WO2018023954A1 - 一种灌溉伸缩式出水桩 - Google Patents

一种灌溉伸缩式出水桩 Download PDF

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Publication number
WO2018023954A1
WO2018023954A1 PCT/CN2017/070810 CN2017070810W WO2018023954A1 WO 2018023954 A1 WO2018023954 A1 WO 2018023954A1 CN 2017070810 W CN2017070810 W CN 2017070810W WO 2018023954 A1 WO2018023954 A1 WO 2018023954A1
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Prior art keywords
valve core
water outlet
water
assembly
hole
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PCT/CN2017/070810
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English (en)
French (fr)
Inventor
王俊清
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盐城玉欣电动科技有限公司
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Priority claimed from CN201610611860.8A external-priority patent/CN106234157A/zh
Priority claimed from CN201610830932.8A external-priority patent/CN107810833A/zh
Application filed by 盐城玉欣电动科技有限公司 filed Critical 盐城玉欣电动科技有限公司
Publication of WO2018023954A1 publication Critical patent/WO2018023954A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00—Watering gardens, fields, sports grounds or the like

Definitions

  • the invention relates to the technical field of agricultural irrigation, and relates to a water discharge pile which adopts a telescopic manner to realize entering and leaving the ground.
  • the present invention aims to meet the needs of agricultural production in this respect and overcome the above deficiencies, and provides a novel and reliable solution in the field of agricultural irrigation technology: an irrigation telescopic water discharge pile.
  • Irrigation telescopic water discharge pile comprising a water pipe joint, a main assembly, a plurality of active pipe assemblies and a water outlet nozzle assembly; the inner diameters of the plurality of active pipe assemblies are successively decreased, and each stage of the movable pipe assembly Divided into a large hole end and a small hole end, the smaller inner diameter of the movable tube assembly is inserted from the large hole of the larger inner movable tube assembly, and is discharged from the small hole end of the larger inner diameter movable tube assembly.
  • the plurality of active tube assemblies are assembled in sequence, and the small ends of the plurality of movable tube assemblies are discharged from the large hole end of the main assembly into the small hole end, and the water is installed at the small hole end of the highest level movable pipe assembly.
  • the nozzle assembly is equipped with a water pipe network connector at the large hole end of the main assembly.
  • the plurality of active tubes are always a three-stage activity tube assembly, including a first activity tube assembly, a second activity tube assembly, and a third activity.
  • a pipe assembly the small end of the third movable pipe assembly is inserted from the large hole of the second movable pipe assembly, and after exiting the small hole end of the second movable pipe assembly, the two movable pipe assemblies are small end After entering the large hole end of the first movable pipe assembly, and exiting from the small hole end of the first movable pipe assembly, the small end of the three-stage movable pipe assembly is finally inserted from the main hole of the main assembly, and the small hole ends Install a water outlet nozzle at the small hole end of the third movable pipe assembly, and install a water pipe network connector at the large hole end of the main assembly.
  • the water pipe network connector is a variable diameter joint, and the water inlet end is a small hole end, and the small hole end is machined with an external thread.
  • the main assembly is composed of a main pipe, a first limit cylinder and a first axial seal, and the first limit cylinder has a limited end at one end, the main pipe and the first The limit cylinder is assembled by a bonding process.
  • the first movable tube assembly is composed of a first movable tube, a first piston, a second limiting barrel, a second axial seal, and a first Y shape.
  • Sealing ring set The first movable tube and the first piston and the second limiting barrel are assembled by a bonding process, and the first Y-shaped sealing ring is fitted into the first piston sealing groove.
  • the second movable tube assembly is composed of a second movable tube, a second piston, a third limiting barrel, a third axial seal, and a second Y-shaped
  • the sealing ring is composed of a second movable tube and a second piston and a third limiting barrel assembled by a bonding process, and the second Y-shaped sealing ring is fitted into the second piston sealing groove.
  • the third movable tube assembly is composed of a third movable tube, a third piston, and a third Y-shaped sealing ring, and the third movable tube and the third piston are used.
  • the bonding process is assembled, and the third Y-shaped sealing ring is fitted into the third piston sealing groove.
  • the water outlet nozzle assembly is composed of a pressure-sensing water outlet nozzle and a water outlet nozzle, and the pressure-sensing water outlet nozzle passes through the water outlet nozzle joint and the third activity
  • the pressure sensing type water outlet nozzle comprises a water outlet pile cover, a valve core and a valve core pressure plate;
  • the water discharge pile cover has a valve core guiding hole, and the valve core pressure plate has a valve inserted into the valve a connecting cylinder in the core guiding hole, and a water outlet penetrating at the top of the valve core pressing plate and the cavity of the connecting cylinder, the valve core is inserted at the tail of the connecting cylinder, and the valve core pressing plate and the valve core a water passage is formed in the valve core, and a through hole communicating with the water outlet channel is defined in the outer wall of the connecting cylinder, and the water outlet passage communicates with the cavity of the connecting cylinder and the water outlet to form a water passage;
  • the valve core is
  • the valve core is an inverted T-shaped valve core, and the small end of the inverted T-shaped valve core is inserted at a tail portion of the connecting cylinder;
  • the water outlet passage is provided at On the small end of the inverted T-shaped valve core, the water outlet channel is a T-shaped water outlet channel, including a spool axial water outlet hole and a spool radial water inlet hole, and a valve core axial water outlet hole and a connecting barrel cavity Connected, and the spool is axially effluent
  • the hole is a blind hole.
  • the inverted T-shaped valve core is further provided with a water seal, and the small end of the inverted T-shaped valve core is sleeved with a water seal and inserted into the connecting barrel. Tail.
  • valve core pressure plate and the valve core are fixedly connected by glue, and after the glue is connected, the valve core is hydraulically driven to drive the valve core pressure plate in the axial direction of the valve core guide hole. motion.
  • the valve core pressure plate when the valve core pressure plate is at the downward limit, the radial inlet holes of the valve core are all exposed in the water outlet pile cover, and the water outlet outlet water; the valve core pressure plate When the soil is wetted by water, it will loosen, and the pressure on the pressure plate of the valve core will gradually decrease. The valve core will drive the pressure plate of the valve core to gradually rise. When the pressure plate of the valve core is fully extended out of the ground, the earth pressure will disappear and the valve core will be pressurized by water pressure. When it reaches the limit, the radial inlet holes of the valve core all enter the valve core guide hole to stop the water.
  • the water outlet pile cover is internally threaded, and one end of the water outlet nozzle is machined with an external thread, and the water outlet pile cover and the water outlet joint are passed through
  • the external thread and the internal thread are cooperatively connected to realize the connection between the pressure-sensing water outlet nozzle and the water outlet nozzle joint; the other end of the water outlet nozzle joint is inserted into the small end of the third movable tube assembly by a bonding process.
  • the water pipe joint and the main hole of the main assembly are assembled by a bonding process.
  • the water pipe network connector, the main pipe, the first movable pipe, the second movable pipe, the third movable pipe, the first piston, the second piston, the third piston, and the water outlet are all PVC materials.
  • Another object of the present invention is to provide a water outlet nozzle assembly for the water discharge pile, wherein the water outlet nozzle assembly is composed of a pressure-sensing water outlet nozzle and a water outlet nozzle, and the pressure-sensing water outlet nozzle passes through the a water outlet nozzle joint is connected to the small end of the third movable tube assembly;
  • the pressure sensing type water outlet nozzle comprises a water outlet pile cover, a valve core and a valve core pressure plate; and the water discharge pile cover is provided with a valve core guiding hole
  • the spool pressurizing plate has a connecting barrel inserted into the guiding hole of the valve core, and a water outlet located at a top of the valve core pressing plate and a cavity of the connecting barrel, the valve core being inserted at the tail end of the connecting barrel a valve core plate is integrally connected with the valve core; a water passage is defined in the valve core, and a through hole communicating with the water outlet channel is formed on an outer wall of the connection tube, and the water outlet
  • the valve core is an inverted T-shaped valve core, and the small end of the inverted T-shaped valve core is inserted at a tail portion of the connecting barrel;
  • the water outlet channel is provided at the On the small end of the inverted T-shaped valve core, the water outlet passage is a T-shaped water outlet passage, and includes a spool axial water outlet hole and a radial inlet hole of the valve core, and the axial discharge hole of the valve core communicates with the cavity of the connection cylinder.
  • the axial outflow hole of the spool is a blind hole.
  • the inverted T-shaped valve core is further provided with a water seal, and the small end of the inverted T-shaped valve core is sleeved with a water seal and inserted at the tail of the connecting cylinder.
  • valve core pressure plate and the valve core are fixedly connected by means of glue connection, and after the glue connection, the valve core is hydraulically driven to move the valve core pressure plate in the axial direction of the valve core guide hole.
  • the radial inlet holes of the valve core are all exposed in the water outlet pile cover, and the water outlet outlet water; the soil on the valve core pressure plate is affected by When the water is wet, it will loosen, and the pressure on the pressure plate of the valve core will gradually decrease.
  • the valve core will drive the pressure plate of the valve core to gradually rise.
  • the pressure plate of the valve core is extended to the ground, the earth pressure disappears and the valve core is pushed up to the limit by the water pressure.
  • the radial inlet holes of the valve core all enter the valve core guiding hole to stop the water discharge.
  • the water outlet pile cover is internally threaded, and one end of the water outlet nozzle is machined with an external thread, and the water outlet pile cover and the water outlet joint are passed through
  • the external thread and the internal thread are cooperatively connected to realize the connection between the pressure-sensing water outlet nozzle and the water outlet nozzle joint; the other end of the water outlet nozzle joint is inserted into the small end of the third movable tube assembly by a bonding process.
  • the irrigation telescopic water discharge pile when preparing for farmland cultivation, the ground branch pipe is unscrewed, the water discharge nozzle is attached to the water outlet nozzle, and the irrigation telescopic water discharge pile is pressed to a certain depth in the soil. It does not affect the cultivation; when it is ready for irrigation, the water pump that starts the water pipe network, under the dual action of water pressure and water discharge, the water outlet nozzle of the irrigation telescopic water discharge pile will automatically protrude from the soil, and then the water outlet nozzle is unscrewed , screw the ground branch pipe and the irrigation system to complete the connection.
  • the irrigation telescopic water discharge pile of the invention solves the problem of finding and disassembling the water discharge pile in the irrigation system every year, saves a lot of manpower and material resources, greatly improves the efficiency, and does not damage the crop.
  • the irrigation telescopic water discharge pile of the invention has simple compression operation, self-extension and self-restraint, and reliable performance.
  • the irrigation telescopic water discharge pile of the invention has advanced technology and is convenient for manufacture.
  • the pressure-sensing water outlet of the water-discharging pile of the invention solves the problem of water discharge after the irrigation telescopic water-discharge pile reaches the ground.
  • the pressure-sensing water outlet of the water-discharging pile of the invention has reliable performance, advanced technology and convenient manufacture.
  • FIG. 1 is a schematic structural view of an embodiment of an irrigation telescopic water discharge pile according to the present invention
  • FIG. 2 is a schematic structural view of a third movable tube assembly of the embodiment shown in FIG. 1;
  • Figure 3 is a schematic structural view of the second movable tube assembly of the embodiment shown in Figure 1;
  • Figure 4 is a schematic structural view of the first movable tube assembly of the embodiment shown in Figure 1;
  • Figure 5 is a schematic structural view of the main assembly of the embodiment shown in Figure 1;
  • Figure 6 is a schematic structural view of the water outlet nozzle assembly of the embodiment shown in Figure 1;
  • Figure 7 is a schematic view showing the structure of the water outlet pile cover of the embodiment shown in Figure 6;
  • Figure 8 is a schematic structural view of the valve body of the embodiment shown in Figure 6;
  • FIG. 9 is a schematic structural view of the valve core platen of the embodiment shown in Figure 6;
  • Figure 10 is a schematic view showing the structure of the water outlet joint of the embodiment shown in Figure 1;
  • Figure 11 is a schematic structural view of the water pipe joint of the embodiment shown in Figure 1;
  • Figure 12 is a schematic view showing the structure of the valve core of the embodiment shown in Figure 1 ascending to the limit;
  • Embodiment The irrigation telescopic water discharge pile of the embodiment of the invention as shown in FIG. 1 to FIG. 12 is mainly composed of a water pipe network joint head 1, a main assembly 5, a first movable pipe assembly 6, and a second movable pipe assembly. 4.
  • the third movable pipe assembly 3 and the outlet nozzle assembly are composed of two parts; the second movable pipe assembly 4 small end is inserted from the first movable pipe assembly 6 large hole, and the first movable pipe assembly is 6 small.
  • the small ends of the two movable tube assemblies are discharged from the main hole of the main assembly 5 into the small hole end, and then the water outlet nozzle assembly 2 is installed at the small end of the third movable pipe assembly 3, at the main pipe Install the water pipe network connector 1 on the 5 large hole ends of the assembly.
  • the water pipe network connector 1 is a variable diameter joint, and the water inlet end is a small hole end, and the small hole end is processed with a water pipe mesh joint external thread 11 .
  • the main assembly 5 is composed of a main pipe 51, a first limiting cylinder 52, and a first axial sealing pad 53, and the first limiting cylinder 52 has a limit stop at one end.
  • the main tube 51 and the first limiting barrel 52 are assembled by a bonding process, and the first axial sealing pad 53 is placed between the main tube 51 and the first limiting barrel 52.
  • the first movable tube assembly 6 is composed of a first movable tube 61, a first piston 62, a second limiting barrel 63, a second axial sealing pad 65, and a Y-shaped sealing ring 64, the first movable tube 61 and the first piston 62 and the second limiting barrel 63 are assembled by a bonding process, and the first Y-shaped sealing ring 64 is fitted into the sealing groove of the first piston 62, and the second The axial seal 65 is placed between the first movable tube 61 and the second limit barrel 63.
  • the second movable tube assembly 4 is composed of a second movable tube 41, a second piston 42, a third limiting barrel 43, a third axial seal 45, and a Only the second Y-shaped sealing ring 44 is formed, the second movable tube 41 and the second piston 42 are assembled by a bonding process, and the second Y-shaped sealing ring 44 is fitted into the sealing groove of the second piston 42; the third axial sealing pad 45 It is placed in the second movable tube 41 and the third limiting barrel 43.
  • the third movable tube assembly 3 is composed of a third movable tube 31, a third piston 32, and a third Y-shaped sealing ring 33, and the third movable tube 31
  • the third piston 32 is assembled by a bonding process, and the third Y-shaped seal ring 33 is fitted into the sealing groove of the third piston 32.
  • the water outlet nozzle assembly 2 is composed of a pressure-sensing water outlet nozzle 21 and a water outlet nozzle joint 22, and the pressure-sensing water outlet nozzle 21 passes through the water outlet nozzle joint 22 and
  • the second movable tube assembly 3 is connected at a small end;
  • the pressure-sensing water outlet nozzle comprises a water outlet pile cover 211, an inverted T-shaped valve core 212 and a valve core pressure plate 213;
  • the valve core guide hole 211 is provided with a valve core guiding hole 215
  • the spool press plate 213 has a connecting barrel 2110 inserted into the spool guiding hole 215, and a water outlet 2111 penetrating through the cavity of the connecting barrel 2110 at the top of the spool pressing plate 213, the inverted T
  • the small end 219 of the spool is inserted at the tail of the connecting cylinder 2110, and the spool press plate 213 is integrally connected with the inverted T
  • the hole, the spool axial water outlet 216 communicates with the cavity of the connecting barrel 2110, and the spool axial water outlet 216 is a blind hole.
  • the T-shaped water outlet passage communicates with the cavity of the connecting cylinder 2110 and the water outlet 2111 to form a water flow passage.
  • the direction of the arrow in FIG. 6 indicates the direction of the water flow.
  • the water outlet nozzle assembly further includes a water seal 214.
  • the small end 219 of the T-shaped spool is inserted into the water seal 214 and then inserted into the tail of the connecting cylinder 2110 by means of glue fixing; after the bonding, the inverted T-shaped spool 212 is hydraulically driven to drive the spool pressing plate 213
  • the spool guide bore 215 is axially moved within its upper limit by the inverted T-shaped spool 212.
  • the valve core pressure plate 213 when the valve core pressure plate 213 is under the downward limit, the radial inlet hole 217 of the valve core is completely exposed in the water outlet pile cover 211, and the water outlet 2111 is discharged; The soil on the valve core pressure plate 213 is wetted by water and loosened, and the pressure on the valve core pressure plate 213 is gradually reduced.
  • the inverted T-shaped valve core 212 drives the valve core pressure plate 213 to gradually rise; as shown in FIG. 12, when the valve core pressure plate 213 is fully extended out of the ground, the earth pressure disappears, and the inverted T-shaped valve core 212 is pushed up to the limit by the water pressure.
  • the radial inlet 217 of the spool enters the spool guiding hole 215, and at this time, the outlet passage is completely blocked, and the water is stopped.
  • the water outlet pile cover 211 is internally formed with a cover internal thread 218 , and one end of the water outlet nozzle joint 22 is machined with an external thread 221 , and the water discharge pile cover 211 is formed.
  • the connection between the pressure-sensing water outlet 21 and the water outlet joint 22 is achieved by the external connection of the water outlet nozzle 22 and the internal thread 221, and the other end of the water outlet joint 22 is inserted by a bonding process.
  • the three movable tube assemblies are within the small end of the 3rd.
  • the water pipe network connector 1 and the main assembly 5 large hole end are assembled by a bonding process.
  • the nozzle 21, the first limiting cylinder 52, the second limiting cylinder 43, the water outlet pile cover 211, the valve core 212, and the valve core pressure plate 213 are all made of PVC material.
  • the ground branch pipe when preparing for farmland cultivation, the ground branch pipe is unscrewed, the pressure-sensing water outlet nozzle 21 is attached to the water outlet nozzle joint 22, and the irrigation telescopic water discharge pile is pressed to a certain depth in the soil, and Influencing cultivation; when preparing for irrigation, the water pump of the water pipe network is started.
  • valve core pressure plate of the water outlet nozzle of the irrigation telescopic water discharge pile will automatically protrude from the soil, when the valve core
  • the pressure plate When the pressure plate is pushed up to the limit position by the water pressure, the water outlet hole completely enters the valve core guide hole, the water outlet hole is completely blocked, and the water stops flowing out; this design prevents the water nozzle from leaking out of the ground and the water is not controlled and sprayed; All the spouts are exposed to the ground and then stop the water pump of the water pipe network. After that, the water outlet nozzle is unscrewed, and the irrigation ground branch pipe is connected to the outlet of the water outlet pile, and the irrigation system is connected.

Abstract

一种灌溉伸缩式出水桩，包括水管网连接头（1）、主管总成（5）、若干级活动管总成、出水咀总成（2）。较小内径的活动管总成从较大内径的活动管总成的大孔端入，并从较大内径的活动管总成的小孔端出，依次组装构成若干级活动管总成，再将该若干级活动管总成的小端从主管总成（5）大孔端入小孔端出后，在最高级活动管总成的小孔端装上出水咀总成（2），在主管总成（5）大孔端装上水管网连接头（1）。该灌溉伸缩式出水桩压缩操作简单，伸出自动自如，效率高，性能可靠，工艺先进，便于制造。

Description

一种灌溉伸缩式出水桩 技术领域
本发明涉及农业灌溉技术领域，是一种采取伸缩方式实现进出地面的出水桩。
背景技术
当今，在常年干旱缺水地区的现代化农业生产中，解决农作物用水问题的农田灌溉系统非常重要，出水桩在农田灌溉系统中应用非常普及，但目前使用的出水桩存在两个问题：
1、在用大型农业机械进行耕种作业时，需要将出水桩拆除，拆除时消耗大量人力物力，还要用堵头堵住管网各出水口，拆下来的出水桩还要保管；
2、在需要使用灌溉系统时，先要花很大工夫寻找出水桩精确分布点，找到后，还要消耗大量人力物力挖开泥土，将出水桩安装好，因经常拆装，必有一部分出水桩损坏，并且在寻找和安装过程中还会损坏农作物。
另外，从目前了解的现有在出水桩方面的改进技术中，还找不到一项真正达到实用、安全、可靠且被市场完全接受的技术，所以，目前农业灌溉系统用的出水桩还是公有的老技术。
发明内容
本发明目的在于满足农业生产在此方面的需求并克服以上不足，在农业灌溉技术领域提供一种新颖可靠的解决方案：一种灌溉伸缩式出水桩。
为了实现上述目的，本发明解决其技术问题所采用的技术方案是：这 种灌溉伸缩式出水桩，包括水管网连接头、主管总成、若干级活动管总成以及出水咀总成；所述若干级活动管总成的内径依次递减，且每一级活动管总成均分为大孔端和小孔端，较小内径的活动管总成从较大内经的活动管总成的大孔端入，并从较大内径的活动管总成的小孔端出，依次组装构成若干级活动管总成，再将该若干级活动管总成的小端从主管总成大孔端入小孔端出后，在最高级活动管总成的小孔端装上出水咀总成，在主管总成大孔端装上水管网连接头。
进一步地，在本发明所述的灌溉伸缩式出水桩中，所述的若干级活动管总成为三级活动管总成，包括第一活动管总成、第二活动管总成和第三活动管总成；所述第三活动管总成小端从第二活动管总成大孔端入，从第二活动管总成小孔端出后，再将这两级活动管总成小端从第一活动管总成大孔端入，从第一活动管总成小孔端出后，最后将这三级活动管总成小端从主管总成大孔端入，小孔端出后；在第三活动管总成小孔端装上出水咀总成，在主管总成大孔端装上水管网连接头。
在本发明所述的灌溉伸缩式出水桩中，所述水管网连接头为变径接头，其入水端为小孔端，所述小孔端加工有外螺纹。
在本发明所述的灌溉伸缩式出水桩中，所述主管总成由主管、第一限位筒、第一轴向密封垫组成，第一限位筒一端有限位止口，主管和第一限位筒采用胶接工艺组装。
在本发明所述的灌溉伸缩式出水桩中，所述第一活动管总成由第一活动管、第一活塞、第二限位筒、第二轴向密封垫、一只第一Y形密封圈组 成，第一活动管和第一活塞、第二限位筒采用胶接工艺组装，第一Y形密封圈装到第一活塞密封槽中。
在本发明所述的灌溉伸缩式出水桩中，所述第二活动管总成由第二活动管、第二活塞、第三限位筒、第三轴向密封垫、一只第二Y形密封圈组成，第二活动管和第二活塞、第三限位筒采用胶接工艺组装，第二Y形密封圈装到第二活塞密封槽中。
在本发明所述的灌溉伸缩式出水桩中，所述第三活动管总成由第三活动管、第三活塞、一只第三Y形密封圈组成，第三活动管和第三活塞采用胶接工艺组装，第三Y形密封圈装到第三活塞密封槽中。
在本发明所述的灌溉伸缩式出水桩中，所述出水咀总成由压感式出水咀和出水咀接头组成，所述压感式出水咀通过所述出水咀接头与所述第三活动管总成小端连接；所述压感式出水咀包括出水桩盖、阀芯和阀芯压盘；所述出水桩盖上开设阀芯导向孔，所述阀芯压盘具有插置于阀芯导向孔内的连接筒，以及位于阀芯压盘顶部与所述连接筒的空腔贯通的出水口，所述阀芯插置在所述连接筒的尾部，将阀芯压盘与阀芯连为整体；所述阀芯内开设出水通道，所述连接筒的外壁上开设与所述出水通道连通的通孔，所述出水通道与连接筒的空腔以及出水口连通形成通水流道；受水压作用阀芯带动阀芯压盘沿阀芯导向孔做轴向运动。
在本发明所述的灌溉伸缩式出水桩中，所述阀芯为倒T形阀芯，所述倒T形阀芯的小端插置在所述连接筒的尾部；所述出水通道设于所述倒T形阀芯的小端上，所述出水通道为T形出水通道，包括阀芯轴向出水孔和阀芯径向进水孔，阀芯轴向出水孔与连接筒的空腔连通，且阀芯轴向出水 孔为盲孔。
在本发明所述的灌溉伸缩式出水桩中，所述倒T形阀芯上还设有水封，所述倒T形阀芯的小端套上水封后插置在所述连接筒的尾部。
在本发明所述的灌溉伸缩式出水桩中，所述阀芯压盘与阀芯固定连接方式采用胶接，胶接后阀芯受水压带动阀芯压盘在阀芯导向孔内轴向运动。
在本发明所述的灌溉伸缩式出水桩中，阀芯压盘受土压位于下行极限时，阀芯径向进水孔全部暴露在出水桩盖内，出水口出水；阀芯压盘上的土受水湿润后松动，对阀芯压盘的压力逐渐减小，阀芯带动阀芯压盘逐渐上行；当带动阀芯压盘完全伸出地面后，土压消失，阀芯受水压上行到极限时，阀芯径向进水孔全部进入阀芯导向孔内，停止出水。
在本发明所述的灌溉伸缩式出水桩中，所述出水桩盖内加工有盖内螺纹，所述出水咀接头的一端加工有外螺纹，所述出水桩盖与出水咀接头通过所述的外螺纹和内螺纹配合连接，实现所述压感式出水咀与出水咀接头的连接；所述出水咀接头另一端采用胶接工艺插入第三活动管总成小端内。
在本发明所述的灌溉伸缩式出水桩中，所述水管网连接头与主管总成大孔端采用胶接工艺组装。
在本发明所述的灌溉伸缩式出水桩中，所述水管网连接头、主管、第一活动管、第二活动管、第三活动管、第一活塞、第二活塞、第三活塞、出水咀、第一限位筒、第二限位筒、第三限位筒、出水桩盖、阀芯、阀芯压盘都为PVC材料。
本发明的另一目的是提供一种用于上述出水桩的出水咀总成，所述出水咀总成由压感式出水咀和出水咀接头组成，所述压感式出水咀通过所述 出水咀接头与所述第三活动管总成小端连接；所述压感式出水咀包括出水桩盖、阀芯和阀芯压盘；所述出水桩盖上开设阀芯导向孔，所述阀芯压盘具有插置于阀芯导向孔内的连接筒，以及位于阀芯压盘顶部与所述连接筒的空腔贯通的出水口，所述阀芯插置在所述连接筒的尾部，将阀芯压盘与阀芯连为整体；所述阀芯内开设出水通道，所述连接筒的外壁上开设与所述出水通道连通的通孔，所述出水通道与连接筒的空腔以及出水口连通形成通水流道；受水压作用阀芯带动阀芯压盘沿阀芯导向孔做轴向运动。
本发明所述的出水咀总成中，所述阀芯为倒T形阀芯，所述倒T形阀芯的小端插置在所述连接筒的尾部；所述出水通道设于所述倒T形阀芯的小端上，所述出水通道为T形出水通道，包括阀芯轴向出水孔和阀芯径向进水孔，阀芯轴向出水孔与连接筒的空腔连通，且阀芯轴向出水孔为盲孔。
本发明所述的出水咀总成中，所述倒T形阀芯上还设有水封，所述倒T形阀芯的小端套上水封后插置在所述连接筒的尾部。
本发明所述的出水咀总成中，所述阀芯压盘与阀芯固定连接方式采用胶接，胶接后阀芯受水压带动阀芯压盘在阀芯导向孔内轴向运动。
本发明所述的出水咀总成中，阀芯压盘受土压位于下行极限时，阀芯径向进水孔全部暴露在出水桩盖内，出水口出水；阀芯压盘上的土受水湿润后松动，对阀芯压盘的压力逐渐减小，阀芯带动阀芯压盘逐渐上行；当出带动阀芯压盘伸出地面后，土压消失，阀芯受水压上行到极限时，阀芯径向进水孔全部进入阀芯导向孔内，停止出水。
本发明所述的出水咀总成中，所述出水桩盖内加工有盖内螺纹，所述出水咀接头的一端加工有外螺纹，所述出水桩盖与出水咀接头通过所述的 外螺纹和内螺纹配合连接，实现所述压感式出水咀与出水咀接头的连接；所述出水咀接头另一端采用胶接工艺插入第三活动管总成小端内。
在本发明所述的灌溉伸缩式出水桩中，当到准备农田耕种时，拧下地面支管，将出水咀安装到出水咀接头上，再将本灌溉伸缩式出水桩压到土中一定深度，且不影响耕种；当到准备灌溉时，启动水管网的水泵，在水压和出水的双重作用下，灌溉伸缩式出水桩的出水咀会从土中自动伸出，伸出后拧下出水咀，拧上地面支管，灌溉系统完成连接。
实施本发明的灌溉伸缩式出水桩的有益效果是：
1、本发明的灌溉伸缩式出水桩解决了灌溉系统中出水桩每年寻找和拆装问题，节省了大量人力物力、效率大为提高，并且不损坏庄稼。
2、本发明的灌溉伸缩式出水桩压缩操作简单，伸出自动且自如，性能可靠。
3、本发明的灌溉伸缩式出水桩工艺先进，便于制造。
4、本发明的出水桩用压感式出水咀解决了灌溉伸缩式出水桩在伸出地面后还出水问题。
5、本发明的出水桩用压感式出水咀性能可靠，工艺先进，便于制造。
附图说明
图1是本发明灌溉伸缩式出水桩实施例的结构示意图；
图2是图1所示实施例的第三活动管总成结构示意图；
图3是图1所示实施例的第二活动管总成结构示意图；
图4是图1所示实施例的第一活动管总成结构示意图；
图5是图1所示实施例的主管总成结构示意图；
图6是图1所示实施例的出水咀总成结构示意图；
图7为图6所示实施例的出水桩盖结构示意图；
图8是图6所示实施例的阀芯的结构示意图；
图9是图6所示实施例的阀芯压盘的结构示意图；
图10是图1所示实施例的出水咀接头结构示意图；
图11是图1所示实施例的水管网连接头结构示意图；
图12是图1所示实施例的阀芯上行至极限的结构示意图；
各附图中标号对应名称如下：1、水管网连接头，11、水管网连接头，2、出水咀总成，21、压感式出水咀，211、出水桩盖，212、倒T形阀芯，213、阀芯压盘，214、水封，215、阀芯导向孔，216、阀芯轴向出水孔，217、阀芯径向进水孔，218、盖内螺纹，219、倒T形阀芯小端，2110、连接筒，2111、出水口，22、出水咀接头，221、外螺纹，3、第三活动管总成，31、第三活动管，32、第三活塞，33、第三Y形密封圈，4、第二活动管总成，41、第二活动管，42、第二活塞，43、第三限位筒，44、第二Y形密封圈，45、第三轴向密封垫，5、主管总成，51、主管，52、第一限位筒，53、第一轴向密封垫，6、第一活动管总成，61、第一活动管，62、第一活塞，63、第二限位筒，64、第一Y形密封圈，65、第二轴向密封垫。
具体实施方式
下面通过附图对本发明技术方案进行详细说明，但是本发明的保护范围不局限于所述实施例。
实施例：如图1至图12所示的本发明实施例的灌溉伸缩式出水桩，主要由水管网连接头1、主管总成5、第一活动管总成6、第二活动管总成4、第三活动管总成3、出水咀总成2五部分组成；第二活动管总成4小端从第一活动管总成6大孔端入，从第一活动管总成6小孔端出后，再将这两活动管总成小端从主管总成5大孔端入小孔端出后，在第三活动管总成3小端装上出水咀总成2，在主管总成5大孔端装上水管网连接头1。
如图1、图11所示，在本实施例中，水管网连接头1为变径接头，其入水端为小孔端，所述小孔端加工有水管网连接头外螺纹11。
如图1、图5所示，在本实施例中，主管总成5由主管51、第一限位筒52、第一轴向密封垫53组成，第一限位筒52一端有限位止口，主管51和第一限位筒52采用胶接工艺组装，第一轴向密封垫53置于主管51与第一限位筒52之间。
如图1、图4所示，在本实施例中，第一活动管总成6由第一活动管61、第一活塞62、第二限位筒63、第二轴向密封垫65、第一Y形密封圈64组成，第一活动管61和第一活塞62、第二限位筒63采用胶接工艺组装，第一Y形密封圈64装到第一活塞62密封槽中，第二轴向密封垫65置于第一活动管61与第二限位筒63之间。
如图1、图3所示，在本实施例中，第二活动管总成4由第二活动管41、第二活塞42、第三限位筒43，第三轴向密封垫45、一只第二Y形密封圈44组成，第二活动管41和第二活塞42采用胶接工艺组装，第二Y形密封圈44装到第二活塞42密封槽中；第三轴向密封垫45置于第二活动管41和第三限位筒43。
如图1、图2所示，在本实施例中，第三活动管总成3由第三活动管31、第三活塞32、一只第三Y形密封圈33组成，第三活动管31和第三活塞32采用胶接工艺组装，第三Y形密封圈33装到第三活塞32密封槽中。
如图1、图6～10所示，在本实施例中，出水咀总成2由压感式出水咀21和出水咀接头22组成，压感式出水咀21通过所述出水咀接头22与所述第二活动管总成3小端连接；压感式出水咀包括出水桩盖211、倒T形阀芯212和阀芯压盘213；所述出水桩盖211上开设阀芯导向孔215，所述阀芯压盘213具有插置于阀芯导向孔215内的连接筒2110，以及位于阀芯压盘213顶部与所述连接筒2110的空腔贯通的出水口2111，所述倒T形阀芯的小端219插置在所述连接筒2110的尾部，将阀芯压盘213与倒T形阀芯212连为整体；所述倒T形阀芯的小端219内开设出水通道，所述出水通道为T形出水通道，包括阀芯轴向出水孔216和四个阀芯径向进水孔217，连接筒2110的外壁上开设与阀芯径向进水孔217连通的通孔，阀芯轴向出水孔216与连接筒2110的空腔连通，且阀芯轴向出水孔216为盲孔。所述T形出水通道与连接筒2110的空腔以及出水口2111连通形成通水流道，图6中箭头方向标示水流方向；本实施例中，出水咀总成还包括水封214，所述倒T形阀芯的小端219套上水封214后采用胶接固定的方式插置在所述连接筒2110的尾部；胶接后倒T形阀芯212受水压带动阀芯压盘213在阀芯导向孔215内轴向运动，其上行极限由倒T形阀芯212限制。
如图1、图6所示，在本实施例中，阀芯压盘213受土压位于下行极限时，阀芯径向进水孔217全部暴露在出水桩盖211内，出水口2111出水；阀芯压盘213上的土受水湿润后松动，对阀芯压盘213的压力逐渐减小， 倒T形阀芯212带动阀芯压盘213逐渐上行；如图12所示，当带动阀芯压盘213完全伸出地面后，土压消失，倒T形阀芯212受水压上行到极限时，阀芯径向进水孔217全部进入阀芯导向孔215内，此时，出水通道完全被堵死，停止出水。
如图1、图6、图10所示，在本实施例中，出水桩盖211内加工有盖内螺纹218，所述出水咀接头22的一端加工有外螺纹221，所述出水桩盖211与出水咀接头22通过所述的外螺纹221和内螺纹218配合连接，实现所述压感式出水咀21与出水咀接头22的连接；所述出水咀接头22另一端采用胶接工艺插入第三活动管总成3小端内。
如图1、图11所示，在本实施例中，水管网连接头1与主管总成5大孔端采用胶接工艺组装。
如图1至图12所示，在本实施例中，水管网连接头1、主管51、第一活动管41、第二活动管31、第一活塞42、第二活塞32、压感式出水咀21、第一限位筒52、第二限位筒43、出水桩盖211、阀芯212、阀芯压盘213都为PVC材料。
在本实施例中，当到准备农田耕种时，拧下地面支管，将压感式出水咀21安装到出水咀接头22上，再将本灌溉伸缩式出水桩压到土中一定深度，且不影响耕种；当到准备灌溉时，启动水管网的水泵，在水压和出水的双重作用下，灌溉伸缩式出水桩上出水咀的阀芯压盘会从土中先后自动伸出，当阀芯压盘受水压上行至极限位置时，出水孔完全进入阀芯导向孔，出水孔被完全堵死，水停止流出；这一设计防止出水咀漏出地面后水不受控制乱喷的现象；待所有出水嘴全部露出地面后先停下水管网的水泵，然 后将出水咀拧下，在出水桩出口上接上灌溉地面支管，灌溉系统完成连接。
上述附图的实施例仅为本发明的较佳实施例，并非依此限制本发明的保护范围，故凡依据本发明的原理、形状、结构所做的等效或相近的变化，均应涵盖于本发明的保护范围之内。

Claims (20)

  1. 一种灌溉伸缩式出水桩，其特征在于：包括水管网连接头、主管总成、若干级活动管总成以及出水咀总成；所述若干级活动管总成的内径依次递减，且每一级活动管总成均分为大孔端和小孔端，较小内径的活动管总成从较大内经的活动管总成的大孔端入，并从较大内径的活动管总成的小孔端出，依次组装构成若干级活动管总成，再将该若干级活动管总成的小端从主管总成大孔端入小孔端出后，在最高级活动管总成的小孔端装上出水咀总成，在主管总成大孔端装上水管网连接头。
  2. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述的若干级活动管总成为三级活动管总成，包括第一活动管总成、第二活动管总成和第三活动管总成；所述第三活动管总成小端从第二活动管总成大孔端入，从第二活动管总成小孔端出后，再将这两级活动管总成小端从第一活动管总成大孔端入，从第一活动管总成小孔端出后，最后将这三级活动管总成小端从主管总成大孔端入，小孔端出后；在第三活动管总成小孔端装上出水咀总成，在主管总成大孔端装上水管网连接头。
  3. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述水管网连接头为变径接头，其入水端为小孔端，所述小孔端加工有外螺纹。
  4. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述主管总成由主管、第一限位筒、第一轴向密封垫组成，第一限位筒一端有限位止口，主管和第一限位筒采用胶接工艺组装。
  5. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述第一活动管总成由第一活动管、第一活塞、第二限位筒、第二轴向密封垫、第 一Y形密封圈组成，第一活动管和第一活塞、第二限位筒采用胶接工艺组装，第一Y形密封圈装到第一活塞密封槽中。
  6. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述第二活动管总成由第二活动管、第二活塞、第三限位筒、第三轴向密封垫、一只第二Y形密封圈组成，第二活动管和第二活塞、第三限位筒采用胶接工艺组装，第二Y形密封圈装到第二活塞密封槽中。
  7. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述第三活动管总成由第三活动管、第三活塞、一只第三Y形密封圈组成，第三活动管和第三活塞采用胶接工艺组装，第三Y形密封圈装到第三活塞密封槽中。
  8. 根据权利要求1所述的灌溉伸缩式出水桩，其特征在于：所述出水咀总成由压感式出水咀和出水咀接头组成，所述压感式出水咀通过所述出水咀接头与所述第三活动管总成小端连接；所述压感式出水咀包括出水桩盖、阀芯和阀芯压盘；所述出水桩盖上开设阀芯导向孔，所述阀芯压盘具有插置于阀芯导向孔内的连接筒，以及位于阀芯压盘顶部与所述连接筒的空腔贯通的出水口，所述阀芯插置在所述连接筒的尾部，将阀芯压盘与阀芯连为整体；所述阀芯内开设出水通道，所述连接筒的外壁上开设与所述出水通道连通的通孔，所述出水通道与连接筒的空腔以及出水口连通形成通水流道；受水压作用阀芯带动阀芯压盘沿阀芯导向孔做轴向运动。
  9. 根据权利要求8所述的灌溉伸缩式出水桩，其特征在于：所述阀芯为倒T形阀芯，所述倒T形阀芯的小端插置在所述连接筒的尾部；所述出水通道设于所述倒T形阀芯的小端上，所述出水通道为T形出水通道，包 括阀芯轴向出水孔和阀芯径向进水孔，阀芯轴向出水孔与连接筒的空腔连通，且阀芯轴向出水孔为盲孔。
  10. 根据权利要求9所述的灌溉伸缩式出水桩，其特征在于：所述倒T形阀芯上还设有水封，所述倒T形阀芯的小端套上水封后插置在所述连接筒的尾部。
  11. 根据权利要求8所述的灌溉伸缩式出水桩，其特征在于：所述阀芯压盘与阀芯固定连接方式采用胶接，胶接后阀芯受水压带动阀芯压盘在阀芯导向孔内轴向运动。
  12. 根据权利要求11所述的灌溉伸缩式出水桩，其特征在于：阀芯压盘受土压位于下行极限时，阀芯径向进水孔全部暴露在出水桩盖内，出水口出水；当阀芯压盘伸出地面后，土压消失，阀芯受水压上行到极限时，阀芯径向进水孔全部进入阀芯导向孔内，停止出水。
  13. 根据权利要求8所述的灌溉伸缩式出水桩，其特征在于：所述出水桩盖内加工有盖内螺纹，所述出水咀接头的一端加工有外螺纹，所述出水桩盖与出水咀接头通过所述的外螺纹和内螺纹配合连接，实现所述压感式出水咀与出水咀接头的连接；所述出水咀接头另一端采用胶接工艺插入第三活动管总成小端内。
  14. 根据权利要求1～12中任一项所述的灌溉伸缩式出水桩，其特征在于：所述水管网连接头、主管、第一活动管、第二活动管、第三活动管、第一活塞、第二活塞、第三活塞、出水咀、第一限位筒、第二限位筒、第三限位筒、出水桩盖、阀芯、阀芯压盘都为PVC材料。
  15. 一种用于权利要求1所述出水桩的出水咀总成，其特征在于：所 述出水咀总成由压感式出水咀和出水咀接头组成，所述压感式出水咀通过所述出水咀接头与所述第三活动管总成小端连接；所述压感式出水咀包括出水桩盖、阀芯和阀芯压盘；所述出水桩盖上开设阀芯导向孔，所述阀芯压盘具有插置于阀芯导向孔内的连接筒，以及位于阀芯压盘顶部与所述连接筒的空腔贯通的出水口，所述阀芯插置在所述连接筒的尾部，将阀芯压盘与阀芯连为整体；所述阀芯内开设出水通道，所述连接筒的外壁上开设与所述出水通道连通的通孔，所述出水通道与连接筒的空腔以及出水口连通形成通水流道；受水压作用阀芯带动阀芯压盘沿阀芯导向孔做轴向运动。
  16. 根据权利要求15所述的出水咀总成，其特征在于：所述阀芯为倒T形阀芯，所述倒T形阀芯的小端插置在所述连接筒的尾部；所述出水通道设于所述倒T形阀芯的小端上，所述出水通道为T形出水通道，包括阀芯轴向出水孔和阀芯径向进水孔，阀芯轴向出水孔与连接筒的空腔连通，且阀芯轴向出水孔为盲孔。
  17. 根据权利要求16所述的出水咀总成，其特征在于：所述倒T形阀芯上还设有水封，所述倒T形阀芯的小端套上水封后插置在所述连接筒的尾部。
  18. 根据权利要求16所述的出水咀总成，其特征在于：所述阀芯压盘与阀芯固定连接方式采用胶接，胶接后阀芯受水压带动阀芯压盘在阀芯导向孔内轴向运动。
  19. 根据权利要求18所述的出水咀总成，其特征在于：阀芯压盘受土压位于下行极限时，阀芯径向进水孔全部暴露在出水桩盖内，出水口出水；当阀芯压盘伸出地面后，土压消失，阀芯受水压上行到极限时，阀芯径向 进水孔全部进入阀芯导向孔内，停止出水。
  20. 根据权利要求15所述的出水咀总成，其特征在于：所述出水桩盖内加工有盖内螺纹，所述出水咀接头的一端加工有外螺纹，所述出水桩盖与出水咀接头通过所述的外螺纹和内螺纹配合连接，实现所述压感式出水咀与出水咀接头的连接；所述出水咀接头另一端采用胶接工艺插入第三活动管总成小端内。
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