High-pressure gas saving nozzle

Abstract

The utility model discloses a high-pressure throttle nozzle, which relates to the field of high-pressure nozzles and comprises a nozzle main body and a noise reduction pipe detachably mounted on the nozzle main body, a bolt is fixed on the nozzle main body, a screw hole is arranged on the inner wall of the nozzle main body, and a pressurizing throttle nozzle is detachably fixed on the nozzle main body through the screw hole. Wherein a clamping mechanism is arranged between the nozzle main body and the noise reduction pipe, and a pressurization air-saving cavity of a conical structure is formed in the center of the pressurization air-saving nozzle. The space of the air outlet cavity is reduced through the pressurizing air-saving cavity with the inner wall of the pressurizing air-saving nozzle being of the conical structure, so that the air pressure and lift of air are improved, air consumption under the same air pressure is reduced, noise can be fully reflected and absorbed through the sound-absorbing holes in the noise-reducing pipe, the noise-reducing effect on the nozzle body is improved, and the noise-reducing effect of the nozzle body is improved. And meanwhile, an elastic plate in a telescopic groove pushes a positioning ball to be clamped in a positioning hole, so that the noise reduction pipe is kept fixed, and the convenience of mounting and dismounting the noise reduction pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure nozzles, specifically a high-pressure throttling nozzle. Background Technology

[0002] In existing technologies, industrial enterprises have a large number of compressed air purging production lines in their production workshops, which are used to blow away dust and water stains from the surface of parts, dry and cool them, and tidy up parts. Therefore, purging tools are needed to thoroughly clean them. The most common purging tool is the traditional spray gun. When compressed air diffuses out of the traditional spray gun, it will generate instantaneous noise at a high sound pressure level. Therefore, it is necessary to effectively reduce the noise generated when compressed air is ejected.

[0003] Patent application number 202223572453.0 discloses a noise-reducing, fuel-saving nozzle, comprising a stainless steel body with a threaded interface welded to the bottom. A central circular hole extends through the stainless steel body and the threaded interface. A groove is integrally formed on the top conical surface of the stainless steel body, with multiple grooves having the same included angle. A noise-reducing groove plate is integrally formed on the top conical surface of the stainless steel body. This invention forms a groove between the noise-reducing groove plate and the top conical surface of the stainless steel body. The groove is designed based on aerodynamic noise reduction principles, similar to a small-hole injection muffler. Multiple small openings are formed on the sidewall of the central circular hole, and these openings are connected to the groove. Gas blown from the central circular hole exits through these small openings on the sidewalls, changing the impedance cross-section and causing some sound waves to return to the sound source.

[0004] The above technical solution uses noise reduction grooves and grooves to reduce some of the noise generated by the high-pressure nozzle. However, since the noise propagates in an open manner, the noise reduction grooves can only reflect a small portion of the noise and cannot absorb the noise generated by the high-pressure nozzle, resulting in poor noise reduction effect on the high-pressure nozzle. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a high-pressure throttle nozzle to solve the technical problem that the noise reduction groove plate can only reflect a small part of the noise and cannot absorb the noise generated by the high-pressure nozzle due to the open propagation of noise, resulting in poor noise reduction effect of the high-pressure nozzle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure throttle nozzle, comprising a nozzle body and a noise reduction tube detachably mounted on the nozzle body. The nozzle body is fixed with bolts, and the inner wall of the nozzle body is provided with screw holes, through which a booster throttle nozzle is detachably fixed. A snap-fit ​​mechanism is provided between the nozzle body and the noise reduction tube, and a booster throttle chamber with a conical structure is provided at the center of the booster throttle nozzle.

[0007] The present invention is further configured such that a mounting part is fixed on the nozzle body, and multiple positioning holes are formed in a ring array on the outer wall of the nozzle body.

[0008] The present invention is further configured such that an expansion groove is provided on the inner wall of one end of the noise reduction tube, and a plurality of sound-absorbing holes are provided on the outer wall of the other end of the noise reduction tube.

[0009] The present invention is further configured such that the snap-fit ​​mechanism includes an elastic plate and a positioning ball embedded in the telescopic groove, and the two ends of the elastic plate are respectively fixedly connected to the positioning ball and the inner wall of the telescopic groove.

[0010] The present invention is further configured such that one end of the positioning ball is engaged with the inner wall of the telescopic groove, and the other end of the positioning ball is engaged in the positioning hole.

[0011] The present invention is further configured such that an air outlet chamber communicating with the booster throttle chamber is provided at the center of the nozzle body, and a screw hole is provided on the side wall of the nozzle body.

[0012] The present invention is further configured such that one end of the booster throttle valve is provided with an air outlet, and the other end of the booster throttle valve is fixed with a threaded tube.

[0013] The present invention is further configured such that a rubber sealing ring is embedded in the screw hole, the threaded pipe is threaded into the screw hole, and the threaded pipe is tightly connected to the side wall of the rubber sealing ring.

[0014] In summary, this utility model has the following beneficial effects: By providing a screw hole on the nozzle body, the threaded part of the booster throttle nozzle is inserted into the screw hole and tightly connected to the rubber sealing ring. The conical structure of the booster throttle nozzle's inner wall reduces the space of the outlet chamber, thereby increasing the gas pressure and head, thus reducing gas consumption at the same pressure. Replacing different models of booster throttle nozzles can meet different outlet gas pressure requirements. Furthermore, by sleeved a noise-reducing tube on the nozzle body, the sound-absorbing holes on the tube can fully reflect and absorb noise, improving the noise reduction effect on the nozzle body. Simultaneously, the elastic plate in the telescopic groove pushes the positioning ball to engage in the positioning hole, keeping the noise-reducing tube fixed. When disassembling the noise-reducing tube, forcefully pulling it out causes the arc-shaped surface of the positioning ball to abut against the positioning hole and retract into the telescopic groove, improving the convenience of installing and disassembling the noise-reducing tube. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Nozzle body; 2. Noise reduction tube; 3. Boost throttle nozzle; 4. Mounting part; 5. Boost throttle chamber; 6. Screw hole; 7. Rubber sealing ring; 8. Air outlet chamber; 9. Bolt; 10. Positioning hole; 11. Air outlet nozzle; 12. Expansion groove; 13. Positioning ball; 14. Elastic plate; 15. Threaded tube; 16. Sound absorption hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] A high-pressure throttle nozzle, such as Figure 1-4 As shown, it includes a nozzle body 1 and a noise reduction tube 2 that can be detachably installed on the nozzle body 1. A bolt 9 is fixed on the nozzle body 1, and a screw hole 6 is opened on the inner wall of the nozzle body 1. A booster throttle nozzle 3 is detachably fixed through the screw hole 6. A snap-fit ​​mechanism is provided between the nozzle body 1 and the noise reduction tube 2. A booster throttle chamber 5 with a conical structure is provided at the center of the booster throttle nozzle 3.

[0022] An air outlet chamber 8, which is connected to the booster throttle chamber 5, is provided at the center of the nozzle body 1. A screw hole 6 is provided on the side wall of the nozzle body 1. An air outlet 11 is provided at one end of the booster throttle nozzle 3, and a threaded tube 15 is fixed at the other end of the booster throttle nozzle 3. A rubber sealing ring 7 is embedded in the screw hole 6. The threaded tube 15 is threaded into the screw hole 6 and is tightly connected to the side wall of the rubber sealing ring 7. The threaded part on the booster throttle nozzle 3 is inserted into the screw hole 6 and tightly connected to the rubber sealing ring 7. The booster throttle chamber 5, which has a conical structure on the inner wall of the booster throttle nozzle 3, reduces the space of the air outlet chamber 8, thereby increasing the gas pressure and head, and thus reducing the gas consumption under the same gas pressure. Replacing different models of booster throttle nozzles can meet different air outlet pressure requirements.

[0023] Furthermore, the nozzle body 1 is fixed with an installation part 4, and the outer wall of the nozzle body 1 is provided with a plurality of positioning holes 10 in a ring array. One end of the noise reduction tube 2 is provided with a telescopic groove 12, and the other end of the noise reduction tube 2 is provided with a plurality of sound-absorbing holes 16. The snap-fit ​​mechanism includes an elastic plate 14 and a positioning ball 13 embedded in the telescopic groove 12. The two ends of the elastic plate 14 are fixedly connected to the positioning ball 13 and the inner wall of the telescopic groove 12, respectively. One end of the positioning ball 13 is snapped into the inner wall of the telescopic groove 12, and the other end of the positioning ball 13 is snapped into the positioning hole 10. The sound-absorbing holes 16 on the noise reduction tube 2 can fully reflect and absorb noise, thereby improving the noise reduction effect on the nozzle body 1. At the same time, the elastic plate 14 in the telescopic groove 12 pushes the positioning ball 13 to snap into the positioning hole 10, so that the noise reduction tube 2 is kept fixed. When the noise reduction tube 2 is disassembled, it is pulled out by force, and the arc-shaped surface of the positioning ball 13 abuts against the positioning hole 10 and then retracts into the telescopic groove 12.

[0024] The working principle of this utility model is as follows: During use, the threaded part of the booster throttle nozzle 3 is inserted into the screw hole 6 and tightly connected to the rubber sealing ring 7. The booster throttle chamber 5 with a conical structure on the inner wall of the booster throttle nozzle 3 reduces the space of the outlet chamber 8, thereby increasing the gas pressure and head, and thus reducing the gas consumption under the same gas pressure. Replacing different models of booster throttle nozzles can meet different outlet gas pressure requirements. The sound-absorbing hole 16 on the noise reduction tube 2 can fully reflect and absorb noise, improving the noise reduction effect on the nozzle body 1. At the same time, the elastic plate 14 in the telescopic groove 12 pushes the positioning ball 13 to engage in the positioning hole 10 to keep the noise reduction tube 2 fixed. When the noise reduction tube 2 is disassembled, it is pulled out forcefully, and the arc-shaped surface of the positioning ball 13 abuts against the positioning hole 10 and then retracts into the telescopic groove 12, improving the convenience of installing and disassembling the noise reduction tube 2.

[0025] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-pressure air jet nozzle comprising a nozzle body (1) and a noise reduction tube (2) detachably mounted on the nozzle body (1), characterized in that: The bolt (9) is fixed on the nozzle body (1), the inner wall of the nozzle body (1) is provided with a threaded hole (6), and the supercharged air throttle (3) is detachably fixed through the threaded hole (6), wherein the clamping mechanism is arranged between the nozzle body (1) and the noise reduction pipe (2), and the supercharged air throttle (3) is provided with a tapered supercharged air cavity (5) at the center position.

2. A high pressure air jet nozzle according to claim 1, characterized in that: The mounting portion (4) is fixed on the nozzle body (1), and the outer wall of the nozzle body (1) is provided with a plurality of positioning holes (10) in an annular array.

3. A high pressure air jet nozzle according to claim 2, wherein: The inner wall of one end of the noise reduction pipe (2) is provided with an expansion slot (12), and the outer wall of the other end of the noise reduction pipe (2) is provided with a plurality of sound absorbing holes (16).

4. A high pressure air bleed nozzle according to claim 3, wherein: The clamping mechanism comprises a resilient plate (14) and a positioning ball (13) which are arranged in the expansion slot (12), and the both ends of the resilient plate (14) are fixedly connected with the positioning ball (13) and the inner wall of the expansion slot (12) respectively.

5. A high pressure air bleed nozzle according to claim 4, wherein: One end of the positioning ball (13) is clamped with the inner wall of the expansion slot (12), and the other end of the positioning ball (13) is clamped in the positioning hole (10).

6. A high pressure air bleed nozzle as defined in claim 1, wherein: The nozzle body (1) is provided with an air outlet cavity (8) which is communicated with the supercharged air cavity (5) at the center position, and the sidewall of the nozzle body (1) is provided with a threaded hole (6).

7. A high pressure air jet nozzle according to claim 6, characterized in that: One end of the supercharged air throttle (3) is provided with an air outlet nozzle (11), and the other end of the supercharged air throttle (3) is fixedly provided with a threaded pipe (15).

8. A high pressure air jet nozzle according to claim 7, characterized in that: The threaded pipe (15) is threadedly inserted into the threaded hole (6), and the sidewall of the threaded pipe (15) is tightly connected with the rubber sealing ring (7).

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