A multi-modal fluidic jet nozzle

Abstract

The utility model discloses a multimode jet flow nozzle, including connecting sleeve, valve core, rotating sleeve and nozzle cover, the outer wall of valve core is equipped with lower plugging portion, water inlet hole and upper plugging portion, rotating sleeve includes outer sleeve body and inner sleeve body, and inner sleeve body forms water route adjusting chamber with lower plugging portion, upper plugging portion and valve core, and water route adjusting chamber forms three modes with the rotation of rotating sleeve: first mode: lower plugging portion, upper plugging portion all with inner sleeve body inner wall sealed cooperation, and water route adjusting chamber is closed, second mode: upper plugging portion with inner sleeve body inner wall sealed, and lower plugging portion and inner sleeve body inner wall form first water gap, and water flow is exported through first water gap, third mode: lower plugging portion with inner sleeve body inner wall sealed, and upper plugging portion and inner sleeve body inner wall form second water gap, and water flow is flowed to straight -shooting mesh through second water gap, the utility model discloses a multimode jet flow nozzle can realize according to the use demand and select small diameter injection, large diameter straight -shooting and close function mode switch.

Description

Technical Field

[0001] This utility model relates to the field of garden spraying equipment, specifically to a multimodal jet nozzle. Background Technology

[0002] Current garden sprayers mostly employ a fixed radial spray pattern, which, while capable of basic irrigation, has significant drawbacks: its planar water flow is ill-suited to the three-dimensional irrigation needs of tree branches and shrub roots, resulting in insufficient deep wetting; the fixed scattering range easily leads to water waste and accidental spraying of non-target areas; and wind interference can exacerbate uneven irrigation, causing the risk of localized waterlogging. While existing adjustable spraying devices have attempted improvements, their complex structure, low adjustment precision, and susceptibility to clogging make them unsuitable for long-term stable use. There is an urgent need to develop a spraying structure that can dynamically adapt to plant morphology and regulate water flow trajectory to improve garden maintenance efficiency. Utility Model Content

[0003] In view of this, this utility model proposes a multi-modal jet nozzle, which controls the state of the water flow channel through axial displacement to achieve switching between three functional modes: small-diameter jetting, large-diameter direct jetting, and shut-off.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A multimodal jet nozzle includes: a connecting sleeve with open ends at both its upper and lower ends; a valve core body with its upper end coaxially fixedly fitted inside the connecting sleeve, the upper end of the valve core body being a water inlet and the lower end being a closed end, the outer wall of the valve core body having, from bottom to top, a lower sealing portion, a water inlet hole, an upper sealing portion, and an external threaded guide portion; a rotating sleeve including an outer sleeve and an inner sleeve, the inner sleeve being coaxially fixed inside the lower end of the outer sleeve, the upper end of the outer sleeve having an internal spiral guide portion threadedly engaged with the external threaded guide portion, and the upper end of the outer sleeve being rotatably fitted inside the lower end of the connecting sleeve, the inner sleeve being fitted inside the lower end of the valve core body, and forming a water channel regulating cavity between the inner sleeve and the lower sealing portion, the water inlet hole, the upper sealing portion, and the outer wall of the valve core body; and a nozzle cover, the nozzle cover being fixedly fitted inside the connecting sleeve. At the lower end of the outer sleeve, a direct-spray mesh is fixedly installed on the inner side of the lower end of the nozzle cover. The direct-spray mesh has an assembly hole at its center, and the inner wall of the assembly hole is sealed to the outer wall of the lower end of the inner sleeve. The water channel regulating cavity operates in three modes as the rotating sleeve rotates: First mode: Both the lower and upper sealing parts are sealed to the inner wall of the inner sleeve, and both ends of the water channel regulating cavity are closed. Second mode: The upper sealing part maintains a sealed fit with the inner wall of the inner sleeve, and a first water outlet slit is formed between the lower sealing part and the inner wall of the inner sleeve. Water flows through the inlet hole into the water channel regulating cavity and then exits through the first water outlet slit. Third mode: The lower sealing part maintains a sealed fit with the inner wall of the inner sleeve, and a second water outlet slit is formed between the upper sealing part and the inner wall of the inner sleeve. Water flows through the inlet hole into the water channel regulating cavity and then flows through the second water outlet slit to the direct-spray mesh.

[0006] To better achieve the above technical solution, the number of water inlet holes is at least three, and they are evenly spaced along the circumference of the valve core.

[0007] Furthermore, the upper end of the inner sleeve is fixedly connected to the middle inner wall of the outer sleeve through a first connecting plate, and an annular water flow channel is formed between the lower inner wall of the inner sleeve and the lower inner wall of the outer sleeve. A first water passage hole is provided on the upper side wall of the inner sleeve, and the first water passage hole penetrates the inner and outer walls of the inner sleeve.

[0008] Furthermore, there are multiple first water passage holes, which are evenly spaced along the circumference of the inner sleeve.

[0009] Furthermore, the lower end of the valve core is provided with a flow guiding extension, and the inner wall of the lower end of the inner sleeve is provided with a flow guiding channel. By rotating the sleeve axially, the flow guiding extension and the flow guiding channel can form two water outlet forms.

[0010] Furthermore, the flow guiding extension is an inverted T-shaped columnar structure, with the horizontal and vertical sections of the inverted T-shaped columnar structure transitioning through a conical section. The flow guiding channel includes a conical hole in the lower section and a circular hole in the upper section. When the conical hole of the flow guiding channel is radially aligned with the conical section of the inverted T-shaped columnar structure, the water flow output through the first water outlet is a conical diffused water curtain. When the circular hole of the flow guiding channel is radially aligned with the horizontal section of the inverted T-shaped columnar structure, the water flow output through the first water outlet is a straight water outlet.

[0011] Furthermore, the valve core and the connecting sleeve are detachably fixed by a threaded connection structure.

[0012] Furthermore, the inner wall of the outer sleeve is provided with a downward movement stop portion, and the outer wall of the valve core is provided with a lower limit ring and an upper limit ring located above the external thread guide portion from bottom to top. The lower limit ring cooperates with the downward movement stop portion to limit the downward movement limit position of the rotating sleeve, and the upper limit ring cooperates with the upper end face of the outer sleeve to limit the upward movement limit position of the rotating sleeve.

[0013] Furthermore, the lower outer wall of the inner sleeve is provided with a radially extending second connecting plate, which is fixedly clamped between the direct spray mesh and the lower end face of the inner sleeve. The inner sleeve is provided with a plurality of second water passages penetrating its thickness direction, which are used to connect the upper cavity and the lower cavity of the inner sleeve.

[0014] Furthermore, the nozzle cap is connected to the lower end of the outer casing via a threaded seal.

[0015] The beneficial effects of this utility model are:

[0016] This utility model's multi-modal jet nozzle utilizes the threaded engagement of the outer and inner spiral parts. By rotating the rotating sleeve, axial displacement of the sleeve is achieved, allowing the water channel regulating cavity to present three working states. When both ends of the water channel regulating cavity are completely sealed by the lower and upper sealing parts, the nozzle is in the closed state. When the upper sealing part maintains a sealed fit with the inner wall of the inner sleeve, a first water outlet slit is formed between the lower sealing part and the inner wall of the inner sleeve, and the water flows through the first water outlet slit to form a small-diameter jet. When the lower sealing part maintains a sealed fit with the inner wall of the inner sleeve, a second water outlet slit is formed between the upper sealing part and the inner wall of the inner sleeve, and the water flows through the second guide slit to the direct spray mesh, forming a large-diameter direct water jet. This multi-modal jet nozzle achieves switching between three spray modes through a single nozzle, meeting the diverse needs for water jet pattern, coverage range, and impact force under different working conditions, effectively improving the functionality and applicable scenarios of the jet nozzle. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a multimodal jet nozzle according to Embodiment 1 of this utility model;

[0018] Figure 2 yes Figure 1 Exploded view;

[0019] Figure 3 yes Figure 2 A sectional view of the connecting sleeve;

[0020] Figure 4 yes Figure 2 A sectional view of the rotating sleeve;

[0021] Figure 5 This is a schematic diagram of the first mode of the multimodal jet nozzle in Embodiment 1 of this utility model;

[0022] Figure 6 This is a schematic diagram of the first form of the second mode of the multimodal jet nozzle in Embodiment 1 of this utility model;

[0023] Figure 7 This is a schematic diagram of the second form of the second mode of the multimodal jet nozzle in Embodiment 1 of this utility model;

[0024] Figure 8 This is a schematic diagram of the third mode of the multimodal jet nozzle in Embodiment 1 of this utility model;

[0025] Figure 9 This is a cross-sectional view of a multimodal jet nozzle according to Embodiment 2 of this utility model.

[0026] Figure 10 yes Figure 9 A sectional view of the inner sleeve.

[0027] Figure label:

[0028] Connecting sleeve 10, first sealing ring 11, pipe wall threaded interface 12, valve core body 20, first lower sealing part 211, second lower sealing part 212, water inlet hole 22, upper sealing part 23, external thread guide part 24, flow guiding extension part 25, lower limit ring 26, upper limit ring 27, pipe port external thread 28, outer sleeve 30, inner spiral guide part 31, lower movement stop part 32, ring part 321, limit part 322, inner sleeve 40, first connecting plate 41, first water passage hole 42, flow guiding channel 43, second connecting plate 44, second water passage hole 45, nozzle cover 50, direct injection mesh 51. Detailed Implementation

[0029] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are indicated by the same reference numerals.

[0030] Example 1

[0031] Please see Figures 1 to 8This utility model discloses a multimodal jet nozzle, including a connecting sleeve 10, a valve core 20, a rotating sleeve, and a nozzle cover 50.

[0032] like Figures 1-3 As shown, the upper and lower ends of the connecting sleeve 10 are both open. The upper end of the connecting sleeve 10 is used to connect the water outlet pipe. The outer wall of the upper end of the connecting sleeve 10 is fitted with a first sealing ring 11. The outer wall of the upper end of the connecting sleeve 10 and the inner wall of the water outlet pipe can be sealed together through the first sealing ring 11.

[0033] like Figures 2-8 As shown, the upper end of the valve core 20 is coaxially fixed inside the connecting sleeve 10. Specifically, the outer wall of the upper end of the valve core 20 is provided with an external pipe thread 28, and the inner wall of the middle part of the connecting sleeve 10 is provided with a pipe wall thread interface 12. The external pipe thread 28 and the pipe wall thread interface 12 are threadedly connected to fix the upper end of the valve core 20 inside the connecting sleeve 10. The upper end of the valve core 20 is the water inlet end, and the lower end of the valve core 20 is the closed end. The outer wall of the valve core 20 is provided with a lower sealing part, a water inlet hole 22, and an upper sealing part from bottom to top. 23 and external thread guide 24, the rotating sleeve includes an outer sleeve 30 and an inner sleeve 40. The inner sleeve 40 is coaxially fixed inside the lower end of the outer sleeve 30. The upper end of the outer sleeve 30 is provided with an inner spiral guide 31. The inner spiral guide 31 is threadedly engaged with the external thread guide 24. The upper end of the outer sleeve 30 is rotatably fitted inside the lower end of the connecting sleeve 10. The inner sleeve 40 is fitted inside the lower end of the valve core 20 and forms a water circuit regulating cavity with the lower sealing part, the water inlet hole 22, the upper sealing part 23 and the outer wall of the valve core 20.

[0034] like Figure 1 As shown, the nozzle cover 50 is fixed to the lower end of the outer sleeve 30, and a direct spray mesh 51 is fixed to the inner side of the lower end of the nozzle cover 50. The center of the direct spray mesh 51 is provided with an assembly hole, and the inner wall of the assembly hole is sealed to the outer wall of the lower end of the inner sleeve 40.

[0035] The water channel regulating cavity operates in three modes as the rotating sleeve rotates:

[0036] like Figure 5 As shown, in the first mode: both the lower sealing part and the upper sealing part 23 are sealed to the inner wall of the inner sleeve 40, and the two ends of the water channel regulating cavity are closed;

[0037] like Figure 6 and Figure 7 As shown, in the second mode: the upper sealing part 23 maintains a sealed fit with the inner wall of the inner sleeve 40, and the lower sealing part 21 forms a first water outlet gap with the inner wall of the inner sleeve 40. Water flows through the water inlet 22 into the water circuit regulating chamber and then out through the first water outlet gap.

[0038] like Figure 8As shown, in the third mode: the lower sealing part 21 maintains a sealed fit with the inner wall of the inner sleeve 40, and the upper sealing part 23 forms a second water outlet gap with the inner wall of the inner sleeve 40. The water flows through the water inlet hole 22 into the water circuit regulating chamber, and then flows through the second water outlet gap to the direct spray mesh 51.

[0039] The multi-modal jet nozzle of this utility model utilizes the threaded engagement of the outer spiral part 24 and the inner spiral part 31. By rotating the rotating sleeve, the axial displacement of the rotating sleeve is achieved, allowing the water channel regulating cavity to present three working states. When both ends of the water channel regulating cavity are completely closed by the lower sealing part and the upper sealing part 23, the nozzle is in the closed state. When the upper sealing part 23 maintains a sealed engagement with the inner wall of the inner sleeve 40, a first water outlet gap is formed between the lower sealing part 21 and the inner wall of the inner sleeve 40, and the water flows through the first water outlet gap to form a small-diameter jet flow. When the lower sealing part 21 maintains a sealed engagement with the inner wall of the inner sleeve 40, a second water outlet gap is formed between the upper sealing part 23 and the inner wall of the inner sleeve 40, and the water flows through the second guide gap to the direct spray mesh 51 to form a large-diameter direct water flow. This multi-modal jet nozzle achieves the switching of three spray modes through a single nozzle, meeting the diverse needs for water jet pattern, coverage range, and impact force under different working conditions, effectively improving the functionality and applicable scenarios of the jet nozzle.

[0040] like Figure 2 As shown, the number of water inlet holes 22 is at least three, and they are evenly distributed around the valve core 20. In this embodiment, there are four water inlet holes 22, with adjacent water inlet holes 22 spaced at 90° intervals. The evenly distributed water inlet holes 22 around the circumference ensures uniform water flow distribution.

[0041] like Figure 4 As shown, the upper end of the inner sleeve 40 is fixedly connected to the middle inner wall of the outer sleeve 30 through the first connecting plate 41. An annular water flow channel is formed between the inner sleeve 40 and the lower inner wall of the outer sleeve 30. A first water passage hole 42 is opened on the upper side wall of the inner sleeve 40. The first water passage hole 42 penetrates the inner and outer walls of the inner sleeve 40, so that the third mode water flow is introduced into the annular water flow channel through the first water passage hole 42 and then output through the direct spray mesh 51.

[0042] Specifically, the inner sleeve 40 and the outer sleeve 30 adopt an integrated structure, and there are four first water passage holes 42, which are evenly distributed along the inner sleeve 40 and along the circumference of the inner sleeve 40.

[0043] In this embodiment, the lower end of the valve core 20 is provided with a flow-guiding extension 25, and the inner wall of the lower end of the inner sleeve 40 is provided with a flow-guiding channel 43. By rotating the sleeve axially, the flow-guiding extension 25 and the flow-guiding channel 43 can form two water outlet forms. Specifically, the flow-guiding extension 25 is an inverted T-shaped columnar structure, and the horizontal and vertical sections of the inverted T-shaped columnar structure are transitioned by a conical section. The flow-guiding channel 43 includes a conical hole in the lower section and a circular hole in the upper section, such as... Figure 6As shown, when the guide channel 43 moves until its conical orifice is radially aligned with the conical section of the inverted T-shaped columnar structure, the water flow forms a conical diffusion water curtain; as Figure 7 As shown, when the circular hole of the guide channel 43 is radially aligned with the lower horizontal section of the inverted T-shaped columnar structure, the water flow forms a straight water outlet pattern.

[0044] In the embodiment, it should be noted that the lower sealing part includes two sealing rings spaced apart vertically. Two lower sealing parts are provided to facilitate cooperation with the flow guiding extension and the flow guiding channel to form a shape as described above. Figure 6 As shown and as Figure 7 The two water jet methods are shown.

[0045] In the embodiment, it should be noted that the lower sealing part includes two lower sealing parts 211 and 212 arranged at an upper and lower interval. In the first mode, the first lower sealing part 211 is sealed with the inner sleeve 40, and there is a gap between the second lower sealing part 212 and the inner sleeve 40. In the second mode, there is a gap between both the first lower sealing part 211 and the second lower sealing part 212 and the inner sleeve 40. In the third mode, there is a gap between the first lower sealing part 211 and the inner sleeve 40, and the second lower sealing part 212 remains sealed with the inner sleeve 40. Dividing the lower sealing part into the first lower sealing part 211 and the second lower sealing part 212 facilitates the extension of the switching path between the first mode and the third mode, thereby providing more assembly length for switching between the two water outlet modes in the second mode.

[0046] like Figures 4-8 As shown, the inner wall of the outer sleeve 30 is fitted with a downward movement stop portion 32. Specifically, the upper outer wall of the outer sleeve 30 is provided with an annular groove in the circumferential direction. The inner annular wall of the annular groove is provided with three radially extending mounting holes at intervals in the circumferential direction. The downward movement stop portion 32 includes an annular part 321 with a notch and a limiting portion 322 fixed to the inner wall of the annular part 321 and extending into the outer sleeve 30 from each mounting hole. The downward movement stop portion 32 is made of engineering plastic and is embedded in the outer sleeve 30 by utilizing the unique elasticity of engineering plastic. The valve core 20 has a lower limiting ring 26 and an upper limiting ring 27 arranged sequentially from bottom to top on the outer wall between the external thread 28 of the pipe port and the external thread guide portion 24. The lower limiting ring 26 cooperates with the downward movement stop portion 32 to limit the downward movement limit position of the rotating sleeve. The upper limiting ring 27 cooperates with the upper end face of the outer sleeve 30 to limit the upward movement limit position of the rotating sleeve, so as to ensure that the rotating sleeve moves within a limited distance, thereby realizing the switching of water outlet mode.

[0047] The jet flow adjustment method of the multimodal jet nozzle in this embodiment of the utility model is as follows:

[0048] like Figure 5As shown, the upper end face of the outer sleeve 30 abuts against the lower end face of the upper limit ring 27. The first lower sealing part 211 and the upper sealing part 23 are simultaneously clamped between the outer wall of the valve core 20 and the inner wall of the inner sleeve 40. The upper and lower ends of the water circuit regulating cavity are closed by the first lower sealing part 211 and the upper sealing part 23, and the drainage channel of the water circuit regulating cavity is blocked. At this time, the multi-mode jet nozzle is in a closed state.

[0049] like Figure 6 As shown, when the rotating sleeve is rotated downwards, the upper sealing part 23 remains closed to the inner wall of the inner sleeve 40, and the first lower sealing part 211 and the second lower sealing part 212 both form a first guiding gap with the inner sleeve 40. When the conical hole of the guiding channel 43 is radially aligned with the conical section of the inverted T-shaped column structure, the water output from the first guiding gap is guided by the guiding extension part 25 and the guiding channel 43 to form a conical diffusion water curtain.

[0050] like Figure 7 As shown, continue to rotate the rotating sleeve downwards. When the upper sealing part 23 remains closed to the inner wall of the inner sleeve 40, the first lower sealing part 211 and the second lower sealing part 212 both form a first guiding gap with the inner sleeve 40, and the circular hole of the guiding channel 43 is radially aligned with the lower horizontal section of the inverted T-shaped columnar structure, the water output from the first guiding gap is guided by the guiding extension part 25 and the guiding channel 43 to form a columnar bundled water flow.

[0051] like Figure 8 As shown, continue to rotate the rotating sleeve downwards until the inner end of the limiting part 322 abuts against the lower limiting ring 26. At this time, the second lower sealing part 212 is clamped between the outer wall of the valve core 20 and the inner wall of the inner sleeve 40. The upper sealing part 23 and the inner wall of the inner sleeve 40 form a second water outlet gap. The water in the water circuit regulating chamber enters the outside of the water circuit regulating chamber through the second water outlet gap, and then is guided through the first water passage hole 42 to the annular water flow channel formed by the outer wall of the inner sleeve 40 and the inner wall of the outer sleeve 30. After that, it is sprayed out through the direct spray mesh 51 to form a large-diameter direct water flow.

[0052] Example 2

[0053] like Figure 9 and Figure 10 As shown, this embodiment is similar to embodiment 1, except that the structure of the inner sleeve 40 is different. Specifically, the lower outer wall of the inner sleeve 40 is provided with a radially extending second connecting plate 44. The second connecting plate 44 is fixedly clamped between the outer edge of the direct spray mesh 51 and the lower end face of the inner sleeve 40. The inner sleeve 40 is provided with a plurality of second water passage holes 45 that penetrate its thickness direction. The second water passage holes 45 are used to connect the upper cavity and the lower cavity of the inner sleeve 40.

[0054] The multi-modal jet nozzle of this embodiment has the same first and second modes as the first and second modes of embodiment 1. The third mode is different. Specifically, the water in the water channel regulating cavity enters the annular cavity formed by the upper outer wall of the inner sleeve 40 and the lower inner wall of the outer sleeve 30 through the second water outlet slit. It is guided to the direct spray mesh 51 through the second water passage 45 and sprayed out through the direct spray mesh 51 to form a large-diameter direct water flow.

[0055] The multimodal jet nozzle of this embodiment adopts an independent outer sleeve 30 and inner sleeve 40, which can reduce the processing cost of the outer sleeve 30 and inner sleeve 40.

[0056] The technical solution of this utility model has been described in detail above with reference to specific embodiments. The specific embodiments described are used to help understand the concept of this utility model. Derivations and modifications made by those skilled in the art based on the specific embodiments of this utility model also fall within the protection scope of this utility model.

Claims

1. A multimodal jet nozzle, characterized in that, include: The connecting sleeve (10) has open ends at both its upper and lower ends; The valve core (20) is coaxially fixed inside the connecting sleeve (10) at its upper end. The upper end of the valve core (20) is the water inlet end, and the lower end of the valve core (20) is the closed end. The outer wall of the valve core (20) is provided with a lower sealing part, a water inlet hole (22), an upper sealing part (23), and an external thread guide part (24) from bottom to top. The rotating sleeve includes an outer sleeve (30) and an inner sleeve (40). The inner sleeve (40) is coaxially fixed inside the lower end of the outer sleeve (30). The upper end of the outer sleeve (30) is provided with an inner spiral guide (31). The inner spiral guide (31) is threadedly engaged with the outer thread guide (24). The upper end of the outer sleeve (30) is rotatably fitted inside the lower end of the connecting sleeve (10). The inner sleeve (40) is fitted inside the lower end of the valve core (20) and forms a water circuit regulating cavity with the lower sealing part (21), the water inlet hole (22), the upper sealing part (23), and the outer wall of the valve core (20). And a nozzle cover (50), the nozzle cover (50) is fixed to the lower end of the outer sleeve (30), a direct spray mesh (51) is fixed to the inner side of the lower end of the nozzle cover (50), the center of the direct spray mesh (51) is provided with an assembly hole, and the inner wall of the assembly hole is sealed to the lower outer wall of the inner sleeve (40). The water channel regulating cavity operates in three modes as the rotating sleeve rotates: First mode: The lower sealing part (21) and the upper sealing part (23) are both sealed to the inner wall of the inner sleeve (40), and the two ends of the water channel regulating cavity are closed; Second mode: The upper sealing part (23) and the inner wall of the inner sleeve (40) are sealed together, and the lower sealing part (21) and the inner wall of the inner sleeve (40) form a first water outlet gap. Water flows through the water inlet (22) into the water circuit regulating chamber and then out through the first water outlet gap. Third mode: The lower sealing part (21) and the inner wall of the inner sleeve (40) are sealed together, and the upper sealing part (23) and the inner wall of the inner sleeve (40) form a second water outlet gap. The water flows through the water inlet hole (22) into the water circuit regulating chamber, and then flows through the second water outlet gap to the direct spray mesh (51).

2. The multimodal jet nozzle according to claim 1, characterized in that, The number of water inlet holes (22) is at least three, and they are evenly spaced along the circumference of the valve core (20).

3. A multi-mode jet nozzle according to claim 1, characterized in that, The upper end of the inner sleeve (40) is fixedly connected to the middle inner wall of the outer sleeve (30) through the first connecting plate (41). An annular water flow channel is formed between the outer wall of the inner sleeve (40) and the lower inner wall of the outer sleeve (30). A first water passage hole (42) is opened on the upper side wall of the inner sleeve (40), and the first water passage hole (42) penetrates the inner and outer walls of the inner sleeve (40).

4. A multimodal jet nozzle according to claim 3, characterized in that, There are multiple first water passage holes (42), which are evenly spaced along the circumference of the inner sleeve (40).

5. A multi-mode jet nozzle according to claim 1, characterized in that, The lower end of the valve core (20) is provided with a flow guide extension (25), and the inner wall of the lower end of the inner sleeve (40) is provided with a flow guide channel (43). By rotating the sleeve axially, the flow guide extension (25) and the flow guide channel (43) form two water outlet forms.

6. A multimodal jet nozzle according to claim 5, characterized in that, The flow guide extension (25) is an inverted T-shaped columnar structure. The horizontal and vertical sections of the inverted T-shaped columnar structure are transitioned by a conical section. The flow guide channel (43) includes a conical hole in the lower section and a circular hole in the upper section. When the conical hole of the flow guide channel (43) is radially aligned with the conical section of the inverted T-shaped columnar structure, the water flow output through the first water outlet is a conical diffusion water curtain. When the circular hole of the flow guide channel (43) is radially aligned with the horizontal section of the inverted T-shaped columnar structure, the water flow output through the first water outlet is a straight water outlet.

7. A multi-mode jet nozzle according to claim 1, characterized in that, The valve core (20) and the connecting sleeve (10) are detachably fixed by a threaded connection structure.

8. A multi-mode jet nozzle according to claim 2, characterized in that, The inner wall of the outer sleeve (30) is provided with a downward stop part (32). The outer wall of the valve core (20) is provided with a lower limit ring (26) and an upper limit ring (27) located above the external thread guide part (24) from bottom to top. The lower limit ring (26) cooperates with the downward stop part (32) to limit the downward movement limit position of the rotating sleeve. The upper limit ring (27) cooperates with the upper end face of the outer sleeve (30) to limit the upward movement limit position of the rotating sleeve.

9. A multi-mode jet nozzle according to claim 1, characterized in that, The lower outer wall of the inner sleeve (40) is provided with a radially extending second connecting plate (44). The second connecting plate (44) is fixedly clamped between the edge of the direct spray mesh (51) and the lower end face of the inner sleeve (40). The inner sleeve (40) is provided with a plurality of second water passage holes (45) that penetrate its thickness direction. The second water passage holes (45) are used to connect the upper cavity and the lower cavity of the inner sleeve (40).

10. A multi-mode jet nozzle according to any one of claims 1-9, characterized in that, The nozzle cap (50) and the lower end of the outer casing (30) are connected by a threaded seal.

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