Nozzle mechanism with standing wave cavity

Abstract

The present application provides a nozzle mechanism with standing wave cavity, which is used to solve the problem of insufficient cavitation intensity of ultrasonic wave on water in the prior art. To achieve the above object and other related objects, the present application provides a nozzle mechanism with standing wave cavity, which comprises: a variable amplitude rod, a water channel is arranged in the variable amplitude rod, the front end of the variable amplitude rod is a water outlet end, and the rear end of the variable amplitude rod is a water inlet end; a sheath, the sheath is sleeved on the outside of the variable amplitude rod, the front part of the sheath is provided with a standing wave cavity and a water outlet port communicated with the standing wave cavity, and the front end of the variable amplitude rod is located in the standing wave cavity. When the variable amplitude rod vibrates, the variable amplitude rod can make water cavitate, and the sheath can protect the variable amplitude rod, and at the same time, the standing wave cavity arranged on the sheath can effectively improve the cavitation intensity of ultrasonic wave, so that the disinfection / sterilization effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of nozzle mechanism with standing wave cavity in the field of dental equipment. BACKGROUND

[0002] With the development of society, the progress of science and technology, oral care products are also more and more, such as sonic toothbrush, oral irrigator, etc., among which oral irrigator is one of the fastest growing products in recent years. Brushing is the oral care work that everyone has to do every day, but in some cases, brushing will be difficult, such as in the stage of orthodontic treatment, periodontal treatment, etc., at this time oral irrigator should be used for oral care. Oral irrigator is used to wash the dental crevice, periodontal and tooth surface with high-pressure water flow to remove food residues and other sundries. At present, the oral irrigator products on the market are more and more, and the acceptance of people is also higher and higher, and the product technology is also continuously improved. From the previous single continuous water flow washing, pulse water flow washing, gas-liquid mixed washing and other functions have been developed.

[0003] The existing nozzle mechanism is designed unreasonably, which affects the bactericidal and dental cleaning effect due to insufficient cavitation intensity of ultrasonic waves on water. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a nozzle mechanism with standing wave cavity to solve the problem of insufficient cavitation intensity of ultrasonic waves on water in the prior art.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides a nozzle mechanism with standing wave cavity, comprising:

[0006] An amplitude-varying rod is provided with a water channel inside, the front end of the amplitude-varying rod is a water outlet end, and the rear end of the amplitude-varying rod is a water inlet end;

[0007] A sheath is provided outside the amplitude-varying rod, the front part of the sheath is provided with a standing wave cavity and a water outlet opening in communication with the standing wave cavity, the front end of the amplitude-varying rod is located in the standing wave cavity, and the water outlet end of the amplitude-varying rod is in communication with the standing wave cavity.

[0008] Optionally, the water outlet end of the amplitude-varying rod is a ball head structure.

[0009] Optionally, the water outlet opening is in an angle with the axis of the amplitude-varying rod.

[0010] Optionally, the water outlet opening is in a structure of decreasing hole diameter along the water outlet direction, or in a structure of increasing hole diameter along the water outlet direction, or in an equal-diameter structure.

[0011] Optionally, the outer contour of the front end of the sheath is a blunt structure.

[0012] Optionally, the front end of the sheath has a chamfered structure or an arc structure.

[0013] Optionally, the amplitude rod has a decreasing diameter along the water jet direction, or the amplitude rod has a constant diameter structure.

[0014] Optionally, the sheath and the amplitude rod are connected by an elastic sealing structure, which can be matched with a neck structure formed by the position of the ball head structure of the amplitude rod.

[0015] Optionally, the elastic sealing structure includes at least one soft rubber ring, which is sleeved on the amplitude rod and located in the sheath.

[0016] Optionally, the water channel includes a converging section, which has a decreasing diameter along the water jet direction.

[0017] Optionally, the water channel further includes an expanding section, which is in communication with the converging section to form a water channel structure of converging first and then expanding, and the expanding section is arranged at the water outlet end of the amplitude rod and in communication with the standing wave cavity.

[0018] As described above, the nozzle mechanism with a standing wave cavity has at least the following beneficial effects:

[0019] By arranging the water channel on the amplitude rod, the amplitude rod can cavitate water when vibrating, and the sheath can protect the amplitude rod. Meanwhile, the standing wave cavity arranged on the sheath can effectively improve the strength of ultrasonic cavitation, so that the disinfection / cleaning effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A schematic view of the nozzle mechanism with a standing wave cavity is shown.

[0021] Figure 2 A schematic view of the nozzle mechanism with a standing wave cavity is shown.

[0022] Figure 3 A schematic view of the nozzle mechanism with a standing wave cavity is shown.

[0023] Element number description: amplitude rod 1, sheath 2, water outlet end 11, water inlet end 12, standing wave cavity 21, water jet port 211, converging section 31, tapered hole 311, expanding section 32, ball head structure 111. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0025] Please refer toFigures 1 to 3 It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the present specification are merely used to illustrate the content disclosed in the present specification, to enable those skilled in the art to understand and read, and are not used to limit the conditions under which the present application can be implemented, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the present specification are merely for the purpose of clear understanding of the description, and are not used to limit the scope in which the present application can be implemented, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope in which the present application can be implemented.

[0026] The following embodiments are only for illustration. The various embodiments can be combined, which are not limited to the content shown in the following single embodiment.

[0027] Please refer to Figure 1 The present application provides an embodiment of a nozzle mechanism with a standing wave cavity, which comprises a variable amplitude rod 1 and a sheath 2. The variable amplitude rod 1 is provided with a water channel, the front end of the variable amplitude rod 1 is a water outlet end 11, and the rear end of the variable amplitude rod 1 is a water inlet end 12. The sheath 2 is sleeved on the outside of the variable amplitude rod 1, the front part of the sheath 2 is provided with a standing wave cavity 21 and a water outlet 211 communicating with the standing wave cavity 21, and the water outlet end 11 of the variable amplitude rod 1 is located in the standing wave cavity 21, and the water outlet end of the variable amplitude rod communicates with the standing wave cavity. By providing a water channel on the variable amplitude rod 1, the variable amplitude rod 1 can cavitate water when vibrating, and the sheath 2 can protect the variable amplitude rod 1. At the same time, by providing a standing wave cavity 21 on the sheath 2, the intensity of ultrasonic cavitation can be effectively improved, and the disinfection / cleaning effect is better.

[0028] In the present embodiment, please refer to Figure 1 To make the standing wave intensity higher, the water outlet direction of the water outlet 211 and the axis of the variable amplitude rod form an angle. The angle of the angle can be 30 degrees, 60 degrees, 90 degrees, etc.

[0029] In the present embodiment, please refer to Figures 1 to 3 The water outlet 211 is a structure with a hole diameter that increases along the water outlet direction. The water outlet 211 is a conical structure to ensure that the water column is large and the flushing area is increased.

[0030] In the present embodiment, the water outlet 211 is a structure with a hole diameter that decreases along the water outlet direction. The converging structure makes it difficult for water pressure to decay, ensuring the flushing pressure.

[0031] In the embodiment, the water outlet 211 is of equal diameter structure. As an implementation of the product, it can be selected according to different product requirements.

[0032] In the embodiment, please refer to Figures 1 to 3 , the water channel includes a converging section 31. The converging section 31 converges in the water outlet direction hole diameter. The water channel convergence can reduce or avoid water pressure attenuation, so that the flushing effect is better. The water channel convergence can be gradual, such as Figures 1 to 3 , the multiple tapered holes 311 are sequentially connected, and the connection adopts a gradual transition; the water channel convergence can also be sudden, such as a stepped hole form.

[0033] In the embodiment, please refer to Figures 1 to 3 , the water channel further includes an expanding section 32. The expanding section 32 and the converging section 31 are in communication to form a water channel structure of converging first and then expanding. The expanding section 32 is arranged at the water outlet end 11 of the amplitude rod 1 and is in communication with the standing wave cavity 21. The design of the expanding section 32 can make the water column entering the standing wave cavity 21 larger.

[0034] In the embodiment, please refer to Figures 1 to 3 , the water outlet end 11 of the amplitude rod 1 is provided with a ball head structure 111. The design of the ball head structure 111 increases the wall thickness of the end of the amplitude rod 1, and the structural strength is improved, thereby improving the service life.

[0035] In the embodiment, please refer to Figure 1 , the outer contour of the front end of the sheath 2 is a blunt structure. The blunt structure can avoid damage to people. Optionally, the outer contour of the front end of the sheath 2 is a chamfer structure or an arc structure. The arc structure can be a spherical structure or a water droplet-like structure.

[0036] In the embodiment, please refer to Figures 1 to 3 , the outer diameter of the amplitude rod 1 decreases along the water outlet direction. Its function is to amplify the amplitude value of ultrasonic vibration. According to the vibration principle, its diameter should gradually decrease from the large end to the small end. The diameter ratio of the large end to the small end is the amplification coefficient of the amplitude rod 1. Optionally, the diameter of the large end is designed to be 8-20 mm, and the optimal value is 10 mm. The diameter of the small end of the amplitude rod 1 is designed to be 1-5 mm, and the optimal value is 2 mm.

[0037] In the embodiment, the outer diameter of the amplitude rod 1 is of equal diameter structure.

[0038] In the embodiment, please refer to Figure 1The elastic sealing structure is connected between the sheath 2 and the amplitude rod 1, and can be matched with the neck structure formed by the ball head structure to achieve better sealing effect. Optionally, the elastic sealing structure comprises at least one soft rubber ring, which is sleeved on the amplitude rod 1 and located in the sheath 2. The soft rubber ring can adapt to the amplitude of the amplitude rod 1, and reduce or avoid excessive amplitude interference on the amplitude rod 1. The elastic sealing structure can avoid the backflow of water in the standing wave cavity from the gap between the amplitude rod and the sheath, and the elastic structure can facilitate repeated installation or disassembly of the sheath and replacement of different sheaths. The soft rubber ring can be fixed on the inner wall of the sheath and in interference fit with the position of the neck structure.

[0039] In summary, the present application sets a water channel on the amplitude rod 1, so that the amplitude rod 1 can cavitate water when vibrating, and the sheath 2 can protect the amplitude rod 1. Meanwhile, the standing wave cavity 21 set on the sheath 2 can effectively improve the strength of ultrasonic cavitation, and the disinfection / cleaning effect is better. Therefore, the present application effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0040] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A nozzle mechanism with a standing wave cavity, characterized in that, include: A boom with a water channel inside, the front end of the boom being the water outlet and the rear end being the water inlet; A sheath is fitted over the amplitude transformer. The front of the sheath is provided with a standing wave cavity and a water nozzle communicating with the standing wave cavity. The front end of the amplitude transformer is located inside the standing wave cavity. The water outlet end of the amplitude transformer is communicating with the standing wave cavity. The water outlet end of the amplitude transformer has a ball head structure.

2. The nozzle mechanism with standing wave cavity according to claim 1, characterized in that: The spray direction of the nozzle forms an angle with the axis of the amplitude transformer.

3. The nozzle mechanism with standing wave cavity according to claim 1, characterized in that: The water nozzle has a decreasing diameter structure along the water spray direction, or the water nozzle has a increasing diameter structure along the water spray direction, or the water nozzle has a constant diameter structure.

4. The nozzle mechanism with standing wave cavity according to claim 1, characterized in that: The outer contour of the front end of the sheath is a blunt shape.

5. The nozzle mechanism with standing wave cavity according to claim 4, characterized in that: The outer contour of the front end of the sheath is a chamfered or arc-shaped structure.

6. The nozzle mechanism with standing wave cavity according to claim 1, characterized in that: The outer diameter of the amplitude transformer decreases along the water spraying direction, or the outer diameter of the amplitude transformer is a constant diameter structure.

7. The nozzle mechanism with standing wave cavity according to claim 1, characterized in that: The sheath and the amplitude rod are connected by an elastic sealing structure, which can cooperate with the neck-shaped structure formed at the ball head position of the amplitude rod.

8. The nozzle mechanism with standing wave cavity according to claim 7, characterized in that: The elastic sealing structure includes at least one soft rubber ring, which is fitted onto the amplitude rod and located inside the sheath.

9. The nozzle mechanism with standing wave cavity according to claim 1, characterized in that: The waterway includes a converging section, wherein the orifice diameter decreases along the direction of water spray.

10. The nozzle mechanism with standing wave cavity according to claim 9, characterized in that: The waterway also includes an expansion section, which is connected to the convergence section to form a waterway structure that converges first and then expands. The expansion section is located at the outlet end of the amplitude transformer and is connected to the standing wave cavity.

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