A greenhouse planting drip irrigation equipment and method thereof

Abstract

The present application belongs to the technical field of drip irrigation equipment, and discloses a greenhouse planting drip irrigation equipment and method, which solves the problem of reduced water absorption efficiency of plants due to the setting of the drip irrigation head at the position close to the soil at the root of the plants, and comprises a base, a vertical support plate is installed at the top end of the base, a plant drip irrigation assembly is arranged on the front surface of the vertical support plate, the plant drip irrigation assembly comprises a circular box, a bottom pipe is fixedly arranged at the bottom end of the circular box, and a bottom drip irrigation piece is arranged in the bottom pipe; an insertion driving piece is arranged in the circular box, a water inlet pipe is installed at one side of the top end of the circular box, a communication groove is formed in the middle of the bottom end of the circular box, and the communication groove penetrates into the inside of the bottom pipe. The first conical head at the bottom end of the movable pipe can be inserted into the soil, so that the plant root system under the soil can be drip irrigated through the first water outlet hole on the first conical head after water inlet, water evaporation is effectively reduced, and the irrigation effect is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of drip irrigation equipment, and particularly relates to a drip irrigation equipment for greenhouse planting and a method thereof. BACKGROUND

[0002] Drip irrigation is to drip water and nutrients required by crops (such as tomato plants) into the soil through a pipeline system and waterers installed on the pipes according to the water requirement of the crops, so that the water, fertilizer, air and heat inside the soil are always kept in a good condition suitable for the growth of the crops, thereby promoting the growth of the plants.

[0003] Since the drip irrigation head is arranged at the position close to the soil at the root of the plant, water is dripped on the soil surface after being discharged, so that the water is easily evaporated, the water absorption of the plant is reduced, the water absorption efficiency of the plant is decreased, and water resources are wasted. SUMMARY

[0004] In view of the above problems, the present application provides a drip irrigation equipment for greenhouse planting and a method thereof, which effectively solves the problem that the drip irrigation head is arranged at the position close to the soil at the root of the plant, so that the water absorption efficiency of the plant is reduced.

[0005] To achieve the above object, the present application provides the following technical scheme: a drip irrigation equipment for greenhouse planting, comprising a base, a vertical support plate is arranged at the top end of the base, and a plant drip irrigation assembly is arranged on the front surface of the vertical support plate.

[0006] The plant drip irrigation assembly comprises a circular box, a bottom pipe is fixedly arranged at the bottom end of the circular box, a bottom drip irrigation piece is arranged in the bottom pipe, the bottom drip irrigation piece is used for inserting into the soil to drip irrigation, an insertion driving piece is arranged in the circular box, the insertion driving piece is used for driving the bottom drip irrigation piece to insert into the soil by water pressure, a water inlet pipe is arranged at one side of the top end of the circular box, a communication groove is formed in the middle of the bottom end of the circular box, and the communication groove penetrates into the inside of the bottom pipe.

[0007] The bottom drip irrigation part includes a sealing ring movably mounted inside the bottom tube, a movable tube is mounted at the bottom end of the sealing ring, and a first conical head is mounted on the bottom end of the movable tube, the first conical head is arranged to be conical, and a first water outlet hole is opened at an equal angle on the first conical head, and a bottom protection part is arranged on the outer side of the first conical head; a bottom groove is opened at the bottom end of the bottom tube, the inner diameter of the bottom groove is smaller than the diameter of the sealing ring, the outer wall of the sealing ring is tightly contacted with the inner wall of the bottom tube, the bottom end of the sealing ring is fixedly mounted with a first spring, and the bottom end of the first spring is fixedly connected to the inner bottom wall of the bottom tube; the insertion drive part includes a rotating block coaxially mounted inside the circular box, a first baffle and a second baffle are mounted on the outer side of the rotating block, the outer wall of the first baffle and the outer wall of the second baffle are both tightly contacted with the inner wall of the circular box, a sliding rod is eccentrically mounted on the front of the rotating block, a semi-ring guide groove is opened on the front of the circular box, the sliding rod is slidably mounted on the inner side of the semi-ring guide groove, and an upward adjustment part is installed between the rotating block and the vertical support plate;

[0008] A longitudinal guide groove is provided on the front side of the bottom tube, a sliding block is slidably installed on the inner side of the longitudinal guide groove, the sliding block is fixedly connected to the sealing ring, a fixed shaft is installed on the front side of the sliding block and the front side of the sliding rod, a connecting rod is provided between the two fixed shafts, and both ends of the connecting rod are rotatably connected to the two fixed shafts respectively.

[0009] Preferably, the bottom protection member includes a second conical head installed on the outside of the first conical head, a limiting ring is installed on the outside of the first conical head, the second conical head is rotatably connected to the limiting ring, guide rods are symmetrically installed on both sides of the second conical head, and a second water outlet is opened at an equal angle on the second conical head, and the second water outlet is staggered with the first water outlet.

[0010] Preferably, an annular groove is provided on the outer wall of the bottom tube, a gear ring is rotatably installed on the inner side of the annular groove, guide blocks are symmetrically installed on both sides of the gear ring, and two guide rods are slidably installed on the inner sides of the two guide blocks respectively.

[0011] Preferably, the front face of the gear ring is meshedly connected with a top gear, a screw barrel is installed on the top gear, the bottom end of the screw barrel is rotatably installed on a fixed platform, the fixed platform is fixedly installed on the outer wall of the bottom tube, the inner thread of the screw barrel is installed with a screw, the top end of the screw is installed with a top plate, two limit rods are symmetrically installed at the bottom end of the top plate, the limit rods are slidably connected to the fixed platform, a second spring is symmetrically installed at the bottom end of the top plate, and the bottom end of the second spring is fixedly connected to the fixed platform.

[0012] Preferably, the upward adjustment member includes a slider symmetrically installed on the back of the circular box, the slider is slidably installed inside the slide groove, the slide groove is symmetrically opened on the vertical support plate, the bottom wall of the slider is in contact with the inner bottom wall of the slide groove, a rack is installed on the front of the vertical support plate, a rotating shaft is coaxially installed on the back of the rotating block, the rotating shaft is rotatably connected to the circular box, a back gear is provided on the back of the rotating shaft, and a fixing cylinder is provided between the rotating shaft and the back gear.

[0013] Preferably, the fixed cylinder is fixedly installed at one end of the rotating shaft, a sliding plate is slidably installed in the fixed cylinder, a connecting rod is installed on the sliding plate, one end of the connecting rod is coaxially and fixedly connected with the back gear, a third spring is symmetrically installed on the side of the sliding plate away from the rotating block, one end of the third spring is fixedly connected with the inner wall of the fixed cylinder, a magnetic block is installed on the sliding plate, and an electromagnet is installed on the inner wall of the end of the fixed cylinder close to the rotating block.

[0014] Preferably, the working steps of the drip irrigation method of the drip irrigation equipment for greenhouse planting are as follows:

[0015] S1, water enters the inside of the circular box at the water inlet pipe, the rotating block is pushed to rotate, the movable pipe is pushed to move downward through the connecting rod, and the first conical head is inserted into the soil;

[0016] S2, after the sliding block moves downward along the longitudinal guide groove, the screw rod is pushed to move downward, the second conical head is driven to rotate to the position corresponding to the first water outlet hole through the top gear and the toothed ring, so that water can be discharged to irrigate the underground part of the plant;

[0017] S3, the electromagnet is powered on to make the back gear engage with the rack, and when the rotating block rotates, the movable pipe extends downward, and the circular box moves upward along the sliding groove, so that the first conical head remains on the ground to irrigate the aboveground part of the plant.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] 1) In work, the rotating block is rotated under the action of water inlet pressure, and the movable pipe is pushed to move downward along the longitudinal guide groove through the connecting rod, so that the first conical head at the bottom end of the movable pipe can be inserted into the soil, so that after water is inlet, the plant root system under the soil can be drip irrigated through the first water outlet hole on the first conical head, water evaporation is effectively reduced, and irrigation effect is improved;

[0020] 2) In work, the second conical head is arranged on the outer side of the first conical head, the first water outlet hole on the first conical head and the second water outlet hole on the second conical head are staggered, so as to avoid soil from entering the first water outlet hole and causing blockage when the first conical head is inserted into the soil, and after the movable pipe moves downward, the screw rod is pushed to move downward to drive the second conical head to rotate, so that after the first conical head is inserted into the soil, the first water outlet hole is rotated to the position corresponding to the second water outlet hole, facilitating water outlet irrigation;

[0021] 3) in the work, the repulsion is generated to the magnetic block by the energization of the set electromagnet, the back gear is engaged with the rack, when the plant aboveground part needs to be irrigated, the rotating block rotates, under the action of the back gear and the rack, the first conical head extends downward and the circular box moves upward, so that the first conical head does not insert into the soil, the device can irrigate the plant aboveground part and the plant underground part. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the application, and do not limit the application.

[0023] In the drawings:

[0024] Figure 1 It is a greenhouse planting drip irrigation equipment structure schematic view of the application;

[0025] Figure 2 It is a plant drip irrigation assembly structure schematic view of the application;

[0026] Figure 3 It is a bottom drip irrigation piece structure schematic view of the application;

[0027] Figure 4 It is a circular box structure schematic view of the application;

[0028] Figure 5 It is a second conical head structure schematic view of the application;

[0029] Figure 6 It is a top gear and tooth ring connection structure schematic view of the application;

[0030] Figure 7 It is a vertical support plate structure schematic view of the application;

[0031] Figure 8 It is an upward adjustment piece structure schematic view of the application;

[0032] Figure 9 It is a fixed cylinder internal structure schematic view of the application.

[0033] In the figure: 1, base; 2, vertical support plate; 3, plant drip irrigation assembly; 301, circular box; 302, bottom pipe; 303, water inlet pipe; 304, communication groove; 305, bottom drip irrigation piece; 3051, bottom groove; 3052, movable pipe; 3053, sealing ring; 3054, first spring; 3055, first conical head; 3056, first water outlet hole; 306, insertion driving piece; 3061, rotating block; 3062, first baffle; 3063, second baffle; 3064, sliding rod; 3065, half-ring guide groove; 3066, longitudinal guide groove; 3067, sliding block; 3068, fixed shaft; 3069, connecting rod; 307, bottom protection piece; 3071, limiting ring; 3072, second conical head; 3073, second water outlet hole; 3074, guide rod; 3075, tooth ring; 3076, guide block; 3077, annular groove; 3078, fixed table; 3079, screw cylinder; 30710, top gear; 30711, screw rod; 30712, top plate; 30713, limiting rod; 30714, second spring; 308, upward adjustment piece; 3081, sliding block; 3082, sliding groove; 3083, rack; 3084, rotating shaft; 3085, back gear; 3086, fixed cylinder; 3087, sliding plate; 3088, connecting rod; 3089, third spring; 30810, magnetic block; 30811, electromagnet. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] By Figures 1 to 9 The present application relates to a kind of greenhouse planting drip irrigation equipment, including base 1, the top of base 1 is installed with vertical support plate 2, the front of vertical support plate 2 is provided with plant drip irrigation assembly 3.

[0036] Plant drip irrigation assembly 3 includes circular box 301, the bottom of circular box 301 is fixedly provided with bottom pipe 302, the inside of bottom pipe 302 is provided with bottom drip irrigation piece 305, bottom drip irrigation piece 305 is used to insert soil and drip irrigation, the inside of circular box 301 is provided with insertion driving piece 306, insertion driving piece 306 is used to push bottom drip irrigation piece 305 to insert soil with water pressure as driving force, the top of circular box 301 one side is installed with water inlet pipe 303, the bottom of circular box 301 middle part is opened with communication groove 304, communication groove 304 penetrates to the inside of bottom pipe 302.

[0037] The bottom drip irrigation part 305 comprises a sealing ring 3053 movably installed inside the bottom pipe 302, a movable pipe 3052 is installed at the bottom end of the sealing ring 3053, a first conical head 3055 is installed at the bottom end of the movable pipe 3052, the first conical head 3055 is arranged in a conical shape, a first water outlet hole 3056 is equiangularly arranged on the first conical head 3055, a bottom protection part 307 is arranged on the outer side of the first conical head 3055, a bottom groove 3051 is arranged at the bottom end of the bottom pipe 302, the inner diameter of the bottom groove 3051 is smaller than the diameter of the sealing ring 3053, the outer wall of the sealing ring 3053 is tightly attached to the inner wall of the bottom pipe 302, a first spring 3054 is fixedly installed at the bottom end of the sealing ring 3053, and the bottom end of the first spring 3054 is fixedly connected to the inner bottom wall of the bottom pipe 302.

[0038] The insertion driving part 306 comprises a rotating block 3061 coaxially and rotatably installed inside the circular box 301, a first baffle 3062 and a second baffle 3063 are installed on the outer side of the rotating block 3061, the outer wall of the first baffle 3062 and the outer wall of the second baffle 3063 are tightly attached to the inner wall of the circular box 301, a sliding rod 3064 is eccentrically installed on the front surface of the rotating block 3061, a semi-ring guide groove 3065 is arranged on the front surface of the circular box 301, the sliding rod 3064 is slidably installed inside the semi-ring guide groove 3065, an upward adjusting part 308 is installed between the rotating block 3061 and the vertical support plate 2, a longitudinal guide groove 3066 is arranged on the front surface of the bottom pipe 302, a sliding block 3067 is slidably installed inside the longitudinal guide groove 3066, the sliding block 3067 is fixedly connected to the sealing ring 3053, a fixed shaft 3068 is installed on the front surface of the sliding block 3067 and the front surface of the sliding rod 3064, a connecting rod 3069 is arranged between the two fixed shafts 3068, the two ends of the connecting rod 3069 are rotatably connected to the two fixed shafts 3068, the rotating block 3061 rotates under the action of water inlet pressure and pushes the movable pipe 3052 to move downward along the longitudinal guide groove 3066 through the connecting rod 3069, so that the first conical head 3055 at the bottom end of the movable pipe 3052 can be inserted into the soil, so that the plant roots under the soil can be drip irrigated through the first water outlet hole 3056 on the first conical head 3055 after water inlet, water evaporation is effectively reduced, and irrigation effect is improved.

[0039] The bottom protection piece 307 comprises a second conical head 3072 mounted outside the first conical head 3055, the outside of the first conical head 3055 is mounted with a limiting ring 3071, the second conical head 3072 is rotationally connected with the limiting ring 3071, two sides of the second conical head 3072 are symmetrically mounted with guide rods 3074, the second conical head 3072 is equally angularly provided with a second water outlet hole 3073, the second water outlet hole 3073 is staggered with the first water outlet hole 3056, an annular groove 3077 is provided on the outer wall of the bottom pipe 302, a gear ring 3075 is rotationally mounted on the inner side of the annular groove 3077, the gear ring 3075 is symmetrically mounted with guide blocks 3076 on two sides, the two guide rods 3074 are respectively slidingly mounted on the inner sides of the two guide blocks 3076, a top gear 30710 is meshingly connected to the front of the gear ring 3075, a screw cylinder 3079 is mounted on the top gear 30710, the bottom end of the screw cylinder 3079 is rotationally mounted on a fixed table 3078, the fixed table 3078 is fixedly mounted on the outer wall of the bottom pipe 302, a screw rod 30711 is screwedly mounted on the inner side of the screw cylinder 3079, a top plate 30712 is mounted on the top end of the screw rod 30711, two limiting rods 30713 are symmetrically mounted on the bottom end of the top plate 30712, the limiting rods 30713 are slidingly connected with the fixed table 3078, a second spring 30714 is symmetrically mounted on the bottom end of the top plate 30712, the bottom end of the second spring 30714 is fixedly connected with the fixed table 3078, the outside of the first conical head 3055 is provided with the second conical head 3072, the first water outlet hole 3056 on the first conical head 3055 is staggered with the second water outlet hole 3073 on the second conical head 3072, so as to avoid the soil from entering the first water outlet hole 3056 and causing blockage when being inserted into the soil, after the movable pipe 3052 moves downward, the screw rod 30711 is driven to move downward to drive the second conical head 3072 to rotate, so that the first conical head 3055 is rotated to the position corresponding to the first water outlet hole 3056 and the second water outlet hole 3073 after being inserted into the soil, thereby facilitating water irrigation.

[0040] The upward adjustment member 308 includes a slider 3081 symmetrically mounted on the back of the circular box 301, the slider 3081 is slidably mounted inside the slide groove 3082, the slide groove 3082 is symmetrically opened on the vertical support plate 2, the bottom wall of the slider 3081 contacts the inner bottom wall of the slide groove 3082, the front of the vertical support plate 2 is mounted with a rack 3083, the back of the rotating block 3061 is coaxially mounted with a rotating shaft 3084, the rotating shaft 3084 is rotatably connected to the circular box 301, the back of the rotating shaft 3084 is provided with a back gear 3085, a fixed cylinder 3086 is provided between the rotating shaft 3084 and the back gear 3085, the fixed cylinder 3086 is fixedly mounted on one end of the rotating shaft 3084, a sliding plate 3087 is slidably mounted inside the fixed cylinder 3086, a connecting rod 3088 is mounted on the sliding plate 3087, and one end of the connecting rod 3088 is connected to the back gear 3085 Coaxially fixedly connected, a third spring 3089 is symmetrically installed on one side of the sliding plate 3087 away from the rotating block 3061, one end of the third spring 3089 is fixedly connected to the inner wall of the fixed cylinder 3086, a magnetic block 30810 is installed on the sliding plate 3087, and an electromagnet 30811 is installed on the inner wall of one end of the fixed cylinder 3086 close to the rotating block 3061. When the electromagnet 30811 is energized, a repulsive force is generated on the magnetic block 30810, so that the back gear 3085 is engaged with the rack 3083. When it is necessary to irrigate the aboveground part of the plant, the rotating block 3061 rotates, and under the action of the back gear 3085 and the rack 3083, the first conical head 3055 extends downward while the circular box 301 moves upward, so that the first conical head 3055 will not be inserted into the soil, so that the equipment can irrigate both the aboveground part and the underground part of the plant.

[0041] Working principle: When greenhouse planting is carried out, the drip irrigation equipment is set on one side of each plant, and the water inlet pipe 303 is connected to the main water pipe through a hose to facilitate water input for drip irrigation. In the original state, the first baffle 3062 and the second baffle 3063 are respectively located on the side where the water inlet pipe 303 and the connecting groove 304 are away from each other. When water enters the interior of the circular box 301 from the water inlet pipe 303, it impacts one side of the first baffle 3062, pushing the rotating block 3061 to rotate, so that the sliding rod 3064 moves along the semi-annular guide groove 3065. When the sliding rod 3064 moves from the top end of the semi-annular guide groove 3065 to the bottom end of the semi-annular guide groove 3065, the first baffle 3062 and the sliding rod 3064 on the rotating block 3061 move to the same side of the water inlet pipe 303 and the connecting groove 304, so that the subsequent incoming water can pass through the circular box 301 and the connecting groove 304 into the bottom pipe 302;

[0042] When the plant root is drip irrigated in order to reduce water evaporation, the rotating block 3061 is rotated during the water inlet process until the water inlet pipe 303 is communicated with the communication groove 304, in this process, the rotating block 3061 rotates to drive the sliding rod 3064 to move along the semi-ring guide groove 3065, and then the sliding block 3067 is pushed to move downward along the longitudinal guide groove 3066 by the connecting rod 3069 between the two fixed shafts 3068, so as to push the movable pipe 3052 to move downward, so that the first conical head 3055 is inserted into the soil downward, so that water can directly enter the soil to drip irrigate the root system, effectively reducing water evaporation;

[0043] During the insertion of the first conical head 3055 into the soil, the second conical head 3072 is installed outside the first conical head 3055, and the second water outlet hole 3073 is staggered with the first water outlet hole 3056, so as to avoid the soil entering the first water outlet hole 3056 during the insertion into the soil to cause blockage, after the sliding block 3067 contacts the top plate 30712, the screw rod 30711 is pushed to move downward, and the screw rod 30711 is threadedly connected with the screw cylinder 3079, so as to drive the top gear 30710 to rotate, and the top gear 30710 is engaged with the tooth ring 3075, so as to drive the tooth ring 3075 to rotate by a certain angle, so that the second water outlet hole 3073 on the second conical head 3072 is moved to the corresponding position of the first water outlet hole 3056 on the first conical head 3055, so as to facilitate water dripping irrigation;

[0044] When it is necessary to drip irrigate the aboveground part of the plant, the staff electrifies the electromagnet 30811, so that the electromagnet 30811 generates repulsion to the magnetic block 30810, pushes the back gear 3085 to move towards one side of the vertical support plate 2, so that the back gear 3085 is engaged with the rack 3083, when the rotating block 3061 rotates due to water inlet, the circular box 301 itself moves upward along the sliding groove 3082 during the downward movement of the first conical head 3055, so that the first conical head 3055 will not be inserted into the soil, so as to drip irrigate the aboveground part of the plant, and facilitate drip irrigation at different positions.

[0045] It should be noted that, in the present text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0046] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A drip irrigation device for use in a greenhouse, comprising a base, characterized in that: The top end of the base is provided with a vertical support plate, and the front surface of the vertical support plate is provided with a plant drip irrigation assembly; The plant drip irrigation assembly comprises a circular box, and a bottom pipe is fixedly arranged at the bottom end of the circular box, and a bottom drip irrigation piece is arranged in the bottom pipe for inserting into soil for drip irrigation; An insertion driving piece is arranged in the circular box, and the insertion driving piece is used to drive the bottom drip irrigation piece to insert into soil by water pressure, a water inlet pipe is arranged at one side of the top end of the circular box, and a communication groove is arranged in the middle of the bottom end of the circular box and penetrates into the inside of the bottom pipe; The bottom drip irrigation piece comprises a sealing ring movably arranged in the bottom pipe, an active pipe is arranged at the bottom end of the sealing ring, a first conical head is arranged at the bottom end of the active pipe, the first conical head is arranged in a conical shape, a first water outlet hole is arranged on the first conical head at equal angles, and a bottom protection piece is arranged on the outside of the first conical head; A bottom groove is arranged at the bottom end of the bottom pipe, the inner diameter of the bottom groove is smaller than the diameter of the sealing ring, the outer wall of the sealing ring is tightly attached to the inner wall of the bottom pipe, a first spring is fixedly arranged at the bottom end of the sealing ring, and the bottom end of the first spring is fixedly connected to the inner bottom wall of the bottom pipe; the insertion driving piece comprises a rotating block coaxially and rotatably arranged in the circular box, a first baffle and a second baffle are arranged on the outside of the rotating block, the outer wall of the first baffle and the outer wall of the second baffle are tightly attached to the inner wall of the circular box, a sliding rod is eccentrically arranged on the front surface of the rotating block, a semi-ring guide groove is arranged on the front surface of the circular box, the sliding rod is slidably arranged in the inside of the semi-ring guide groove, and an upward adjusting piece is arranged between the rotating block and the vertical support plate; A longitudinal guide groove is arranged on the front surface of the bottom pipe, a sliding block is slidably arranged in the inside of the longitudinal guide groove, the sliding block is fixedly connected to the sealing ring, a fixed shaft is arranged on the front surface of the sliding block and the front surface of the sliding rod, a connecting rod is arranged between the two fixed shafts, and the two ends of the connecting rod are rotatably connected to the two fixed shafts.

2. The drip irrigation equipment for greenhouse planting according to claim 1, characterized in that: The bottom protection piece comprises a second conical head arranged on the outside of the first conical head, a limiting ring is arranged on the outside of the first conical head, the second conical head is rotatably connected to the limiting ring, guide rods are symmetrically arranged on the two sides of the second conical head, second water outlet holes are arranged on the second conical head at equal angles, and the second water outlet holes are arranged alternately with the first water outlet holes.

3. The drip irrigation equipment for greenhouse planting according to claim 2, characterized in that: An annular groove is arranged on the outer wall of the bottom pipe, a gear ring is rotatably arranged in the inside of the annular groove, guide blocks are symmetrically arranged on the two sides of the gear ring, and the two guide rods are slidably arranged in the inside of the two guide blocks.

4. The drip irrigation equipment for greenhouse planting according to claim 3, characterized in that: A top gear is meshingly connected to the front surface of the gear ring, a screw cylinder is arranged on the top gear, the bottom end of the screw cylinder is rotatably arranged on a fixed table, the fixed table is fixedly arranged on the outer wall of the bottom pipe, a screw rod is threadedly arranged in the inside of the screw cylinder, a top plate is arranged at the top end of the screw rod, two limiting rods are symmetrically arranged at the bottom end of the top plate, the limiting rods are slidably connected to the fixed table, second springs are symmetrically arranged at the bottom end of the top plate, and the bottom ends of the second springs are fixedly connected to the fixed table.

5. The drip irrigation equipment for greenhouse planting according to claim 4, characterized in that: The upper moving adjusting piece comprises sliding blocks symmetrically mounted on the back of the circular box, the sliding blocks are slidingly mounted in sliding grooves symmetrically arranged on the vertical support plates, the bottom wall of the sliding block is in contact with the inner bottom wall of the sliding groove, the front surface of the vertical support plate is provided with a rack, the back surface of the rotating block is coaxially provided with a rotating shaft, the rotating shaft is rotationally connected with the circular box, the back surface of the rotating shaft is provided with a back gear, and a fixing cylinder is arranged between the rotating shaft and the back gear.

6. The drip irrigation equipment for greenhouse planting according to claim 5, characterized in that: The fixing cylinder is fixedly mounted on one end of the rotating shaft, a sliding plate is slidingly mounted in the fixing cylinder, a connecting rod is mounted on the sliding plate, one end of the connecting rod is fixedly connected with the back gear in a coaxial manner, a third spring is symmetrically mounted on the side of the sliding plate away from the rotating block, one end of the third spring is fixedly connected with the inner wall of the fixing cylinder, a magnetic block is mounted on the sliding plate, and an electromagnet is mounted on the inner wall of the end of the fixing cylinder close to the rotating block.

7. A method for drip irrigation of a greenhouse, using a drip irrigation apparatus for a greenhouse according to claim 6, characterized in that, The method comprises the following steps: S1, water is introduced into the interior of the circular box through the water inlet pipe, the rotating block is pushed to rotate, the movable pipe is pushed to move downward through the connecting rod, and the first conical head is inserted into the soil; S2, after the sliding block moves downward along the longitudinal guide groove, the screw rod is pushed to move downward, the second conical head is driven to rotate to the position corresponding to the first water outlet hole through the top gear and the gear ring, so that water can be discharged to irrigate the underground part of the plant; S3, the electromagnet is powered on to make the back gear mesh with the rack, when the rotating block rotates, the movable pipe extends downward, and the circular box moves upward along the sliding groove, so that the first conical head remains in the ground to irrigate the aboveground part of the plant.

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