Leakage-proof filtering nozzle for pesticide spraying
By adopting an annular threaded groove and a transparent semi-circular retaining frame design on the pesticide spray head, the leakage problem caused by the wear of the sealing ring is solved, achieving a leak-proof effect for the pesticide spray head, improving pesticide utilization and environmental safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 莒南县农业技术推广中心
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
The sealing rings of existing pesticide sprayers are susceptible to corrosion and wear, leading to leakage at the connection points. Subtle leaks are difficult to detect in a timely manner, affecting pesticide utilization and environmental safety.
It adopts an annular threaded groove and sealing plate structure, combined with a transparent semi-circular card frame and magnetic strip design to achieve secondary sealing, and collects leaked liquid through a collection tank, which is convenient for observation and timely detection of leaks.
It effectively reduces the risk of pesticide leakage during long-term use, improves pesticide utilization and environmental safety, and facilitates the timely detection and handling of minor leaks.
Smart Images

Figure CN224208350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cone crushers, and in particular to a pesticide spraying leak-proof filter nozzle. Background Technology
[0002] In agricultural production, pesticide spraying is a crucial step in pest and disease control. The spray nozzle, as the core component of the application equipment, directly affects pesticide utilization, operational efficiency, and environmental safety. Currently, all existing pesticides come with filter nozzles, which are connected to the pesticide spraying rod via a threaded structure and a sealing ring. Over prolonged use, the sealing ring is prone to corrosion and wear, leading to pesticide leakage at the connection point. Some subtle leaks may go undetected, potentially causing harm to personnel. Utility Model Content
[0003] In order to solve the problems in the background art, this utility model adopts the following technical solution:
[0004] A pesticide spraying leak-proof filter nozzle includes a spray rod connected to the filter nozzle and two sets of opposing semi-circular retaining frames. A sealing plate is fixedly sleeved on the outer side of both the spray rod and the filter nozzle near one end. An annular threaded groove is provided at the upper end of the spray rod, and a threaded sleeve is fixedly connected to the bottom of the filter nozzle. The threaded sleeve is threaded into the annular threaded groove at the upper end of the spray rod, and the two sets of semi-circular retaining frames are matched and locked onto the outer side of the adjacent sealing plates.
[0005] Preferably, the upper end of the outer sealing plate of the spray bar is provided with an annular slot, and the bottom of the outer sealing plate of the filter nozzle is provided with an annular locking block that engages with the annular slot.
[0006] Preferably, the annular block is made of rubber, and a sealing gasket is provided on the inner wall of the annular slot.
[0007] Preferably, the semi-circular frame is made of transparent acrylic material.
[0008] Preferably, the mating surfaces of adjacent semicircular card frames are provided with magnetic attracting sheets that attract each other magnetically.
[0009] Preferably, the inner wall of the semi-circular card frame is provided with a collection groove that fits between the gaps of adjacent sealing plates.
[0010] Compared with the prior art, the present invention has the following beneficial effects;
[0011] This invention uses a connecting sleeve at the bottom of the filter nozzle to snap into the annular groove in the connector at the upper end of the spray rod and connects with threads. This annular groove has a certain "leakage buffering" effect. Combined with the sealing plate and rubber snap-fit structure on the opposite sides after the two are connected, it can greatly reduce the risk of pesticide leakage during long-term use. In addition, a transparent semi-circular frame is portablely installed on the outside of the connection between the two, and a collection groove is set to connect to the outside of the contact surface of the adjacent sealing plate. After each pesticide spraying, it is possible to observe whether there is any liquid residue inside, which not only helps prevent leakage but also allows for the timely detection of some inconspicuous leaks, facilitating the implementation of protective measures in advance and improving the overall practical effect. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the mating surface structure of the upper and lower sealing plates of this utility model;
[0015] Figure 4 This is a top view of the semi-circular card frame structure of this utility model.
[0016] In the diagram: 1-Spray bar, 2-Filter nozzle, 3-Semi-circular frame, 4-Sealing plate, 401-Annular slot, 402-Annular block, 5-Annular threaded groove, 6-Threaded sleeve, 7-Magnetic plate, 8-Collection trough. Detailed Implementation
[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0018] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-4 A pesticide spraying leak-proof filter nozzle includes a spray rod 1 connected to a filter nozzle 2, and two sets of opposing semi-circular retaining frames 3. A sealing plate 4 is fixedly sleeved on the outer side of both the spray rod 1 and the filter nozzle 2 near one end. An annular threaded groove 5 is provided at the upper end of the spray rod 1, and a threaded sleeve 6 is fixedly connected to the bottom of the filter nozzle 2. The threaded sleeve 6 is threaded into the annular threaded groove 5 at the upper end of the spray rod 1. The two sets of semi-circular retaining frames 3 are matched and locked onto the outer side of the adjacent sealing plates 4. When using this device, the operator threaded the bottom threaded sleeve 6 of the filter nozzle 2 into the annular threaded groove 5 at the upper end of the spray rod 1 until the spray rod 1 and the outer sealing plate 4 of the filter nozzle 2 abut against each other to achieve a seal. Then, a semi-circular clip 3 that fits into the outer side of the sealing plate 4 is inserted to achieve a secondary seal to prevent leakage, thus improving the overall leak prevention effect. Even if there is a minor leak, it can be temporarily sealed by the semi-circular clip 3. After the pesticide is sprayed once, when changing the pesticide, the operator can check at any time whether there is pesticide residue in the semi-circular clip 3, and thus determine whether there is a leak.
[0022] The spray bar 1 has an annular slot 401 at its upper end on the outer sealing plate 4, and an annular locking block 402, made of rubber, is attached to the bottom of the outer sealing plate 4 of the filter nozzle 2. The annular locking block 402 is fitted with a sealing gasket on the inner wall of the annular slot 401. When the threaded sleeve 6 is threaded into the annular threaded groove 5, the two sets of sealing plates 4 interlock to achieve a secondary seal. Simultaneously, the rubber annular locking block 402 and the annular slot 401 further enhance the sealing at the connection point, preventing leakage.
[0023] The semi-circular frame 3 is made of transparent acrylic. The mating surfaces of adjacent semi-circular frames 3 are equipped with magnetic suction plates 7 that attract each other magnetically. The inner wall of the semi-circular frame 3 is provided with a collection groove 8 that fits between the gaps of adjacent sealing plates 4. When the two sets of semi-circular frames 3 are attached to the outside of the sealing plate 4 at the connection position between the spray rod 1 and the filter nozzle 2, even if a leak occurs, the leaked liquid will not splash onto the user, but will be blocked by the two sets of semi-circular frames 3. At this time, the transparent acrylic semi-circular frames 3 make it easy for the user to see whether there is any leakage at the connection point, and the leaked liquid can be temporarily collected in the collection groove 8, providing a certain temporary collection space without expanding the semi-circular frames 3. At the same time, even small leaks can be detected in time. In addition, the semi-circular frames 3 are magnetically connected by magnetic suction plates 7, which is very convenient, easy to disassemble and assemble, and also convenient for cleaning the inside.
[0024] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
Claims
1. A pesticide spraying leak-proof filter nozzle, comprising a spraying rod (1) connected to a filter nozzle (2), and further comprising two sets of opposing semi-circular retaining frames (3), characterized in that, The spray bar (1) and the filter nozzle (2) are both fixedly fitted with sealing plates (4) on the outer side near one end. The upper end of the spray bar (1) is provided with an annular threaded groove (5), while the bottom of the filter nozzle (2) is fixedly connected with a threaded sleeve (6). The threaded sleeve (6) is threaded into the annular threaded groove (5) at the upper end of the spray bar (1). The two sets of semi-circular clip frames (3) are matched and clipped onto the outer side of the adjacent sealing plates (4).
2. The pesticide spraying leak-proof filter nozzle according to claim 1, characterized in that, The upper end of the outer sealing plate (4) of the spray bar (1) is provided with an annular slot (401), and the bottom of the outer sealing plate (4) of the filter nozzle (2) is provided with an annular locking block (402) that is engaged with the annular slot (401).
3. The pesticide spraying leak-proof filter nozzle according to claim 2, characterized in that, The annular card block (402) is made of rubber, and the inner wall of the annular slot (401) is provided with a sealing gasket.
4. The pesticide spraying leak-proof filter nozzle according to claim 3, characterized in that, The semi-circular card frame (3) is made of transparent acrylic material.
5. A pesticide spraying leak-proof filter nozzle according to claim 4, characterized in that, The mating surfaces of adjacent semicircular card frames (3) are provided with magnetic attracting pieces (7) that magnetically attract each other.
6. A pesticide spraying leak-proof filter nozzle according to claim 5, characterized in that, The inner wall of the semi-circular card frame (3) is provided with a collection groove (8) that fits between the gaps of adjacent sealing plates (4).