Spray head suitable for liquid fertilizer spraying device

Abstract

The utility model relates to a sprayer suitable for a liquid fertilizer spraying device, which is arranged at the front end of the liquid fertilizer spraying device and comprises a distribution head, a distribution head adjusting disc and a circular truncated cone nozzle pipe, a semi-spherical groove is arranged in the distribution head, a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas are arranged on the groove wall of the semi-spherical groove, a plurality of small fertilizer outlet holes are densely distributed in the fertilizer outlet area; the distribution head adjusting disc is a round disc, a plurality of solid parts and hollow parts are arranged on the distribution head adjusting disc, the solid parts and the hollow parts are arranged at intervals, and the solid parts and the hollow parts respectively correspond to a plurality of fertilizer outlet areas and non-fertilizer outlet areas of the distribution head; the circular-truncated-cone-shaped nozzle pipe is big at the left end and small at the right end and is circular-truncated-cone-shaped; the front end of the distribution head and the rear end of the circular truncated cone nozzle pipe are rotationally arranged at the two ends of the distribution head adjusting disc respectively, and the front end opening, exposed out of the circular truncated cone nozzle pipe, of the distribution head is used as a nozzle.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural organic liquid fertilizer spraying fertilization technical field, concretely relates to a nozzle suitable for liquid fertilizer spraying device. BACKGROUND

[0002] In modern agricultural production, the application of organic liquid fertilizer plays a vital role in improving crop yield and quality. However, during the spraying process of organic liquid fertilizer, a series of difficult problems are faced.

[0003] At present, the biggest problem in the spraying of organic liquid fertilizer is that the spraying type of the nozzle is difficult to adjust. On the one hand, if atomizing nozzle is selected for spraying, the liquid fertilizer injection flow cannot be adjusted. On the other hand, if atomizing spraying is not adopted, the spraying of liquid fertilizer will be uneven, which not only leads to excessive liquid fertilizer in some areas, causing waste and environmental pollution, and affects the growth and development of crops. In addition, a large amount of liquid fertilizer covering the ground for a long time will cause serious pollution to the environment such as soil and water source, and destroy the ecological balance.

[0004] In view of the problems that the liquid fertilizer injection flow cannot be adjusted and the environment is polluted during the spraying process of the current organic liquid fertilizer, it has been difficult to find a reasonable and effective solution in the industry. Therefore, in order to realize the adjustment of the liquid fertilizer injection flow and reduce the pollution to the environment, it is urgent to put forward an innovative nozzle installed on the tank car organic liquid fertilizer spraying device. UTILITY MODEL CONTENT

[0005] In view of the above problems, the utility model aims at providing a nozzle suitable for liquid fertilizer spraying device, which solves the problems that the liquid fertilizer injection flow cannot be adjusted and the environment is polluted during the spraying process of the current organic liquid fertilizer.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model discloses a nozzle suitable for liquid fertilizer spraying device, which is arranged at the front end of the liquid fertilizer spraying device and comprises a distribution head, a distribution head adjusting disc and a circular table nozzle pipe,

[0008] The distribution head is internally provided with a semicircular spherical groove, a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas are arranged on the groove wall of the semicircular spherical groove, and a plurality of fertilizer outlet small holes are densely arranged in the fertilizer outlet areas;

[0009] The distribution head adjusting disc is a circular disc, a plurality of solid parts and empty parts are arranged on the distribution head adjusting disc, the solid parts and the empty parts are arranged at intervals, and the plurality of solid parts and empty parts correspond to the plurality of fertilizer outlet areas and non-fertilizer outlet areas of the distribution head respectively;

[0010] The left end of the circular truncated cone nozzle pipe is large and the right end is small, which is in the shape of a circular truncated cone.

[0011] The front end of the distribution head and the rear end of the circular truncated cone nozzle pipe are respectively rotatably arranged at the two ends of the distribution head adjusting disc, and the front end port of the circular truncated cone nozzle pipe is exposed as a nozzle.

[0012] Preferably, when the front end of the distribution head and the rear end of the circular truncated cone nozzle pipe are respectively rotatably arranged at the two ends of the distribution head adjusting disc, by rotating the distribution head adjusting disc, the solid parts and the hollow parts of the distribution head adjusting disc can be respectively aligned with or staggered with the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head.

[0013] When the plurality of hollow parts of the distribution head adjusting disc are aligned with the plurality of fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head, the nozzle is completely conductive.

[0014] When the plurality of hollow parts of the distribution head adjusting disc are staggered with the plurality of fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head, the nozzle is not completely conductive, thereby achieving adjustment of the liquid fertilizer injection flow size.

[0015] Preferably, the front end of the distribution head is threadedly connected with the rear end of the distribution head adjusting disc, and the front end of the distribution head adjusting disc is threadedly connected with the rear end of the circular truncated cone nozzle pipe, thereby realizing that the front end of the distribution head and the rear end of the circular truncated cone nozzle pipe are respectively rotatably arranged at the two ends of the distribution head adjusting disc.

[0016] Preferably, a first fertilizer outlet main hole is arranged at the center of the groove wall of the semicircular spherical groove of the distribution head, and a second fertilizer outlet main hole is arranged at the center of the distribution head adjusting disc.

[0017] When the front end of the distribution head is threadedly connected with the rear end of the distribution head adjusting disc, the first fertilizer outlet main hole of the distribution head is aligned with and communicates with the second fertilizer outlet main hole of the distribution head adjusting disc.

[0018] Preferably, a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas are arranged on the groove wall of the semicircular spherical groove except the first fertilizer outlet main hole, a plurality of fertilizer outlet small holes are densely arranged in the fertilizer outlet areas, the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas are arranged around the first fertilizer outlet main hole as the center, and the fertilizer outlet areas and the non-fertilizer outlet areas are arranged at intervals.

[0019] Preferably, the nozzle is provided with a nozzle connecting pipe, and the nozzle is arranged at the front end of the liquid fertilizer injection device through the nozzle connecting pipe.

[0020] Preferably, an external thread is arranged on the front end outer wall of the nozzle connecting pipe, an internal thread is arranged on the rear end inner wall of the distribution head, and the rear end of the distribution head is threadedly connected with the front end of the nozzle connecting pipe.

[0021] Further, a spiral nozzle is further included, which is configured with an inner ferrule sleeve, and the spiral nozzle is sleeved on the front end nozzle of the circular table nozzle pipe through the inner ferrule sleeve.

[0022] Preferably, the shape of the rear end to the front end of the spiral nozzle is from large to small until a pointed end is formed, which is in a spiral shape.

[0023] Preferably, the outer wall of the front end of the circular table nozzle pipe is provided with external threads, the inner wall of the rear end of the inner ferrule sleeve is provided with internal threads, and the front end of the circular table nozzle pipe and the rear end of the inner ferrule sleeve are connected through threads; the outer wall of the rear end of the spiral nozzle is provided with external threads, the front end of the inner ferrule sleeve is provided with internal threads, and the rear end of the spiral nozzle and the front end of the inner ferrule sleeve are connected through threads.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] (1) The utility model discloses a nozzle suitable for liquid fertilizer injection device, which comprises a distribution head, a distribution head adjusting disc and a circular table nozzle pipe, the front end of the distribution head and the rear end of the circular table nozzle pipe are rotatably arranged at the two ends of the distribution head adjusting disc respectively, and by rotating the distribution head adjusting disc, the multiple solid parts and the multiple empty parts of the distribution head adjusting disc can be respectively opposite or staggered with the multiple fertilizer outlet areas and the multiple non-fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head, when the multiple empty parts of the distribution head adjusting disc are opposite to the multiple fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head, the nozzle is completely conductive, when the multiple empty parts of the distribution head adjusting disc are staggered with the multiple fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head, the nozzle is not completely conductive, thereby realizing the adjustment of the liquid fertilizer injection flow size.

[0026] (2) The utility model discloses a nozzle suitable for liquid fertilizer injection device, which is installed on the nozzle of the embodiment, and a nozzle with a spiral nozzle is obtained, which can atomize liquid fertilizer and reduce environmental pollution.

[0027] (3) The utility model discloses a nozzle suitable for liquid fertilizer injection device, which is connected through threads between the nozzle and the nozzle connecting pipe, and is detachably connected between the distribution head, the distribution head adjusting disc and the circular table nozzle pipe in the nozzle, the inner ferrule sleeve and the spiral nozzle, thereby forming a portable dismounting nozzle. By using the nozzle, the problems of unevenness and easy clogging of atomization in the organic liquid fertilizer spraying process can be effectively solved, the uniformity and coverage of the organic liquid fertilizer spraying can be significantly improved, the crops can better absorb nutrients, the growth and development of the crops can be promoted, and the agricultural production efficiency can be improved. The organic liquid fertilizer of different types is sprayed through the ingenious portable dismounting connection, and finally, the uniform fertilization and the effect of liquid fertilizer application are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the back view of the tail end of the fertilizer tank truck provided in Embodiment 1 of the utility model;

[0029] Figure 2 is the schematic view of the back of the tail end of the fertilizer tank truck after installing the liquid fertilizer spraying device. Figure 1

[0030] Figure 3 is the front view of the liquid fertilizer spraying device provided in Embodiment 2 of the utility model, which is provided with a spray head;

[0031] Figure 4 is the plan view of the liquid fertilizer spraying device provided in Embodiment 2 of the utility model; Figure 3

[0032] Figure 5 is the schematic view of the liquid fertilizer spraying device provided in Embodiment 5 of the utility model with a spray head with a spiral nozzle.

[0033] Figure 6 is the side view of the spray head provided in Embodiment 3 of the utility model; Figure 3

[0034] Figure 7 is the front view of the distribution head provided in Embodiment 3 of the utility model; Figure 6

[0035] Figure 8 is the front view of the distribution head adjusting disc provided in Embodiment 3 of the utility model. Figure 6

[0036] is the side view of the spray head with a spiral nozzle provided in Embodiment 4 of the utility model; Figure 9 Figure 5 is the right view of the spray head with a spiral nozzle provided in Embodiment 4 of the utility model;

[0037] Figure 10 Figure 9 is the longitudinal sectional view of the spray head with a spiral nozzle provided in Embodiment 4 of the utility model;

[0038] Figure 11 is the longitudinal perspective view of the spray head with a spiral nozzle provided in Embodiment 4 of the utility model. Figure 9

[0039] Figure 12 Figure 9

[0040] Mark explanation: 100-fertilizer tank truck, 101-fertilizer storage tank, 102-discharge pipe, 103-fertilizer spraying butt joint, 104-spraying on-off valve, 105-left emptying valve, 106-right emptying valve;

[0041] ​​​​​​​​​1-fertilizer conveying pipe, 10-fertilizer tank truck docking port, 11-fertilizer tank truck docking pipe section, 12-elbow pipe section, 13-pitch adjustment pipe section, 131-left push rod support pipe, 1310-left flange, 132-right push rod support pipe, 1320-right flange;

[0042] 2-nozzle, 20-nozzle connecting pipe, 21-distribution head, 210-first fertilizer outlet main hole, 211-fertilizer outlet small hole; 22-distribution head adjusting disc, 220-second fertilizer outlet main hole; 23-circular table nozzle pipe, 24-inner wire hoop sleeve, 25-spiral nozzle;

[0043] 3-rotation mechanism;

[0044] 4-pitch adjustment mechanism. DETAILED DESCRIPTION

[0045] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0046] It should be noted that "front end" in the present application refers to the end pointing to the nozzle 2 or the nozzle 2 located at the end of the fertilizer conveying pipe 1, and "rear end" refers to the end pointing to the fertilizer tank truck docking port 10 or the fertilizer tank truck docking port 10 located at the end of the fertilizer conveying pipe 1. Similarly, "front" refers to the direction pointing to the nozzle 2, and "rear" refers to the direction pointing to the fertilizer tank truck docking port 10.

[0047] Example 1: a fertilizer tank truck

[0048] Example 1 provides a fertilizer tank truck, the structure of which will be described in detail below with reference to the accompanying drawings.

[0049] Reference Figure 1 and Figure 2 The fertilizer tank truck 100 is a liquid fertilizer transport truck, which is provided with a fertilizer storage tank 101, and the organic liquid fertilizer is stored in the fertilizer storage tank 101. The tank wall of the fertilizer storage tank 101 is provided with a discharge pipe 102, the inlet end of the discharge pipe 102 is in communication with the discharge port of the fertilizer storage tank 101, and the outlet end of the discharge pipe 102 is arranged at the tail end of the fertilizer tank truck 100.

[0050] Among them, the organic liquid fertilizer in the fertilizer storage tank 101 can be conveyed from the discharge port of the fertilizer storage tank 101 to the inlet end of the discharge pipe 102, through the discharge pipe 102 to the outlet end of the discharge pipe 102.

[0051] In order to spray the organic liquid fertilizer in the fertilizer tanker 100, the discharge end of the discharge pipe 102 is provided with a fertilizer spraying interface 103 for connecting with the liquid fertilizer spraying device.

[0052] As is common knowledge in the field, in order to control the output of organic liquid fertilizer from the fertilizer injection interface 103, an injection switch valve 104 is provided on the pipeline where the fertilizer injection interface 103 is located.

[0053] To facilitate the emptying of the organic liquid fertilizer in the discharge pipe 102, the discharge end of the discharge pipe 102 also includes a left vent valve 105 and a right vent valve 106. The left vent valve 105 and the right vent valve 106 are located on the left and right sides of the lower part of the tail end of the fertilizer tanker 100, respectively. The fertilizer injection interface 103 is located at the upper part of the tail end of the fertilizer tanker 100. The fertilizer injection interface 103, the left vent valve 105 and the right vent valve 106 are respectively connected to the discharge end of the discharge pipe 102.

[0054] The connection relationship between the fertilizer injection interface 103, the left vent valve 105, and the right vent valve 106 at the tail end of the fertilizer tanker 100 and the discharge end of the discharge pipe 102 is as follows: Figure 2 As shown.

[0055] Specifically, the fertilizer storage tank 101 and its discharge pipe 102 of the fertilizer tanker truck 100 have good sealing and stability. The fertilizer tanker truck 100 is professionally designed to adapt to different road conditions and transportation distances, and can efficiently and safely transport organic liquid fertilizer to mountainous and hilly areas with complex terrain. During the transportation of organic liquid fertilizer, it ensures that the organic liquid fertilizer will not leak or deteriorate.

[0056] Example 2: A liquid fertilizer spraying device suitable for fertilizer tank trucks

[0057] Example 2 provides a liquid fertilizer spraying device suitable for fertilizer tankers, which is installed on the fertilizer tanker of Example 1. Its structure will be described in detail below with reference to the accompanying drawings.

[0058] refer to Figure 3 and Figure 4 The liquid fertilizer spraying device includes a fertilizer delivery pipe 1, a nozzle 2, a rotating mechanism 3, and a pitch adjustment mechanism 4.

[0059] The rear end of the fertilizer transport pipeline 1 serves as the input end, and the front end of the fertilizer transport pipeline 1 serves as the output end. The rear end of the fertilizer transport pipeline 1 is provided with a fertilizer tanker interface 10, and the front end is provided with a nozzle 2.

[0060] The fertilizer tank truck docking interface 10 is used for docking with the fertilizer tank truck 100 and receiving the organic liquid fertilizer in the fertilizer tank truck 100, and the spray head 2 is used for spraying the organic liquid fertilizer in the fertilizer conveying pipeline 1 outward.

[0061] The rotating mechanism 3 is arranged on the fertilizer conveying pipeline 1 and can make the spray head 2 rotate relative to the rear end of the fertilizer conveying pipeline 1, so as to realize the rotation of the organic liquid fertilizer outward.

[0062] The pitch adjusting mechanism 4 is further arranged on the fertilizer conveying pipeline 1 and can make the spray head 2 pitch upward or downward, so as to realize the pitch of the organic liquid fertilizer outward at an angle.

[0063] As a specific embodiment, refer to Figure 3 The fertilizer conveying pipeline 1 includes a fertilizer tank truck docking pipe section 11, a bent pipe section 12 and a pitch adjusting pipe section 13.

[0064] The fertilizer tank truck docking pipe section 11 is docked with the rear end of the bent pipe section 12 through the rotating mechanism 3, the front end of the bent pipe section 12 and the spray head 2 are respectively docked and communicated with the two ends of the pitch adjusting pipe section 13, thereby forming a continuous fertilizer conveying pipeline 1.

[0065] More specifically, the bottom surface and the top surface of the rotating mechanism 3 are respectively provided with a fixed flange 31 and a rotating flange 32,

[0066] The rear end of the fertilizer tank truck docking pipe section 11 is provided with a fertilizer tank truck docking interface 10 for docking with the fertilizer tank truck 100, and the front end is fixedly connected with the fixed flange 31 of the rotating mechanism 3.

[0067] The two ends of the pitch adjusting pipe section 13 are respectively provided with a left flange plate 1310 and a right flange plate 1320,

[0068] The rear end of the bent pipe section 12 is fixed on the rotating flange 32 of the rotating mechanism 3, and the front end is connected with the left flange plate 1310 of the pitch adjusting pipe section 13 through a flange.

[0069] The spray head 2 is provided with a spray head connecting pipe 20, the rear end of the spray head connecting pipe 20 is provided with a flange plate, and the flange plate at the rear end of the spray head connecting pipe 20 of the spray head 2 is connected with the right flange plate 1320 of the pitch adjusting pipe section 13 through a flange.

[0070] Specifically, the pitch adjusting mechanism 4 is arranged on the pitch adjusting pipe section 13.

[0071] When the liquid fertilizer needs to be sprayed, the spiral nozzle 25 is installed and fixed on the nozzle outlet of the nozzle 2, and the nozzle with the spiral nozzle 25 is obtained, and the liquid fertilizer spraying device becomes the liquid fertilizer spraying device with the nozzle with the spiral nozzle 25, as shown in Figure 5 .

[0072] Embodiment 3: A nozzle suitable for a liquid fertilizer spraying device

[0073] Embodiment 3 provides a nozzle suitable for a liquid fertilizer spraying device, which is arranged at the front end of the liquid fertilizer spraying device of embodiment 2. The structure of the nozzle is described in detail below with reference to the accompanying drawings.

[0074] Referring to Figures 6 to 8 , the nozzle 2 comprises a distribution head 21, a distribution head adjusting disc 22, and a circular truncated cone nozzle outlet pipe 23,

[0075] The distribution head 21 is internally provided with a semispherical groove, as shown in Figure 11 and Figure 12 ,

[0076] The semispherical groove is provided with a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas, as shown in Figure 7 , and a plurality of fertilizer outlet holes 211 are densely arranged in the fertilizer outlet areas;

[0077] The distribution head adjusting disc 22 is a circular disc, and a plurality of solid parts and hollow parts are arranged on the distribution head adjusting disc 22, as shown in Figure 8 , the solid parts and the hollow parts are arranged at intervals, and the plurality of solid parts and the plurality of hollow parts correspond to the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas of the distribution head 21, respectively;

[0078] The circular truncated cone nozzle outlet pipe 23 is large at the left end and small at the right end, and has a circular truncated cone shape;

[0079] The front end of the distribution head 21 and the rear end of the circular truncated cone nozzle outlet pipe 23 are rotatably arranged at the two ends of the distribution head adjusting disc 22, respectively, and the front end port of the circular truncated cone nozzle outlet pipe 23 is exposed as a nozzle outlet, so as to ensure that the plurality of solid parts and the plurality of hollow parts of the distribution head adjusting disc 22 are respectively aligned with or staggered with the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas on the groove wall of the semispherical groove of the distribution head 21 by rotating the distribution head adjusting disc 22, the nozzle 2 is completely conductive when the plurality of hollow parts of the distribution head adjusting disc 22 are aligned with the plurality of fertilizer outlet areas on the groove wall of the semispherical groove of the distribution head 21, and the nozzle 2 is not completely conductive when the plurality of hollow parts of the distribution head adjusting disc 22 are staggered with the plurality of fertilizer outlet areas on the groove wall of the semispherical groove of the distribution head 21, thereby realizing the adjustment of the liquid fertilizer spraying flow.

[0080] Specifically, the adjustment of the organic liquid fertilizer injection mode can be realized by rotating the distribution head adjusting disc 22. The specific method is as follows: by rotating the distribution head adjusting disc 22, the solid part and the empty part of the distribution head adjusting disc 22 are respectively opposite or staggered with the fertilizer outlet area and the non-fertilizer outlet area of the distribution head 21, so as to realize the adjustment of the liquid fertilizer injection flow size, and even the adjusting disc can adjust the liquid fertilizer injection shape.

[0081] As a specific connection mode, the front end of the distribution head 21 is connected with the rear end of the distribution head adjusting disc 22 through threads, and the front end of the distribution head adjusting disc 22 is connected with the rear end of the circular cone nozzle pipe 23 through threads, so that the front end of the distribution head 21 and the rear end of the circular cone nozzle pipe 23 are respectively rotatably arranged at the two ends of the distribution head adjusting disc 22.

[0082] In order to improve the injection efficiency of the spray head 2, a first fertilizer outlet main hole 210 is arranged in the center of the groove wall of the semicircular spherical groove of the distribution head 21, and a second fertilizer outlet main hole 220 is arranged in the center of the distribution head adjusting disc 22.

[0083] When the front end of the distribution head 21 is connected with the rear end of the distribution head adjusting disc 22 through threads, the first fertilizer outlet main hole 210 of the distribution head 21 is opposite and connected with the second fertilizer outlet main hole 220 of the distribution head adjusting disc 22, as shown in Figure 11 and Figure 12 .

[0084] Preferably, a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas are arranged on the groove wall of the semicircular spherical groove except the first fertilizer outlet main hole 210, a plurality of fertilizer outlet small holes 211 are densely arranged in the fertilizer outlet area, the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas are arranged around the first fertilizer outlet main hole 210 as the center, and the fertilizer outlet area and the non-fertilizer outlet area are arranged separately from each other, as shown in Figure 7 .

[0085] Continuing to refer to Figures 2 to 4 , the spray head 2 is provided with a spray head connecting pipe 20, and the spray head 2 is arranged at the front end of the liquid fertilizer injection device through the spray head connecting pipe 20.

[0086] Among them, the front end of the spray head connecting pipe 20 is connected with the spray head 2 through threads, the rear end of the spray head connecting pipe 20 is provided with a flange plate, and the flange plate at the rear end of the spray head connecting pipe 20 of the spray head 2 is connected with the right flange plate 1320 of the pitch adjusting pipe section 13 through flanges.

[0087] Specifically, the outer wall of the front end of the spray head connecting pipe 20 is provided with external threads, the inner wall of the rear end of the distribution head 21 is provided with internal threads, and the rear end of the distribution head 21 is connected with the front end of the spray head connecting pipe 20 through threads.

[0088] Embodiment 4: a spray head with a spiral nozzle

[0089] In the spray head suitable for the liquid fertilizer injection device provided in Embodiment 3, Embodiment 4 installs the spiral nozzle 25 on the spray opening of the spray head of Embodiment 3, to obtain a spray head with the spiral nozzle 25, which can atomize the liquid fertilizer, thereby reducing environmental pollution.

[0090] Specifically, referring to Figures 9 to 12 The spiral nozzle 25 is sleeved on the front end spray opening of the circular cone spray opening pipe 23 of the spray head of Embodiment 3 through the inner thread sleeve 24.

[0091] The shape of the spiral nozzle 25 from the rear end to the front end is gradually reduced until a pointed end is formed, in a spiral shape.

[0092] The spiral nozzle 25 is used for atomizing the liquid fertilizer.

[0093] Specifically, the outer wall of the front end of the circular cone spray opening pipe 23 is provided with external threads, the inner wall of the rear end of the inner thread sleeve 24 is provided with internal threads, and the front end of the circular cone spray opening pipe 23 is threadedly connected with the rear end of the inner thread sleeve 24; the outer wall of the rear end of the spiral nozzle 25 is provided with external threads, the front end of the inner thread sleeve 24 is provided with internal threads, and the rear end of the spiral nozzle 25 is threadedly connected with the front end of the inner thread sleeve 24.

[0094] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A nozzle for a liquid manure injection device, provided at a front end of the liquid manure injection device, characterized in that It comprises a distribution head (21), a distribution head adjusting disc (22) and a circular table spout pipe (23), The distribution head (21) is internally provided with a semicircular spherical groove, and a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas are arranged on the groove wall of the semicircular spherical groove, and a plurality of fertilizer outlet small holes (211) are densely arranged in the fertilizer outlet areas; The distribution head adjusting disc (22) is a circular disc, a plurality of solid parts and empty parts are arranged on the distribution head adjusting disc (22), the solid parts and the empty parts are arranged at intervals, and the plurality of solid parts and the plurality of empty parts correspond to the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas of the distribution head (21) respectively; The left end of the circular table spout pipe (23) is large, the right end is small, and the circular table spout pipe (23) is in the shape of a circular table; The front end of the distribution head (21) and the rear end of the circular table spout pipe (23) are rotatably arranged at both ends of the distribution head adjusting disc (22) respectively, and the front end port of the circular table spout pipe (23) is exposed as a spout.

2. The nozzle suitable for liquid fertilizer injection device according to claim 1, wherein When the front end of the distribution head (21) and the rear end of the circular table spout pipe (23) are rotatably arranged at both ends of the distribution head adjusting disc (22) respectively, by rotating the distribution head adjusting disc (22), the plurality of solid parts and the plurality of empty parts of the distribution head adjusting disc (22) can be respectively opposite to or staggered with the plurality of fertilizer outlet areas and the plurality of non-fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head (21), When the plurality of empty parts of the distribution head adjusting disc (22) are opposite to the plurality of fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head (21), the nozzle (2) is completely conductive; When the plurality of empty parts of the distribution head adjusting disc (22) are staggered with the plurality of fertilizer outlet areas on the groove wall of the semicircular spherical groove of the distribution head (21), the nozzle (2) is not completely conductive, thereby realizing the adjustment of the liquid fertilizer injection flow size.

3. The nozzle suitable for liquid fertilizer injection device according to claim 1, wherein The front end of the distribution head (21) is connected with the rear end of the distribution head adjusting disc (22) through threads, and the front end of the distribution head adjusting disc (22) is connected with the rear end of the circular table spout pipe (23) through threads, thereby realizing that the front end of the distribution head (21) and the rear end of the circular table spout pipe (23) are rotatably arranged at both ends of the distribution head adjusting disc (22) respectively.

4. The nozzle suitable for liquid fertilizer injection device according to claim 1, wherein A first fertilizer outlet main hole (210) is arranged at the center of the groove wall of the semicircular spherical groove of the distribution head (21), and a second fertilizer outlet main hole (220) is arranged at the center of the distribution head adjusting disc (22); When the front end of the distribution head (21) is connected with the rear end of the distribution head adjusting disc (22) through threads, the first fertilizer outlet main hole (210) of the distribution head (21) is opposite to and communicates with the second fertilizer outlet main hole (220) of the distribution head adjusting disc (22).

5. The nozzle suitable for liquid fertilizer injection device according to claim 4, wherein The slot wall of the semi-spherical slot outside the first fertilizer outlet main hole (210) is provided with a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas, a plurality of fertilizer outlet small holes (211) are densely arranged in the fertilizer outlet area, a plurality of fertilizer outlet areas and a plurality of non-fertilizer outlet areas are arranged around the first fertilizer outlet main hole (210) as the center, and the fertilizer outlet area and the non-fertilizer outlet area are arranged separately from each other.

6. The nozzle suitable for liquid fertilizer injection device according to claim 1, characterized in that, The nozzle (2) is provided with a nozzle connecting pipe (20), and the nozzle (2) is arranged at the front end of the liquid fertilizer injection device through the nozzle connecting pipe (20).

7. The nozzle suitable for liquid fertilizer injection device according to claim 6, characterized in that, The front end outer wall of the nozzle connecting pipe (20) is provided with external threads, the rear end inner wall of the distribution head (21) is provided with internal threads, and the rear end of the distribution head (21) and the front end of the nozzle connecting pipe (20) are connected through threads.

8. The spray head for use in a liquid manure injection device according to claim 1, characterized in that Further comprising a spiral nozzle (25), The spiral nozzle (25) is provided with an inner wire clamp sleeve (24), and the spiral nozzle (25) is sleeved on the front end nozzle of the circular cone nozzle pipe (23) through the inner wire clamp sleeve (24).

9. The nozzle suitable for liquid fertilizer injection device according to claim 8, characterized in that, The shape of the spiral nozzle (25) from the rear end to the front end is from large to small, until a sharp tip is formed, and the spiral nozzle (25) is in a spiral shape.

10. The nozzle suitable for liquid fertilizer injection device according to claim 8, characterized in that, The front end outer wall of the circular cone nozzle pipe (23) is provided with external threads, the rear end inner wall of the inner wire clamp sleeve (24) is provided with internal threads, and the front end of the circular cone nozzle pipe (23) and the rear end of the inner wire clamp sleeve (24) are connected through threads; the rear end outer wall of the spiral nozzle (25) is provided with external threads, the front end of the inner wire clamp sleeve (24) is provided with internal threads, and the rear end of the spiral nozzle (25) and the front end of the inner wire clamp sleeve (24) are connected through threads.

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