Rotary spray header

Abstract

The utility model discloses a rotary spray header, which is characterized in that a pre-embedded seat is wrapped by a base, a water inlet port and a water outlet port are arranged on the pre-embedded seat, and a water inlet joint is connected onto the water inlet port; a fixed sleeve is connected to the water outlet port, a taper cavity is arranged in the fixed sleeve to wrap the inner core, a movable gap is formed between the inner core and the taper cavity, the inner core is in taper design, a spiral groove is formed in the outer wall of the inner core, the axis of the inner core is in hollow design, and an inclined flow guide hole is formed in the side wall of the inner core to communicate the axis with the movable gap. The movable gap is communicated with the outside of the fixed sleeve through the pressure relief hole; a connecting part is arranged at the top of the inner core, a spraying end is fixed to the connecting part, and a plurality of branches and spraying holes are formed in the spraying end. External high-pressure liquid is guided into the inner core, in-situ rotation of the inner core is achieved by guiding the liquid into the movable gap outside the inner core, the branches are arranged at the top of the inner core, and the high-pressure liquid is continuously supplied into the spraying holes to achieve spraying while the inner core rotates.

Description

Technical Field

[0001] The utility model relates to the technical field of spray terminal accessories, in particular to a rotary spray head. Background Art

[0002] In the field of agriculture and gardening technology, flood irrigation or spraying is usually used to keep crops moisturized. The disadvantage of flood irrigation is that it consumes a lot of water, causes serious water loss, and causes serious waste of water resources; while the spraying method mostly uses fixed spraying, which has the disadvantage of fixed spraying points and limited spraying areas. It requires personnel to frequently change the location of the spraying points or fix multiple spraying heads in the spraying area, which brings a heavy labor burden to maintenance personnel and brings high cost investment.

[0003] In recent years, the more common type of sprinkler head in the agricultural or gardening fields is the self-rotating sprinkler head, which can rotate on the spot under the constraint of a spring, thereby spraying an annular area. However, the disadvantages of this type of sprinkler head in the prior art are: there are many accessories, and mechanical failures are prone to occur, resulting in loss of rotation function, affecting the spraying effect. In particular, when high-pressure water is supplied, the high-pressure impact causes disordered rotation, making the failure rate of this type of sprinkler head higher.

[0004] In view of the above, the technical problem that needs to be solved by those skilled in the art is: to design a rotatable sprinkler head with a simple structure, the purpose of which is to change the disadvantages of the current high-pressure sprinkler head that the rotation is disordered and the control components are easily damaged. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a rotary sprinkler head, which simplifies its internal control structure by improving the rotating structure, so that the sprinkler head can directly control the rotation speed through a high-pressure water source, thereby reducing the failure rate while reducing the manufacturing cost, and can increase the spraying area of ​​a single sprinkler head.

[0006] To achieve the above technical objectives, the utility model adopts the following scheme: a rotary sprinkler head, which includes a base, an embedded seat, a fixed sleeve, and an inner core; the base covers the embedded seat, and the embedded seat is provided with a water inlet port and a water outlet port, and the water inlet port is connected to the water inlet joint; the water outlet port is connected to the fixed sleeve, and a tapered chamber is provided inside the fixed sleeve, and the inner core is covered by the tapered chamber, and a movable gap is provided between the inner core and the tapered chamber, the inner core is of tapered design and a spiral groove is provided on the outer wall, the inner core axis is hollow, and an inclined guide hole is provided on the side wall of the inner core to connect the axis with the movable gap, and the movable gap is connected to the outside of the fixed sleeve through the pressure relief hole; a threaded connection portion is provided on the top of the inner core, a spraying end is fixed on the threaded connection portion, a plurality of branches are provided on the spraying end, and the branches are provided with injection holes.

[0007] The spray holes are arranged on the spray pipe, and a plurality of branches are connected and fixed to the spray pipe; the spray holes are multiple and include inclined spray holes and vertical spray holes.

[0008] A plurality of fixing holes are arranged on the bottom surface of the base for connecting and fixing with an external support member.

[0009] The pressure relief hole is provided with a pressure relief valve, and the pressure relief valve is directly connected to the outside to achieve pressure relief.

[0010] A pressure relief valve is provided on the pressure relief hole through a pressure relief pipe, and the pressure relief valve connects the movable gap and the inside of the water inlet joint into one; a guide cone cap is provided in the internal chamber of the water inlet joint, and the guide cone cap blocks the guide hole of the pressure relief valve to prevent the high-pressure liquid inside the water inlet joint from directly entering the guide hole of the pressure relief valve in reverse.

[0011] A bottom supporting flange is arranged on the bottom edge of the guide cone cap, and an elastic supporting sheet is arranged on the top surface of the guide cone cap. The elastic supporting sheet squeezes and supports the guide cone cap inside the water inlet joint.

[0012] A vertical connection ring is arranged on the top of the embedded seat, an external thread is arranged on the periphery of the vertical connection ring, a plug-in groove is arranged between the vertical connection ring and the base, and a sealing gasket is arranged between the bottom end of the fixed sleeve and the plug-in groove after the fixed sleeve cooperates with the external thread.

[0013] The beneficial effects of the utility model are as follows: the utility model covers the embedded seat with the base, and the embedded seat is provided with a water inlet port and a water outlet port, and the water inlet port is connected to the water inlet joint; the water outlet port is connected to a fixed sleeve, and a tapered chamber is provided inside the fixed sleeve, and an inner core is covered by the tapered chamber, and a movable gap is provided between the inner core and the tapered chamber, the inner core is tapered and a spiral groove is provided on the outer wall, the inner core axis is hollow, and an inclined guide hole is provided on the side wall of the inner core to connect the axis with the movable gap, and the movable gap is connected with the outside of the fixed sleeve through the pressure relief hole; a connecting part is provided on the top of the inner core, a spraying end is fixed on the connecting part, a plurality of branches are provided on the spraying end, and injection holes are provided on the branches. After the above structure is set, the utility model guides the external high-pressure liquid into the inner core, and realizes the inner core to rotate in situ by guiding the liquid to the movable gap outside the inner core. A plurality of branches are arranged on the top of the inner core. While the inner core rotates, the high-pressure liquid is continuously supplied to the injection hole to realize spraying. This kind of spraying can realize circular spraying without dead angles, and has good spraying effect and high efficiency.

[0014] The utility model has novel structural design, simple structure, low failure rate and easy maintenance, overcomes the disadvantages of the prior art and is an ideal rotary sprinkler head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0017] Figure 3 The three-dimensional structure of Example 2 is shown in FIG. Figure Ⅰ ;

[0018] Figure 4 The three-dimensional structure of Example 2 is shown in FIG. Figure II ;

[0019] Figure 5 This is a schematic diagram of the bottom three-dimensional structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide cone cap;

[0022] In the accompanying drawings: 1, base, 11, hand-held part, 12, fixing hole, 2, fixed sleeve, 21, sleeve force application part, 22, movable gap, 23, liquid collecting tank, 3, embedded seat, 31, vertical connecting ring, 32, water inlet port, 33, plug-in slot, 34, sealing gasket, 35, water outlet port, 4, inner core, 41, threaded connection part, 42, inner core force application part, 43, spiral groove, 44, inclined guide hole, 45, plug-in section, 46, support end, 5, spray Tube, 51, nozzle force end, 52, vertical spray hole, 53, inclined spray hole, 6, pressure relief hole end plug, 61, pressure relief pipe, 62, pressure relief seat, 63, pressure relief valve, 64, extension pipe, 65, pressure relief hole, 66, hanging screw end, 67, valve inner core, 7, water inlet joint, 8, guide cone cap, 81, bottom support flange, 82, elastic support sheet, 83, elastic support end, 9, spray end, 91, branch, 92, positioning ring, 93, end thread. DETAILED DESCRIPTION

[0023] Embodiment 1: As attached Figure 1 , 2As shown in , 4, 5, and 6, a rotary sprinkler head includes a base 1, an embedded seat 3, a fixed sleeve 2, and an inner core 4; the base 1 is made of plastic material, and the base 1 covers the embedded seat 3 made of stainless steel or copper. The embedded seat 3 is provided with a water inlet port 32 and a water outlet port 35, and the water inlet port 32 is connected to a water inlet connector 7, through which the device can be connected to an external high-pressure water supply pipe. A plurality of fixing holes 12 are provided on the bottom surface of the base 1 for connecting and fixing with an external support member. The base 1 is also provided with a hand-held portion 11 for holding the rotary sprinkler head.

[0024] The water outlet port 35 is connected with a fixed sleeve 2, and the specific connection structure is as follows: a vertical connection ring 31 is provided on the top of the embedded seat 3, and an external thread is provided on the vertical connection ring 31. A plug-in slot 33 is formed between the vertical connection ring 31 and the base 1. After the fixed sleeve 2 is matched with the external thread, the bottom end of the fixed sleeve 2 is inserted into the plug-in slot 33. A sealing gasket 34 is provided at the bottom of the fixed sleeve 2, which can prevent liquid leakage when the fixed sleeve 2 is connected by hanging and twisting. To facilitate assembly, the fixed sleeve 2 is also provided with a sleeve force applying part 21 for clamping with a wrench and applying force for hanging and twisting.

[0025] Furthermore, a tapered chamber is provided inside the fixed sleeve 2, and the inner core 4 is covered by the tapered chamber. The inner core 4 is also provided with an outer cone structure. A movable gap 22 is provided between the inner core 4 and the tapered chamber. The inner core 4 is tapered and a spiral groove 43 is provided on the outer wall. The axis of the inner core 4 is hollow, and an inclined guide hole 44 is provided on the side wall of the inner core 4 to connect the axis with the movable gap 22. The movable gap 22 is connected to the outside of the fixed sleeve 2 through the pressure relief hole.

[0026] Through the above structural arrangement, when the liquid in the water outlet port enters the inner core 4, the high-pressure liquid enters the movable gap 22 through the inclined guide hole 44. Under the thrust of the high-pressure liquid, combined with the spiral thrust of the spiral groove 43, the inner core 4 can be promoted to rotate in situ. In this embodiment, the fixed sleeve 2 is further provided with an annular liquid collecting groove 23 on the inner wall, and the liquid is concentrated through the liquid collecting groove 23. A pressure relief hole is provided on the liquid collecting groove 23, such as Figure 2 As shown, a pressure relief hole end plug 6 is fixed on the pressure relief hole, an extension tube 64 is extended on the pressure relief hole end plug 6, a pressure relief hole 65 is arranged on the extension tube 64, a pressure relief valve 63 is arranged in the extension tube 64, and the pressure relief valve 63 is composed of a hanging screw end 66 and a valve inner core 67. The pressure relief valve here is directly connected to the outside to achieve pressure relief. In the pressure relief state, the inner core 4 can be driven to rotate in place.

[0027] The utility model is provided with a threaded connection part 41 and an inner core force-applying part 42 at the top of the inner core 4, a spraying end 9 is fixed on the threaded connection part 41, a plurality of branches 91 are provided on the spraying end 9, a positioning ring 92 and an end thread 93 are provided on the branches 91, and the fixation with the nozzle 5 is achieved through the end thread 93. In this embodiment, there are three branches 91, and it should be noted that those skilled in the art can increase or decrease the number of the above branches. The nozzle 5 is provided with a spray hole, and the spray hole is multiple and includes an inclined spray hole 53 and a vertical spray hole 52. Normally, the inclined spray hole 53 is provided on the outside, and its purpose is not to affect the normal spraying of the vertical spray hole 52.

[0028] Through the above structural arrangement, the utility model realizes high-pressure water supply by connecting the water inlet joint 7 with the external water supply pipe. The high-pressure liquid enters into the branches 91 on the spraying end 9 through the inner core 4, and then is sprayed outward through the inclined spray holes 53 and the vertical spray holes 52 on the nozzle 5. In this process, the high-pressure liquid also enters into the movable gap 22 through the inclined guide hole 44. Under the action of the spiral groove 43, turbulence is formed in the movable gap 22. However, under the supporting and guiding action of the plug-in section 45 and the supporting end 46, the inner core 4 only realizes in-situ rotation and axial floating, and sprays in a circular area centered on the rotary spray head. Because the utility model has a relatively simple structure and a low failure rate, when connected with the high-pressure liquid, the single rotary spray head can reach a large working area, which is practical and convenient.

[0029] Embodiment 2: In embodiment 1, the fixed sleeve 2 is provided with an annular liquid collecting groove 23 on the inner wall, and a pressure relief hole is provided on the liquid collecting groove 23. The pressure relief hole is fixed with a pressure relief hole end plug 6 and a pressure relief valve 63. This structure directly guides the liquid that promotes the rotation of the inner core 4 to the outside. If the liquid pressure is high, long-term impact on a certain area will cause damage or destruction to the area. In order to avoid the above problems, on the basis of the above structure disclosed in embodiment 1, as Figure 3 , 4 As shown in Figures 5 and 6, the utility model fixes a pressure relief hole end plug 6 on the pressure relief hole, connects a pressure relief pipe 61 through the pressure relief hole end plug 6, and a pressure relief valve 63 is provided on the rear side of the pressure relief pipe 61. The pressure relief valve 63 here connects the movable gap 22 and the inside of the water inlet joint 7 into one; when the inner core 4 is driven, the liquid used to drive the turbulent flow enters the water inlet port 32 through the pressure relief valve 63 on the rear side of the pressure relief pipe 61, and is used for high-pressure liquid circulation again.

[0030] However, the above design structure still has the following problems in actual operation: because the water outlet of the pressure relief valve 63 is the water inlet port 32, there is a risk that the high-pressure liquid in the water inlet port will flow back through the pressure relief valve 63, which will reduce the rotation efficiency of the inner core 4 and even cause impact on the turbulent liquid, directly causing the inner core 4 to be suspended and unable to rotate. In order to improve the above, the utility model also makes the following structural improvements: a guide cone cap 8 is arranged in the internal chamber of the water inlet joint 7, such as Figure 6 , 7 As shown, a bottom supporting flange 81 is provided on the bottom edge of the guide cone cap 8, and an elastic supporting sheet 82 is provided on the top surface of the guide cone cap 8. The elastic supporting sheets 82 are two cross-arranged sheets, and an elastic supporting end 83 is provided at the edge of each elastic supporting sheet 82 for external support. Through this structure, the guide cone cap 8 is squeezed and supported between the water inlet joint 7 and the water inlet port 32. In the above structure, the elastic supporting sheet 82 is supported by a stainless steel sheet, which has a certain elasticity. During assembly, the guide cone cap 8 is tightened by hanging and screwing the water inlet joint 7.

[0031] Through the above structure, the guide cone cap 8 blocks the guide hole of the pressure relief valve to prevent the high-pressure liquid inside the water inlet joint 7 from directly entering the guide hole of the pressure relief valve in reverse.

[0032] In summary, the utility model has novel structural design, simple structure, low failure rate and easy maintenance, which overcomes the disadvantages of the prior art and is an ideal rotary sprinkler head.

Claims

1. A rotary sprinkler head, characterized in that: It includes a base, an embedded seat, a fixed sleeve and an inner core; the base covers the embedded seat, the embedded seat is provided with a water inlet port and a water outlet port, the water inlet port is connected to the water inlet joint; the water outlet port is connected to the fixed sleeve, the interior of the fixed sleeve is provided with a tapered chamber, the tapered chamber covers the inner core, a movable gap is provided between the inner core and the tapered chamber, the inner core is of tapered design and a spiral groove is provided on the outer wall, the inner core is hollow in the axis, an inclined guide hole is provided on the side wall of the inner core to connect the axis with the movable gap, and the movable gap is connected to the outside of the fixed sleeve through the pressure relief hole; a threaded connection part is provided on the top of the inner core, a spraying end is fixed on the threaded connection part, a plurality of branches are provided on the spraying end, and injection holes are provided on the branches.

2. A rotary spray head as claimed in claim 1, characterized in that: The spray holes are arranged on the spray pipe, and a plurality of branches are connected and fixed to the spray pipe; the spray holes are multiple and include inclined spray holes and vertical spray holes.

3. A rotary spray head as claimed in claim 1, characterized in that: A plurality of fixing holes are arranged on the bottom surface of the base.

4. A rotary spray head as claimed in claim 1, characterized in that: The pressure relief hole is provided with a pressure relief valve, and the pressure relief valve is directly connected to the outside to achieve pressure relief.

5. A rotary spray head as claimed in claim 1, characterized in that: A pressure relief valve is provided on the pressure relief hole through a pressure relief pipe, and the pressure relief valve connects the movable gap and the inside of the water inlet joint into one; a guide cone cap is provided in the internal chamber of the water inlet joint, and the guide cone cap blocks the guide hole of the pressure relief valve.

6. A rotary spray head as claimed in claim 5, characterized in that: A bottom supporting flange is arranged on the bottom edge of the guide cone cap, and an elastic supporting sheet is arranged on the top surface of the guide cone cap. The elastic supporting sheet squeezes and supports the guide cone cap inside the water inlet joint.

7. A rotary spray head as claimed in claim 1, characterized in that: A vertical connection ring is arranged on the top of the embedded seat, an external thread is arranged on the periphery of the vertical connection ring, a plug-in groove is arranged between the vertical connection ring and the base, and a sealing gasket is arranged between the bottom end of the fixed sleeve and the plug-in groove after the fixed sleeve cooperates with the external thread.

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