Pressure compensation type micro sprayer

Abstract

The utility model discloses a pressure compensation type micro sprayer which comprises a nozzle, a fluid cavity for fluid to pass through is formed in the nozzle, and a fluid inlet and a fluid outlet are formed in the two ends of the fluid cavity respectively. The frame is connected to the nozzle close to the fluid outlet; the rotating wheel is provided with a runner; one end of the runner is movably connected with the frame, and the other end is matched with the nozzle, so that the fluid cavity is communicated with the runner; a fluid inlet of the nozzle is connected with a pressure compensation piece, and a cavity communicated with the fluid cavity is formed in the pressure compensation piece; the end, located in the cavity and away from the fluid cavity, of the pressure compensation piece is connected with a pressure compensation piece capable of deforming, and a pressure compensation cavity is formed between the pressure compensation piece and the cavity. The pressure compensation sheet can deform along the direction of the fluid in the cavity under water pressure, so that the consistency of the flow of the fluid is always ensured within a certain pressure difference range regardless of the change of the pressure, and the consistency of water and nutrients obtained by crops is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-sprinklers, in particular to a pressure-compensated micro-sprinkler. Background Art

[0002] In the context of contemporary society, water resources are becoming increasingly scarce. Water-saving irrigation, as an important way in the development of agricultural irrigation and water-saving, is an inevitable trend in the development of resource-saving and environmentally friendly modern agriculture. Micro sprinklers are a new sprinkler irrigation technology that has been widely promoted in recent years. That is, through reasonable design, the water from the water pump pipeline is evenly distributed through the unique structural design of the micro sprinkler, and the pump water is evenly dispersed and sprayed. The rotation of the micro-spray is achieved through the pressure of the water pump, and finally a sufficiently large spraying range is met to achieve the effect of micro-spraying. This sprinkler irrigation technology directly controls the spraying range and spraying amount by adjusting the operating height of the micro sprinkler, ending the era of wasting water resources by flooding, and has a significant effect of saving water and promoting production.

[0003] This type of rotary micro sprinkler is widely used in irrigation operations such as lawns, flower beds, and vegetable fields because of its simple structure and easy use. However, its disadvantage is that the flow rate of existing micro sprinklers is usually proportional to the pressure. The greater the pressure, the greater the flow rate, which will lead to a situation where the amount of water obtained by the front-end crops is inconsistent with the water and nutrients obtained in the middle and end, thereby affecting the crop yield and quality. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a pressure-compensating micro-sprinkler, which is connected with a pressure compensating part and a pressure compensating sheet at the fluid inlet of the nozzle; the pressure compensating sheet will deform along the direction of the fluid in the cavity under water pressure, and within a certain pressure difference range, no matter how the pressure changes, the consistency of the fluid flow rate is always guaranteed, thereby ensuring the consistency of water and nutrients obtained by crops.

[0006] (II) Technical solution

[0007] The solution adopted by the utility model to solve the above technical problems is a pressure compensation type micro sprinkler, comprising

[0008] A nozzle, wherein a fluid cavity is provided inside the nozzle for fluid to pass through, and a fluid inlet and a fluid outlet are formed at two ends of the fluid cavity respectively;

[0009] a frame connected to the nozzle near the fluid outlet;

[0010] A runner is provided with a flow channel; one end of the runner is movably connected to the frame, and the other end cooperates with the nozzle so that the fluid cavity and the flow channel are communicated;

[0011] Among them, the nozzle is connected to a pressure compensation part at its fluid inlet, and a cavity communicating with the fluid cavity is arranged inside the pressure compensation part; the pressure compensation part is connected to a pressure compensation sheet that can be deformed at one end of the cavity away from the fluid cavity, and a pressure compensation cavity is formed between the pressure compensation sheet and the cavity.

[0012] Specifically, after the water pressure increases, the pressure compensation plate will deform along the fluid direction of the cavity toward the direction close to the nozzle, so that the cross-sectional area of ​​the pressure compensation cavity becomes smaller, thereby reducing the fluid flow rate entering the nozzle; after the water pressure decreases, the deformation of the pressure compensation plate will be restored, so that the cross-sectional area of ​​the pressure compensation cavity becomes relatively larger, thereby increasing the fluid flow rate entering the nozzle; thereby, the cross-sectional area of ​​the pressure compensation cavity under different water pressures can be adjusted, so that the cross-sectional area of ​​the pressure compensation cavity under different water pressures remains consistent, thereby always ensuring that the fluid flow rate in the nozzle is consistent.

[0013] By adopting the above scheme, a pressure compensating part and a pressure compensating sheet are connected to the fluid inlet of the nozzle; the pressure compensating sheet will deform along the direction of the fluid in the cavity under water pressure. Within a certain pressure difference range, no matter how the pressure changes, the consistency of the fluid flow rate is always guaranteed, thereby ensuring the consistency of water and nutrients obtained by crops.

[0014] In some embodiments, the pressure compensation part includes a mating portion that cooperates with the nozzle, and a mounting portion for mounting the pressure compensation sheet located at an end of the mating portion away from the nozzle; the cavity is disposed in the mating portion; and the pressure compensation cavity is formed between the pressure compensation sheet and the mating portion.

[0015] In some embodiments, an installation cavity is provided in the installation portion; an open end communicating with the outside is provided at one end of the installation cavity away from the nozzle to expose the pressure compensation sheet; the pressure compensation sheet can be deformed along the direction of the fluid in the cavity.

[0016] By adopting the above scheme, the setting of the open end can enable the fluid to act on the pressure compensation sheet, so that the pressure compensation sheet can be deformed along the direction of the fluid in the cavity, thereby adjusting the cross-sectional area of ​​the pressure compensation cavity.

[0017] In some embodiments, the mounting portion includes an annular wall connected to one end of the mating portion away from the nozzle, and the end of the annular wall away from the mating portion extends downward to form a plurality of clamping portions for clamping the pressure compensation plate, and the plurality of clamping portions are arranged at intervals along the circumferential direction; and, open ends are provided on opposite sides of the annular wall, and the two open ends are arranged between two clamping portions arranged at intervals.

[0018] By adopting the above scheme, the setting of the clamping part can firmly install the pressure compensation plate on the mounting part to limit its movement in the radial direction and enable it to deform along the axial direction; the setting of the open end allows the fluid to enter the pressure compensation cavity in the mounting part through the gap between the two clamping parts and the open end and then enter the cavity of the matching part; at the same time, the fluid will apply pressure to the pressure compensation plate, causing it to deform along the axial direction, thereby adjusting the cross-sectional area of ​​the pressure compensation cavity and thus adjusting the flow rate of the fluid.

[0019] In some embodiments, a fluid channel is formed between the open end and the cavity of the mating portion, and the fluid channel is sequentially formed with a first flow channel, a second flow channel and a third flow channel from the outside to the inside; and a cross-section of the first flow channel is larger than a cross-section of the second flow channel, and a cross-section of the second flow channel is larger than a cross-section of the third flow channel.

[0020] By adopting the above solution, the cross-sections of the first flow channel, the second flow channel and the third flow channel gradually become smaller, which can buffer the incoming fluid so as to better adjust the flow rate of the fluid.

[0021] In some embodiments, the annular wall is located above the pressure compensation sheet and is recessed in a direction away from the pressure compensation sheet to form a deformation groove for avoiding the pressure compensation sheet; the two opening ends can penetrate the deformation groove so that the deformation groove, the fluid channel and the cavity are connected.

[0022] By adopting the above scheme, after the fluid enters from the open end, it will flow above the pressure compensation plate and form a pressure compensation cavity; during the deformation of the pressure compensation plate, the cross-sectional area of ​​the pressure compensation cavity can be continuously adjusted, thereby controlling the flow rate to remain consistent under different water pressures.

[0023] In some embodiments, a first clamping wall is provided at the connection between the inner side of the annular wall and the clamping portion, a second clamping wall is formed at one end of the clamping portion away from the annular wall, and a clamping space for clamping the pressure compensation sheet is formed between the first clamping wall and the second clamping wall.

[0024] By adopting the above scheme, the first clamping wall is two semi-annular structures. Under the action of the first clamping wall and multiple second clamping walls, the periphery of the pressure compensation sheet can be firmly clamped to prevent the middle part thereof from separating from the pressure compensation part during the deformation process, thereby ensuring the deformation process of the pressure compensation sheet.

[0025] In some embodiments, the annular wall is located at its outer edge and extends axially in a direction close to the nozzle to form an extension wall, and a gap is formed between the extension wall and the matching portion; the nozzle includes a plug-in portion that can be adapted in the gap, and the matching portion is adapted in the cavity of the nozzle.

[0026] By adopting the above solution, the installation stability between the pressure compensation component and the nozzle is improved through the cooperation between the matching portion and the cavity of the nozzle, and the cooperation between the plug-in portion and the gap, thereby ensuring the flow stability of the fluid.

[0027] In some embodiments, it also includes an outer frame that cooperates with the frame, the nozzle is arranged in the outer frame, and the outer frame includes a connecting wall connected to the outer wall of the nozzle located between the fluid inlet and the fluid outlet, so that an upper cavity and a lower cavity separated from each other are formed in the outer frame, the upper half of the nozzle is placed in the upper cavity, and the lower half of the nozzle is placed in the lower cavity; and an opening is provided at the bottom end of the lower cavity, and the opening can connect the pressure compensation cavity with the outside world.

[0028] In some embodiments, the pressure compensation member is placed in the lower cavity and connected to the lower half of the nozzle; the rotating wheel can extend into the upper cavity and be connected to the upper half of the nozzle.

[0029] In some embodiments, the nozzle is integrally formed on the outer frame; the frame includes a mounting sleeve mounted on the upper half of the outer frame, and mounting arms extending from opposite ends of the mounting sleeve in a direction away from the outer frame, and the two mounting arms are annular and connected together; a protrusion is provided on the outer wall of the outer frame, and the mounting sleeve is provided with a recessed portion adapted to the protrusion to achieve a fastened installation between the frame and the outer frame; and the top outer edge of the outer frame protrudes radially outward to form a limiting portion, and the limiting portion abuts against the top of the mounting sleeve to limit the axial separation of the mounting sleeve; a rotating portion for mounting the runner is provided at the connection between the two mounting arms, and a rotating hole is provided at one end of the rotating portion close to the nozzle, and the runner includes a rotating shaft adapted to be in the rotating hole, so that the runner can rotate relative to the frame; and a hook is provided at the top of the frame. The wheel includes a nozzle matching portion connected to the lower end of the rotating shaft and sleeved on the flow channel outlet of the nozzle. The nozzle matching portion is provided with a flow channel, and the flow channel can guide the water sprayed from the flow channel outlet of the nozzle to the outside so as to spray crops; an annular portion is provided between the rotating shaft and the nozzle matching portion, and the annular portion can close the top of the upper cavity of the outer frame; after the fluid enters the nozzle and is sprayed through the flow channel of the wheel, the fluid will push the wheel upward, so that the water in the flow channel will be sprinkled out from the gap between the annular portion and the outer frame; and after stopping working, the wheel will automatically fall down, so that the annular portion and the top of the outer frame are connected, reaching a closed state, so as to prevent insects and impurities from entering.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the utility model designs a pressure-compensated micro-sprinkler.

[0032] (1) The utility model connects a pressure compensating member and a pressure compensating sheet at the fluid inlet of the nozzle; the pressure compensating sheet deforms along the direction of the fluid in the cavity under water pressure, and within a certain pressure difference range, regardless of how the pressure changes, the flow rate of the fluid is always guaranteed to be consistent, thereby ensuring that the crops obtain consistent water and nutrients;

[0033] (2) In the utility model, when the water pressure increases, the pressure compensation plate will deform along the fluid direction of the cavity toward the nozzle, so that the cross-sectional area of ​​the pressure compensation cavity becomes smaller, thereby reducing the fluid flow rate entering the nozzle; when the water pressure decreases, the deformation of the pressure compensation plate will be restored, so that the cross-sectional area of ​​the pressure compensation cavity becomes relatively larger, thereby increasing the fluid flow rate entering the nozzle; thereby, the cross-sectional area of ​​the pressure compensation cavity under different water pressures can be adjusted, so that the cross-sectional area of ​​the pressure compensation cavity under different water pressures remains consistent, thereby always ensuring that the fluid flow rate in the nozzle is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a schematic diagram of the structure of a pressure-compensated micro-sprinkler of the utility model;

[0036] Figure 2 This is an exploded view of a pressure-compensated micro-sprinkler of the utility model;

[0037] Figure 3 This is a schematic structural diagram of a pressure compensation type micro sprinkler of the utility model from another angle;

[0038] Figure 4 for Figure 3 Sectional view at AA;

[0039] Figure 5 for Figure 4 The enlarged schematic diagram at C in the middle;

[0040] Figure 6 for Figure 4 The enlarged schematic diagram at D in the middle;

[0041] Figure 7 for Figure 3 Sectional view at the middle BB;

[0042] Figure 8 for Figure 7 The enlarged schematic diagram at E in the middle;

[0043] Fig. 9 It is a cross-sectional view of the nozzle and the outer frame of the utility model;

[0044] Fig.10 This is a schematic diagram of the structure of the pressure compensation component of the utility model;

[0045] Fig.11 This is a schematic structural diagram of the pressure compensation component of the utility model from another angle.

[0046] The names of the components corresponding to the reference numerals in the figure are: 100, nozzle; 101, fluid cavity; 1011, fluid inlet; 1012, fluid outlet; 102, plug-in portion; 200, frame; 201, mounting sleeve; 2011, recessed portion; 202, mounting arm; 203, rotating portion; 2031, rotating hole; 204, hook; 300, rotating wheel; 301, flow channel; 302, rotating shaft; 303, nozzle matching portion; 304, annular portion; 400, pressure compensation member; 401, cavity; 402, matching portion; 403, mounting portion; 4031, mounting cavity; 4032, open end; 4033, annular wall; 4033a, deformation groove; 4033b, first clamping wall; 4034, clamping part; 4034a, second clamping wall; 4035, opening end; 4036, fluid channel; 4036a, first flow channel; 4036b, second flow channel; 4036c, third flow channel; 4037, clamping space; 4038, extension wall; 4038a, gap; 500, pressure compensation sheet; 600, pressure compensation cavity; 700, outer frame; 701, connecting wall; 702, upper cavity; 703, lower cavity; 7031, opening; 704, raised part; 705, limiting part. DETAILED DESCRIPTION

[0047] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0048] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0050] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0051] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0052] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0053] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0054] like Figure 1-Figure 11As shown, the utility model provides a pressure-compensated micro-sprinkler, including a nozzle 100, wherein a fluid cavity 101 for fluid to pass through is provided inside the nozzle 100, and a fluid inlet 1011 and a fluid outlet 1012 are formed at both ends of the fluid cavity 101; a frame 200, which is connected to the nozzle 100 near the fluid outlet 1012; a runner 300, which is provided with a flow channel 301; and one end of the runner 300 is movably connected to the frame 200, and the other end cooperates with the nozzle 100, So that the fluid cavity 101 and the flow channel 301 are communicated with each other; wherein, the nozzle 100 is connected with a pressure compensation component 400 at its fluid inlet 1011, and a cavity 401 communicating with the fluid cavity 101 is arranged inside the pressure compensation component 400; the pressure compensation component 400 is located at the end of the cavity 401 away from the fluid cavity 101 and is connected with a pressure compensation sheet 500 that can be deformed, and a pressure compensation cavity 600 is formed between the pressure compensation sheet 500 and the cavity 401. Specifically, after the water pressure increases, the pressure compensation sheet 500 will deform along the fluid direction of the cavity 401 toward the direction close to the nozzle 100, so that the cross-sectional area of ​​the pressure compensation chamber 600 becomes smaller, thereby reducing the fluid flow rate entering the nozzle 100; after the water pressure decreases, the deformation of the pressure compensation sheet 500 will be restored, so that the cross-sectional area of ​​the pressure compensation chamber 600 becomes relatively larger, thereby increasing the fluid flow rate entering the nozzle 100; thereby, the cross-sectional area of ​​the pressure compensation chamber 600 under different water pressures can be adjusted, so that the cross-sectional area of ​​the pressure compensation chamber 600 under different water pressures remains consistent, thereby always ensuring that the fluid flow rate in the nozzle 100 is consistent. By adopting the above scheme, a pressure compensating member 400 and a pressure compensating sheet 500 are connected to the fluid inlet 1011 of the nozzle 100; the pressure compensating sheet 500 will deform along the direction of the fluid in the cavity 401 under water pressure. Within a certain pressure difference range, no matter how the pressure changes, the consistency of the fluid flow rate is always guaranteed, thereby ensuring the consistency of water and nutrients obtained by crops.

[0055] In some embodiments, the pressure compensating member 400 includes a matching portion 402 matched with the nozzle 100, and a mounting portion 403 for mounting the pressure compensating sheet 500, which is arranged at one end of the matching portion 402 away from the nozzle 100; the cavity 401 is arranged in the matching portion 402; and the pressure compensating cavity 600 is formed between the pressure compensating sheet 500 and the matching portion 402. In some embodiments, a mounting cavity 4031 is arranged in the mounting portion 403; an open end 4032 communicating with the outside is arranged at one end of the mounting cavity 4031 away from the nozzle 100 to expose the pressure compensating sheet 500; and the pressure compensating sheet 500 can be deformed along the direction of the fluid in the cavity 401. With the above solution, the setting of the open end 4032 can enable the fluid to act on the pressure compensating sheet 500, so that the pressure compensating sheet 500 can be deformed along the direction of the fluid in the cavity 401, thereby adjusting the cross-sectional area of ​​the pressure compensating cavity 600. In some embodiments, the mounting portion 403 includes an annular wall 4033 connected to one end of the mating portion 402 away from the nozzle, and the end of the annular wall 4033 away from the mating portion 402 extends downward to form a plurality of clamping portions 4034 for clamping the pressure compensation plate 500, and the plurality of clamping portions 4034 are arranged at intervals along the circumferential direction; and, open ends 4035 are provided on opposite sides of the annular wall 4033, and the two open ends 4035 are both arranged between two spaced-apart clamping portions 4034. By adopting the above scheme, the setting of the clamping portion 4034 can firmly install the pressure compensation plate 500 on the mounting portion 403 to limit its movement in the radial direction and enable it to deform along the axial direction; the setting of the opening end 4035 allows the fluid to enter the pressure compensation cavity 600 in the mounting portion 403 through the gap 4038a between the two clamping portions 4034 and the opening end 4035 and then enter the cavity 401 of the matching portion 402; at the same time, the fluid will apply pressure to the pressure compensation plate 500, causing it to deform along the axial direction, thereby adjusting the cross-sectional area of ​​the pressure compensation cavity 600 and thereby adjusting the flow rate of the fluid. In some embodiments, a fluid channel 4036 is formed between the open end 4035 and the cavity 401 of the matching portion 402, and the fluid channel 4036 is sequentially formed with a first channel 4036a, a second channel 4036b, and a third channel 4036c from the outside to the inside; and the cross section of the first channel 4036a is larger than the cross section of the second channel 4036b, and the cross section of the second channel 4036b is larger than the cross section of the third channel 4036c. With the above solution, the cross sections of the first channel 4036a, the second channel 4036b, and the third channel 4036c gradually become smaller, which can buffer the incoming fluid so as to better adjust the flow rate of the fluid.In some embodiments, the annular wall 4033 is located above the pressure compensation sheet 500 and is recessed in a direction away from the pressure compensation sheet 500 to form a deformation groove 4033a for avoiding the pressure compensation sheet 500; the two opening ends 4035 can penetrate the deformation groove 4033a, so that the deformation groove 4033a, the fluid channel 4036 and the cavity 401 are connected. With the above solution, after the fluid enters from the opening end 4035, it will flow above the pressure compensation sheet 500 and form a pressure compensation cavity 600; in the process of deformation of the pressure compensation sheet 500, the cross-sectional area of ​​the pressure compensation cavity 600 can be continuously adjusted, thereby controlling the flow rate to remain consistent under different water pressures.

[0056] In some embodiments, a first clamping wall 4033b is provided at the connection between the inner side of the annular wall 4033 and the clamping portion 4034, a second clamping wall 4034a is formed at one end of the clamping portion 4034 away from the annular wall 4033, and a clamping space 4037 for clamping the pressure compensation sheet 500 is formed between the first clamping wall 4033b and the second clamping wall 4034a. With the above solution, the first clamping wall 4033b is a two semi-annular structure, and under the action of the first clamping wall 4033b and the plurality of second clamping walls 4034a, the periphery of the pressure compensation sheet 500 can be firmly clamped, preventing the middle part thereof from being separated from the pressure compensation member 400 during the deformation process, so as to ensure the deformation process of the pressure compensation sheet 500. In some embodiments, the annular wall 4033 is located at its outer edge and extends along the axial direction toward the direction close to the nozzle 100 to form an extension wall 4038, and a gap 4038a is formed between the extension wall 4038 and the matching portion 402; the nozzle 100 includes a plug-in portion 102 that can be adapted in the gap 4038a, and the matching portion 402 is adapted in the cavity 401 of the nozzle 100. With the above solution, through the matching of the matching portion 402 and the cavity 401 of the nozzle 100, and the matching of the plug-in portion 102 and the gap 4038a, the installation stability between the pressure compensation member 400 and the nozzle 100 is improved, thereby ensuring the flow stability of the fluid.

[0057] In some embodiments, an outer frame 700 is further included to cooperate with the frame 200, the nozzle 100 is arranged in the outer frame 700, and the outer frame 700 includes a connecting wall 701 connected to the outer wall of the nozzle 100 located between the fluid inlet 1011 and the fluid outlet 1012, so that an upper cavity 702 and a lower cavity 703 are formed in the outer frame 700, the upper half of the nozzle 100 is placed in the upper cavity 702, and the lower half of the nozzle 100 is placed in the lower cavity 703; and an opening 7031 is provided at the bottom end of the lower cavity 703, and the opening 7031 can connect the pressure compensation cavity 600 with the outside. In some embodiments, the pressure compensation member 400 is placed in the lower cavity 703 and connected to the lower half of the nozzle 100; the runner 300 can extend into the upper cavity 702 and be connected to the upper half of the nozzle 100. In some embodiments, the nozzle 100 is integrally formed on the outer frame 700; the frame 200 includes a mounting sleeve 201 mounted on the upper half of the outer frame 700, and mounting arms 202 extending from opposite ends of the mounting sleeve 201 in a direction away from the outer frame 700, and the two mounting arms 202 are annular and connected together; a protrusion 704 is provided on the outer wall of the outer frame 700, and the mounting sleeve 201 is provided with a recessed portion 2011 adapted to the protrusion 704 to achieve a fastened installation between the frame 200 and the outer frame 700; and the outer frame The top outer edge of 700 protrudes radially outward to form a limiting portion 705, and the limiting portion 705 abuts against the top of the mounting sleeve 201 to limit the axial separation of the mounting sleeve 201; a rotating portion 203 for mounting the rotating wheel 300 is provided at the connection between the two mounting arms 202, and a rotating hole 2031 is provided at one end of the rotating portion 203 close to the nozzle 100, and the rotating wheel 300 includes a rotating shaft 302 adapted to be inserted into the rotating hole 2031, so that the rotating wheel 300 can rotate relative to the frame 200; and a hook 204 is provided at the top of the frame 200.The wheel 300 includes a nozzle matching portion 303 connected to the lower end of the rotating shaft 302 and sleeved on the outlet of the flow channel 301 of the nozzle 100. The nozzle matching portion 303 is provided with a flow channel 301. The flow channel 301 can guide the water sprayed from the outlet of the flow channel 301 of the nozzle 100 to the outside so as to spray the crops. An annular portion 304 is provided between the rotating shaft 302 and the nozzle matching portion 303. The annular portion 304 can seal the outer frame 7. 00; when fluid enters the nozzle 100 and is ejected through the flow channel 301 of the runner 300, the fluid will push the runner 300 upward so that the water in the flow channel 301 will be spilled out from the gap between the annular portion 304 and the outer frame 700; and after stopping working, the runner 300 will automatically fall down so that the annular portion 304 and the top of the outer frame 700 are connected to each other, reaching a closed state to prevent insects and impurities from entering.

[0058] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0059] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A pressure-compensated micro-sprinkler, characterized in that: include A nozzle (100) is provided with a fluid cavity (101) for fluid to pass through, and a fluid inlet (1011) and a fluid outlet (1012) are respectively formed at two ends of the fluid cavity (101); a frame (200) connected to the nozzle (100) near the fluid outlet (1012); A rotating wheel (300) is provided with a flow channel (301); one end of the rotating wheel (300) is movably connected to the frame (200), and the other end cooperates with the nozzle (100) so that the fluid cavity (101) and the flow channel (301) are in communication; The nozzle (100) is connected to a pressure compensation component (400) at its fluid inlet (1011), and a cavity (401) communicating with the fluid cavity (101) is arranged inside the pressure compensation component (400); the pressure compensation component (400) is connected to a pressure compensation sheet (500) capable of being deformed at one end of the cavity (401) away from the fluid cavity (101), and a pressure compensation cavity (600) is formed between the pressure compensation sheet (500) and the cavity (401).

2. The pressure-compensated micro-sprinkler according to claim 1, characterized in that: The pressure compensation component (400) comprises a mating portion (402) mating with the nozzle (100), and a mounting portion (403) disposed at one end of the mating portion (402) away from the nozzle (100) for mounting the pressure compensation sheet (500); the cavity (401) is disposed in the mating portion (402); and the pressure compensation cavity (600) is formed between the pressure compensation sheet (500) and the mating portion (402).

3. The pressure-compensated micro-sprinkler according to claim 2, characterized in that: The mounting portion (403) is provided with a mounting cavity (4031); an end of the mounting cavity (4031) away from the nozzle (100) is provided with an open end (4032) communicated with the outside to expose the pressure compensation sheet (500); the pressure compensation sheet (500) is capable of deforming along the direction of the fluid in the cavity (401).

4. The pressure-compensating micro-sprinkler according to claim 3, characterized in that: The mounting portion (403) includes an annular wall (4033) connected to one end of the matching portion (402) away from the nozzle, and the end of the annular wall (4033) away from the matching portion (402) extends downward to form a plurality of clamping portions (4034) for clamping the pressure compensation plate (500), and the plurality of clamping portions (4034) are arranged at intervals along the circumferential direction; and, the annular wall (4033) is provided with open ends (4035) on two opposite sides, and the two open ends (4035) are arranged between two clamping portions (4034) arranged at intervals.

5. The pressure-compensating micro-sprinkler according to claim 4, characterized in that: A fluid channel (4036) is formed between the open end (4035) and the cavity (401) of the matching portion (402), and the fluid channel (4036) is formed with a first flow channel (4036a), a second flow channel (4036b) and a third flow channel (4036c) from the outside to the inside; and the cross-section of the first flow channel (4036a) is larger than the cross-section of the second flow channel (4036b), and the cross-section of the second flow channel (4036b) is larger than the cross-section of the third flow channel (4036c).

6. The pressure-compensating micro-sprinkler according to claim 5, characterized in that: The annular wall (4033) is located above the pressure compensation sheet (500) and is recessed in a direction away from the pressure compensation sheet (500) to form a deformation groove (4033a) for avoiding the pressure compensation sheet (500); the two opening ends (4035) can penetrate the deformation groove (4033a) so that the deformation groove (4033a), the fluid channel (4036) and the cavity (401) are connected.

7. The pressure-compensating micro-sprinkler according to claim 4, characterized in that: A first clamping wall (4033b) is provided at the connection between the inner side of the annular wall (4033) and the clamping portion (4034), and a second clamping wall (4034a) is formed at one end of the clamping portion (4034) away from the annular wall (4033), and a clamping space (4037) for clamping the pressure compensation sheet (500) is formed between the first clamping wall (4033b) and the second clamping wall (4034a).

8. The pressure-compensating micro-sprinkler according to claim 4, characterized in that: The annular wall (4033) is located at its outer edge and extends axially in a direction close to the nozzle (100) to form an extension wall (4038), and a gap (4038a) is formed between the extension wall (4038) and the matching portion (402); the nozzle (100) includes a plug-in portion (102) that can be adapted in the gap (4038a), and the matching portion (402) is adapted in the cavity (401) of the nozzle (100).

9. The pressure-compensating micro-sprinkler according to claim 1, characterized in that: The invention also comprises an outer frame (700) matched with the frame (200), the nozzle (100) being arranged in the outer frame (700), the outer frame (700) comprising a connecting wall (701) connected to the outer wall of the nozzle (100) located between the fluid inlet (1011) and the fluid outlet (1012), so that an upper cavity (702) and a lower cavity (703) separated from each other are formed in the outer frame (700), the upper half of the nozzle (100) is arranged in the upper cavity (702), and the lower half of the nozzle (100) is arranged in the lower cavity (703); and an opening (7031) is arranged at the bottom end of the lower cavity (703), and the opening (7031) can connect the pressure compensation cavity (600) with the outside.

10. The pressure-compensating micro-sprinkler according to claim 9, characterized in that: The pressure compensation component (400) is placed in the lower cavity (703) and is connected to the lower half of the nozzle (100); the rotating wheel (300) can extend into the upper cavity (702) and is connected to the upper half of the nozzle (100).

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