Multi-head self-driven rotary spray head

Abstract

This utility model relates to the field of spraying equipment technology, specifically to a multi-head self-driven rotary nozzle, including an outer base, an inner base, and a rotating shaft. The outer base has a receiving cavity, and its top has a water source connector communicating with the receiving cavity. The inner base is installed in the receiving cavity and forms a swirling chamber inside, with an inclined hole at its top. The rotating shaft is rotatably mounted in the swirling chamber of the inner base. The upper end of the hollow rotating shaft communicates with the swirling chamber and has a guide section, which has turbine blades with counterweight steel balls. The lower end of the rotating shaft has a flow divider seat, and multiple flow divider rods are arranged around the flow divider seat. Each flow divider rod has a nozzle, and the nozzles are connected to the lower end of the rotating shaft through the flow divider rods and channels within the flow divider seat. Utilizing high-speed flowing fluid, pressurized water enters the swirling chamber through the inclined hole, driving the turbine blades to rotate, which in turn drives the rotating shaft to rotate, achieving energy conversion. The structure is simple and reasonable, with good practicality and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, specifically to a multi-head self-driven rotating nozzle, which is suitable for agricultural irrigation, garden spraying, industrial cleaning and other fields. Background Technology

[0002] Sprinklers are needed in various fields such as agricultural irrigation, garden spraying, industrial cleaning, and fire fighting.

[0003] In the field of fire protection, sprinkler heads are key components of automatic fire extinguishing equipment. Installed at the protected site, they spray water to extinguish fires and determine the working mode and extinguishing effect of the fire protection system. There are two main types of sprinkler heads widely used in automatic sprinkler systems: closed-type sprinkler heads and open-type water mist or fine water mist sprinkler heads.

[0004] In the field of sprinkler irrigation, irrigation is a technical measure to supplement the water needed by crops. To ensure normal crop growth and achieve high and stable yields, crops must be supplied with sufficient water. Under natural conditions, insufficient or uneven rainfall often fails to meet the water requirements of crops. Therefore, artificial irrigation is necessary to compensate for the lack of natural rainfall. Irrigation involves sending water through pipes to sprinklers. Most existing irrigation sprinklers are rotary sprinklers; the high-speed rotation of the sprinklers during irrigation increases the irrigated area and improves irrigation efficiency.

[0005] Traditional sprinkler irrigation is uneven, and fixed sprinklers cannot cover large areas. Traditional sprinkler systems suffer from the "central drought effect," with irrigation volume decreasing by up to 40% in the edge areas of rotating sprinklers. Furthermore, most sprinkler rotation mechanisms rely on action and reaction forces, requiring the nozzles to be tilted at a certain angle to rotate, resulting in blind spots.

[0006] Chinese patent document CN206778738U discloses a pressure-compensating sprinkler head, including a sprinkler head and a pressure compensation device threadedly connected to the sprinkler head. The pressure compensation device includes a valve body, a central support, and a guide tube. The gap between the conical surface of the guide tube and the inverted conical structure of the central support forms an adjustable flow channel. Through the coordination of the adjustable flow channel, guide tube, and spring, the water flow rate at the outlet end is stabilized, and the spring is prevented from contacting the water flow, thus preventing rusting and aging and extending the service life of the pressure-compensating sprinkler head. The pressure compensation device also includes steel balls and a boss. The oblique inlet hole generates a rotating water flow, causing the steel balls to strike the boss. The boss drives the guide tube and sprinkler head to rotate, ensuring that the water flow from the sprinkler head is evenly sprayed around the perimeter. It can simultaneously achieve pressure compensation and rotation functions, has a simple structure, greatly improves irrigation efficiency, and is suitable for agricultural and forestry irrigation.

[0007] The existing technology uses steel balls to rotate the guide tube, but the continuity of the rotation needs to be improved. Utility Model Content

[0008] In view of the above-mentioned technical problems, the present invention provides a multi-head self-driven rotary nozzle.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A multi-head self-driven rotary nozzle is provided, including an outer base, an inner base and a rotating shaft. The outer base is provided with a receiving cavity, and the top of the outer base is provided with a water source connector that communicates with the receiving cavity.

[0011] The inner base is installed in the receiving cavity and a swirling cavity is formed inside. A water inlet space is left between the upper part of the receiving cavity and the upper end face of the inner base. The top of the inner base is provided with an inclined hole that connects the swirling cavity and the water inlet space. A clearance hole is formed through the bottom of the swirling cavity.

[0012] The rotating shaft is rotatably mounted in the swirling cavity of the inner base and extends out of the inner base through the relief hole. The upper end of the hollow rotating shaft is connected to the swirling cavity and is provided with a guide section. The guide section is provided with turbine blades, and counterweight steel balls are placed at the turbine blades.

[0013] The inner base has a support step on the side wall of the clearance hole. The support step has an upper flexible sealing ring, a first ceramic pad, a second ceramic pad and a lower flexible sealing ring stacked from top to bottom. The flow guide part abuts against the upper flexible sealing ring downwards. The first ceramic pad and the second ceramic pad can rotate relative to each other.

[0014] The lower end of the rotating shaft is provided with a flow divider seat, and multiple flow divider rods are arranged around the flow divider seat. Each flow divider rod is provided with a nozzle. The nozzles are connected to the lower end of the rotating shaft through the flow divider rods and the channels in the flow divider seat. The lower end of the flow divider seat is also provided with a nozzle connected to the lower end of the rotating shaft.

[0015] Specifically, the outer base includes an upper base body and a lower base body that are connected and fixed to each other, and a first sealing ring is provided at the connection point.

[0016] Specifically, the inner base includes an upper cover and a lower cover that are connected and fixed to each other, and a second sealing ring is provided at the connection point; the lower base is provided with an inner step, and a third sealing ring is provided on the inner step, and the lower cover is supported on the third sealing ring.

[0017] Specifically, the upper and lower flexible sealing rings are nitrile sealing rings.

[0018] Specifically, the two inclined holes are arranged symmetrically with respect to the axis of rotation.

[0019] Specifically, there are two or more counterweight steel balls, with different counterweight steel balls loosely placed between two adjacent turbine blades.

[0020] Specifically, the lower end of the shaft is threaded with a connecting seat, and the distributor seat and the connecting seat are threaded together.

[0021] The beneficial effects of this utility model are:

[0022] This invention relates to a multi-head self-driven rotary nozzle. Utilizing high-speed fluid flow, pressurized water enters through a water source connector, passes through the inlet space and an inclined hole, and then enters the vortex chamber, driving the turbine blades to rotate, which in turn drives the shaft to rotate, thus achieving energy conversion. Structurally, the nozzle's rotation is achieved through three key factors: first, the inclined hole significantly enhances the kinetic energy of the water flow; second, the high-speed fluid flow propels the turbine blades to rotate, thereby driving the shaft; and third, the counterweight steel balls maintain a certain inertia under the impact of the water flow, reducing the likelihood of pauses. This invention features a simple and reasonable structure; as long as there is a pressurized water source, it can rotate and spray, evenly covering the sprayed surface, demonstrating strong practicality and significant economic and social benefits. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a multi-head self-driven rotary nozzle in one of the embodiments.

[0025] Figure 2 This is a cross-sectional view of a multi-head self-driven rotary nozzle in one embodiment.

[0026] Figure 3 This is an exploded view of a multi-head self-driven rotary nozzle in one of the embodiments.

[0027] Figure 4 This is a three-dimensional sectional view of a multi-head self-driven rotating nozzle in the embodiment, with some structures hidden.

[0028] Figure 5 This is a schematic diagram of the use of a multi-head self-driven rotating nozzle in the embodiment. The dashed line indicates the water spray coverage area.

[0029] Figure label:

[0030] Outer base 1, receiving cavity 11, water source connector 12, water inlet space 13, upper body 14, lower body 15, inner step 16;

[0031] Inner base 2, swirling cavity 21, inclined hole 22, clearance hole 23, support step 24, upper cover 25, lower cover 26;

[0032] Shaft 3, guide section 31, turbine blades 32;

[0033] Upper flexible sealing ring 41, first ceramic gasket 42, second ceramic gasket 43, lower flexible sealing ring 44, first sealing ring 45, second sealing ring 46, third sealing ring 47;

[0034] 5. Diverter seat; 6. Diverter rod; 7. Connector seat;

[0035] 8 counterweight steel balls. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] This embodiment features a multi-head self-driven rotary nozzle, such as... Figures 1 to 5 As shown, it includes an outer base 1, an inner base 2 and a rotating shaft 3. The outer base 1 is provided with a receiving cavity 11, and the top of the outer base 1 is provided with a water source connector 12 that communicates with the receiving cavity 11.

[0038] The inner base 2 is installed in the receiving cavity 11 and has a swirling cavity 21 inside. A water inlet space 13 is left between the upper part of the receiving cavity 11 and the upper end face of the inner base 2. The top of the inner base 2 is provided with an inclined hole 22 connecting the swirling cavity 21 and the water inlet space 13. The two inclined holes 22 are symmetrically arranged relative to the axis of the rotating shaft 3. Of course, other numbers can be used in practice and are not limited. A clearance hole 23 is formed through the bottom of the swirling cavity 21. The rotating shaft 3 is rotatably installed in the swirling cavity 21 of the inner base 2 and extends out of the inner base 2 from the clearance hole 23. The upper end of the hollow rotating shaft 3 is connected to the swirling cavity 21 and is provided with a guide section 31. The guide section 31 is provided with turbine blades 32. A counterweight steel ball 8 is placed at the turbine blade 32, with sufficient space for the counterweight steel ball 8 to move. There are two or more counterweight steel balls 8, and different counterweight steel balls 8 are loosely placed between different adjacent turbine blades 32.

[0039] The inner base 2 has a support step 24 on the side wall of the clearance hole 23. The support step 24 is provided with an upper flexible sealing ring 41, a first ceramic pad 42, a second ceramic pad 43 and a lower flexible sealing ring 44 stacked from top to bottom. The guide part 31 presses against the upper flexible sealing ring 41 downwards, and the first ceramic pad 42 and the second ceramic pad 43 can rotate relative to each other.

[0040] The lower end of the rotating shaft 3 is provided with a flow divider seat 5. Four flow divider rods 6 are arranged around the periphery of the flow divider seat 5. The four flow divider rods 6 are arranged at intervals according to the Fibonacci sequence around the periphery. Each flow divider rod 6 is provided with a nozzle. The nozzle is connected to the lower end of the rotating shaft 3 through the flow divider rod 6 and the channel in the flow divider seat 5. The lower end of the flow divider seat 5 is also provided with a nozzle connected to the lower end of the rotating shaft 3.

[0041] In use, the water source connector 12 is connected to a water pipe, and pressurized water enters. After passing through the water inlet space 13 and the inclined hole 22, it enters the vortex chamber 21. The high-speed flowing fluid drives the turbine blades 32 to rotate, which in turn drives the rotating shaft 3 to rotate, thus realizing energy conversion. The structure creates the conditions for nozzle rotation. First, the inclined hole 22 greatly enhances the kinetic energy of the water flow when it enters. Second, under the action of high-speed fluid flow, the turbine blades 32 are pushed to rotate, which in turn drives the rotating shaft 3 to rotate. Third, the counterweight steel balls maintain a certain inertia under the impact of water flow, reducing the probability of stopping. Fourth, the nozzle spacing of the diverting rod 6 is arranged according to the Fibonacci sequence to optimize the uniformity of coverage. Fifth, the rotation structure is optimized. The upper flexible sealing gasket and the guide part 31 cannot rotate relative to each other in the direction of rotation due to the large friction. Similarly, the lower flexible sealing gasket and the support step 24 cannot rotate relative to each other. The first ceramic gasket 42 and the second ceramic gasket 43, which have relatively low friction, are wear-resistant and can rotate relative to each other, providing a basis for the rotation of the rotating shaft 3.

[0042] This utility model has a simple and reasonable structure. As long as there is a pressurized water source, it can rotate and spray, and can evenly cover the sprayed surface. It has strong practicality and significant economic and social benefits.

[0043] In this embodiment, the outer base 1 includes an upper base 14 and a lower base 15 that are connected and fixed to each other, and a first sealing ring 45 is provided at the connection point. Specifically, the inner base 2 includes an upper cover 25 and a lower cover 26 that are connected and fixed to each other, and a second sealing ring 46 is provided at the connection point; the lower base 15 is provided with an inner step 16, and the inner step 16 is provided with a third sealing ring 47, and the lower cover 26 is supported on the third sealing ring 47. This splicing structure facilitates assembly and maintenance.

[0044] Specifically, the upper flexible sealing ring 41 and the lower flexible sealing ring 44 are nitrile sealing rings.

[0045] In this embodiment, the lower end of the rotating shaft 3 is threadedly connected to the connecting seat 7, and the diverter seat 5 is threadedly connected to the connecting seat 7. The channel inside the rotating shaft 3 is sequentially connected to the connecting seat 7 and the diverter seat 5.

[0046] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0048] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A multi-head self-driven rotary nozzle, characterized in that: It includes an outer base (1), an inner base (2) and a rotating shaft (3). The outer base (1) is provided with a receiving cavity (11), and the top of the outer base (1) is provided with a water source connector (12) that connects to the receiving cavity (11). The inner base (2) is installed in the receiving cavity (11) and a swirling cavity (21) is formed inside it. A water inlet space (13) is left between the upper part of the receiving cavity (11) and the upper end face of the inner base (2). The top of the inner base (2) is provided with an inclined hole (22) that connects the swirling cavity (21) and the water inlet space (13). A clearance hole (23) is formed through the bottom of the swirling cavity (21). The rotating shaft (3) is rotatably mounted in the swirling cavity (21) of the inner base (2) and extends out of the inner base (2) through the relief hole (23). The upper end of the hollow rotating shaft (3) is connected to the swirling cavity (21) and is provided with a guide section (31). The guide section (31) is provided with turbine blades (32), and a counterweight steel ball (8) is placed at the turbine blades (32). The inner base (2) has a support step (24) on the side wall of the clearance hole (23). The support step (24) is provided with an upper flexible sealing ring (41), a first ceramic pad (42), a second ceramic pad (43) and a lower flexible sealing ring (44) stacked from top to bottom. The guide part (31) abuts against the upper flexible sealing ring (41) downwards. The first ceramic pad (42) and the second ceramic pad (43) can rotate relative to each other. The lower end of the rotating shaft (3) is provided with a flow divider seat (5). Multiple flow divider rods (6) are provided around the flow divider seat (5). Each flow divider rod (6) is provided with a nozzle. The nozzle is connected to the lower end of the rotating shaft (3) through the flow divider rod (6) and the channel in the flow divider seat (5). The lower end of the flow divider seat (5) is also provided with a nozzle connected to the lower end of the rotating shaft (3).

2. The multi-head self-driven rotary nozzle according to claim 1, characterized in that: The outer base (1) includes an upper base (14) and a lower base (15) that are connected and fixed to each other, and a first sealing ring (45) is provided at the connection point.

3. A multi-head self-driven rotary nozzle according to claim 2, characterized in that: The inner base (2) includes an upper cover (25) and a lower cover (26) that are connected and fixed to each other, and a second sealing ring (46) is provided at the connection point; the lower base (15) is provided with an inner step (16), the inner step (16) is provided with a third sealing ring (47), and the lower cover (26) is supported on the third sealing ring (47).

4. A multi-head self-driven rotary nozzle according to claim 1, characterized in that: The upper flexible sealing ring (41) and the lower flexible sealing ring (44) are nitrile sealing rings.

5. A multi-head self-driven rotary nozzle according to claim 1, characterized in that: The two inclined holes (22) are arranged symmetrically with respect to the axis of the rotating shaft (3).

6. A multi-head self-driven rotary nozzle according to claim 1, characterized in that: The number of counterweight steel balls (8) is more than two, and different counterweight steel balls (8) are loosely placed between different adjacent turbine blades (32).

7. A multi-head self-driven rotary nozzle according to claim 1, characterized in that: The lower end of the rotating shaft (3) is threadedly connected to a connecting seat (7), and the diverter seat (5) and the connecting seat (7) are threadedly connected to each other.

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