CN113951019A

CN113951019A - Big-arch shelter sprinkler of large tracts of land even formula watering

Info

Publication number: CN113951019A
Application number: CN202111304241.1A
Authority: CN
Inventors: 杨国; 谢云梦; 孟庆庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-01-21

Abstract

The invention provides a greenhouse sprinkler for uniformly sprinkling water in a large area, which relates to the technical field of sprinklers and aims to solve the problems that when the existing greenhouse sprinkler is used, a spray rod vibrates violently due to unstable running of a sliding frame, the sprinkling effect of an atomizing nozzle is influenced, meanwhile, the vibration amplitude is large when the sliding frame runs, larger noise can be generated, in addition, the heights of crops in a greenhouse are different, and the actual height adjustment of the spray rod and the atomizing nozzle is difficult, and comprises a support frame rod; the support frame rods are rectangular square rods which are distributed in a vertical mode, and walking beams are arranged on one sides of the two support frame rods. According to the invention, power is provided by the second motor, the worm drives the worm gear to rotate, and the worm gear and the lead screw are used for transmission, so that the lead screw slides up and down, and the lifting frame floats up and down along with the lead screw, therefore, the actual height adjustment can be carried out on the spray rod and the atomizing nozzle according to the height of crops in the greenhouse, the use and the operation are convenient, and the structure is more reasonable.

Description

Big-arch shelter sprinkler of large tracts of land even formula watering

Technical Field

The invention belongs to the technical field of spraying devices, and particularly relates to a greenhouse spraying device capable of uniformly spraying water in a large area.

Background

Agricultural greenhouses are frame-coated structures with excellent heat preservation properties, the appearance of which allows people to eat out-of-season vegetables. In the greenhouse planting process, water needs to be sprayed on crops to ensure the growth environment of the crops.

For example, application No.: the invention of CN201810810722.1 relates to a greenhouse spraying device, which is arranged inside a greenhouse and the like, and is used for spraying water to adjust humidity or supplying nutrient solution to crops, and the device comprises: a pipe in which sprayed water or nutrient solution flows, the upper surface of the pipe being formed with a plurality of holes spaced at intervals; a nozzle module coupled to an upper side of the pipe in a manner corresponding to each hole of the pipe; and the lower combination body is combined on the lower side of the pipeline and connected with the nozzle module so as to fix the nozzle module, and the pipeline is made of stainless steel materials and has stronger durability.

Current big-arch shelter sprinkler is when using, and the carriage drives spray lance and atomizer and sprays the in-process, because the carriage operation is stable inadequately, leads to the spray lance to vibrate acutely, influences atomizer watering effect, and the carriage operation vibration range is big simultaneously, can produce great noise, and carriage connection structure is complicated moreover, and it is more troublesome to dismantle with the installation, and crops height differs in the big-arch shelter in addition, hardly carries out actual altitude mixture control to spray lance and atomizer.

Disclosure of Invention

In order to solve the technical problems, the invention provides a greenhouse spraying device capable of uniformly spraying water in a large area, and aims to solve the problems that when the existing greenhouse spraying device is used, a sliding frame drives a spraying rod and an atomizing nozzle to spray water, the spraying rod vibrates violently due to insufficient stability of the sliding frame in the spraying process, the sprinkling effect of the atomizing nozzle is influenced, the vibration amplitude is large when the sliding frame runs, larger noise can be generated, the connecting structure of the sliding frame is complex, the disassembly and the installation are more troublesome, and in addition, the heights of crops in a greenhouse are different, and the actual height adjustment of the spraying rod and the atomizing nozzle is difficult.

The invention relates to a greenhouse sprinkler capable of uniformly sprinkling water in a large area, which has the purpose and the effect and is achieved by the following specific technical means:

a greenhouse sprinkler capable of uniformly sprinkling water in a large area comprises a support frame rod; the support frame rods are rectangular square rods which are vertically distributed, and one side of each support frame rod is provided with a walking beam, and the two walking beams are distributed in a parallel mode; two adjusting frames are arranged at the tops of the two walking beams, a first motor is arranged at the top of the adjusting frame at the top of the left walking beam, a sliding frame is arranged below the adjusting frames, and the sliding frame is positioned at the bottom of the walking beam; a mounting frame is arranged between the sliding frames, a second motor is arranged at the top of the mounting frame, a lifting frame is arranged below the mounting frame, the lifting frame and the mounting frame are distributed in a parallel mode, and a spray rod is arranged below the lifting frame; a control box is fixedly arranged between the two support frame rods, and a rubber tube is arranged between the two walking beams.

Furthermore, the adjusting frame comprises connecting bolts and pulleys, the adjusting frame is of a rectangular frame structure, the adjusting frame is sleeved at the top of the walking beam, two groups of pulleys are rotatably installed in the adjusting frame through shaft rods, the adjusting frame is in rolling connection with the walking beam through the pulleys, two connecting bolts are arranged at the bottom of one side of the adjusting frame, and the connecting bolts are connected with the sliding frame.

Further, the carriage includes connecting sleeve and stop nut, and the carriage slip suit is in walking beam bottom, and carriage top one side is equipped with two connecting sleeve, and the connecting sleeve top is equipped with stop nut, and stop nut and connecting sleeve tip rotate to be connected.

Furthermore, when the sliding frame is connected with the adjusting frame, the connecting bolt is inserted into the connecting sleeve, the connecting bolt penetrates through the limiting nut, and the limiting nut is connected with the connecting bolt in a sliding mode through threads.

Further, first motor includes first bull stick, second bull stick, first belt and second belt, and first bull stick and second bull stick set up between two alignment brackets, and first bull stick and second bull stick all are connected with the axostylus axostyle of two sets of pulleys, and the pivot of first bull stick and first motor corresponds the position and is equipped with the band pulley to connect through first belt drive, the axostylus axostyle tip of the two sets of pulleys in right side is equipped with the band pulley, and connects through second belt drive.

Further, the mounting bracket includes connecting plate and bearing housing, and the mounting bracket left and right sides is equipped with the connecting plate, and the connecting plate constitutes "worker" style of calligraphy structure with the mounting bracket to connecting plate both ends and carriage fixed connection, mounting bracket top intermediate position are equipped with the bearing housing, and the bearing housing is located second motor one side.

Further, the second motor includes worm and worm wheel, and the pivot tip of second motor is equipped with the worm, and worm one side is equipped with the worm wheel to the worm wheel is connected with the worm meshing, and the worm wheel bottom is equipped with the rotation central siphon, and the worm wheel rotates through rotating central siphon and bearing housing to be connected.

Further, the lifting frame includes slide bar, backup pad, lead screw, support column and fixed cover, and lifting frame top is equipped with two slide bars, and two slide bars are the symmetric mode and distribute, and slide bar top fixed mounting has the backup pad, and the backup pad distributes with the lifting frame parallel mode about being, and is equipped with the lead screw between backup pad and the lifting frame, and lifting frame top left and right sides is equipped with the support column, and two support columns are the symmetric mode and distribute, and lifting frame bottom is equipped with two fixed covers, and the lifting frame is through fixed cover and spray lance fixed connection.

Further, when the lifting frame is connected with the mounting bracket, the two sliding rods slide to penetrate through the mounting bracket, the screw rod penetrates through the bearing sleeve and the worm wheel, and the worm wheel is connected with the screw rod in a sliding mode through threads.

Further, the spray lance includes atomizer, haulage rope and communicating pipe, evenly installs atomizer on the spray lance, and atomizer and spray lance communicate with each other, is equipped with two haulage ropes on the spray lance, and two haulage rope tip and support column fixed connection, is equipped with two communicating pipes on the spray lance, and the spray lance communicates with each other through communicating pipe and rubber tube.

Compared with the prior art, the invention has the following beneficial effects:

1. the device is powered by a first motor, is driven by a first belt and a first rotating rod, a group of pulleys on the rear side rotate, and is driven by a second belt, so that a second rotating rod drives a group of pulleys on the front side to rotate, an adjusting frame and a sliding frame can slide along a walking beam, and through arranging the adjusting frame and the sliding frame at four positions, the swinging or vibration amplitude of a spray rod below is reduced in the sliding process, so that the atomizing nozzle is more stable in spraying;

2. when the sliding frame and the adjusting frame are in a connecting state, the connecting bolt is inserted into the connecting sleeve and penetrates through the limiting nut, and the limiting nut is in sliding connection with the connecting bolt in a threaded mode, so that the connecting structure of the sliding frame and the adjusting frame is simple, the sliding frame and the adjusting frame are convenient to mount and dismount, and meanwhile, the height between the sliding frame and the adjusting frame is adjusted by rotating the limiting nut, so that the vibration amplitude between the adjusting frame and the sliding frame can be reduced, and the noise is reduced;

3. when lifting frame and mounting bracket are connected state, the slide bar of two places slides and runs through the mounting bracket, the lead screw runs through bearing housing and worm wheel, and the worm wheel passes through threaded mode and lead screw sliding connection, provide power through the second motor, it is rotatory to drive the worm wheel by the worm, utilize worm wheel and screw drive, make the lead screw slide from top to bottom, thereby the lifting frame follows the lead screw and carries out the fluctuation, consequently can be according to the height of crops in the big-arch shelter, carry out actual altitude mixture control to spray lance and atomizer, its use convenient operation, the structure is more reasonable.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic axial view of the present invention.

FIG. 2 is a schematic view of the connection state of the walking beam, the adjusting frame and the sliding frame.

Fig. 3 is a schematic view of the structure of the adjusting bracket, the sliding bracket and the first motor of the invention.

Fig. 4 is a schematic structural view of fig. 3 with the walking beam removed.

Fig. 5 is a schematic view of the structure of the adjusting bracket separated from the sliding bracket according to the present invention.

FIG. 6 is a schematic view of the mounting bracket, lift bracket and spray bar configuration of the present invention.

Fig. 7 is a schematic view of the structure from fig. 6 with the spray bar removed.

Fig. 8 is a schematic structural view of the lifting frame in fig. 7 after the lifting frame is removed.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a support frame rod; 2. a walking beam; 3. an adjusting bracket; 301. a connecting bolt; 302. a pulley; 4. a carriage; 401. a connecting sleeve; 402. a limit nut; 5. a first motor; 501. a first rotating lever; 502. a second rotating rod; 503. a first belt; 504. a second belt; 6. a mounting frame; 601. a connecting plate; 602. a bearing housing; 7. a second motor; 701. a worm; 702. a worm gear; 8. a lifting frame; 801. a slide bar; 802. a support plate; 803. a screw rod; 804. a support pillar; 805. fixing a sleeve; 9. a spray rod; 901. an atomizing spray head; 902. a hauling rope; 903. a communicating pipe; 10. a hose; 11. and a control box.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides a greenhouse spraying device capable of uniformly spraying water in a large area, which comprises a support frame rod 1; the support frame rods 1 are rectangular square rods which are vertically distributed, the walking beams 2 are arranged on one sides of the two support frame rods 1, and the two walking beams 2 are distributed in a parallel mode; two adjusting frames 3 are arranged at the tops of the two walking beams 2; the top of the adjusting frame 3 at the top of the left walking beam 2 is provided with a first motor 5; a sliding frame 4 is arranged below the adjusting frame 3, and the sliding frame 4 is positioned at the bottom of the walking beam 2; a mounting frame 6 is arranged between the sliding frames 4; the mounting frame 6 comprises a connecting plate 601 and a bearing sleeve 602, the connecting plate 601 is arranged on the left side and the right side of the mounting frame 6, the connecting plate 601 and the mounting frame 6 form an I-shaped structure, two ends of the connecting plate 601 are fixedly connected with the sliding frame 4, the bearing sleeve 602 is arranged in the middle of the top of the mounting frame 6, and the bearing sleeve 602 is positioned on one side of the second motor 7; a lifting frame 8 is arranged below the mounting frame 6, the lifting frame 8 and the mounting frame 6 are distributed in a parallel mode, and a spray rod 9 is arranged below the lifting frame 8; the spray rod 9 comprises atomizing nozzles 901, traction ropes 902 and communicating pipes 903, the atomizing nozzles 901 are uniformly arranged on the spray rod 9, the atomizing nozzles 901 are communicated with the spray rod 9, two traction ropes 902 are arranged on the spray rod 9, the end parts of the two traction ropes 902 are fixedly connected with a support column 804, two communicating pipes 903 are arranged on the spray rod 9, and the spray rod 9 is communicated with a rubber pipe 10 through the communicating pipes 903; a control box 11 is fixedly arranged between the two support frame rods 1, and a rubber tube 10 is arranged between the two walking beams 2.

As shown in fig. 3 and 4, the adjusting frame 3 includes connecting bolts 301 and pulleys 302, the adjusting frame 3 is a rectangular frame structure, the adjusting frame 3 is sleeved on the top of the walking beam 2, two groups of pulleys 302 are rotatably mounted in the frame of the adjusting frame 3 through shaft rods, the adjusting frame 3 is in rolling connection with the walking beam 2 through the pulleys 302, two connecting bolts 301 are arranged at the bottom of one side of the adjusting frame 3, and the connecting bolts 301 are connected with the sliding frame 4;

the first motor 5 comprises a first rotating rod 501, a second rotating rod 502, a first belt 503 and a second belt 504, the first rotating rod 501 and the second rotating rod 502 are arranged between the two adjusting frames 3, the first rotating rod 501 and the second rotating rod 502 are both connected with the shaft rods of the two groups of pulleys 302, the first rotating rod 501 is provided with a belt wheel at the position corresponding to the rotating shaft of the first motor 5 and is in transmission connection with the first belt 503, the shaft rod end parts of the two groups of pulleys 302 at the right side are provided with belt wheels and are in transmission connection with the second belt 504, the device is powered by the first motor 5, the first belt 503 and the first rotating rod 501 are used for transmission, the group of pulleys 302 at the rear side rotate and are used for transmission with the second belt 504, so that the second rotating rod 502 drives the group of pulleys 302 at the front side to rotate, the adjusting frames 3 and the sliding frames 4 can slide along the walking beam 2, and through the four adjusting frames 3 and the sliding frames 4, in the sliding process, the amplitude of the swing or vibration of the lower spray rod 9 is reduced.

As shown in fig. 5, the sliding frame 4 includes a connecting sleeve 401 and a stop nut 402, the sliding frame 4 is slidably sleeved at the bottom of the walking beam 2, two connecting sleeves 401 are arranged on one side of the top of the sliding frame 4, the stop nut 402 is arranged at the top end of the connecting sleeve 401, and the stop nut 402 is rotatably connected with the end of the connecting sleeve 401.

When carriage 4 is connected state with alignment jig 3, connecting bolt 301 pegs graft in connecting sleeve 401, and connecting bolt 301 runs through stop nut 402, and stop nut 402 passes through threaded mode and connecting bolt 301 sliding connection, therefore, it is seen that carriage 4 is simple with alignment jig 3 connection structure, and it is convenient that its installation and dismantlement are through rotating stop nut 402, adjusts the height between carriage 4 and the alignment jig 3 simultaneously, can reduce the vibration range between alignment jig 3 and the carriage 4.

As shown in fig. 6 and 7, the second motor 7 includes a worm 701 and a worm wheel 702, the end of the rotating shaft of the second motor 7 is provided with the worm 701, one side of the worm 701 is provided with the worm wheel 702, the worm wheel 702 is meshed with the worm 701 and connected, the bottom of the worm wheel 702 is provided with a rotating shaft tube, and the worm wheel 702 is rotatably connected with the bearing sleeve 602 through the rotating shaft tube;

lifting frame 8 includes slide bar 801, the backup pad 802, lead screw 803, support column 804 and fixed cover 805, lifting frame 8 top is equipped with two slide bars 801, and two slide bars 801 are the symmetric mode and distribute, and slide bar 801 top fixed mounting has backup pad 802, backup pad 802 and lifting frame 8 are parallel mode and distribute from top to bottom, and be equipped with lead screw 803 between backup pad 802 and the lifting frame 8, the 8 top left and right sides of lifting frame is equipped with support column 804, and two support columns 804 are the symmetric mode and distribute, lifting frame 8 bottom is equipped with the fixed cover 805 in two places, and lifting frame 8 is through fixed cover 805 and spray lance 9 fixed connection.

When the lifting frame 8 and the mounting frame 6 are in a connection state, two sliding rods 801 slidably penetrate through the mounting frame 6, the screw rod 803 penetrates through the bearing sleeve 602 and the worm wheel 702, the worm wheel 702 is slidably connected with the screw rod 803 in a threaded manner, power is provided through the second motor 7, the worm 701 drives the worm wheel 702 to rotate, and the worm wheel 702 and the screw rod 803 are used for transmission, so that the screw rod 803 slides up and down, the lifting frame 8 follows the screw rod 803 to float up and down, and therefore the actual height of the spray rod 9 and the atomizing spray head 901 can be adjusted according to the height of crops in the greenhouse.

In another embodiment, the connecting bolt 301 is sleeved with a compression spring, and the compression spring is supported between the adjusting frame 3 and the limiting nut 402, so that the adjusting frame 3 and the sliding frame 4 slide more stably along the walking beam 2 by using the buffering action of the compression spring, and the generation of noise is further reduced.

The specific use mode and function of the embodiment are as follows:

in the use process, firstly, a first motor 5 provides power, the power is transmitted through a first belt 503 and a first rotating rod 501, a rear group of pulleys 302 rotate, the power is transmitted through a second belt 504, so that a second rotating rod 502 drives a front group of pulleys 302 to rotate, an adjusting frame 3 and a sliding frame 4 can slide along a walking beam 2, and the swing or vibration amplitude of a lower spray rod 9 is reduced in the sliding process through the arrangement of four adjusting frames 3 and four sliding frames 4;

secondly, when the sliding frame 4 is connected with the adjusting frame 3, the connecting bolt 301 is inserted in the connecting sleeve 401, the connecting bolt 301 penetrates through the limiting nut 402, and the limiting nut 402 is in sliding connection with the connecting bolt 301 in a threaded manner, so that the sliding frame 4 and the adjusting frame 3 are simple in connecting structure, convenient to mount and dismount, and capable of reducing the vibration amplitude between the adjusting frame 3 and the sliding frame 4 by adjusting the height between the sliding frame 4 and the adjusting frame 3 by rotating the limiting nut 402;

in addition, when the lifting frame 8 and the mounting frame 6 are in a connection state, two sliding rods 801 slidably penetrate through the mounting frame 6, the screw rod 803 penetrates through the bearing sleeve 602 and the worm wheel 702, the worm wheel 702 is slidably connected with the screw rod 803 in a threaded manner, power is provided through the second motor 7, the worm 701 drives the worm wheel 702 to rotate, and the worm wheel 702 and the screw rod 803 are utilized for transmission, so that the screw rod 803 slides up and down, the lifting frame 8 follows the screw rod 803 to float up and down, and therefore the actual height of the spray rod 9 and the atomizing spray head 901 can be adjusted according to the height of crops in the greenhouse.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a big-arch shelter sprinkler of watering of large tracts of land even formula which characterized in that: a greenhouse sprinkler capable of uniformly sprinkling water in a large area comprises a support frame rod;

the support frame rods are rectangular square rods which are vertically distributed, and one side of each support frame rod is provided with a walking beam, and the two walking beams are distributed in a parallel mode;

two adjusting frames are arranged at the tops of the two walking beams, a first motor is arranged at the top of the adjusting frame at the top of the left walking beam, a sliding frame is arranged below the adjusting frames, and the sliding frame is positioned at the bottom of the walking beam;

a mounting frame is arranged between the sliding frames, a second motor is arranged at the top of the mounting frame, a lifting frame is arranged below the mounting frame, the lifting frame and the mounting frame are distributed in a parallel mode, and a spray rod is arranged below the lifting frame;

a control box is fixedly arranged between the two support frame rods, and a rubber tube is arranged between the two walking beams.

2. The greenhouse sprinkler of large area uniform sprinkling, according to claim 1, wherein the adjusting bracket comprises connecting bolts and pulleys, the adjusting bracket is a rectangular frame structure, and the adjusting bracket is sleeved on the top of the walking beam, two sets of pulleys are rotatably installed in the adjusting bracket frame through shaft rods, and the adjusting bracket is in rolling connection with the walking beam through the pulleys, two connecting bolts are arranged at the bottom of one side of the adjusting bracket, and the connecting bolts are connected with the sliding bracket.

3. The greenhouse sprinkler of claim 2, wherein the carriage includes a connection sleeve and a stop nut, the carriage is slidably mounted on the bottom of the walking beam, and two connection sleeves are provided on one side of the top of the carriage, and the stop nut is provided on the top of the connection sleeve and rotatably connected to the end of the connection sleeve.

4. The greenhouse sprinkler of claim 3, wherein the connection bolt is inserted into the connection sleeve when the sliding frame is connected to the adjustment frame, the connection bolt extends through the stop nut, and the stop nut is slidably connected to the connection bolt by a thread.

5. The greenhouse sprinkler of large area and uniform sprinkling, according to claim 1, wherein the first motor comprises a first rotating rod, a second rotating rod, a first belt and a second belt, the first rotating rod and the second rotating rod are disposed between the two adjusting frames, and both the first rotating rod and the second rotating rod are connected with the shaft rods of the two sets of pulleys, the first rotating rod is provided with a belt wheel corresponding to the rotating shaft of the first motor and is connected with the rotating shaft through the first belt, and the shaft rod ends of the two sets of pulleys on the right side are provided with a belt wheel and are connected with the rotating shaft through the second belt.

6. The greenhouse sprinkler of claim 1, wherein the mounting bracket comprises a connecting plate and a bearing sleeve, the connecting plate is disposed on the left and right sides of the mounting bracket, the connecting plate and the mounting bracket form an I-shaped structure, the two ends of the connecting plate are fixedly connected to the sliding bracket, the bearing sleeve is disposed at the middle position of the top of the mounting bracket, and the bearing sleeve is disposed on one side of the second motor.

7. The greenhouse sprinkler of large area and uniform sprinkling, according to claim 6, wherein the second motor comprises a worm and a worm wheel, the end of the rotating shaft of the second motor is provided with the worm, the worm wheel is arranged on one side of the worm, the worm wheel is meshed with the worm, the bottom of the worm wheel is provided with a rotating shaft tube, and the worm wheel is rotatably connected with the bearing sleeve through the rotating shaft tube.

8. The greenhouse sprinkler of large area uniform sprinkling, as claimed in claim 1, wherein the lifting frame comprises a slide bar, a support plate, a screw bar, a support post and a fixing sleeve, two slide bars are provided at the top of the lifting frame, and the two slide bars are symmetrically distributed, and a support plate is fixedly mounted at the top end of the slide bar, the support plate and the lifting frame are vertically distributed in parallel, and the screw bar is provided between the support plate and the lifting frame, the support post is provided at the left and right sides of the top end of the lifting frame, and the two support posts are symmetrically distributed, two fixing sleeves are provided at the bottom end of the lifting frame, and the lifting frame is fixedly connected with the spray bar through the fixing sleeves.

9. The greenhouse sprinkler of claim 8, wherein when the lifting frame is coupled to the mounting frame, two slide rods slidably extend through the mounting frame, the lead screw extends through the bearing housing and the worm gear, and the worm gear is threadably slidably coupled to the lead screw.

10. The greenhouse sprinkler of large area and uniform sprinkling as claimed in claim 8, wherein the spray bar comprises atomizer, drag rope and communicating tube, the atomizer is uniformly installed on the spray bar and is communicated with the spray bar, two drag ropes are installed on the spray bar, and the ends of the two drag ropes are fixedly connected with the support column, two communicating tubes are installed on the spray bar, and the spray bar is communicated with the rubber tube through the communicating tubes.