Split type air pressure drip irrigation device

Abstract

The utility model discloses a split type air pressure drip irrigation device, which belongs to the technical field of drip irrigation devices and comprises an upper working part and a lower working part, a water storage bottle is abutted between the upper working part and the lower working part, the bottom of the water storage bottle is communicated with an eccentric water outlet pipe, and the top of the water storage bottle is communicated with an air pressure device. By arranging the air pressure device capable of automatically adjusting according to weather, the automatic opening and closing of the device can be smoothly realized and the air pressure in the water storage bottle can be controlled by utilizing the rule that the atmospheric pressure is large in sunny days and small in cloudy and rainy days, so that the effect of automatically replenishing water is achieved, the labor and time cost is greatly reduced, and the working efficiency is improved. Meanwhile, the method is also suitable for withering of indoor plants caused by business trips or other long-time unattended conditions.

Description

Technical Field

[0001] This utility model belongs to the field of drip irrigation device technology, specifically relating to a split-type pneumatic drip irrigation device. Background Technology

[0002] Drip irrigation helps maintain a relatively moist soil environment for plant growth, thus ensuring good plant growth. At the same time, drip irrigation minimizes evaporation loss, reduces surface runoff, and has almost no deep seepage, making it a water-saving irrigation method.

[0003] Currently, in many single-plant cultivation scenarios, such as wild plant cultivation experimental bases, in order to ensure the normal growth of plants, people need to regularly water the plants according to the weather and rainfall conditions to ensure their growth. If watering is not carried out for a long time, the growth of the plants will be hindered or even wither and die. However, long-term human presence will waste a lot of time.

[0004] Currently, most plant drip irrigation devices on the market that can start and stop autonomously are controlled by electronic signals. This inevitably leads to complex and redundant devices, increases the cost of use, and is not conducive to production and widespread use. In addition, it is difficult to use electricity under complex conditions, and the safety of the water and electricity system is also difficult to guarantee.

[0005] Therefore, this utility model proposes a split-type air pressure drip irrigation device that can automatically open and close the water replenishment device according to the weather conditions, eliminating the need for traditional complex electronic components and ensuring stable operation under various circumstances. Utility Model Content

[0006] The purpose of this invention is to provide a split-type air pressure drip irrigation device, which solves the technical problem that traditional self-closing plant drip irrigation devices all rely on electronic signals to control the opening and closing of the drip irrigation device, resulting in complex and redundant devices and increased usage costs.

[0007] The technical solution adopted in this utility model is a split-type air pressure drip irrigation device, which includes an upper working part and a lower working part. A water storage bottle is connected between the upper working part and the lower working part. An eccentric water outlet pipe is connected to the bottom of the water storage bottle, and an air pressure device is connected to the top of the water storage bottle.

[0008] The features of this utility model also include:

[0009] The pneumatic device includes a housing and a pressure chamber located at the bottom of the housing. The housing and the pressure chamber are connected by a gas-liquid semi-permeable membrane. A liquid pressure column is located at the top of the gas-liquid semi-permeable membrane inside the housing. One end of the liquid pressure column is connected to the atmosphere, and the other end of the liquid pressure column is sealed and has a negative pressure cavity. A window is opened at the corresponding position of the liquid pressure column and the gas-liquid semi-permeable membrane. Atmospheric pressure acts on the liquid surface at the end of the liquid pressure column connected to the atmosphere to control the opening and closing of the gas-liquid semi-permeable membrane.

[0010] The pneumatic device also includes a rigid plastic connecting pipe that connects the pressure chamber and the water storage bottle.

[0011] The top of the housing is connected to a movable flap via a hinge. The movable flap is located at one end near the liquid pressure column where a negative pressure cavity is set, and a venting mesh is opened on the movable flap.

[0012] An observation window is provided on the side wall of the casing near the end where the liquid pressure column communicates with the atmosphere.

[0013] The bottom of the housing has a drainage hole; the side wall of the housing has a mounting groove, through which the housing is connected to the upper working part.

[0014] One end of the rigid plastic connecting tube is fixed with a sealing plug, and the other end of the rigid plastic connecting tube is fixed with an air outlet needle tube.

[0015] The rigid plastic connecting pipe is connected to the pressure chamber through a sealing plug;

[0016] The air outlet needle includes a sharpened needle tip, with a gradient-type wall-adhering rubber sealing gasket fitted at the tail of the sharpened needle tip, and a spiral-type rubber sealing plug fitted on the gradient-type wall-adhering rubber sealing gasket.

[0017] The water storage bottle has a vent hole. A sharpened needle is inserted into the vent hole, which is then sealed to a gradient-type wall-mounted rubber sealing gasket and a spiral rubber sealing plug.

[0018] The pneumatic drip irrigation device also includes a hollow telescopic tube, with internal and external threads at both ends;

[0019] The hollow expansion tube is connected to the upper and lower working parts via external threads;

[0020] The hollow telescopic tube is connected to a hook nut via an internal thread, and a tension spring is connected between the two hook nuts.

[0021] The eccentric water outlet pipe is equipped with a roller-type throttle valve, and the outlet end of the eccentric water outlet pipe is equipped with a tail nozzle. The inlet end of the eccentric water outlet pipe is equipped with a gradient rubber thread interface, and the eccentric water outlet pipe is connected to the water storage bottle through the gradient rubber thread interface.

[0022] There are sponge pads between the upper working part and the water storage bottle.

[0023] Both the side walls of the upper working part and the side walls of the lower working part are fixed with wall-mounted ear clips.

[0024] The beneficial effects of this utility model are:

[0025] This invention features a pressure device that can adjust automatically according to the weather. By utilizing the principle that atmospheric pressure is higher on sunny days and lower on rainy days, the device can be opened and closed automatically to control the pressure in the water storage bottle, thereby achieving automatic water replenishment. This greatly reduces labor and time costs and is also suitable for indoor plants that have withered due to business trips or other long periods of neglect. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the split-type pneumatic drip irrigation device of this utility model;

[0027] Figure 2 This is a schematic diagram of the air pressure device in the split-type air pressure drip irrigation device of this utility model;

[0028] Figure 3 This is a schematic diagram of the air outlet needle tube in the split-type pneumatic drip irrigation device of this utility model.

[0029] Figure 4 This is a diagram showing the working state of the split-type pneumatic drip irrigation device of this utility model under outdoor conditions;

[0030] Figure 5 This is a diagram showing the working state of the split-type pneumatic drip irrigation device of this utility model under indoor conditions.

[0031] In the diagram, 1. Upper working part, 2. Tension spring, 3. Hollow telescopic tube, 4. Lower working part, 5. Hook nut, 6. Roller-type throttle valve, 7. Sponge foot pad, 8. Air pressure device, 9. Water storage bottle, 10. Wall-mounted ear clip, 11. Gradient rubber threaded interface, 12. Eccentric water outlet pipe, 13. Tail nozzle, 14. Movable flip cover, 15. Mounting groove, 16. Vent hole, 17. Air outlet needle tube, 18. Hinge, 19. Gas-liquid semi-permeable membrane, 20. Liquid pressure column, 21. Observation window, 22. Drain hole, 23. Air pressure chamber, 24. Sealing plug, 25. Rigid plastic connecting tube, 26. Sharpened needle, 27. Gradient wall-mounted rubber sealing gasket, 28. Spiral rubber sealing plug. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Example 1

[0034] like Figure 1-3As shown, the split-type pneumatic drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and a pneumatic device 8 is connected to the top of the water storage bottle 9.

[0035] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0036] Example 2

[0037] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0038] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0039] Furthermore, the pneumatic device 8 includes a housing and a pneumatic chamber 23 disposed at the bottom of the housing. The housing and the pneumatic chamber 23 are connected by a gas-liquid semi-permeable membrane 19. A liquid pressure column 20 is disposed at the top of the gas-liquid semi-permeable membrane 19 inside the housing. One end of the liquid pressure column 20 is connected to the atmosphere, and the other end of the liquid pressure column 20 is sealed and a negative pressure cavity is provided. A window is opened at the corresponding position of the liquid pressure column 20 and the gas-liquid semi-permeable membrane 19. Atmospheric pressure acts on the liquid surface at the end of the liquid pressure column 20 connected to the atmosphere to control the opening and closing of the gas-liquid semi-permeable membrane 19.

[0040] The pneumatic device 8 also includes a rigid plastic connecting pipe 25, which connects the pneumatic chamber 23 and the water storage bottle 9.

[0041] In this embodiment, the pressure chamber 23 is used to form a closed system with the water storage bottle 9. Atmospheric pressure acts on the liquid surface at the end of the liquid pressure column 20 in the pressure device 8 that is connected to the atmosphere, i.e., the pressure column on the right side of the liquid pressure column 20. Since the other end of the liquid pressure column 20 is sealed and a negative pressure cavity is provided, i.e., the pressure column on the left side of the liquid pressure column 20, it is used to balance the vertical weight of the liquid inside the liquid pressure column 20. Therefore, even a slight change in atmospheric pressure will cause a change in the liquid surface on the right side of the liquid pressure column 20. When the temperature is high and the weather is sunny, the atmospheric pressure is large, which acts on the liquid surface on the right side of the liquid pressure column 20, causing the liquid surface to shift to the left, exposing the gas-liquid semi-permeable membrane 19. At this time, air molecules can enter the pressure chamber 23 through the gas-liquid semi-permeable membrane 19. Since the pressure chamber 23 is connected to the water storage bottle 9 through the rigid plastic connecting tube 25 and the air outlet needle tube 17, gas molecules can continuously enter the water storage bottle 9, balancing the negative pressure in the water storage bottle 9, thus restoring drip irrigation. When the temperature is low and the weather is cloudy or rainy, the atmospheric pressure is low, and the liquid surface on the right side of the liquid pressure column 20 gradually returns to its original state. The gas-liquid semi-permeable membrane 19 is sealed by liquid. At this time, air molecules cannot enter the pressure chamber 23 through the gas-liquid semi-permeable membrane 19, and the air pressure in the water storage bottle 9 gradually becomes negative pressure, thus pausing drip irrigation.

[0042] Example 3

[0043] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0044] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0045] Furthermore, the pneumatic device 8 includes a housing and a pneumatic chamber 23 disposed at the bottom of the housing. The housing and the pneumatic chamber 23 are connected by a gas-liquid semi-permeable membrane 19. A liquid pressure column 20 is disposed at the top of the gas-liquid semi-permeable membrane 19 inside the housing. One end of the liquid pressure column 20 is connected to the atmosphere, and the other end of the liquid pressure column 20 is sealed and a negative pressure cavity is provided. A window is opened at the corresponding position of the liquid pressure column 20 and the gas-liquid semi-permeable membrane 19. Atmospheric pressure acts on the liquid surface at the end of the liquid pressure column 20 connected to the atmosphere to control the opening and closing of the gas-liquid semi-permeable membrane 19.

[0046] The pneumatic device 8 also includes a rigid plastic connecting pipe 25, which connects the pneumatic chamber 23 and the water storage bottle 9.

[0047] Furthermore, a movable flap 14 is connected to the top of the housing via a hinge 18. The movable flap 14 is located at one end near the negative pressure cavity of the liquid pressure column 20, that is, near the left side of the liquid pressure column 20. A venting mesh is provided on the movable flap 14. The movable flap 14 and the venting mesh are used to clean impurities in the water inside the housing to avoid damaging the gas-liquid semi-permeable membrane 19 and to allow gas to enter.

[0048] Furthermore, an observation window 21 is provided on the side wall of the casing near the end where the liquid pressure column 20 communicates with the atmosphere, that is, an observation window 21 is provided on the right side wall of the casing near the liquid pressure column 20.

[0049] Furthermore, a drainage hole 22 is provided at the bottom of the housing; a mounting groove 15 is provided on the side wall of the housing, and the housing is connected to the upper working part 1 through the mounting groove 15.

[0050] In this embodiment, the purpose of the mounting slot 15 is mainly to facilitate the installation and removal of the pneumatic device, the purpose of the observation window 21 is mainly to observe the working status of the liquid pressure column in the pneumatic device 8, and the drain hole 22 is used to drain rainwater accumulated in the pneumatic device 8.

[0051] Example 4

[0052] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0053] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0054] Furthermore, the pneumatic drip irrigation device also includes a hollow telescopic tube 3, with internal threads and external threads at both ends of the hollow telescopic tube 3;

[0055] The hollow telescopic tube 3 is threadedly connected to the upper working part 1 and the lower working part 4 via external threads;

[0056] The hollow telescopic tube 3 is connected to a hook nut 5 via an internal thread, and a tension spring 2 is connected between the two hook nuts 5.

[0057] In this embodiment, the hollow telescopic tube 3 is used to connect the upper working part 1 and the lower working part 4, and provides tension so that pressure is applied to the bottle mouth and the bottom of the bottle after the water storage bottle 9 is installed to ensure that the water does not leak; the tension spring 2 is set in the inner cavity of the hollow telescopic tube 3, and the two ends of the tension spring 2 are hung on the hook nut 5 to complete the connection. The connection between two adjacent branches of the hollow telescopic tube 3 is provided with a fixing buckle.

[0058] This embodiment includes three hollow telescopic tubes 3. Two of the three hollow telescopic tubes 3 have positioning buckles at their intermediate connection points; specifically, a locking hole is provided at the fixing position of the outer tube, and a hemispherical protrusion is provided at the fixing position of the inner tube. When the hollow telescopic tube 3 is stretched to the corresponding positions, the hemisphere pops out, fixing the hollow telescopic tube 3 and facilitating the installation of the water storage bottle 9. Both ends of the hollow telescopic tube 3 are threaded, both internally and externally. The external thread is used for connection with the upper working part 1 and the lower working part 4, while the internal thread is used for the installation of the hook nut 5, which is used to fix the tension spring 2.

[0059] Example 5

[0060] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0061] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0062] Furthermore, the eccentric water outlet pipe 12 is equipped with a roller-type throttle valve 6, the water outlet end of the eccentric water outlet pipe 12 is equipped with a tail nozzle 13, and the water inlet end of the eccentric water outlet pipe 12 is equipped with a gradient rubber threaded interface 11. The eccentric water outlet pipe 12 is connected to the water storage bottle 9 through the gradient rubber threaded interface 11.

[0063] In this embodiment, the eccentric water outlet pipe 12 is threaded at the end to facilitate the installation of different tail nozzles 13 for different usage scenarios. The tail nozzle 13 includes a threaded interface, a pleated telescopic tube, and a slanted water outlet. In addition, when the hollow telescopic tube 3 is in a free state, the tension spring 2 is exactly in a free state, and the length of the hollow telescopic tube 3 at this time is less than the height of the water storage bottle 9 and the height of mainstream beverage bottles and mineral water bottles on the market. The gradient rubber threaded interface 11 can also meet the access requirements of most plastic bottle openings on the market. Therefore, in extreme conditions where it is inconvenient to carry the water storage bottle 9, common empty plastic bottles can be used as a substitute.

[0064] Example 6

[0065] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0066] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0067] Furthermore, a sealing plug 24 is fixedly connected to one end of the rigid plastic connecting tube 25, and an air outlet needle tube 17 is fixedly connected to the other end of the rigid plastic connecting tube 25.

[0068] The rigid plastic connecting pipe 25 is connected to the pressure chamber 23 through the sealing plug 24;

[0069] The air outlet needle tube 17 includes a sharpened needle 26, and a gradually changing wall-adhering rubber sealing gasket 27 is sleeved at the tail of the sharpened needle 26. A spiral rubber sealing plug 28 is sleeved on the gradually changing wall-adhering rubber sealing gasket 27.

[0070] The water storage bottle 9 has a vent hole 16. A sharpened needle 26 is inserted into the vent hole 16. The vent hole 16 is sealed and connected to the gradient wall-mounted rubber sealing gasket 27 and the spiral rubber sealing plug 28.

[0071] In this embodiment, the vent 16 connects the water storage bottle 9 and the air pressure device 8. The spiral rubber sealing plug 28 mainly serves a sealing function, and the vent needle 17 connects to the vent 16. The needle tip of the vent needle 17 is a sharpened needle tip 26, and a gradient wall-mounted rubber sealing gasket 27 is provided at the tail end to ensure that a sealed environment can still be formed when using the water storage bottle 9 to meet the working requirements.

[0072] Example 7

[0073] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0074] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes, with the upper working part 1 being smaller and the lower working part 4 being larger. The upper working part 1 and the lower working part 4 are vertically connected, and the upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, making them easy to disassemble, carry, and assemble for use. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended for operation, this method is not suitable for use in indoor environments or other situations where it is difficult to find a hanging point. Therefore, the water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0075] Furthermore, a sponge foot pad 7 is provided between the upper working part 1 and the water storage bottle 9.

[0076] In this embodiment, the sponge foot pad 7 is used to stabilize the water storage bottle 9.

[0077] Example 8

[0078] The split-type air pressure drip irrigation device disclosed in this utility model includes an upper working part 1 and a lower working part 4. A water storage bottle 9 is abutted between the upper working part 1 and the lower working part 4. An eccentric water outlet pipe 12 is connected to the bottom of the water storage bottle 9, and an air pressure device 8 is connected to the top of the water storage bottle 9.

[0079] The split-type pneumatic drip irrigation device disclosed in this embodiment adopts a split structural design, with an upper working part 1 and a lower working part 4, both of which are inverted triangular truncated pyramid shapes. The upper working part 1 is smaller and the lower working part 4 is larger. The upper working part 1 and the lower working part 4 are vertically connected. The upper working part 1, the lower working part 4, and the water storage bottle 9 are all independent, which facilitates disassembly, carrying, and assembly. The pneumatic device 8 uses atmospheric pressure to control the internal air pressure of the water storage bottle 9, thereby controlling the opening and closing of the device. Since most existing small drip irrigation devices are designed to be suspended, this method is not suitable for use indoors or in situations where it is difficult to find a hanging point. The water outlet pipe is designed as an eccentric water outlet pipe 12, which facilitates the placement of the device on a platform for operation.

[0080] Furthermore, wall-mounted ear clips 10 are fixedly connected to the side walls of both the upper working part 1 and the lower working part 4.

[0081] In this embodiment, the upper working part 1 and the lower working part 4 are designed as inverted triangular truncated pyramids, and wall-mounted ear clips 10 are designed on each side. The upper working part 1 and the lower working part 4 are designed to be smaller at the top and larger at the bottom. Under open outdoor conditions, only three support rods are needed for the device to work normally. Due to the special design, at each wall-mounted ear clip 10, the support rod, the wall-mounted ear clip 10, and the working part are in balance of three forces. After water is filled into the water storage bottle 9, a self-locking phenomenon is formed between each support rod, the wall-mounted ear clip 10, and the working part under the action of gravity, which ensures the stability of the device.

[0082] In practical use, the device is first inverted, and the upper working part 1 and the lower working part 4 are stretched to their limit positions so that the buckle at the connection of the hollow telescopic tube 3 pops out and the hollow telescopic tube 3 is fixed. After plugging the vent hole 16 of the water storage bottle with a rubber stopper, an appropriate amount of water is poured in. After screwing the bottle mouth into the gradient rubber thread interface 11, the hemispherical protrusion of the buckle at the middle connection of the hollow telescopic tube 3 is pressed down so that the hollow telescopic tube 3 begins to retract and squeezes the water storage bottle 9 to seal it.

[0083] Next, close the roller-type throttle valve 6 and turn the device of this utility model upright; then align the air pressure device 8 with the mounting groove 15 on the upper working part 1, pull out the vent rubber plug, and insert the air outlet needle tube 17 on the air pressure device 8 to form a closed system between the water storage bottle 9 and the air pressure device 8.

[0084] After the water storage bottle 9 and the air pressure device 8 form a closed system, the device is installed. The specific installation method depends on the applicable situation. In outdoor open-air environments, such as outdoor plant cultivation bases, support rods are needed to suspend the device for operation. Figure 4 As shown, in difficult conditions, tree branches can be used as a substitute for the support rod; another practical method for indoor installation is to place it on the edge of a bench or table, where only the eccentric water outlet needs to be exposed for it to work. Figure 5 As shown.

[0085] After installation, open the roller-type throttle valve 6 to discharge a small portion of water at a low flow rate, and the air pressure in the water storage bottle 9 will be set to negative pressure, and the device will enter the working state.

[0086] Different tail nozzles 13 can be installed at the outlet according to specific needs, and the pleated telescopic tube can be bent into the required shape so that the slanted outlet nozzle can be aimed at the plant roots for precise drip irrigation.

[0087] The working principle of this utility model is as follows:

[0088] After a fixed amount of water is filled into the water storage bottle 9, the roller-type throttle valve 6 is adjusted to a smaller drip rate, allowing the water to flow out. Soon, the water stops flowing out due to the combined effect of the negative pressure in the water storage bottle 9 and atmospheric pressure. Atmospheric pressure acts on the right side of the liquid pressure column 20 in the pressure device 8. Because the gas cavity on the left side of the liquid pressure column 20 is set to negative pressure to balance the vertical weight of the internal liquid, even slight changes in atmospheric pressure will cause changes in the liquid level on the right side of the liquid pressure column 20. When the temperature is high and the weather is sunny, the atmospheric pressure is greater, acting on the right side of the liquid pressure column 20 and causing the liquid level to shift to the left. When the gas-liquid semi-permeable membrane 19 is exposed, air molecules can pass through the membrane and enter the pressure chamber 23. Since the pressure chamber 23 is connected to the water storage bottle 9 via the rigid plastic connecting tube 25 and the air outlet needle tube 17, gas molecules can continuously enter the water storage bottle 9, balancing the negative pressure in the water storage bottle 9 and thus resuming drip irrigation. When the temperature is low and the weather is cloudy or rainy, the atmospheric pressure is low, and the liquid level on the right side of the liquid pressure column 20 gradually returns to its original state. The gas-liquid semi-permeable membrane 19 is sealed by liquid, and air molecules cannot pass through the membrane to enter the pressure chamber 23. The air pressure in the water storage bottle 9 gradually becomes negative again, thus suspending drip irrigation.

[0089] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A split-type pneumatic drip irrigation device, characterized in that, It includes an upper working part (1) and a lower working part (4), a water storage bottle (9) is connected between the upper working part (1) and the lower working part (4), an eccentric water outlet pipe (12) is connected to the bottom of the water storage bottle (9), and a pneumatic device (8) is connected to the top of the water storage bottle (9). The pneumatic device (8) includes a housing and a pneumatic chamber (23) located at the bottom of the housing. The housing and the pneumatic chamber (23) are connected by a gas-liquid semi-permeable membrane (19). A liquid pressure column (20) is provided at the top of the gas-liquid semi-permeable membrane (19) inside the housing. One end of the liquid pressure column (20) is connected to the atmosphere, and the other end of the liquid pressure column (20) is sealed and a negative pressure cavity is provided. A window is opened at the corresponding position of the liquid pressure column (20) and the gas-liquid semi-permeable membrane (19). Atmospheric pressure acts on the liquid surface at the end of the liquid pressure column (20) connected to the atmosphere to control the opening and closing of the gas-liquid semi-permeable membrane (19). The pneumatic device (8) also includes a rigid plastic connecting pipe (25), which connects the pneumatic chamber (23) and the water storage bottle (9). The pneumatic drip irrigation device also includes a hollow telescopic tube (3), both ends of which are respectively provided with internal threads and external threads; The hollow telescopic tube (3) is threadedly connected to the upper working part (1) and the lower working part (4) via external threads; The hollow telescopic tube (3) is connected to a hook nut (5) via an internal thread, and a tension spring (2) is connected between the two hook nuts (5). The eccentric water outlet pipe (12) is equipped with a roller-type throttle valve (6), the outlet end of the eccentric water outlet pipe (12) is equipped with a tail nozzle (13), the inlet end of the eccentric water outlet pipe (12) is equipped with a gradient rubber thread interface (11), and the eccentric water outlet pipe (12) is connected to the water storage bottle (9) through the gradient rubber thread interface (11). A sponge foot pad (7) is abutting between the upper working part (1) and the water storage bottle (9). The side walls of the upper working part (1) and the lower working part (4) are both fixed with wall-mounted ear clips (10).

2. The split-type pneumatic drip irrigation device according to claim 1, characterized in that, The top of the housing is connected to a movable flap (14) via a hinge (18). The movable flap (14) is located at one end near the liquid pressure column (20) where a negative pressure cavity is provided. A ventilation mesh is provided on the movable flap (14).

3. The split-type pneumatic drip irrigation device according to claim 2, characterized in that, An observation window (21) is provided on the side wall of the housing near the end where the liquid pressure column (20) communicates with the atmosphere.

4. The split-type pneumatic drip irrigation device according to claim 3, characterized in that, The bottom of the housing has a drainage hole (22); the side wall of the housing has a mounting groove (15), and the housing is connected to the upper working part (1) through the mounting groove (15).

5. The split-type pneumatic drip irrigation device according to claim 1, characterized in that, One end of the rigid plastic connecting tube (25) is fixedly connected to a sealing plug (24), and the other end of the rigid plastic connecting tube (25) is fixedly connected to an air outlet needle tube (17). The rigid plastic connecting pipe (25) is connected to the air pressure chamber (23) through a sealing plug (24); The air outlet needle tube (17) includes a sharpened needle (26), and a gradually changing wall-adhering rubber sealing gasket (27) is sleeved at the tail of the sharpened needle (26). A spiral rubber sealing plug (28) is sleeved on the gradually changing wall-adhering rubber sealing gasket (27). The water storage bottle (9) has a vent hole (16), the sharpened needle (26) extends into the vent hole (16), and the vent hole (16) is sealed and connected with the gradient wall-mounted rubber sealing gasket (27) and the spiral rubber sealing plug (28).

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