TWM525795U - Fog-shape and flow rate stabilized nozzle - Google Patents

Description

Mist and flow stable nozzle

The present invention relates to a nozzle for atomizing a liquid, and more particularly to a nozzle having a stable mist and flow rate.

The conventional nozzles can be found in the "dissolvable micro-fog nozzle" disclosed in the TW M303775 patent, which has a body, a nozzle head connected to one end of the body, and a passage of a rotor inside the nozzle head, the nozzle head One end has a water outlet. In the past, in order to allow liquid to be ejected from the water outlet, a large gap was designed between the rotor and the channel wall, which is usually greater than 0.15 mm.

However, such a design that leaves a large gap between the rotor and the passage easily causes the rotor to deflect or radially displace within the passage and cannot be maintained at a predetermined axial position, resulting in a stable flow rate and fog shape. And it is difficult to achieve the original set spray effect.

Therefore, how to improve the stability of the nozzle during the spraying process is considered by those skilled in the art.

The main purpose of this creation is to provide a nozzle that is foggy and flow stable.

In order to achieve the above object, the present invention provides a nozzle including a body, a nozzle head, a rotor, a leak stop valve, and a spring. The main body has a first axial passage, and the first axial passage sequentially has an internal thread section, a large diameter section, a stop step portion and a small diameter section in the axial direction, and the inner diameter of the large diameter section is larger than the small diameter segment. The nozzle head has an external thread portion and a second axial direction The passage, the second axial passage has a water outlet and a circular hole section in the axial direction thereof, and the external thread portion extends from the end of the nozzle head away from the water outlet and partially overlaps with the circular hole section, and the external thread portion of the nozzle head And screwed into the internal thread segment of the body, so that the circular hole segment communicates with the large diameter segment. The rotor has a cylindrical section, an externally threaded section, a stop section and a spring sleeve section. The cylindrical section, the externally threaded section, the stop section and the spring sleeve section are coaxial, and the externally threaded section is located in the cylindrical section and the stop section. Between the outer thread section and the spring sleeve section, the cylindrical section and the outer thread section are received in the circular hole section, the outer thread section surface forms at least one spiral groove, and the outer thread section has the largest The diameter is adjacent to the wall surface of the circular hole section, and the stopping section and the spring sleeve section are accommodated in the large diameter section, and the outer diameter of the stopping section is larger than the inner diameter of the circular hole section. The leakage stop valve is located in the large diameter section, the spring sleeve is sleeved on the spring sleeve section, and the two ends of the spring respectively abut against the stop section of the rotor and the leakage stop valve, so that the leakage stop valve has a retaining fit against the stop The elastic pre-force of the step selectively selectively disconnects the large diameter section from the small diameter section. A first flow path is defined between the cylindrical section and the circular hole section to communicate with the water outlet, and a second flow path is defined between the spiral groove and the circular hole section to communicate between the first flow path and the large diameter section.

Thereby, the rotor can be substantially closely attached to the inner wall surface of the rotor head by the external thread segment, so that the rotor can be stably maintained at a predetermined axial center position, and is not easily deflected by the liquid flow during use, thereby causing the sprayed The fog shape and flow rate are also stable.

10‧‧‧ Ontology

11‧‧‧First axial channel

12‧‧‧Threaded section

13‧‧‧ Large diameter section

14‧‧‧stop step

15‧‧‧Small path

16‧‧‧Connectors

17, 18‧‧‧ water stop gasket

20‧‧‧Nozzle head

21‧‧‧External thread

22‧‧‧Second axial channel

23‧‧‧Water outlet

24‧‧‧ round hole section

30‧‧‧Rotor

31‧‧‧ cylindrical section

315‧‧‧First runner

32‧‧‧External thread section

321‧‧‧Spiral groove

325‧‧‧Second runner

33‧‧‧stop section

34‧‧‧Spring sleeves

341‧‧‧ annular convex

40‧‧‧ leak valve

50‧‧‧ Spring

Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of the preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of the preferred embodiment of the present invention.

Figure 4 is a schematic cross-sectional view showing the preferred embodiment of the present invention.

Please refer to Figures 1 to 3, which is a preferred embodiment of the creation nozzle. The nozzle includes a body 10, a nozzle head 20, a rotor 30, a leak stop valve 40, and a spring 50.

The body 10 has a first axial passage 11 , and the first axial passage 11 has an internal thread section 12 , a large diameter section 13 , a stop step 14 and a small diameter section 15 in the axial direction, and is large. The inner diameter of the diameter section 13 is larger than the small diameter section 15. In addition, in order to connect the nozzle to the external nozzle holder, a joint 16 may be formed at one end of the body 10 away from the nozzle head 20. The outer surface of the joint 16 may be externally threaded to facilitate screwing with the nozzle seat, and the outer surface of the joint 16 may also be A water stop gasket 17 is disposed between the body 10 and the nozzle holder.

The nozzle head 20 has an external thread portion 21 and a second axial passage 22. The second axial passage 22 has a water outlet 23 and a circular hole portion 24 in the axial direction thereof, and the external thread portion 21 is away from the nozzle head 20. One end of the nozzle 23 extends axially and partially radially overlaps the circular hole section 24, and the external thread portion 21 of the nozzle head 20 is screwed to the internal thread section 12 of the body such that the circular hole section 24 can communicate with the large diameter section 13. In addition, in order to achieve watertightness between the body 10 and the nozzle head 20, a water stop gasket 18 may be disposed between the body 10 and the nozzle head 20.

The rotor 30 has a cylindrical section 31, an externally threaded section 32, a stop section 33 and a spring sleeve section 34. The cylindrical section 31, the externally threaded section 32, the stop section 33 and the spring sleeve section 34 are all coaxial. The outer threaded section 32 is located between the cylindrical section 31 and the stop section 33, and the stop section 33 is located between the outer threaded section 32 and the spring sleeve section 34. The cylindrical section 31 and the externally threaded section 32 are received in the nozzle head 20. The circular hole section 24 is formed, and the surface of the external thread section 32 forms at least one spiral groove 321 (which may be a single spiral groove, a double spiral groove or more), and the maximum diameter of the external thread section 32 is adjacent to the inside of the circular hole section 24. Wall. In a preferred embodiment, the distance between the outer thread segment 32 and the inner wall surface of the circular hole segment 24 is not More than 0.04mm. On the other hand, the stop portion 33 and the spring sleeve portion 34 are received in the large diameter section 13 of the body 10, and the outer diameter of the stop portion 33 is larger than the inner diameter of the circular hole portion 24.

A first flow path 315 is defined between the cylindrical section 31 and the inner wall surface of the circular hole section 24 to communicate with the water outlet 23, and a second flow path 325 is defined between the spiral groove 321 and the inner wall surface of the circular hole section 24 to communicate with the first flow. Between the channel 315 and the large diameter section 13, the liquid can smoothly flow from the large diameter section 13 to the water outlet 23, and is ejected from the water outlet 23.

The leak stop valve 40 is also disposed in the large diameter section 13 of the body 10, and the spring 50 is sleeved on the spring sleeve section 34 and the two ends thereof are respectively abutted against the stop section 33 of the rotor 30 and the leak stop valve 40. The leak valve 40 has an elastic preload force that is held against the stop portion 13 of the body 10 to selectively disengage the large diameter section 13 from the small diameter section 15. In order to allow the spring 50 to be more tightly sleeved on the spring sleeve portion 34, the outer wall surface of the spring sleeve portion 34 can further form an annular convex portion 341 for the spring 50 to be clamped.

As shown in FIG. 4, in use, the nozzle is connected to the nozzle holder and receives the liquid flowing out of the nozzle of the nozzle holder, and the hydraulic pressure thereof is greater than the elastic pre-force provided by the spring 50 to the leak-stop valve 40 to cause the leak-stop valve 40 to be disengaged. The step 14 is blocked, and the small diameter section 15 is further connected to the large diameter section 13. The liquid flows through the large diameter section 13, the second passage 325 and the first passage 315 in sequence, and is finally ejected from the water outlet 23. Since the rotor 30 is substantially in close contact with the inner wall surface of the circular hole section 24 of the nozzle head 20 by the externally threaded section 32, the rotor 30 can be stably maintained at the axial center position, and the spray shape and flow rate of the nozzle can be kept stable. .

On the other hand, when the nozzle holder no longer supplies the liquid continuously, the hydraulic pressure in the flow passage no longer has sufficient hydraulic pressure, and the elastic pre-force of the spring 50 pushes the leakage stop valve 40 toward the stop step 14, so that the large diameter section 13 does not Further, the small diameter section 15 is connected to prevent the liquid from continuously leaking out from the water outlet 23, thereby achieving the effect of stopping leakage.

10‧‧‧ Ontology

11‧‧‧First axial channel

12‧‧‧Threaded section

13‧‧‧ Large diameter section

14‧‧‧stop step

15‧‧‧Small path

16‧‧‧Connectors

17, 18‧‧‧ water stop gasket

20‧‧‧Nozzle head

21‧‧‧External thread

22‧‧‧Second axial channel

23‧‧‧Water outlet

24‧‧‧ round hole section

30‧‧‧Rotor

31‧‧‧ cylindrical section

315‧‧‧First runner

32‧‧‧External thread section

321‧‧‧Spiral groove

325‧‧‧Second runner

33‧‧‧stop section

34‧‧‧Spring sleeves

341‧‧‧ annular convex

40‧‧‧ leak valve

50‧‧‧ Spring

Claims (6)

The invention relates to a nozzle and a flow-stable nozzle, comprising: a body having a first axial passage, the first axial passage sequentially having an internal thread segment, a large diameter segment and a stop step in its axial direction. And a small diameter section, the inner diameter of the large diameter section is larger than the small diameter section; a nozzle head having an external thread portion and a second axial passage, the second axial passage having sequentially in the axial direction thereof a water outlet and a circular hole portion, the external thread portion extending axially from an end of the nozzle head away from the water outlet and partially overlapping the circular hole portion, the external thread portion of the nozzle head being screwed into the body a threaded section, the circular hole section is connected to the large diameter section; a rotor having a cylindrical section, an externally threaded section, a stop section and a spring sleeve section, the cylindrical section, the externally threaded section and the stop section And the spring sleeve portion is coaxial, the external thread segment is located between the cylindrical segment and the stop segment, and the stop segment is located between the external thread segment and the spring sleeve segment, the cylindrical segment and the external thread a segment is disposed in the circular hole segment, the outer thread segment surface forms at least one spiral groove, and the outer screw The maximum diameter of the segment is adjacent to the wall surface of the circular hole segment, the stop segment and the spring sleeve segment are received in the large diameter segment, and the outer diameter of the stop segment is larger than the inner diameter of the circular hole segment; A first flow path is defined between the cylindrical section and the circular hole section to communicate with the water outlet, and a second flow path is defined between the spiral groove and the circular hole section to communicate with the first flow path and the large diameter section. a leakage valve is disposed in the large diameter section; and a spring is sleeved on the spring sleeve section, and the two ends of the spring respectively abut against the stop section of the rotor and the leakage stop valve The leak valve has an elastic preload that is held against the stop step to selectively disengage the large diameter section from the small diameter section. The nozzle of claim 1, wherein the outer wall surface of the spring sleeve portion forms an annular projection for the spring clip. The nozzle of claim 1, wherein a water stop gasket is disposed between the body and the nozzle head. The nozzle of claim 1, wherein the body is formed at a distal end of the nozzle head to form a joint, and the outer surface of the joint is formed with an external thread. The nozzle of claim 4, wherein the outer surface of the joint is sleeved with a water stop gasket. The nozzle of claim 1, wherein a minimum distance between the largest diameter of the externally threaded section and the wall surface of the circular aperture section is no more than 0.04 mm.