Air jet and air gun

Abstract

The present application discloses a kind of air nozzle and air gun.The air nozzle includes: butt joint, is formed with the insertion hole of the air end of the air pipe of air gun is inserted;And air part, located in the front of the butt joint and is connected with the butt joint axial.In the air part, the communication hole and the air outlet hole extending along the axis of the insertion hole are formed, the communication hole axially communicates the insertion hole and the air outlet hole and the diameter of the communication hole is less than the air outlet hole, the air inlet hole of the air outlet hole and external atmosphere is formed on the peripheral wall of the air part, the air inlet hole has the entrance on the outer circumferential surface of the air part, the air inlet hole extends from its entrance to the front and is inclined.In the present application, the air nozzle that is sleeved on the air end of the air pipe of air gun can realize the effect of energy saving and efficiency increasing, and the compressed air usage of air gun can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to a jet nozzle and a jet gun including the jet nozzle. Background Technology

[0002] Compressed air purging is used in production for rapid cleaning of equipment and workpieces, ensuring production quality and efficiency, and providing conveying power in certain application scenarios. Several typical applications in the production process include: effectively removing adsorbed substances from the surfaces of equipment such as stamping machines, injection molding machines, electroplating lines, and assembly machines, keeping the equipment surfaces clean, helping to extend the equipment's lifespan and maintain good operating conditions; quickly removing dust or debris from product surfaces, reducing quality problems and avoiding potential threats to equipment and products from dust and debris; and in some production lines, lightweight materials, such as connector housings or semi-assembled parts, can be conveyed through pipes or guide rails. In this case, compressed air purging can provide power to help the materials flow smoothly through the pipes or rails without the need for other electrical equipment, achieving efficient and economical conveying.

[0003] In existing technology, compressed air purging spray guns are simple, small mechanisms that utilize compressed air to achieve the above functions and are widely used in production processes. Typically, a plastic protective sleeve is fitted onto the outlet end of the air jet pipe of the compressed air purging spray gun. This protective sleeve is only intended to prevent accidental injury from the sharp end of the air jet pipe and does not achieve energy-saving or efficiency-enhancing effects. Summary of the Invention

[0004] The purpose of this invention is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0005] According to one aspect of the present invention, a jet nozzle is provided. The jet nozzle includes: a mating portion having a socket for inserting a jet end of a jet gun's jet pipe; and a jet portion located in front of the mating portion and axially connected to the mating portion. A connecting hole and an exhaust hole extending axially along the socket are formed in the jet portion, the connecting hole axially connecting the socket and the exhaust hole, and the diameter of the connecting hole being smaller than that of the exhaust hole. An intake hole communicating with the exhaust hole and the external atmosphere is formed on the peripheral wall of the jet portion, the intake hole having an inlet located on the outer peripheral surface of the jet portion, and the intake hole extending obliquely forward from its inlet.

[0006] According to an exemplary embodiment of the present invention, the angle between the axis of the air intake hole and the axis of the connecting hole is greater than 10 degrees and less than 70 degrees.

[0007] According to another exemplary embodiment of the present invention, the diameter of the air intake hole is smaller than the diameter of the air outlet hole and larger than the diameter of the connecting hole.

[0008] According to another exemplary embodiment of the present invention, the connecting hole has a flared air inlet for engaging with the air inlet of the air pipe of the air gun, the flared air inlet of the connecting hole opening toward the insertion hole.

[0009] According to another exemplary embodiment of the present invention, the horn-shaped air inlet of the connecting hole has a smooth arc-shaped inner surface for unobstructedly guiding the compressed airflow ejected from the air outlet of the jet pipe of the jet gun into the connecting hole.

[0010] According to another exemplary embodiment of the present invention, the diameter of the portion of the connecting hole other than the horn-shaped air inlet is constant and equal to the minimum opening diameter of the horn-shaped air inlet, and the maximum opening diameter of the horn-shaped air inlet of the connecting hole is equal to the diameter of the air inlet of the air jet pipe of the air jet gun.

[0011] According to another exemplary embodiment of the present invention, the minimum opening diameter of the horn-shaped air inlet is not greater than half the diameter of the air outlet, and the maximum opening diameter of the horn-shaped air inlet is smaller than the diameter of the air outlet.

[0012] According to another exemplary embodiment of the invention, the intake port has an outlet communicating with the exhaust port, the outlet of the intake port being adjacent to the exhaust port of the communicating port, such that the compressed airflow ejected from the communicating port and the external atmosphere drawn in from the intake port can mix in the rear end of the exhaust port.

[0013] According to another exemplary embodiment of the present invention, a pair of air intake holes are formed on the peripheral wall of the air jet portion of the jet nozzle, the pair of air intake holes being radially opposite to the air outlet.

[0014] According to another exemplary embodiment of the present invention, a plurality of air intake holes are formed on the peripheral wall of the air jet portion of the air jet nozzle, and the plurality of air intake holes are evenly spaced apart in the circumferential direction of the air outlet hole.

[0015] According to another exemplary embodiment of the present invention, the jet nozzle is a one-piece 3D printed part or a one-piece machined part.

[0016] According to another exemplary embodiment of the present invention, the diameter of the insertion hole of the docking portion is equal to or slightly larger than the diameter of the jet pipe of the jet gun.

[0017] According to another exemplary embodiment of the present invention, an annular positioning surface surrounding the communicating hole is formed in the insertion hole of the docking portion. The annular positioning surface is perpendicular to the axial direction of the insertion hole and is adapted to axially abut against the end face of the jet end of the jet tube of the jet gun for axially positioning the jet tube of the jet gun.

[0018] According to another exemplary embodiment of the present invention, the nozzle further includes: an elastic sealing layer formed on an annular positioning surface within the insertion hole of the mating portion, the elastic sealing layer being adapted to be axially pressed between the end face of the jet end of the jet pipe of the jet gun and the annular positioning surface within the insertion hole of the mating portion to achieve a seal between the jet pipe and the nozzle.

[0019] According to another exemplary embodiment of the present invention, a threaded hole is formed on the peripheral wall of the mating portion, such that the mating portion can be fastened to the jet end of the jet gun's jet pipe by a bolt connected to the threaded hole.

[0020] According to another exemplary embodiment of the present invention, the jet nozzle further includes a bolt threadedly connected to the threaded hole, the bolt being adapted to abut against the jet end of the jet tube of the jet gun inserted into the mating portion, so as to fasten the mating portion to the jet end of the jet tube of the jet gun.

[0021] According to another exemplary embodiment of the present invention, the jet nozzle further includes: a mounting portion formed on the outside of the peripheral wall of the mating portion and having a receiving chamber for mounting and positioning a nut, wherein a through hole is formed on the peripheral wall of the mating portion to allow a bolt to pass through, such that the mating portion can be fastened to the jet end of the jet pipe of the jet gun by a bolt threaded to the nut and passing through the through hole.

[0022] According to another exemplary embodiment of the present invention, an insertion port for inserting the nut is formed on the side of the receiving chamber of the mounting part, and a through hole for passing through the bolt is formed on the top wall of the receiving chamber of the mounting part.

[0023] According to another exemplary embodiment of the invention, the jet nozzle further includes a nut, which is inserted and positioned into the receiving chamber of the mounting portion for threaded connection with the bolt.

[0024] According to another exemplary embodiment of the invention, the nozzle further includes a bolt threadedly connected to the nut and passing through a through hole in the mating portion, the bolt being adapted to abut against the jet end of the jet pipe of the jet gun inserted into the mating portion to fasten the mating portion to the jet end of the jet pipe of the jet gun.

[0025] According to another exemplary embodiment of the present invention, the outer contour of the nut is non-circular, and the receiving chamber of the mounting portion has a non-circular inner contour that matches the outer contour of the nut, such that the nut inserted into the receiving chamber of the mounting portion cannot rotate.

[0026] According to another aspect of the present invention, a jet gun is provided. The jet gun includes: a compressed gas generating device for generating compressed gas; a jet pipe connected to the compressed gas generating device for outputting compressed gas; and the aforementioned jet nozzle, which is fitted and fixed to the jet end of the jet pipe, the jet end of the jet pipe being inserted into the insertion hole of the jet nozzle's mating portion, and the jet port of the jet pipe mating with the communicating hole of the jet nozzle.

[0027] According to an exemplary embodiment of the present invention, the jet hole of the jet gun's jet pipe is aligned with the maximum opening of the horn-shaped air inlet of the jet nozzle's connecting hole, and the diameter of the jet hole of the jet gun's jet pipe is equal to the maximum opening diameter of the horn-shaped air inlet.

[0028] In the foregoing exemplary embodiments of the present invention, the jet nozzle fitted on the jet end of the jet pipe of the jet gun can achieve energy saving and efficiency improvement, and can greatly reduce the amount of compressed air used by the jet gun.

[0029] Other objects and advantages of the invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0030] Figure 1 A perspective view of a jet nozzle according to an exemplary first embodiment of the present invention is shown;

[0031] Figure 2 An axial sectional view of a jet nozzle according to an exemplary first embodiment of the present invention is shown;

[0032] Figure 3 This shows an axial planar sectional view of a jet nozzle according to an exemplary first embodiment of the present invention;

[0033] Figure 4 A schematic diagram showing the connection between the jet pipe and the jet nozzle of a jet gun according to an exemplary first embodiment of the present invention;

[0034] Figure 5 A schematic diagram showing the docking of the jet pipe and jet nozzle of a jet gun according to another exemplary first embodiment of the present invention;

[0035] Figure 6 This shows an axial planar sectional view of a jet nozzle according to an exemplary second embodiment of the present invention, wherein the nut has not yet been inserted into the mounting portion;

[0036] Figure 7 This shows an axial planar sectional view of a jet nozzle according to an exemplary second embodiment of the present invention, wherein a nut has been inserted into the mounting portion;

[0037] Figure 8 A schematic diagram showing the connection between the jet pipe and the jet nozzle of a jet gun according to an exemplary second embodiment of the present invention. Detailed Implementation

[0038] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof.

[0039] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0040] According to a general technical concept of the present invention, a jet nozzle is provided. The jet nozzle includes: a mating portion having a socket for inserting the jet end of a jet gun's jet pipe; and a jet section located in front of the mating portion and axially connected to the mating portion. A connecting hole and an exhaust hole extending axially along the socket are formed in the jet section. The connecting hole axially connects the socket and the exhaust hole, and the diameter of the connecting hole is smaller than that of the exhaust hole. An intake hole communicating with the exhaust hole and the external atmosphere is formed on the peripheral wall of the jet section. The intake hole has an inlet located on the outer peripheral surface of the jet section, and the intake hole extends forward obliquely from its inlet.

[0041] According to another general technical concept of the present invention, a jet gun is provided. The jet gun includes: a compressed gas generating device for generating compressed gas; a jet pipe connected to the compressed gas generating device for outputting compressed gas; and the aforementioned jet nozzle, which is fitted and fixed to the jet end of the jet pipe, the jet end of the jet pipe being inserted into the insertion hole of the mating portion of the jet nozzle, and the jet hole of the jet pipe mating with the communication hole of the jet nozzle.

[0042] First Embodiment

[0043] Figures 1 to 5 A first embodiment according to the present invention is shown. Wherein, Figure 1 A perspective view of a jet nozzle 1 according to an exemplary first embodiment of the present invention is shown; Figure 2 This shows an axial sectional view of a jet nozzle 1 according to an exemplary first embodiment of the present invention; Figure 3This shows an axial planar sectional view of a jet nozzle 1 according to an exemplary first embodiment of the present invention; Figure 4 A schematic diagram showing the docking of the jet pipe 2 and the jet nozzle 1 of a jet gun according to an exemplary first embodiment of the present invention; Figure 5 A schematic diagram showing the docking of the jet pipe 2 and the jet nozzle 1 of a jet gun according to another exemplary first embodiment of the present invention.

[0044] like Figures 1 to 5 As shown, in an exemplary embodiment of the present invention, a jet nozzle 1 is disclosed. The jet nozzle 1 includes a docking portion 11 and a jet portion 12. The docking portion 11 is formed with an insertion hole 13 that allows the jet end 21 of the jet pipe 2 of a jet gun to be inserted, so that the jet nozzle 1 can be fitted onto the jet end 21 of the jet pipe 2 of the jet gun. The jet portion 12 is located in front of the docking portion 11 and is axially connected to the docking portion 11. A connecting hole 15 and an exhaust hole 14 extending axially along the insertion hole 13 are formed in the jet portion 12. The connecting hole 15 axially connects the insertion hole 13 and the exhaust hole 14, and the diameter of the connecting hole 15 is smaller than that of the exhaust hole 14. An intake hole 16 communicating with the exhaust hole 14 and the external atmosphere is formed on the peripheral wall of the jet portion 12. The intake hole 16 has an inlet located on the outer peripheral surface of the jet portion 12, and the intake hole 16 extends forward obliquely from its inlet.

[0045] like Figures 1 to 5 As shown in the illustrated embodiment, the angle α between the axis of the suction port 16 and the axis of the connecting port 15 is greater than 10 degrees and less than 70 degrees. For example, the angle α between the axis of the suction port 16 and the axis of the connecting port 15 can be equal to 10 degrees, 30 degrees, 45 degrees, 60 degrees, 70 degrees or other suitable angles.

[0046] like Figures 1 to 5 As shown in the illustrated embodiment, the diameter of the intake hole 16 is smaller than the diameter of the exhaust hole 14 but larger than the diameter of the connecting hole 15.

[0047] like Figures 1 to 5 As shown, in the illustrated embodiment, the connecting hole 15 has a flared air inlet 150 for docking with the air inlet 20 of the air pipe 2 of the air gun, and the flared air inlet 150 of the connecting hole 15 opens toward the insertion hole 13.

[0048] like Figures 1 to 5 As shown, in the illustrated embodiment, the horn-shaped air inlet 150 of the connecting hole 15 has a smooth arc-shaped inner surface for unobstructed guidance of the compressed airflow ejected from the air outlet 20 of the jet pipe 2 of the jet gun into the connecting hole 15.

[0049] like Figures 1 to 5As shown in the illustrated embodiment, the diameter of the connecting hole 15, except for the horn-shaped air inlet 150, is constant and equal to the minimum opening diameter of the horn-shaped air inlet 150. The maximum opening diameter of the horn-shaped air inlet 150 of the connecting hole 15 is equal to the diameter of the air inlet 20 of the air jet pipe 2 of the air jet gun.

[0050] like Figures 1 to 5 As shown in the illustrated embodiment, the minimum opening diameter of the horn-shaped air inlet 150 is no greater than half the diameter of the air outlet 14, and the maximum opening diameter of the horn-shaped air inlet 150 is smaller than the diameter of the air outlet 14.

[0051] like Figures 1 to 5 As shown, in the illustrated embodiment, the intake port 16 has an outlet communicating with the exhaust port 14. The outlet of the intake port 16 is adjacent to the exhaust port of the connecting hole 15, such that the compressed airflow ejected from the connecting hole 15 and the external air drawn in from the intake port 16 can mix in the rear end of the exhaust port 14.

[0052] like Figures 1 to 5 As shown in the illustrated embodiment, a pair of air intake holes 16 are formed on the peripheral wall of the air intake portion 12 of the air nozzle 1, and the pair of air intake holes 16 are opposite each other in the radial direction of the air outlet 14.

[0053] like Figures 1 to 5 As shown in the illustrated embodiment, a plurality of air intake holes 16 are formed on the peripheral wall of the air intake portion 12 of the air nozzle 1, and the plurality of air intake holes 16 are evenly spaced in the circumferential direction of the air outlet hole 14.

[0054] like Figures 1 to 5 As shown in the illustrated embodiment, the nozzle 1 is a one-piece 3D printed part or a one-piece machined part. The nozzle 1 can be a metal part or a non-metal part.

[0055] like Figures 1 to 5 As shown, in the illustrated embodiment, the diameter of the insertion hole 13 of the docking part 11 is equal to or slightly larger than the diameter of the jet pipe 2 of the jet gun.

[0056] like Figures 1 to 5 As shown in the illustrated embodiment, an annular positioning surface 130 surrounding the connecting hole 15 is formed in the insertion hole 13 of the docking part 11. The annular positioning surface 130 is perpendicular to the axis of the insertion hole 13 and is adapted to axially abut against the end face of the jet end 21 of the jet pipe 2 of the jet gun, for axial positioning of the jet pipe 2 of the jet gun.

[0057] like Figures 1 to 5As shown in the illustrated embodiment, the nozzle 1 further includes an elastic sealing layer 13a, which is formed on an annular positioning surface 130 within the insertion hole 13 of the mating portion 11. The elastic sealing layer 13a is adapted to be axially pressed between the end face of the jet end 21 of the jet pipe 2 of the jet gun and the annular positioning surface 130 within the insertion hole 13 of the mating portion 11 to achieve a seal between the jet pipe 2 and the nozzle 1.

[0058] like Figures 1 to 5 As shown in the illustrated embodiment, a threaded hole 17 is formed on the peripheral wall of the mating part 11, so that the mating part 11 can be fastened to the jet end 21 of the jet pipe 2 of the jet gun by a bolt 18 connected to the threaded hole 17.

[0059] like Figures 1 to 5 As shown, in the illustrated embodiment, the nozzle 1 further includes a bolt 18. The bolt 18 is threaded into a threaded hole 17. The bolt 18 is adapted to abut against the jet end 21 of the jet pipe 2 of the jet gun inserted into the docking part 11 to secure the docking part 11 to the jet end 21 of the jet pipe 2 of the jet gun.

[0060] like Figures 1 to 5 As shown, in another exemplary embodiment of the present invention, a jet gun is also provided. The jet gun includes: a compressed gas generating device (not shown), a jet pipe 2, and a jet nozzle 1. The compressed gas generating device is used to generate compressed gas. The jet pipe 2 is connected to the compressed gas generating device and is used to output compressed gas. The jet nozzle 1 is fitted and fixed to the jet end 21 of the jet pipe 2. The jet end 21 of the jet pipe 2 is inserted into the insertion hole 13 of the mating portion 11 of the jet nozzle 1, and the jet hole 20 of the jet pipe 2 mates with the communicating hole 15 of the jet nozzle 1.

[0061] like Figures 1 to 5 As shown in the illustrated embodiment, the jet nozzle 20 of the jet gun's jet pipe 2 is aligned with the maximum opening of the horn-shaped air inlet 150 of the jet nozzle 1's connecting hole 15, and the diameter of the jet nozzle 2's jet nozzle 2 is equal to the maximum opening diameter of the horn-shaped air inlet 150.

[0062] Second Embodiment

[0063] Figures 6 to 8 A second embodiment according to the present invention is shown. Wherein, Figure 6 This shows an axial planar sectional view of the nozzle 2 according to an exemplary second embodiment of the present invention, wherein the nut 19 has not yet been inserted into the mounting portion 110; Figure 7 This shows an axial planar sectional view of a jet nozzle 2 according to an exemplary second embodiment of the present invention, wherein a nut 19 has been inserted into the mounting portion 110; Figure 8This diagram shows the docking of the jet pipe 2 and the jet nozzle 1 of a jet gun according to an exemplary second embodiment of the present invention.

[0064] like Figures 6 to 8 As shown, in an exemplary embodiment of the present invention, a jet nozzle 1 is disclosed. The jet nozzle 1 includes a docking portion 11 and a jet portion 12. The docking portion 11 is formed with an insertion hole 13 that allows the jet end 21 of the jet pipe 2 of a jet gun to be inserted, so that the jet nozzle 1 can be fitted onto the jet end 21 of the jet pipe 2 of the jet gun. The jet portion 12 is located in front of the docking portion 11 and is axially connected to the docking portion 11. A connecting hole 15 and an exhaust hole 14 extending axially along the insertion hole 13 are formed in the jet portion 12. The connecting hole 15 axially connects the insertion hole 13 and the exhaust hole 14, and the diameter of the connecting hole 15 is smaller than that of the exhaust hole 14. An intake hole 16 communicating with the exhaust hole 14 and the external atmosphere is formed on the peripheral wall of the jet portion 12. The intake hole 16 has an inlet located on the outer peripheral surface of the jet portion 12, and the intake hole 16 extends forward obliquely from its inlet.

[0065] like Figures 6 to 8 As shown in the illustrated embodiment, the angle α between the axis of the suction port 16 and the axis of the connecting port 15 is greater than 10 degrees and less than 70 degrees. For example, the angle α between the axis of the suction port 16 and the axis of the connecting port 15 can be equal to 10 degrees, 30 degrees, 45 degrees, 60 degrees, 70 degrees or other suitable angles.

[0066] like Figures 6 to 8 As shown in the illustrated embodiment, the diameter of the intake hole 16 is smaller than the diameter of the exhaust hole 14 but larger than the diameter of the connecting hole 15.

[0067] like Figures 6 to 8 As shown, in the illustrated embodiment, the connecting hole 15 has a flared air inlet 150 for docking with the air inlet 20 of the air pipe 2 of the air gun, and the flared air inlet 150 of the connecting hole 15 opens toward the insertion hole 13.

[0068] like Figures 6 to 8 As shown, in the illustrated embodiment, the horn-shaped air inlet 150 of the connecting hole 15 has a smooth arc-shaped inner surface for unobstructed guidance of the compressed airflow ejected from the air outlet 20 of the jet pipe 2 of the jet gun into the connecting hole 15.

[0069] like Figures 6 to 8 As shown in the illustrated embodiment, the diameter of the connecting hole 15, except for the horn-shaped air inlet 150, is constant and equal to the minimum opening diameter of the horn-shaped air inlet 150. The maximum opening diameter of the horn-shaped air inlet 150 of the connecting hole 15 is equal to the diameter of the air inlet 20 of the air jet pipe 2 of the air jet gun.

[0070] like Figures 6 to 8As shown in the illustrated embodiment, the minimum opening diameter of the horn-shaped air inlet 150 is no greater than half the diameter of the air outlet 14, and the maximum opening diameter of the horn-shaped air inlet 150 is smaller than the diameter of the air outlet 14.

[0071] like Figures 6 to 8 As shown, in the illustrated embodiment, the intake port 16 has an outlet communicating with the exhaust port 14. The outlet of the intake port 16 is adjacent to the exhaust port of the connecting hole 15, such that the compressed airflow ejected from the connecting hole 15 and the external air drawn in from the intake port 16 can mix in the rear end of the exhaust port 14.

[0072] like Figures 6 to 8 As shown in the illustrated embodiment, a pair of air intake holes 16 are formed on the peripheral wall of the air intake portion 12 of the air nozzle 1, and the pair of air intake holes 16 are opposite each other in the radial direction of the air outlet 14.

[0073] like Figures 6 to 8 As shown in the illustrated embodiment, a plurality of air intake holes 16 are formed on the peripheral wall of the air intake portion 12 of the air nozzle 1, and the plurality of air intake holes 16 are evenly spaced in the circumferential direction of the air outlet hole 14.

[0074] like Figures 6 to 8 As shown in the illustrated embodiment, the nozzle 1 is a one-piece 3D printed part or a one-piece machined part. The nozzle 1 can be a metal part or a non-metal part.

[0075] like Figures 6 to 8 As shown, in the illustrated embodiment, the diameter of the insertion hole 13 of the docking part 11 is equal to or slightly larger than the diameter of the jet pipe 2 of the jet gun.

[0076] like Figures 6 to 8 As shown in the illustrated embodiment, an annular positioning surface 130 surrounding the connecting hole 15 is formed in the insertion hole 13 of the docking part 11. The annular positioning surface 130 is perpendicular to the axis of the insertion hole 13 and is adapted to axially abut against the end face of the jet end 21 of the jet pipe 2 of the jet gun, for axial positioning of the jet pipe 2 of the jet gun.

[0077] like Figures 6 to 8 As shown, in the illustrated embodiment, the nozzle 1 further includes an elastic sealing layer 13a (see the first embodiment). Figure 5 The elastic sealing layer 13a is formed on the annular positioning surface 130 within the insertion hole 13 of the docking portion 11. The elastic sealing layer 13a is adapted to be axially pressed between the end face of the jet end 21 of the jet pipe 2 of the jet gun and the annular positioning surface 130 within the insertion hole 13 of the docking portion 11 to achieve a seal between the jet pipe 2 and the jet nozzle 1.

[0078] like Figures 6 to 8As shown in the illustrated embodiment, the nozzle 1 further includes a mounting portion 110, which is formed on the outside of the peripheral wall of the mating portion 11 and has a receiving chamber 100 for mounting and positioning the nut 19. A through hole 101 is formed on the peripheral wall of the mating portion 11 to allow a bolt 18 to pass through, so that the mating portion 11 can be fastened to the jet end 21 of the jet pipe 2 of the jet gun by a bolt 18 that is threaded to the nut 19 and passes through the through hole 101.

[0079] like Figures 6 to 8 As shown in the illustrated embodiment, an insertion port for inserting a nut 19 is formed on the side of the receiving chamber 100 of the mounting portion 110, and a through hole 101 for allowing a bolt 18 to pass through is formed on the top wall of the receiving chamber 100 of the mounting portion 110.

[0080] like Figures 6 to 8 As shown, in the illustrated embodiment, the nozzle 1 also includes a nut 19, which is inserted and positioned into the receiving chamber 100 of the mounting portion 110 for threaded connection with the bolt 18.

[0081] like Figures 6 to 8 As shown, in the illustrated embodiment, the nozzle 1 further includes a bolt 18, which is threaded to a nut 19 and passes through a through hole 101 on the mating portion 11. The bolt 18 is adapted to abut against the jet end 21 of the jet pipe 2 of the jet gun inserted into the mating portion 11 to secure the mating portion 11 to the jet end 21 of the jet pipe 2 of the jet gun.

[0082] like Figures 6 to 8 As shown, in the illustrated embodiment, the outer contour of the nut 19 is non-circular; for example, the nut 19 is hexagonal. The receiving chamber 100 of the mounting portion 110 has a non-circular inner contour that mates with the outer contour of the nut 19, so that the nut 19 inserted into the receiving chamber 100 of the mounting portion 110 cannot rotate.

[0083] like Figures 6 to 8 As shown, in another exemplary embodiment of the present invention, a jet gun is also provided. The jet gun includes: a compressed gas generating device (not shown), a jet pipe 2, and a jet nozzle 1. The compressed gas generating device is used to generate compressed gas. The jet pipe 2 is connected to the compressed gas generating device and is used to output compressed gas. The jet nozzle 1 is fitted and fixed to the jet end 21 of the jet pipe 2. The jet end 21 of the jet pipe 2 is inserted into the insertion hole 13 of the mating portion 11 of the jet nozzle 1, and the jet hole 20 of the jet pipe 2 mates with the communicating hole 15 of the jet nozzle 1.

[0084] like Figures 6 to 8As shown in the illustrated embodiment, the jet nozzle 20 of the jet gun's jet pipe 2 is aligned with the maximum opening of the horn-shaped air inlet 150 of the jet nozzle 1's connecting hole 15, and the diameter of the jet nozzle 2's jet nozzle 2 is equal to the maximum opening diameter of the horn-shaped air inlet 150.

[0085] This invention aims to significantly improve the efficiency of compressed air utilization in compressed air jet guns by integrating an innovative energy-saving jet nozzle at its tail end, thereby achieving efficient compressed air utilization and energy-saving goals. The nozzle features a special internal flow channel structure, which effectively promotes optimized compressed airflow, resulting in significant energy savings. The nozzle can be manufactured using 3D printing technology to achieve precise molding and lightweighting of complex structures. For applications requiring higher strength, aluminum alloy can be used as the base material, manufactured through machining. The nozzle design is compatible with standard 6mm diameter jet pipes, facilitating quick installation and replacement, while providing an adjustment range to adapt to different operational needs. A locking structure is incorporated into the nozzle to securely fasten it to the jet gun's jet pipe, ensuring stability and safety during use.

[0086] The jet nozzle of this invention has the following beneficial technical effects: while maintaining the original purging effect, it significantly reduces the amount of compressed air used, thereby reducing the power consumption of the air compressor and related operating costs; the jet nozzle has good interchangeability with existing jet guns, and can be easily replaced without modifying existing jet guns, simplifying the spare parts replacement process and reducing maintenance difficulty and costs. Experimental verification shows that the jet nozzle can reduce compressed air usage by 60% while achieving the same jet velocity and pressure as before the nozzle was not installed.

[0087] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this invention.

[0088] Although the invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the invention and should not be construed as limiting the invention.

[0089] While some embodiments of the general concept of the invention have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of the invention, the scope of which is defined by the claims and their equivalents.

[0090] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of the invention.

Claims

1. A jet nozzle, characterized in that, include: The docking part (11) has a socket (13) for inserting the jet end (21) of the jet pipe (2) of the jet gun; and The jet unit (12) is located in front of the docking part (11) and is axially connected to the docking part (11). A connecting hole (15) and an exhaust hole (14) extending axially along the insertion hole (13) are formed in the jet section (12). The connecting hole (15) axially connects the insertion hole (13) and the exhaust hole (14), and the diameter of the connecting hole (15) is smaller than that of the exhaust hole (14). An air intake (16) is formed on the peripheral wall of the jet section (12) to connect the air outlet (14) and the external atmosphere. The air intake (16) has an inlet located on the outer peripheral surface of the jet section (12) and extends forward at an angle from its inlet.

2. The jet nozzle according to claim 1, characterized in that: The angle (α) between the axis of the air intake hole (16) and the axis of the connecting hole (15) is greater than 10 degrees and less than 70 degrees.

3. The jet nozzle according to claim 1, characterized in that: The diameter of the air intake hole (16) is smaller than the diameter of the air outlet hole (14) but larger than the diameter of the connecting hole (15).

4. The jet nozzle according to claim 1, characterized in that: The connecting hole (15) has a horn-shaped air inlet (150) for docking with the air inlet (20) of the air pipe (2) of the air gun, and the horn-shaped air inlet (150) of the connecting hole (15) opens toward the insertion hole (13).

5. The jet nozzle according to claim 4, characterized in that: The horn-shaped air inlet (150) of the connecting hole (15) has a smooth arc-shaped inner surface for unobstructedly guiding the compressed airflow ejected from the air outlet (20) of the jet pipe (2) of the jet gun into the connecting hole (15).

6. The jet nozzle according to claim 4, characterized in that: The diameter of the connecting hole (15) other than the horn-shaped air inlet (150) remains constant and is equal to the minimum opening diameter of the horn-shaped air inlet (150). The maximum opening diameter of the horn-shaped air inlet (150) of the connecting hole (15) is equal to the diameter of the air inlet (20) of the air jet pipe (2) of the air jet gun.

7. The jet nozzle according to claim 4, characterized in that: The minimum opening diameter of the horn-shaped air inlet (150) is no greater than half the diameter of the air outlet (14), and the maximum opening diameter of the horn-shaped air inlet (150) is smaller than the diameter of the air outlet (14).

8. The jet nozzle according to claim 1, characterized in that: The intake hole (16) has an outlet communicating with the outlet hole (14), and the outlet of the intake hole (16) is adjacent to the outlet of the communicating hole (15), such that the compressed airflow ejected from the communicating hole (15) and the external air drawn in from the intake hole (16) can mix in the rear end of the outlet hole (14).

9. The jet nozzle according to claim 1, characterized in that: A pair of air intake holes (16) are formed on the peripheral wall of the air intake part (12) of the air nozzle (1), and the pair of air intake holes (16) are opposite to the air outlet (14) in the radial direction.

10. The jet nozzle according to claim 1, characterized in that: A plurality of air intake holes (16) are formed on the peripheral wall of the air intake part (12) of the air nozzle (1), and the plurality of air intake holes (16) are evenly spaced in the circumferential direction of the air outlet (14).

11. The jet nozzle according to claim 1, characterized in that: The jet nozzle (1) is a one-piece 3D printed part or a one-piece machined part.

12. The jet nozzle according to claim 1, characterized in that: The diameter of the insertion hole (13) of the docking part (11) is equal to or slightly larger than the diameter of the jet pipe (2) of the jet gun.

13. The jet nozzle according to claim 1, characterized in that: An annular positioning surface (130) surrounding the connecting hole (15) is formed in the insertion hole (13) of the docking part (11). The annular positioning surface (130) is perpendicular to the axis of the insertion hole (13) and is adapted to axially abut against the end face of the jet end (21) of the jet pipe (2) of the jet gun, for axial positioning of the jet pipe (2) of the jet gun.

14. The jet nozzle according to claim 13, characterized in that, Also includes: An elastic sealing layer (13a) is formed on the annular positioning surface (130) within the insertion hole (13) of the mating portion (11). The elastic sealing layer (13a) is adapted to be axially pressed between the end face of the jet end (21) of the jet pipe (2) of the jet gun and the annular positioning surface (130) in the insertion hole (13) of the docking part (11) to achieve a seal between the jet pipe (2) and the jet nozzle (1).

15. The jet nozzle according to any one of claims 1-14, characterized in that: A threaded hole (17) is formed on the peripheral wall of the docking part (11) so that the docking part (11) can be fastened to the jet end (21) of the jet gun's jet pipe (2) by a bolt (18) connected to the threaded hole (17).

16. The jet nozzle according to claim 15, characterized in that, Also includes: Bolt (18) is threaded into the threaded hole (17). The bolt (18) is adapted to abut against the jet end (21) of the jet pipe (2) of the jet gun inserted into the docking part (11) to fasten the docking part (11) to the jet end (21) of the jet pipe (2) of the jet gun.

17. The jet nozzle according to any one of claims 1-14, characterized in that, Also includes: The mounting portion (110) is formed on the outside of the peripheral wall of the mating portion (11) and has a receiving chamber (100) for mounting and positioning the nut (19). A through hole (101) is formed on the peripheral wall of the docking part (11) to allow a bolt (18) to pass through, so that the docking part (11) can be fastened to the jet end (21) of the jet gun's jet pipe (2) by a bolt (18) that is threaded to the nut (19) and passes through the through hole (101).

18. The jet nozzle according to claim 17, characterized in that: An insertion port for inserting the nut (19) is formed on the side of the receiving chamber (100) of the mounting part (110), and a through hole (101) for allowing the bolt (18) to pass through is formed on the top wall of the receiving chamber (100) of the mounting part (110).

19. The jet nozzle according to claim 17, characterized in that, Also includes: Nut (19) is inserted and positioned into the receiving chamber (100) of the mounting part (110) for threaded connection with bolt (18).

20. The jet nozzle according to claim 19, characterized in that, Also includes: A bolt (18) is threaded to the nut (19) and passes through a through hole (101) in the mating part (11). The bolt (18) is adapted to abut against the jet end (21) of the jet pipe (2) of the jet gun inserted into the docking part (11) to fasten the docking part (11) to the jet end (21) of the jet pipe (2) of the jet gun.

21. The jet nozzle according to claim 19, characterized in that: The outer contour of the nut (19) is non-circular, and the receiving chamber (100) of the mounting part (110) has a non-circular inner contour that matches the outer contour of the nut (19), so that the nut (19) inserted into the receiving chamber (100) of the mounting part (110) cannot rotate.

22. A jet gun, characterized in that, include: Compressed gas generating device, used to generate compressed gas; The jet pipe (2) is connected to the compressed gas generating device and is used to output compressed gas; and The jet nozzle (1) according to any one of claims 1-21 is fitted and fixed to the jet end (21) of the jet pipe (2). The jet end (21) of the jet pipe (2) is inserted into the insertion hole (13) of the docking part (11) of the jet nozzle (1), and the jet hole (20) of the jet pipe (2) is connected to the connecting hole (15) of the jet nozzle (1).

23. The jet gun according to claim 22, characterized in that: The jet nozzle (20) of the jet gun's jet pipe (2) is aligned with the maximum opening of the horn-shaped air inlet (150) of the jet nozzle (1)'s connecting hole (15), and the diameter of the jet nozzle (2) of the jet gun is equal to the maximum opening diameter of the horn-shaped air inlet (150).

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