Self-cleaning anti-blocking and drip-proof spray head

Abstract

Self-cleaning anti-blocking and anti-dripping nozzle, a side skirt ring is fixedly installed on the mounting body, the side skirt ring is located at the end towards the inlet, and is located above each connecting through hole, each connecting through hole is located in the vertical space of the side skirt ring inner wall forming area; a sliding piece is slidably installed in the side skirt ring, the sliding piece is elastically connected with the side skirt ring through a spring; a number of cleaning rods equal to the number of through holes are fixedly installed on the sliding piece, each cleaning rod is coaxial with the corresponding through hole, and the end towards the through hole has a diameter smaller than the diameter of the through hole; through the setting of the sliding piece and the cleaning rod, when the nozzle stops spraying medium outward, the cleaning rod is automatically inserted into the through hole from the inside of the output end shell under the driving of the spring, thereby ejecting the impurities or residual medium attached to the inside of the through hole; in addition, when the nozzle stops spraying medium outward, the sliding piece is driven by the spring to block the connecting through hole, thereby avoiding the occurrence of dripping phenomenon.

Description

Technical Field

[0001] This invention relates to the field of industrial nozzle technology, and in particular to a self-cleaning, anti-clogging, and anti-drip nozzle. Background Technology

[0002] Industrial nozzles are widely used in many fields such as environmental protection, chemical industry, metallurgy, and mining. They serve different functions depending on the application scenario, such as dust suppression, cleaning, humidification, and cooling. However, due to water quality or media composition, nozzles are prone to clogging during use. Furthermore, when pipeline valves are closed, a small amount of media remains inside the pipeline and nozzle, which can cause leakage.

[0003] Currently, most existing sprinkler heads with anti-clogging and anti-drip functions are operated manually or by pneumatic or electric means. Manual operation is time-consuming and labor-intensive, and may also pose a threat to personal safety in harsh working conditions. Pneumatic or electric operation requires additional electrical control systems and power sources, which increases installation and usage costs and is prone to failure.

[0004] To address this, the present invention proposes a self-cleaning, anti-clogging, and anti-drip nozzle that can prevent clogging and dripping without the need for an additional electrical control system and power source, or manual operation, thereby reducing installation and usage costs and minimizing manual workload. Summary of the Invention

[0005] The technical solution used in this invention is as follows: a self-cleaning, anti-clogging, and anti-drip nozzle, comprising: a nozzle housing and a support body; the nozzle housing has at least one through hole and an inlet;

[0006] The support includes: a mounting body; the mounting body is located between the through hole and the inlet, and is sealed and fixedly installed inside the nozzle housing, dividing the inside of the nozzle housing into two spaces; the mounting body has at least one connecting through hole, and the two spaces inside the nozzle housing are connected only through each of the connecting through holes; a side skirt ring is fixedly installed on the mounting body, the side skirt ring is located at the end facing the inlet, and is located above each of the connecting through holes, and each of the connecting through holes is located in the vertical space of the area formed by the inner wall of the side skirt ring;

[0007] A top cover is fixedly and sealed on the end face of the side skirt ring facing the inlet. A sliding member is slidably installed inside the side skirt ring, and the sliding member is elastically connected to the side skirt ring by a spring. There is a certain distance between the outer side of the side skirt ring and the inner wall of the nozzle housing.

[0008] The sliding member is fixedly mounted with cleaning rods equal in number to the number of through holes. Each cleaning rod is coaxial with the corresponding through hole, and the diameter of the end facing the through hole is smaller than the diameter of the through hole.

[0009] Furthermore, the sliding member is slidably mounted on the top cover and is elastically connected to the top cover by a spring.

[0010] Furthermore, the sliding member is in clearance fit with the side skirt ring; at least one discharge through hole is provided in the area on the sliding member that corresponds vertically to each of the connecting through holes.

[0011] Furthermore, the end of the cleaning rod facing the through hole is frustoconical, and its diameter gradually decreases, with the minimum diameter being smaller than the diameter of the through hole.

[0012] Furthermore, the nozzle housing includes an output end housing and an input end housing; the output end housing and the input end housing are respectively fixedly and sealed at both ends of the mounting body; each of the through holes is formed on the output end housing, and the inlet is formed on the input end housing.

[0013] Furthermore, the mounting body has at least one inflow cavity, the upper end face of the inflow cavity is not higher than the upper end face of the connecting through hole; the side wall of the inflow cavity has at least one inflow through hole penetrating the side wall of the inflow cavity.

[0014] Because the present invention adopts the above-described technical solution, the beneficial effects of the present invention are as follows:

[0015] This invention, through the arrangement of a sliding member and a cleaning rod, allows the cleaning rod to automatically insert from inside the output end housing into the through hole under the drive of a spring when the nozzle stops spraying media. This pushes out impurities or residual media adhering to the through hole, preventing excessive accumulation of impurities or residual media that could clog the through hole. Furthermore, when the nozzle stops spraying media, the sliding member, driven by the spring, seals the connecting through hole, preventing residual media inside the pipe from flowing out through the connecting through hole and avoiding leakage.

[0016] This invention, through the arrangement of sliding parts and springs, ensures that the conveying pipe remains full of fluid medium after the valve or conveying pump is closed, thus mitigating the water hammer effect caused by the sudden opening of the conveying pump unit (valve) due to the presence of a large amount of air in the conveying pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the specific structure of the support body of the present invention.

[0020] Figure 4 This is a cross-sectional schematic diagram showing the positional relationship between the support and the sliding element of the present invention.

[0021] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0022] Figure 6 This is an exploded view of the connection relationship between the support, sliding member and top rod of the present invention.

[0023] Reference numerals: Nozzle housing-1; Support body-2; Cleaning rod-3; Sliding part-4; Spring-5; Top cover-6; Through hole-7; Inlet-8; Output end housing-11; Input end housing-12; Mounting body-21; Connecting through hole-22; Side skirt ring-23; Inflow cavity-24. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Examples, such as Figure 1-6 As shown, a self-cleaning, anti-clogging, and anti-drip nozzle includes: a nozzle housing 1 and a support body 2; the nozzle housing 1 has a through hole 7 and an inlet 8; the through hole 7 is located at the front end (output end) of the nozzle housing 1, and the inlet 8 is located at the rear end (input end) of the nozzle housing 1; the nozzle housing 1 is connected to the delivery pump unit through the inlet 8 connecting pipe.

[0026] The support body 2 includes: a mounting body 21; the mounting body 21 is located between the through hole 7 and the inlet 8, and is sealed and fixedly installed inside the nozzle housing 1, dividing the inside of the nozzle housing 1 into two spaces; a connecting through hole 22 is provided on the mounting body 21, and the two spaces inside the nozzle housing 1 are connected only through the connecting through hole 22; a side skirt ring 23 is fixedly installed on the mounting body 21, the side skirt ring 23 is located at the end facing the inlet 8 and above the connecting through hole 22, and the connecting through hole 22 is located in the vertical space of the area formed by the inner wall of the side skirt ring 23;

[0027] A top cover 6 is fixedly and sealed on the end face of the side skirt ring 23 facing the inlet 8. A sliding member 4 is slidably installed inside the side skirt ring 23. The sliding member 4 is elastically connected to the side skirt ring 23 by a spring 5. There is a certain distance between the outer side of the side skirt ring 23 and the inner wall of the nozzle housing 1. The medium enters the space between the sliding member 4 and the mounting body 21 through the channel formed between the side skirt ring 23 and the nozzle housing 1. The spring 5 is a compression spring. Under the action of the spring 5, the sliding member 4 completely blocks the upper end of the connecting through hole 22 and fits tightly with the upper surface of the connecting through hole 22, so that the two spaces inside the nozzle housing 1 divided by the mounting body 21 are not connected to each other.

[0028] A number of cleaning rods 3, equal in number to the number of through holes 7, are fixedly installed on the sliding member 4. Each cleaning rod 3 is coaxial with the corresponding through hole 7, and the diameter of the end facing the through hole 7 is smaller than the diameter of the through hole 7. In use, the medium is supplied to the nozzle housing 1 through the inlet 8. Since the end face of the side skirt ring 23 facing the inlet 8 is sealed by the top cover 6, under the supply of the delivery pump unit, the pressure of the medium in the pipeline overcomes the elastic force of the spring 5, causing the sliding member 4 to move towards the top cover 6. The sliding member 4 no longer blocks the connecting through hole 22, and the medium passes through the connecting through hole 22 and is sprayed out from the through hole 7. When the pump unit is shut down, the pressure of the medium in the pipeline gradually decreases, and the spring 5 gradually rebounds, causing the sliding part 4 to cover and adhere to the upper surface of the connecting through hole 22 again, thus resealing the connecting through hole 22. During the rebound of the spring 5, the cleaning rod 3 extends into the through hole 7 to push out the impurities or residual medium attached to the through hole 7, preventing excessive impurities or medium residue from causing blockage of the through hole 7. Furthermore, the sliding part 4's function of covering the connecting through hole 22 ensures that the medium is sealed in the pipeline, preventing air from entering the pipeline and thus reducing the water hammer effect during the next use.

[0029] Specifically, the top of the slider 4 is slidably mounted on the top cover 6 and is elastically connected to the top cover 6 by the spring 5.

[0030] Specifically, to improve the service life of this technical solution, the sliding member 4 and the side skirt ring 23 are fitted with a clearance. Under the pressure of the medium, the sliding member 4 is pushed upward, and the medium can be ejected from the through hole 7 through the connecting through hole 22. Since there is a gap between the sliding member 4 and the side skirt ring 23, some medium will enter between the sliding member 4 and the top cover 6 from the gap. In order to avoid the medium between the sliding member 4 and the top cover 6 remaining there, two discharge through holes are opened in the area on the sliding member 4 that is vertically corresponding to the connecting through hole 22. The medium between the sliding member 4 and the top cover 6 flows out through the two discharge through holes.

[0031] Specifically, the end of the cleaning rod 3 facing the through hole 7 is frustoconical, and its diameter gradually decreases, with the minimum diameter being smaller than the diameter of the through hole 7.

[0032] The nozzle housing 1 includes an output housing 11 and an input housing 12; the output housing 11 and the input housing 12 are respectively fixed and sealed at both ends of the mounting body 21; each through hole 7 is opened on the output housing 11, and the inlet 8 is opened on the input housing 12.

[0033] Specifically, the mounting body 21 has two inflow cavities 24. The upper end face of the inflow cavity 24 is not higher than the upper end face of the connecting through hole 22. To clearly illustrate this technical solution, in this embodiment, the upper end face of the inflow cavity 24 and the upper end face of the connecting through hole 22 are located in the same plane. The side wall of the inflow cavity 24 has multiple inflow through holes that penetrate the side wall of the inflow cavity 24. The medium flows into the space formed by the input end housing 12 and the mounting body 21 from the inlet 8 on the input end housing 12, and then enters the inflow cavity 24 through the inflow through holes on the side wall of the inflow cavity 24, lifting the sliding member 4, and then being ejected from the through hole 7 through the connecting through hole 22.

[0034] To clearly illustrate this technical solution, water is used as an example in this embodiment. During use, water is pumped from inlet 8 into the space formed by the input end housing 12 and the mounting body 21 by a delivery pump unit. The water flows into the inflow cavity 24. Under the action of water pressure, the sliding member 4 overcomes the resistance of the spring 5 and moves towards the top cover 6, so that the sliding member 4 no longer blocks the connecting through hole 22. The water flows into the space formed by the output end housing 11 and the mounting body 21 through the connecting through hole 22 and is sprayed out through the through hole 7 on the output end housing 11. When the water flows and the sliding member 4 moves towards the top cover 6, since the sliding member 4 and the side skirt ring 23 are in clearance fit, some water will enter the space between the sliding member 4 and the top cover 6. Therefore, two discharge through holes are opened in the area of ​​the sliding member 4 facing the connecting through hole 22, so that the water in the space formed by the sliding member 4 and the top cover 6 can flow out from the discharge through holes under the action of the water flow.

[0035] When the nozzle is not in use, after the valve or delivery pump unit is closed, the water pressure gradually decreases. At this time, under the elastic force of spring 5, the sliding part 4 seals the connecting through hole 22 again, and the cleaning rod 3 moves towards the through hole 7. The end of the cleaning rod 3 is inserted into the through hole 7, pushing out the impurities attached to the through hole 7, preventing the through hole 7 from being blocked due to excessive accumulation of impurities. Furthermore, the sealing of the connecting through hole 22 by the sliding part 4 and the sealing of the through hole 7 by the cleaning rod 3 prevents leakage. After the sliding part 4 seals the connecting through hole 22, the pipeline between the output end housing 12 and the delivery pump unit or valve is filled with water, thereby avoiding the presence of a large amount of air in the pipeline during the next use, which would lead to a large water hammer effect and damage to the pipeline, thus reducing the water hammer effect.

Claims

1. A self-cleaning, anti-clogging, and anti-drip nozzle, characterized in that, include: Nozzle housing (1), support body (2); the nozzle housing (1) is provided with at least one through hole (7) and an inlet (8); The support body (2) includes: a mounting body (21); the mounting body (21) is located between the through hole (7) and the inlet (8), and is sealed and fixedly installed inside the nozzle housing (1), dividing the inside of the nozzle housing (1) into two spaces; at least one connecting through hole (22) is provided on the mounting body (21), and the two spaces inside the nozzle housing (1) are connected only through each of the connecting through holes (22); a side skirt ring (23) is fixedly installed on the mounting body (21), the side skirt ring (23) is located at the end facing the inlet (8), and is located above each of the connecting through holes (22), and each of the connecting through holes (22) is located in the vertical space of the area formed by the inner wall of the side skirt ring (23); The side skirt ring (23) is fixed and sealed with a top cover (6) on the end face facing the inlet (8). A sliding member (4) is slidably installed inside the side skirt ring (23). The sliding member (4) is elastically connected to the side skirt ring (23) by a spring (5). There is a certain distance between the outer side of the side skirt ring (23) and the inner wall of the nozzle shell (1). The sliding member (4) is fixedly installed with a number of cleaning rods (3) equal to the number of through holes (7). Each cleaning rod (3) is coaxial with the corresponding through hole (7), and the diameter of the end facing the through hole (7) is smaller than the diameter of the through hole (7).

2. The self-cleaning, anti-clogging, and anti-drip nozzle according to claim 1, characterized in that, The sliding member (4) is slidably mounted on the top cover (6) and is elastically connected to the top cover (6) by a spring (5).

3. The self-cleaning, anti-clogging, and anti-drip nozzle according to claim 2, characterized in that, The sliding member (4) is clearance-fitted with the side skirt ring (23); at least one discharge through hole is provided in the area of ​​the sliding member (4) that is vertically corresponding to each of the connecting through holes (22).

4. The self-cleaning, anti-clogging, and anti-drip nozzle according to claim 1, characterized in that, The end of the cleaning rod (3) facing the through hole (7) is frustoconical and its diameter gradually decreases, with the minimum diameter being smaller than the diameter of the through hole (7).

5. The self-cleaning, anti-clogging, and anti-drip nozzle according to claim 1, characterized in that, The nozzle housing (1) includes an output housing (11) and an input housing (12); the output housing (11) and the input housing (12) are respectively fixed and sealed at both ends of the mounting body (21); each of the through holes (7) is opened on the output housing (11), and the inlet (8) is opened on the input housing (12).

6. The self-cleaning, anti-clogging, and anti-drip nozzle according to claim 5, characterized in that, At least one inflow cavity (24) is provided on the mounting body (21), and the upper end face of the inflow cavity (24) is not higher than the upper end face of the connecting through hole (22); at least one inflow through hole is provided on the side wall of the inflow cavity (24) through the side wall of the inflow cavity (24).

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