view similar to Figure 5, and illustrates the relative angular position of the spray guide when only a splitter is not shielded; Figure 7 is a preferred embodiment A planar exploded top view of a pedestal and a flow tube, and illustrating a relative angular position of the flow tube of the flow tube corresponding to the respective separation intervals; and FIG. 8 is a view similar to FIG. 7 and illustrating The flow tube only has a relative angular position when one of the flow holes communicates with one of the separation sections.

3‧‧‧ spray direction adjustment unit

31‧‧‧ Pedestal

310‧‧‧Separation interval

311‧‧‧ outer ring wall

312‧‧ ‧ water retaining wall

313‧‧‧ water inlet

314‧‧‧ Inner Ring Wall

315‧‧‧ side opening

316‧‧‧ partition wall

317‧‧‧Insert gap

32‧‧‧ spray guide

321‧‧‧ shaft tube department

322‧‧‧Water Stops

33‧‧ ‧ cover

34‧‧‧Tune to the seat

341‧‧‧ spray wall

342‧‧‧ horizontal wall

344‧‧‧Drainage ring

345‧‧‧Protection

346‧‧‧spray hole

4‧‧‧Water volume adjustment unit

41‧‧‧Flow tube

411‧‧‧ wall section

412‧‧‧ Adjusting the wall

413‧‧‧Flow tube

42‧‧‧ drive shaft

43‧‧‧Adjustment

431‧‧‧Upper friction wall

432‧‧‧ shaft part

433‧‧‧Transfer Department

5‧‧‧ biased spray unit

51‧‧‧Spreader

511‧‧‧ Lower friction wall

513‧‧‧ Diversion channel

514‧‧‧ side spout

52‧‧‧ brake pads

521‧‧‧First braking section

522‧‧‧second braking section

53‧‧‧End cover

531‧‧‧ 塞孔

54‧‧‧Segai

Claims (8)

A rotary sprinkler adapted to be assembled at a top end of a pipe string and connected to a top end of a water supply pipe disposed in the pipe string, the rotary sprinkler comprising: a spray direction adjusting unit, comprising a a base at the top of the tubular string, a spray guide coaxially fixed in the base, and a pivoting seat pivotally pivoted relative to the spray guide member above the base, and the base and the adjustment Defining a water inlet space to the seat, the base has a water retaining wall defining a bottom edge of the water inlet space and a plurality of water inlet holes penetrating through the upper and lower sides, and the spray guide is fixed at the The water inlet space has a shaft tube portion that is standing upright, and a plurality of water blocking piece portions that are radially protruded from the axis of the shaft tube portion and are radially protruded from the outer circumferential surface of the shaft tube portion, and the water blocking sheets The protruding radius of the portion is in a decreasing order, and the adjusting seat has an annular water spray wall defining a top edge of the water inlet space and pivotingly disposed on the shaft tube portion, the water spray wall being stacked Above the water blocking piece portion, and having a plurality of intervals concavely disposed on the bottom surface thereof and spaced around the shaft tube portion and respectively separable a water collecting block for blocking the blocking of the water piece portion, and a plurality of water spraying holes which are vertically penetrated and communicate with the dividing flow grooves respectively for respectively discharging the liquid liquid in the corresponding dividing groove; the water quantity adjusting unit includes one a coaxial plug-in is disposed at the base and is located below the water retaining wall for mounting to the flow pipe of the water supply pipe, coaxially fixed to the flow pipe and pivoted upwardly to the base and the spray guide a transmission shaft, and an adjusting member mounted on the top end of the transmission shaft and located above the adjustment seat to pivot the flow tube, the flow tube The utility model has a regulating wall portion which is located below the water retaining wall and is provided with a plurality of flow holes respectively correspondingly distributed with the water inlet holes, and the adjusting wall portion is pivotable relative to the water retaining wall to block the blocking a part of the water inlet hole, the adjusting member has a tapered ring-shaped upper friction wall portion which gradually expands upward; and a biasing spray unit, comprising a set of outer portion which is disposed outside the shaft portion and gradually expands upwardly a resiliently soft brake pad on the bottom surface of the upper friction wall portion, and a deflector that is relatively vertically and pivotally sleeved on the shaft portion, the deflector having a space below the upper friction wall portion And a taper ring-shaped lower friction wall portion that gradually expands upwardly, the lower friction wall portion has a driving cone surface that receives the water liquid sprayed upwardly from the water spray holes, and the driving cone surface is concavely disposed a plurality of radial distributions and spirally extending radially outward along the taper thereof, and the drainage liquid is radially ejected from the diversion channel, and the lower friction wall portion can be ejected by the water jets of the water jet holes The brake pad is pressed against the upper and lower friction wall portions. The rotary sprinkler of claim 1, wherein the base further has a ring wall fixed to the outer periphery of the water retaining wall and pivotally connected to the adjusting seat, and a coaxial protrusion is disposed on the retaining water a top surface of the wall and located radially inward of the outer ring wall and surrounding the inner ring wall surrounded by the water inlet holes, and a portion protruding from the top surface of the water retaining wall and connected to the inner circumference of the inner ring wall a partition wall, the partition wall cooperates with the inner ring wall to define a two-phase interval and an opening portion that communicates with the water inlet space and has a different volume, and the partitioning sections are respectively connected to different water inlet holes, and the flow rate is respectively connected to the water inlet hole The tube is coaxially disposed on the inner circumferential surface of the outer ring wall, and can be pivoted by the transmission shaft to shield the wall portion from the water inlet hole of one of the separation sections, or the flow holes are simultaneously connected Pass through the inlet holes. The rotary sprinkler of claim 2, wherein the spray direction adjusting unit further comprises a cover that is fixed to the inner ring wall and the partition wall to close the openings of the partitions, the inner ring wall A plurality of side openings that are radially penetrated to allow the separation sections to communicate with the water inlet space, respectively. The rotary sprinkler of claim 2 or 3, wherein the inner circumferential surface of the outer ring wall is recessed with an insertion notch extending upwardly to a top edge thereof, and the spray guide member further has a protruding portion A card portion fixed to the insertion notch is inserted into the bottom surface of the water blocking piece portion and downwardly. The rotary sprinkler of claim 2 or 3, wherein the water spray wall of the adjustment seat has a horizontal wall portion spaced around the shaft tube portion, a top surface of the horizontal wall portion, and an inner diameter An annular flow guiding ring portion that gradually expands in a radial direction and a plurality of convex portions that are radially spaced around the axial tube portion and protrude from the inner circumferential surface of the horizontal wall portion and respectively abut against the outer circumferential surface of the shaft tube portion The abutting portion and the two adjacent convex portions cooperate to define a water spray hole. The rotary sprinkler of claim 1, wherein the brake pad has a first braking section that abuts against a bottom surface of the upper friction wall and a top surface of the lower friction wall, and a diameter a second annular braking section that protrudes from the inner circumference of the first braking section and gradually decreases in thickness radially inward and downward, the upper friction wall portion and the lower friction wall portion can be used for the first braking section After the upper and lower faces are pinched and deformed, the upper and lower facing faces are gradually pressed against the second braking segment. The rotary sprinkler of claim 1, wherein the adjusting member further has a frictional downwardly extending from the upper friction wall portion through the brake pad and the lower friction The wall portion is sleeved and fixed to the upright shaft portion of the transmission shaft, and a turning portion protruding upward from the top surface of the upper friction wall portion for driving the shaft portion, the deflecting spray unit further comprises a An end cap is disposed on the upper portion of the deflector, and the end cap has a plug hole that penetrates up and down to expose the top end of the turning portion. The rotary sprinkler of claim 7, wherein the deflecting spray unit further comprises a detachable plug that closes the plug.