Conical plug pressure compensation drip irrigation emitter

Abstract

The invention discloses a conical plug pressure compensation drip irrigation emitter, and relates to the field of drip irrigation emitter design, the conical plug pressure compensation drip irrigation emitter comprises a connecting piece and a drip irrigation piece, the connecting piece and the drip irrigation piece are connected through a connecting device, the connecting piece comprises a plug and a connecting pipe, the plug is provided with a water inlet, the connecting pipe is internally provided with a water outlet channel, and the drip irrigation piece comprises an energy dissipation part and a drip irrigation part. A pressure compensation gasket is arranged in the energy dissipation part and divides an inner cavity of the energy dissipation part into an upper inner cavity and a lower inner cavity, a flow channel is formed in the lower inner cavity, water flow enters from a flow channel water inlet, penetrates through a flow channel unit and then flows out through a flow channel water outlet, and a flow guide groove connected with the upper inner cavity and the flow channel water inlet is formed in the energy dissipation part. The drip irrigation part is provided with drip irrigation holes for water to flow out. The conical plug pressure compensation drip irrigation emitter is simple in overall structure, convenient to manufacture, low in manufacturing cost, convenient for large-scale production and more suitable for large-area and long-distance drip irrigation operation.

Description

Technical Field

[0001] The invention belongs to the field of drip irrigation emitter design, and in particular relates to a conical plug pressure compensation drip irrigation emitter. Background Art

[0002] As an efficient way to utilize water resources, drip irrigation technology has shown great potential and energy consumption in my country's agricultural production. By precisely controlling the amount of water and the location of irrigation, drip irrigation can greatly improve the efficiency of water resource utilization.

[0003] However, before using the existing drip irrigation emitter, it is necessary to use a puncher to punch holes in the PE pipe to install the drip irrigation emitter. This step not only increases the installation cost, but also affects the popularity and application efficiency of the drip irrigation system to a certain extent.

[0004] In addition, as the shortage of water resources becomes increasingly serious, the choice of water sources for agricultural irrigation has become more and more diverse, and high-sand water, recycled water, and slightly salty water have gradually become common irrigation water sources. However, these water sources often contain a large amount of suspended matter, organic matter, microorganisms and other impurities, which can easily clog the drip irrigation emitter during the irrigation process, thereby reducing its service life and affecting the overall performance of the drip irrigation system.

[0005] Therefore, in order to solve the above problems, it is necessary to design a conical plug pressure compensation drip irrigation emitter. Summary of the invention

[0006] The technical problem to be solved by the present invention is to solve the deficiencies in the prior art and design a new conical plug pressure-compensating drip irrigation device. The conical plug pressure-compensating drip irrigation device has a simple structure, is easy to prepare, is low in cost, is convenient for large-scale production, and is more suitable for large-area and long-distance drip irrigation operations. A connecting piece and a drip irrigation piece are provided. The connecting piece is inserted into a capillary tube to contact a water source. The drip irrigation piece utilizes the efficient energy dissipation effect of a labyrinth flow channel so that the device of the present invention can also perform pressure compensation under low-pressure conditions, thereby ensuring stable outflow of the emitter. The problem that the existing drip irrigation emitter needs to use a punch to punch holes in a PE pipe before use in order to install the drip irrigation emitter and the existing drip irrigation emitter is prone to clogging is solved.

[0007] The solution adopted by the present invention to solve the technical problem is:

[0008] A conical plug pressure compensating drip emitter,

[0009] It is characterized in that

[0010] It comprises a connecting piece and a drip irrigation piece, wherein the connecting piece is fixed on the side of the drip irrigation piece.

[0011] The connecting piece and the drip irrigation piece are connected via a connecting device.

[0012] The connecting piece comprises a plug and a connecting pipe.

[0013] The plug adopts a conical structure, and the connecting pipe is fixed on the bottom surface of the plug.

[0014] The plug is provided with a water inlet, the connecting pipe is provided with a water outlet, and the water inlet and the water outlet are connected.

[0015] The drip irrigation part comprises an energy dissipation part and a drip irrigation part, wherein the drip irrigation part is fixed to the side of the energy dissipation part.

[0016] The energy dissipation part is hollow inside.

[0017] A pressure compensation gasket is arranged in the energy dissipation part, and the pressure compensation gasket divides the inner cavity of the energy dissipation part into an upper inner cavity and a lower inner cavity.

[0018] A flow channel is provided in the lower inner cavity, and the side of the pressure compensation gasket is in close contact with the flow channel in the lower inner cavity.

[0019] The flow channel comprises a flow channel water inlet, a flow channel unit and a flow channel water outlet. Water flows into the flow channel from the flow channel water inlet, passes through the flow channel unit and then flows out through the flow channel water outlet.

[0020] The energy dissipation part is provided with a guide groove inside, and the guide groove connects the upper inner cavity and the water inlet of the flow channel.

[0021] The water outlet of the flow channel is connected to the lower inner cavity,

[0022] The side of the energy dissipation part is provided with a water outlet of a water emitter, and the water outlet of the water emitter is communicated with the lower inner cavity.

[0023] The drip irrigation part is provided with a drip irrigation hole, and the drip irrigation hole corresponds to the water outlet of the emitter.

[0024] As a preferred embodiment of the present invention, a flow passage is provided inside the connecting device, and the flow passage connects the water outlet of the connecting piece and the upper inner cavity.

[0025] The connecting device comprises a connecting plate and a fixing device, wherein the connecting plate connects the energy dissipation part and the fixing device.

[0026] The fixing device is provided with a connecting groove and a fixing hole at one end close to the connecting piece.

[0027] The connecting pipe extends into the fixing hole, and the water outlet corresponds to the flow passage.

[0028] The connecting groove is provided with a first slide rail and a second slide rail, the first slide rail and the second slide rail have the same structure, a slider is fitted in the first slide rail and the second slide rail, and a fixed plug is provided between the two sliders.

[0029] The side of the connecting pipe is provided with a first fixing groove, a second fixing groove and a third fixing groove, wherein the first fixing groove is fixed between the second fixing groove and the third fixing groove.

[0030] The end of the fixing plug close to the connecting pipe is inserted into the first fixing groove.

[0031] The end of the first sliding block close to the connecting pipe is inserted into the second fixing groove.

[0032] The end of the second sliding block close to the connecting pipe is inserted into the third fixing groove.

[0033] A side of the fixed plug block close to the connecting pipe is provided with a curved surface that fits the surface of the connecting pipe.

[0034] As a preferred embodiment of the present invention, the flow channel unit includes a plurality of buffer flow channels and a plurality of bifurcated flow channels.

[0035] As a preferred embodiment of the present invention, the side of the fixing hole is connected with an elastic body.

[0036] The end of the connecting pipe is provided with an extension piece,

[0037] The elastic body is a cylindrical structure.

[0038] The elastic body is provided with a connecting hole which fits the surface of the extension piece.

[0039] As a preferred embodiment of the present invention, a buffer block is arranged in the buffer flow channel.

[0040] As a preferred embodiment of the present invention, the plug is provided with a filter yarn at a position corresponding to the water inlet.

[0041] As a preferred embodiment of the present invention, the elastic body is made of rubber material.

[0042] As a preferred embodiment of the present invention, the energy dissipation portion adopts a cylindrical structure, and the pressure compensation gasket is a round pancake-shaped elastic structure made of silicone.

[0043] As a preferred embodiment of the present invention, a connecting rod is provided on the side of the drip irrigation part.

[0044] The other end of the connecting rod is connected to a baffle plate, and a gap is provided between the baffle plate and the end of the drip irrigation part to form a drip irrigation belt for water flow to flow out.

[0045] As a preferred embodiment of the present invention, the width of the buffer flow channel is 0.5-2 mm, and the depth of the bifurcated labyrinth flow channel is 0.5-2 mm.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] 1. The device of the present invention provides a conical plug pressure compensation drip irrigation emitter, which is provided with a connector and a drip irrigation member. The connector plug is different from the plug of a traditional emitter, and adopts a conical structure, which can be directly installed on the capillary tube, eliminating the step of punching a hole with a punching member, and reducing the installation time of the drip irrigation emitter. The emitter has a simple overall structure, is easy to prepare, is low in cost, is easy to mass produce, and is more suitable for large-area and long-distance drip irrigation operations.

[0048] 2. The connector and the drip irrigation member of the conical plug pressure compensation drip irrigation emitter of the present invention are connected in a detachable manner. When the emitter is blocked, the conical plug can be separated from the other devices by adjusting the fixing device. Only part of the device needs to be replaced instead of the entire device, which greatly reduces the cost.

[0049] 3. The flow channel of the drip irrigation piece adopts a labyrinth flow channel. By utilizing the efficient energy dissipation effect of the labyrinth flow channel, the pressure compensation emitter can also perform pressure compensation under low pressure conditions, thereby ensuring the stable outflow of the emitter.

[0050] 4. A filter yarn is arranged at the corresponding position of the water inlet of the plug to preliminarily filter a large amount of suspended matter, organic matter, microorganisms and other impurities contained in common irrigation water sources to prevent these impurities from clogging the drip irrigation device during the irrigation process, thereby extending the service life of the device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A partial top view of a conical plug pressure compensation drip emitter proposed by the present invention;

[0052] Figure 2 A schematic diagram of a conical plug pressure compensation drip irrigation emitter connector proposed by the present invention;

[0053] Figure 3 It is a partial schematic diagram of a conical plug pressure compensation drip irrigation emitter proposed by the present invention;

[0054] Figure 4 A partial top view of a conical plug pressure compensation drip emitter proposed by the present invention;

[0055] Figure 5 A bottom view of a conical plug pressure compensation drip emitter according to an embodiment of the present invention;

[0056] Figure 6 It is a schematic diagram of the interior of a conical plug pressure compensation drip irrigation emitter proposed by the present invention;

[0057] Figure 7 It is a partial schematic diagram of a conical plug pressure compensation drip irrigation emitter connection device proposed by the present invention;

[0058] Figure 8 It is a partial schematic diagram of a conical plug pressure compensation drip irrigation emitter connection device proposed by the present invention;

[0059] Fig. 9 A side view of a conical plug pressure compensation drip emitter according to an embodiment of the present invention;

[0060] Fig.10 A side view of a conical plug pressure compensation drip emitter according to an embodiment of the present invention;

[0061] Fig.11 The present invention is a side view of a conical plug pressure compensating drip emitter according to an embodiment of the present invention.

[0062] Description of reference numerals:

[0063] 1. Connectors,

[0064] 1-1, plug,

[0065] 1-1-1, water inlet,

[0066] 1-2, connecting pipe,

[0067] 1-2-1, water outlet,

[0068] 1-2-2, first fixing groove,

[0069] 1-2-3, the second fixing slot,

[0070] 1-2-4, the third fixing slot,

[0071] 2. Drip irrigation parts,

[0072] 2-1. Energy dissipation department,

[0073] 2-1-1, Pressure compensation gasket,

[0074] 2-1-2, flow channel,

[0075] 2-1-3, water inlet of flow channel,

[0076] 2-1-4, flow channel unit,

[0077] 2-1-5, runner outlet,

[0078] 2-1-6, buffer flow channel,

[0079] 2-1-7, buffer block,

[0080] 2-1-8, bifurcated flow channel,

[0081] 2-1-9, diversion trough,

[0082] 2-1-10, water outlet of the sprinkler,

[0083] 2-2, Drip irrigation department,

[0084] 2-2-1, drip irrigation hole,

[0085] 3. Connecting device,

[0086] 3-1, flow channel,

[0087] 3-2, connecting plate,

[0088] 3-3. Fixing device,

[0089] 3-4, connection slot,

[0090] 3-5, fixing holes,

[0091] 3-6, Elastomer,

[0092] 3-7, connection hole,

[0093] 3-8, first slide rail,

[0094] 3-9, the second slide rail,

[0095] 3-10, Slider,

[0096] 3-11, fixed plug,

[0097] 3-12, curved surface,

[0098] 4. Connecting rod,

[0099] 4-1. Baffle,

[0100] 4-2. Drip irrigation tape. DETAILED DESCRIPTION

[0101] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0102] It should be noted that the structures, colors, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0103] At the same time, in the description of the present invention, it should be understood that the terms "one end", "the other end", "middle", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0104] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0105] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0106] like Figure 1-Figure 10 The present invention proposes a conical plug pressure compensation drip irrigation emitter, which includes a connector 1 and a drip irrigation member 2. The connector 1 is fixed to the side of the drip irrigation member 2. The connector 1 is inserted into a PE pipe to absorb water flow. The water flow enters from the connector 1 and flows out after dissipating energy through the drip irrigation member 2 to perform drip irrigation operations.

[0107] The connector 1 and the drip irrigation component 2 are connected via a connecting device 3, and the connector 1 and the drip irrigation component 2 are respectively fixed on both sides of the connecting device 3, and the two are connected via the connecting device 3. When the device fails due to long-term use and needs to be repaired, only the failed component needs to be replaced, and there is no need to replace the entire device. When the plug 1-1 of the connector 1 is inserted and there is no blockage in the internal waterway of the connector 1, only the drip irrigation component 2 needs to be paid attention to. When it is blocked, the drip irrigation component 2 can be replaced, thereby eliminating the process of inserting the plug 1-1 of the connector 1, thereby improving the installation efficiency.

[0108] Specifically, holes can be provided on both sides of the connecting device 3, corresponding rod-shaped structures can be provided for inserting into the connecting member 1 and the drip irrigation member 2, and fixed by means of a latch or a groove provided in the hole, or connected by means of a slide rail and a slider 3-10, or directly fixed by means of a threaded connection, so that the connecting member 1 and the drip irrigation member 2 can be detachably connected.

[0109] The connector 1 comprises a plug 1-1 and a connecting pipe 1-2. The plug 1-1 is inserted into the PE pipe to absorb water, and the connecting pipe 1-2 is connected to the drip irrigation component to send water into the drip irrigation component 2 for energy dissipation before flowing out.

[0110] The plug 1-1 adopts a conical structure, the connecting pipe 1-2 is fixed on the bottom surface of the plug 1-1, and the top surface is a sharp structure, which can be directly inserted into the PE pipe, eliminating the step of punching holes with a punching piece, and reducing the time for installing the drip irrigation emitter.

[0111] In addition, the shape of the plug of the traditional drip irrigation device seriously affects the capillary head loss, which is the basis for evaluating irrigation uniformity. Therefore, the effects of the conical plug 1-1 and the traditional plug on the capillary head loss are compared, and the head losses of the two capillary tubes under different flow rates are obtained by numerical simulation. As shown in Table 1, it can be obtained that the difference between the two capillary head losses under different flow rates is small. When the capillary flow rate is small, the capillary head loss of the conical plug 1-1 used in the device of the present invention is less than that of the traditional plug. Therefore, the conical plug used in the device of the present invention has advantages over the traditional plug under low flow conditions.

[0112] Table 1 Comparison of head loss of two capillary tubes

[0113]

[0114] The plug 1-1 is provided with a water inlet 1-1-1, and the connecting pipe 1-2 is provided with a water outlet 1-2-1. The water inlet 1-1-1 and the water outlet 1-2-1 are connected. Water flows from the PE pipe through the water inlet 1-1-1 into the water outlet 1-2-1 and flows into the drip irrigation component 2 along the water outlet 1-2-1.

[0115] The drip irrigation part 2 includes an energy dissipation part 2-1 and a drip irrigation part 2-2. The drip irrigation part 2-2 is fixed to the side of the energy dissipation part 2-1. The energy dissipation part 2-1 is used to dissipate energy of the water flow and change the flow rate of the water flow. The water flow after energy dissipation flows into the drip irrigation part 2-2 and flows out through the drip irrigation hole 2-2-1 set in the drip irrigation part 2-2.

[0116] In addition, the drip irrigation part 2-2 also has the function of preventing back suction, which can effectively prevent soil from entering the internal flow channel 2-1-2 of the emitter.

[0117] The energy dissipation part 2-1 is hollow inside, and an energy dissipation structure is arranged inside. Energy is dissipated after the water flow enters, and drip irrigation operation is carried out after energy dissipation.

[0118] A pressure compensation gasket 2-1-1 is provided in the energy dissipation part 2-1. The pressure compensation gasket 2-1-1 divides the inner cavity of the energy dissipation part 2-1 into an upper inner cavity and a lower inner cavity. After the water flows from the outlet 1-2-1 through the flow channel 3-1 provided in the connecting device 3, it enters the energy dissipation part 2-1 and first contacts the pressure compensation gasket 2-1-1. The pressure compensation gasket 2-1-1 is used to relieve part of the impact force first, and then enters the flow channel 2-1-2 in the energy dissipation part 2-1 for energy dissipation.

[0119] A flow channel 2-1-2 is arranged in the lower inner cavity, and a labyrinth flow channel is selected as the flow channel. The side of the pressure compensation gasket 2-1-1 is close to the flow channel 2-1-2 in the lower inner cavity. The water flow contacts the pressure compensation gasket 2-1-1 first and then enters the flow channel 2-1-2.

[0120] The flow channel 2-1-2 includes a flow channel water inlet 2-1-3, a flow channel unit 2-1-4 and a flow channel water outlet 2-1-5. Water flows into the flow channel from the flow channel water inlet 2-1-3, passes through the flow channel unit 2-1-4 and then flows out through the flow channel water outlet 2-1-5.

[0121] A guide groove 2-1-9 is provided inside the energy dissipation part 2-1, and the guide groove 2-1-9 connects the upper inner cavity and the flow channel water inlet 2-1-3. Water flows into the upper inner cavity from the flow channel 3-1 and enters the flow channel 2-1-2 in the lower inner cavity through the guide groove 2-1-9.

[0122] The flow channel outlet 2-1-5 is connected to the lower inner cavity, and the water flows out of the flow channel outlet 2-1-5 and enters the lower inner cavity. The side of the energy dissipation part 2-1 is provided with an emitter outlet 2-1-10, which is connected to the lower inner cavity, and the water flows into the drip irrigation part 2-2 through the emitter outlet 2-1-10 connected to the lower inner cavity.

[0123] The drip irrigation part 2-2 is provided with a drip irrigation hole 2-2-1, which corresponds to the emitter outlet 2-1-10, and water flows out through the drip irrigation hole 2-2-1 to complete the drip irrigation operation, thereby preventing water from flowing directly out of the emitter outlet 2-1-10 to cause back suction.

[0124] A flow channel 3 - 1 is provided inside the connecting device 3 , and the flow channel 3 - 1 connects the water outlet and the upper inner cavity of the connecting piece 1 , and is used for transmitting water flow from the connecting piece 1 to the drip irrigation piece 2 .

[0125] The connecting device 3 includes a connecting plate 3-2 and a fixing device 3-3. The connecting plate 3-2 connects the energy dissipation part 2-1 and the fixing device 3-3. The connecting plate 3-2 is fixed to the side of the energy dissipation device, and the fixing point is fixed to the side of the connecting plate 3-2. The fixing device 3-3 and the connecting member 1 are detachably connected to realize the detachable connection between the connecting member 1 and the drip irrigation member 2. When the drip irrigation member 2 or the connecting member 1 fails, only part of the device needs to be replaced instead of the entire device, which greatly reduces the cost.

[0126] A connecting groove 3-4 and a fixing hole 3-5 are provided at one end of the fixing device 3-3 close to the connecting piece 1. The fixing hole 3-5 is provided on the side directly opposite to the connecting pipe 1-2, and the connecting groove 3-4 is provided in a direction perpendicular to the connecting pipe 1-2, and is used to assist the slider 3-10 in fixing the connecting pipe 1-2. The connecting pipe 1-2 of the connecting piece 1 is inserted into the fixing hole 3-5, and the slider 3-10 in the connecting groove 3-4 is inserted from the side of the connecting pipe 1-2, which plays a fixing and limiting role on the connecting pipe 1-2, thereby ensuring the stability of the connection between the connecting piece 1 and the connecting device 3.

[0127] The connecting pipe 1-2 extends into the fixing hole 3-5, and the water outlet 1-2-1 corresponds to the flow passage 3-1, ensuring smooth flow of water through the pipeline.

[0128] A first slide rail 3-8 and a second slide rail 3-9 are arranged in the connecting groove 3-4. The first slide rail 3-8 and the second slide rail 3-9 have the same structure. Slide blocks 3-10 are fitted in the first slide rail 3-8 and the second slide rail 3-9. A fixed plug block 3-11 is arranged between the two slide blocks 3-10. The two slide blocks 3-10 move in the slide rails, driving the fixed plug block 3-11 to move in the connecting groove 3-4, so that the fixing method of the connecting tube 1-2 is detachable.

[0129] When the slider 3-10 and the fixed plug 3-11 contact the connecting pipe 1-2, they fix the connecting pipe 1-2, restrict the movement of the connecting pipe 1-2, and ensure that the connecting pipe 1-2 is fixed in the fixing hole 3-5. When the slider 3-10 and the fixed plug 3-11 move and disconnect the connecting pipe 1-2, the connecting pipe 1-2 can move freely in the fixing hole 3-5, thereby disconnecting the connection between the connecting member 1 and the fixing device 3-3, so that the connecting member 1 and the drip irrigation member 2 are separated. Therefore, the replacement of the connecting member 1 or the drip irrigation member 2 can be completed according to the actual situation on site, which greatly reduces the cost.

[0130] The side of the connecting pipe 1-2 is provided with a first fixing groove 1-2-2, a second fixing groove 1-2-3 and a third fixing groove 1-2-4. The first fixing groove 1-2-2 is fixed between the second fixing groove 1-2-3 and the third fixing groove 1-2-4. Two sliders 3-10 and a fixed plug block 3-11 limit the connecting pipe 1-2 to ensure the stability of the connection between the connecting pipe 1-2 and the fixing device 3-3.

[0131] One end of the fixed plug 3-11 close to the connecting pipe 1-2 is inserted into the first fixed groove 1-2-2, one end of the first slider 3-10 close to the connecting pipe 1-2 is inserted into the second fixed groove 1-2-3, and one end of the second slider 3-10 close to the connecting pipe 1-2 is inserted into the third fixed groove 1-2-4. The connecting pipe 1-2 is provided with a fixed groove at the position where it contacts the fixed plug 3-11 and the slider 3-10, which plays a positioning role for the fixed plug 3-11 and the slider 3-10, and prevents the fixed plug 3-11 and the slider 3-10 from moving during use of the device, so that their positioning ability for the connecting pipe 1-2 is weakened, or the fixed plug 3-11 and the slider 3-10 are directly disconnected from the connecting pipe 1-2, so that the connecting piece 1 and the drip irrigation piece 2 are separated, and the drip irrigation operation cannot be completed correctly, or the connecting piece 1 is sucked back, and mud enters the capillary tube through the outlet 1-2-1.

[0132] A curved surface 3-12 that fits the surface of the connecting pipe 1-2 is provided on one side of the fixed plug 3-11 close to the connecting pipe 1-2, thereby ensuring the stability of the connection between the fixed plug 3-11 and the connecting pipe 1-2.

[0133] The flow channel unit 2-1-4 includes a plurality of buffer flow channels 2-1-6 and a plurality of bifurcated flow channels 2-1-8. The buffer flow channels 2-1-6 and the bifurcated flow channels 2-1-8 are interlaced. After passing through the buffer flow channels 2-1-6 and the bifurcated flow channels 2-1-8, the water flows into the next buffer flow channel 2-1-6, and the energy dissipation is continuously repeated until the water flows completely through the flow channel.

[0134] An elastic body 3-6 is connected to the side of the fixing hole 3-5, an extension piece is provided at the end of the connecting pipe 1-2, the elastic body 3-6 is a cylindrical structure, the elastic body 3-6 is provided with a connecting hole 3-7 that fits the surface of the extension piece, and the extension piece is inserted into the connecting hole 3-7 in the elastic body 3-6, which can play a role in water stopping and fixing and prevent water leakage.

[0135] A buffer block 2-1-7 is provided in the buffer channel 2-1-6. When the water flow hits the buffer block 2-1-7, the flow direction changes sharply and is divided into two streams. The water flow velocity changes suddenly, so that a vortex is generated inside the buffer channel 2-1-6. The vortex continuously dissipates energy. At the same time, the two streams collide at the water inlet of the bifurcated channel unit 2-1-4, further consuming the remaining energy. Therefore, the channel 2-1-2 of the device of the present invention has excellent energy dissipation capacity.

[0136] The hydraulic performance test of the emitter was carried out in the laboratory, and the flow rate of the emitter under different pressures was obtained. The starting pressure of the bifurcated channel 2-1-8 pressure compensation emitter is 5m, the emitter flow rate is 6.16L / h, and the pressure compensation range is 5-20m. The emitter has good pressure compensation performance and can adapt to a larger pressure range.

[0137] The plug 1-1 is provided with a filter yarn at the position corresponding to the water inlet 1-1-1, which preliminarily filters a large amount of suspended matter, organic matter, microorganisms and other impurities contained in common irrigation water sources to prevent these impurities from clogging the drip irrigation device during the irrigation process.

[0138] The elastic body 3-6 is made of rubber material, which not only has good elasticity and sealing, but also can adapt to extensions of different shapes and sizes to ensure close contact and connection, and effectively prevent water leakage. Because there may be a risk of water leakage at the connection between the fixing device 3-3 and the connecting pipe 1-2, the elastic body 3-6 made of rubber material is connected to the extension of the connecting pipe 1-2 to ensure the sealing of the connection between the connecting pipe 1-2 and the fixing device 3-3.

[0139] The energy dissipation part 2-1 adopts a cylindrical structure, and the pressure compensation gasket 2-1-1 inside it is a round pancake-shaped elastic structure made of silicone. The cylindrical structure of the energy dissipation part 2-1 reduces the edges and corners of the device, reduces the possibility of wear, and prolongs the service life of the device. The pressure compensation gasket 2-1-1 inside it also adopts its corresponding round pancake shape, which maximizes the use of the space in the inner cavity of the energy dissipation part 2-1 and improves its use efficiency.

[0140] like Fig.11As shown, a connecting rod 4 is provided on the side of the drip irrigation part 2-2, and a baffle 4-1 is connected to the other end of the connecting rod 4. A gap is provided between the baffle 4-1 and the end of the drip irrigation part 2-2 to form a drip irrigation belt 4-2 for water flow to flow out. After the water flows out of the drip irrigation hole 2-2-1, it is blocked by the baffle 4-1. The existence of the baffle 4-1 blocks the water flow flowing out of the drip irrigation hole 2-2-1, and the water no longer flows out in a straight line, but is sprayed divergently to the surroundings, which can ensure that the water flow covers more evenly, reduce excessive concentration or loss of water in a certain area, and thus improve the uniformity of irrigation.

[0141] The width of the buffer flow channel 2-1-6 is 0.5-2mm, and the depth of the bifurcated maze flow channel 2-1-2 is 0.5-2mm. The experimenters conducted a hydraulic performance test of the emitter in the laboratory, obtained the flow rate of the emitter under a pressure of 2-10m, and fitted the QH curve to obtain the flow index of the emitter of the device of the present invention, so that the conical plug pressure compensation drip irrigation emitter of the device of the present invention has good pressure compensation performance and can adapt to a larger pressure range.

[0142] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0143] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A conical plug pressure compensating drip emitter, It is characterized in that It comprises a connecting piece (1) and a drip irrigation piece (2), wherein the connecting piece (1) is fixed to the side of the drip irrigation piece (2). The connecting piece (1) and the drip irrigation piece (2) are connected via a connecting device (3). The connecting piece (1) comprises a plug (1-1) and a connecting pipe (1-2). The plug (1-1) has a conical structure, and the connecting pipe (1-2) is fixed to the bottom surface of the plug (1-1). The plug (1-1) is provided with a water inlet (1-1-1), the connecting pipe (1-2) is provided with a water outlet (1-2-1), the water inlet (1-1-1) and the water outlet (1-2-1) are in communication. The drip irrigation component (2) comprises an energy dissipation portion (2-1) and a drip irrigation portion (2-2), wherein the drip irrigation portion (2-2) is fixed to a side portion of the energy dissipation portion (2-1). The energy dissipation part (2-1) is hollow inside. A pressure compensation gasket (2-1-1) is arranged in the energy dissipation part (2-1), and the pressure compensation gasket (2-1-1) divides the inner cavity of the energy dissipation part (2-1) into an upper inner cavity and a lower inner cavity. A flow channel (2-1-2) is provided in the lower inner cavity, and a side portion of the pressure compensation gasket (2-1-1) is in close contact with the flow channel (2-1-2) in the lower inner cavity. The flow channel (2-1-2) comprises a flow channel water inlet (2-1-3), a flow channel unit (2-1-4) and a flow channel water outlet (2-1-5); water flows into the flow channel from the flow channel water inlet (2-1-3), passes through the flow channel unit (2-1-4), and then flows out through the flow channel water outlet (2-1-5). A guide groove (2-1-9) is provided inside the energy dissipation portion (2-1), and the guide groove (2-1-9) connects the upper inner cavity and the flow channel water inlet (2-1-3). The flow channel water outlet (2-1-5) is in communication with the lower inner cavity. A water outlet (2-1-10) of a water emitter is arranged on the side of the energy dissipation portion (2-1), and the water outlet (2-1-10) of the water emitter is communicated with the lower inner cavity. The drip irrigation part (2-2) is provided with a drip irrigation hole (2-2-1), and the drip irrigation hole (2-2-1) corresponds to the water outlet (2-1-10) of the sprinkler.

2. A conical plug pressure compensating drip emitter as claimed in claim 1, It is characterized in that The connection device (3) is provided with a flow passage (3-1) inside, and the flow passage (3-1) connects the water outlet of the connection piece (1) and the upper inner cavity. The connecting device (3) comprises a connecting plate (3-2) and a fixing device (3-3), wherein the connecting plate (3-2) connects the energy dissipation portion (2-1) and the fixing device (3-3). The fixing device (3-3) is provided with a connecting groove (3-4) and a fixing hole (3-5) at one end close to the connecting piece (1). The connecting pipe (1-2) extends into the fixing hole (3-5), the water outlet (1-2-1) corresponds to the flow passage (3-1), A first slide rail (3-8) and a second slide rail (3-9) are arranged in the connecting groove (3-4); the first slide rail (3-8) and the second slide rail (3-9) have the same structure; a slider (3-10) fits in the first slide rail (3-8) and the second slide rail (3-9); a fixed plug block (3-11) is arranged between the two sliders (3-10); The side of the connecting pipe (1-2) is provided with a first fixing groove (1-2-2), a second fixing groove (1-2-3) and a third fixing groove (1-2-4), the first fixing groove (1-2-2) being fixed between the second fixing groove (1-2-3) and the third fixing groove (1-2-4), One end of the fixing plug (3-11) close to the connecting pipe (1-2) is inserted into the first fixing groove (1-2-2). An end of the first sliding block (3-10) close to the connecting pipe (1-2) is inserted into the second fixing groove (1-2-3). An end of the second sliding block (3-10) close to the connecting pipe (1-2) is inserted into the third fixing groove (1-2-4). A side of the fixed plug block (3-11) close to the connecting pipe (1-2) is provided with a curved surface (3-12) that fits the surface of the connecting pipe (1-2).

3. A conical plug pressure compensating drip emitter as claimed in claim 1, It is characterized in that The flow channel unit (2-1-4) comprises a plurality of buffer flow channels (2-1-6) and a plurality of bifurcated flow channels (2-1-8).

4. A conical plug pressure compensating drip emitter as claimed in claim 2, It is characterized in that The side of the fixing hole (3-5) is connected to an elastic body (3-6). An extension piece is provided at the end of the connecting pipe (1-2). The elastic body (3-6) is a cylindrical structure. The elastic body (3-6) is provided with a connection hole (3-7) that fits the surface of the extension piece.

5. A conical plug pressure compensating drip emitter as claimed in claim 3, It is characterized in that A buffer block (2-1-7) is arranged in the buffer flow channel (2-1-6).

6. A conical plug pressure compensating drip emitter as claimed in claim 1, It is characterized in that The plug (1-1) is provided with a filter yarn at a position corresponding to the water inlet (1-1-1).

7. A conical plug pressure compensating drip emitter as claimed in claim 4, It is characterized in that The elastic body (3-6) is made of rubber material.

8. A conical plug pressure compensating drip emitter as claimed in claim 1, It is characterized in that The energy dissipation portion (2-1) adopts a cylindrical structure, and the pressure compensation gasket (2-1-1) is a round cake-shaped elastic structure made of silicone.

9. A conical plug pressure compensating drip emitter as claimed in claim 1, It is characterized in that A connecting rod (4) is provided on the side of the drip irrigation part (2-2). The other end of the connecting rod (4) is connected to a baffle plate (4-1), and a gap is provided between the baffle plate (4-1) and the end of the drip irrigation part (2-2), forming a drip irrigation belt (4-2) for water flow to flow out.

10. A conical plug pressure compensating drip emitter as claimed in claim 3, It is characterized in that The width of the buffer flow channel (2-1-6) is 0.5-2 mm, and the depth of the bifurcated labyrinth flow channel (2-1-2) is 0.5-2 mm.

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