WO2020125013A1 - 喷嘴结构及具有其的喷枪 - Google Patents

喷嘴结构及具有其的喷枪 Download PDF

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Publication number
WO2020125013A1
WO2020125013A1 PCT/CN2019/097487 CN2019097487W WO2020125013A1 WO 2020125013 A1 WO2020125013 A1 WO 2020125013A1 CN 2019097487 W CN2019097487 W CN 2019097487W WO 2020125013 A1 WO2020125013 A1 WO 2020125013A1
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injection
injection hole
nozzle
nozzle structure
structure according
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PCT/CN2019/097487
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English (en)
French (fr)
Inventor
黄家峰
周永志
林敏�
王焕焱
和明
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珠海格力智能装备有限公司
珠海格力电器股份有限公司
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Publication of WO2020125013A1 publication Critical patent/WO2020125013A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening

Definitions

  • the present invention relates to the technical field of car washing machines, and in particular, to a nozzle structure and a spray gun having the same.
  • the main purpose of the present invention is to provide a nozzle structure and a spray gun with the same to solve the problem of noise pollution in the spray gun in the prior art.
  • a nozzle structure including: a nozzle body having a first end and a second end, a plurality of injection holes being opened at the first end of the nozzle body; It includes an injection channel, one end of the injection channel is in communication with a plurality of injection holes, and the other end of the injection channel is provided in communication with the medium channel in the spray gun to allow the medium to be ejected from the multiple injection holes when the injection channel is in communication with the medium channel ;
  • the plurality of injection holes includes a first injection hole and a second injection hole, and the second injection hole is disposed around the first injection hole.
  • center line of the first injection hole coincides with the center line of the injection channel.
  • a flow-limiting portion is provided in the first injection hole, and the flow-limiting portion is a concave portion recessed from the inner wall of the first injection hole toward a direction away from the middle of the first injection hole.
  • the concave portion is arc-shaped.
  • the restrictor extends in the extending direction of the first injection hole.
  • the second injection hole is circular.
  • transition connection surface between the injection channel and the first injection hole, and the second injection hole is provided on the transition connection surface; wherein, the transition connection surface is inclined and the transition connection surface has a third end connected to the inner wall of the injection channel
  • the transition connection surface has a fourth end connected to the inner wall of the first injection hole, and the fourth end is located on the side of the third end near the first end of the nozzle body.
  • the nozzle structure further includes: a soundproof cover, the soundproof cover includes a connecting portion and a cover body, the connecting portion is connected to the nozzle body, the cover body is disposed around at least part of the nozzle body; the cover body has oppositely disposed fifth and sixth ends The sixth end of the cover body is connected to the connecting portion, and the fifth end of the cover body is located on the side of the first end of the nozzle body away from the second end of the nozzle body, so that a plurality of injection holes are located in the cover body.
  • a soundproof cover includes a connecting portion and a cover body, the connecting portion is connected to the nozzle body, the cover body is disposed around at least part of the nozzle body; the cover body has oppositely disposed fifth and sixth ends The sixth end of the cover body is connected to the connecting portion, and the fifth end of the cover body is located on the side of the first end of the nozzle body away from the second end of the nozzle body, so that a plurality of injection holes are located in the cover body.
  • the cover body has a tapered structure, and the small-diameter end of the tapered structure is connected to the connecting portion.
  • the cover body is provided with a plurality of through holes, and the plurality of through holes are located between the first end of the nozzle body and the fifth end of the cover body.
  • the outer peripheral surface of the nozzle body is provided with an external thread
  • the connecting portion has an internal thread suitable for the external thread
  • the connecting portion is sleeved on the nozzle body
  • the soundproof cover is engaged with the nozzle body through the cooperation between the external thread and the internal thread connection.
  • a spray gun including a nozzle structure, wherein the nozzle structure is the aforementioned nozzle structure.
  • the nozzle structure of the present invention achieves communication with the medium channel by providing a plurality of injection holes and injection channels on the nozzle body.
  • the plurality of injection holes are opened at the first end of the nozzle body.
  • Two injection holes, and the second injection hole is arranged around the first injection hole, so that the mixing ability of the first injection hole can be increased by the jet of the second injection hole, destroying the larger vortex in the mixing area, and playing a role in reducing noise purpose.
  • FIG. 1 shows a schematic structural view of an embodiment of a nozzle structure according to the present invention
  • FIG. 2 shows a cross-sectional view at the B-B section of the nozzle structure in FIG. 1;
  • FIG. 3 shows a partially enlarged view of the nozzle structure in FIG. 1 at A;
  • FIG. 4 shows a schematic structural view of an embodiment of a spray gun according to the present invention.
  • Nozzle body 11. Injection channel; 12. External thread; 20, Media channel; 30, First injection hole; 31, Restriction part; 40, Second injection hole; 50, Transition connection surface; 60, Soundproof cover ; 61, connecting portion; 62, cover; 621, through hole.
  • the present invention provides a nozzle structure, please refer to FIGS. 1 to 4, including: a nozzle body 10 having a first end and a second end, and a plurality of injection holes are opened at the first end of the nozzle body 10;
  • the main body 10 includes an injection channel 11, one end of the injection channel 11 communicates with a plurality of injection holes, and the other end of the injection channel 11 is communicably provided with the medium channel 20 in the spray gun so that when the injection channel 11 communicates with the medium channel 20, the The medium is ejected from a plurality of injection holes; wherein the plurality of injection holes include a first injection hole 30 and a second injection hole 40, and the second injection hole 40 is disposed around the first injection hole 30.
  • the nozzle structure of the present invention achieves communication with the medium channel 20 by providing a plurality of injection holes and injection channels 11 on the nozzle body 10, and the plurality of injection holes are opened at the first end of the nozzle body 10.
  • the injection hole 30 and the second injection hole 40, and the second injection hole 40 is disposed around the first injection hole 30, so that the mixing ability of the first injection hole 30 can be increased by the jet of the second injection hole 40, destroying the mixing zone Larger eddy currents serve the purpose of reducing noise.
  • the center line of the first injection hole 30 coincides with the center line of the injection channel 11.
  • the first injection hole 30 is provided with a flow restriction portion 31, and the flow restriction portion 31 is a concave portion that is recessed from the inner wall of the first injection hole 30 toward a direction away from the middle of the first injection hole 30.
  • This arrangement can increase the flow area of the first injection hole 30, thereby reducing the gas passing speed, and achieving the effect of noise reduction.
  • the arrangement of the flow restricting portion 31 can realize the positioning of the flow restricting portion 31 and ensure the stable flow of the airflow in the first injection hole 30.
  • the concave portion is arc-shaped.
  • the restrictor 31 extends along the extending direction of the first injection hole 30. This setting achieves a greater degree of noise reduction.
  • the second injection holes 40 are plural, and the plurality of second injection holes 40 are evenly arranged around the first injection hole 30.
  • the second injection hole 40 is circular. Such an arrangement enables the jet of the second injection hole 40 to further increase the mixing ability of the first injection hole 30 and improve the noise reduction effect.
  • transition connection surface 50 between the injection channel 11 and the first injection hole 30, and the second injection hole 40 is provided on the transition connection surface 50; wherein, the transition connection surface 50 is inclined and the transition connection surface 50 has At the third end connected to the inner wall of the injection passage 11, the transition connection surface 50 has a fourth end connected to the inner wall of the first injection hole 30, and the fourth end is located on the side of the third end near the first end of the nozzle body 10.
  • the nozzle structure further includes a soundproof cover 60.
  • the soundproof cover 60 includes a connecting portion 61 and a cover body 62.
  • the connecting portion 61 is connected to the nozzle body 10.
  • the cover body 62 is disposed around at least part of the nozzle body 10; the cover body 62 The fifth end and the sixth end are provided oppositely.
  • the sixth end of the cover body 62 is connected to the connecting portion 61.
  • the fifth end of the cover body 62 is located on the side of the first end of the nozzle body 10 away from the second end of the nozzle body 10 So that a plurality of injection holes are located in the cover 62. In this way, the installation of the soundproof cover 60 plays a role of heat insulation and noise reduction.
  • the soundproof cover 60 is made of plastic.
  • the soundproof cover is made of ABS plastic.
  • the cover 62 has a tapered structure, and the small-diameter end of the tapered structure is connected to the connecting portion 61.
  • the cover body 62 is provided with a plurality of through holes 621, and the plurality of through holes 621 are located between the first end of the nozzle body 10 and the fifth end of the cover body 62.
  • Such an arrangement can cause steam to be ejected from the through hole 621, further playing a role in reducing noise.
  • the outer peripheral surface of the nozzle body 10 is provided with an external thread 12
  • the connecting portion 61 has an internal thread suitable for the external thread 12
  • the connecting portion 61 is sleeved on the nozzle body 10
  • the soundproof cover 60 is connected to the nozzle body 10 through the fit between the external thread 12 and the internal thread.
  • the second end of the nozzle body 10 is provided with a mounting section, the mounting section is used to connect with the connecting structure in the spray gun, the mounting section is inserted in the connecting structure, the mounting section has a groove, and the connecting structure has a concave
  • the groove has a matching protruding portion, and the protruding portion is locked in the groove to connect the connection structure with the connection structure.
  • the present invention is designed on the basis of theoretical analysis of noise reduction.
  • the jet of the second injection hole 40 increases the mixing ability of the first injection hole 30, destroys the larger vortex in the mixing area, and serves to reduce noise and achieve Noise reduction effect.
  • the invention also provides a spray gun, including a nozzle structure, wherein the nozzle structure is the nozzle structure in the above embodiment.
  • the invention achieves the effect of reducing noise when the nozzle of the steam car washer sprays water flow, improves the cleaning environment, and enhances the equipment experience.
  • the nozzle structure of the present invention achieves communication with the medium channel 20 by providing a plurality of injection holes and injection channels 11 on the nozzle body 10, and the plurality of injection holes are opened at the first end of the nozzle body 10.
  • the injection hole 30 and the second injection hole 40, and the second injection hole 40 is disposed around the first injection hole 30, so that the mixing ability of the first injection hole 30 can be increased by the jet of the second injection hole 40, destroying the mixing zone Larger eddy currents serve the purpose of reducing noise.
  • spatially relative terms such as “above”, “above”, “above”, “above”, etc. can be used here to describe as shown in the figure The spatial relationship between a device or feature shown and other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device described in the figures. For example, if a device in the drawing is turned upside down, a device described as “above another device or configuration” or “above another device or configuration” will then be positioned as “below other device or configuration” or “in Under other devices or structures”. Thus, the exemplary term “above” may include both “above” and “below” orientations. The device can also be positioned in other different ways (rotated 90 degrees or at other orientations), and the relative description of the space used here is explained accordingly.

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Abstract

一种喷嘴结构及具有其的喷枪，喷嘴结构包括：喷嘴主体(10)，喷嘴主体(10)具有第一端和第二端，喷嘴主体(10)的第一端开设有多个喷射孔。喷嘴主体(10)包括喷射通道(11)，喷射通道(11)的一端与多个喷射孔连通，喷射通道(11)的另一端与喷枪内的介质通道(20)可连通地设置，以在喷射通道(11)与介质通道(20)连通时，使介质从多个喷射孔喷出。其中，多个喷射孔包括第一喷射孔(30)和第二喷射孔(40)，第二喷射孔(40)绕第一喷射孔(30)设置。具有该喷嘴结构的喷枪解决了现有技术中的喷枪存在噪声污染的问题。

Description

喷嘴结构及具有其的喷枪 技术领域
本发明涉及洗车机技术领域，具体而言，涉及一种喷嘴结构及具有其的喷枪。
背景技术
随着科技的不断发展，蒸汽洗车机的市场逐年累积，但是成熟的蒸汽洗车机喷枪结构较少。蒸汽洗车机喷枪在冲洗汽车的同时，在某种程度上也造成了一定的噪声污染。
其中，很重要的因素：第一，难于做到降噪的喷枪内部结构优化装置；第二，喷嘴处于长时间高温状态实现蒸汽连续性喷射较为复杂。
发明内容
本发明的主要目的在于提供一种喷嘴结构及具有其的喷枪，以解决现有技术中的喷枪存在噪声污染的问题。
为了实现上述目的，根据本发明的一个方面，提供了一种喷嘴结构，包括：喷嘴主体，喷嘴主体具有第一端和第二端，喷嘴主体的第一端开设有多个喷射孔；喷嘴主体包括喷射通道，喷射通道的一端与多个喷射孔连通，喷射通道的另一端与喷枪内的介质通道可连通地设置，以在喷射通道与介质通道连通时，使介质从多个喷射孔喷出；其中，多个喷射孔包括第一喷射孔和第二喷射孔，第二喷射孔绕第一喷射孔设置。
进一步地，第一喷射孔的中心线与喷射通道的中心线重合。
进一步地，第一喷射孔内设置有限流部，限流部为由第一喷射孔的内壁朝向远离第一喷射孔的中部的方向凹陷的凹陷部。
进一步地，凹陷部为弧形。
进一步地，限流部为多个，多个限流部依次连接设置。
进一步地，限流部沿第一喷射孔的延伸方向延伸。
进一步地，第二喷射孔为多个，多个第二喷射孔绕第一喷射孔均匀布置。
进一步地，第二喷射孔为圆形。
进一步地，喷射通道与第一喷射孔之间具有过渡连接面，第二喷射孔设置在过渡连接面上；其中，过渡连接面倾斜设置，过渡连接面具有与喷射通道的内壁连接的第三端，过渡连接面具有与第一喷射孔的内壁连接的第四端，第四端位于第三端靠喷嘴主体的第一端的一侧。
进一步地，喷嘴结构还包括：隔音罩，隔音罩包括连接部和罩体，连接部与喷嘴主体连接，罩体绕喷嘴主体的至少部分设置；罩体具有相对设置的第五端和第六端，罩体的第六端与连接部连接，罩体的第五端位于喷嘴主体的第一端远离喷嘴主体的第二端的一侧，以使多个喷射孔位于罩体内。
进一步地，罩体为锥形结构，锥形结构的小径端与连接部连接。
进一步地，罩体上设置有多个通孔，多个通孔位于喷嘴主体的第一端与罩体的第五端之间。
进一步地，喷嘴主体的外周面上设置有外螺纹，连接部具有与外螺纹相配适的内螺纹，连接部套设在喷嘴主体上，隔音罩通过外螺纹和内螺纹之间的配合与喷嘴主体连接。
根据本发明的另一方面，提供了一种喷枪，包括喷嘴结构，其中，喷嘴结构为上述的喷嘴结构。
本发明的喷嘴结构通过在喷嘴主体上设置多个喷射孔和喷射通道以实现与介质通道的连通，多个喷射孔开设在喷嘴主体的第一端，该喷嘴结构通过设置第一喷射孔和第二喷射孔，且第二喷射孔绕第一喷射孔设置，这样，可以通过第二喷射孔的射流增加第一喷射孔的掺混能力，破坏混合区的较大涡流，起到了减小噪声的目的。
附图说明
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了根据本发明的喷嘴结构的实施例的结构示意图；
图2示出了图1中的喷嘴结构的B-B截面处的剖视图；
图3示出了图1中的喷嘴结构的A处的局部放大图；以及
图4示出了根据本发明的喷枪的实施例的结构示意图。
其中，上述附图包括以下附图标记：
10、喷嘴主体；11、喷射通道；12、外螺纹；20、介质通道；30、第一喷射孔；31、限流部；40、第二喷射孔；50、过渡连接面；60、隔音罩；61、连接部；62、罩体；621、通孔。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指 明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
本发明提供了一种喷嘴结构，请参考图1至图4，包括：喷嘴主体10，喷嘴主体10具有第一端和第二端，喷嘴主体10的第一端开设有多个喷射孔；喷嘴主体10包括喷射通道11，喷射通道11的一端与多个喷射孔连通，喷射通道11的另一端与喷枪内的介质通道20可连通地设置，以在喷射通道11与介质通道20连通时，使介质从多个喷射孔喷出；其中，多个喷射孔包括第一喷射孔30和第二喷射孔40，第二喷射孔40绕第一喷射孔30设置。
本发明的喷嘴结构通过在喷嘴主体10上设置多个喷射孔和喷射通道11以实现与介质通道20的连通，多个喷射孔开设在喷嘴主体10的第一端，该喷嘴结构通过设置第一喷射孔30和第二喷射孔40，且第二喷射孔40绕第一喷射孔30设置，这样，可以通过第二喷射孔40的射流增加第一喷射孔30的掺混能力，破坏混合区的较大涡流，起到了减小噪声的目的。
具体实施时，第一喷射孔30的中心线与喷射通道11的中心线重合。
在本实施例中，第一喷射孔30内设置有限流部31，限流部31为由第一喷射孔30的内壁朝向远离第一喷射孔30的中部的方向凹陷的凹陷部。这样的设置可以提高第一喷射孔30的通流面积，进而降低气体的通过速度，实现了降噪的效果。此外，限流部31的设置方式可以实现对限流部31的定位，保证第一喷射孔30内的气流的稳定流动。
具体实施时，凹陷部为弧形。
优选地，限流部31为多个，多个限流部31依次连接设置。这样的设置较大程度的实现了降噪效果。
具体实施时，限流部31沿第一喷射孔30的延伸方向延伸。这样的设置较大程度的实现了降噪效果。
在本实施例中，第二喷射孔40为多个，多个第二喷射孔40绕第一喷射孔30均匀布置。
具体实施时，第二喷射孔40为圆形。这样的设置使得第二喷射孔40的射流进一步增加了第一喷射孔30的掺混能力，提高了降噪效果。
在本实施例中，喷射通道11与第一喷射孔30之间具有过渡连接面50，第二喷射孔40设置在过渡连接面50上；其中，过渡连接面50倾斜设置，过渡连接面50具有与喷射通道11的内壁连接的第三端，过渡连接面50具有与第一喷射孔30的内壁连接的第四端，第四端位于第三端靠喷嘴主体10的第一端的一侧。
在本实施例中，喷嘴结构还包括隔音罩60，隔音罩60包括连接部61和罩体62，连接部61与喷嘴主体10连接，罩体62绕喷嘴主体10的至少部分设置；罩体62具有相对设置的第五端和第六端，罩体62的第六端与连接部61连接，罩体62的第五端位于喷嘴主体10的第一端远离喷嘴主体10的第二端的一侧，以使多个喷射孔位于罩体62内。这样，隔音罩60的设置起到了隔热降噪的作用。
优选地，隔音罩60由塑料制成。优选地，隔音罩由ABS塑料制成。
具体实施时，罩体62为锥形结构，锥形结构的小径端与连接部61连接。
具体实施时，罩体62上设置有多个通孔621，多个通孔621位于喷嘴主体10的第一端与罩体62的第五端之间。这样的设置可以使得蒸汽从通孔621中喷出，进一步起到了降噪的作用。
为了实现隔音罩60与喷嘴主体10的连接，喷嘴主体10的外周面上设置有外螺纹12，连接部61具有与外螺纹12相配适的内螺纹，连接部61套设在喷嘴主体10上，隔音罩60通过外螺纹12和内螺纹之间的配合与喷嘴主体10连接。
在本实施例中，喷嘴主体10的第二端设置有安装段，安装段用于与喷枪内的连接结构连接，安装段插设在连接结构内，安装段具有凹槽，连接结构具有与凹槽相配适的凸出部，凸出部卡设在凹槽内，以使连接结构与连接结构连接。
本发明在通过对降噪理论分析的基础上设计出来的，第二喷射孔40射流增加第一喷射孔30的掺混能力，破坏混合区的较大涡流，起到减小噪声的目的，实现了降噪效果。
本发明还提供了一种喷枪，包括喷嘴结构，其中，喷嘴结构为上述实施例中的喷嘴结构。
本发明使蒸汽洗车机喷嘴喷射水流时达到了降噪的效果，改善了清洗环境，增强了设备体验感。
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：
本发明的喷嘴结构通过在喷嘴主体10上设置多个喷射孔和喷射通道11以实现与介质通道20的连通，多个喷射孔开设在喷嘴主体10的第一端，该喷嘴结构通过设置第一喷射孔30和第二喷射孔40，且第二喷射孔40绕第一喷射孔30设置，这样，可以通过第二喷射孔40的射流增加第一喷射孔30的掺混能力，破坏混合区的较大涡流，起到了减小噪声的目的。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
为了便于描述，在这里可以使用空间相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是，空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如，如果附图中的器件被倒置，则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位)，并且对这里所使用的空间相对描述作出相应解释。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种喷嘴结构，其特征在于，包括：
    喷嘴主体(10)，所述喷嘴主体(10)具有第一端和第二端，所述喷嘴主体(10)的第一端开设有多个喷射孔；所述喷嘴主体(10)包括喷射通道(11)，所述喷射通道(11)的一端与多个所述喷射孔连通，所述喷射通道(11)的另一端与喷枪内的介质通道(20)可连通地设置，以在所述喷射通道(11)与所述介质通道(20)连通时，使介质从多个所述喷射孔喷出；
    其中，所述多个喷射孔包括第一喷射孔(30)和第二喷射孔(40)，所述第二喷射孔(40)绕所述第一喷射孔(30)设置。
  2. 根据权利要求1所述的喷嘴结构，其特征在于，所述第一喷射孔(30)的中心线与所述喷射通道(11)的中心线重合。
  3. 根据权利要求1所述的喷嘴结构，其特征在于，所述第一喷射孔(30)内设置有限流部(31)，所述限流部(31)为由所述第一喷射孔(30)的内壁朝向远离所述第一喷射孔(30)的中部的方向凹陷的凹陷部。
  4. 根据权利要求3所述的喷嘴结构，其特征在于，所述凹陷部为弧形。
  5. 根据权利要求3所述的喷嘴结构，其特征在于，所述限流部(31)为多个，多个所述限流部(31)依次连接设置。
  6. 根据权利要求3所述的喷嘴结构，其特征在于，所述限流部(31)沿所述第一喷射孔(30)的延伸方向延伸。
  7. 根据权利要求3所述的喷嘴结构，其特征在于，所述第二喷射孔(40)为多个，多个所述第二喷射孔(40)绕所述第一喷射孔(30)均匀布置。
  8. 根据权利要求7所述的喷嘴结构，其特征在于，所述第二喷射孔(40)为圆形。
  9. 根据权利要求7所述的喷嘴结构，其特征在于，所述喷射通道(11)与所述第一喷射孔(30)之间具有过渡连接面(50)，所述第二喷射孔(40)设置在所述过渡连接面(50)上；其中，所述过渡连接面(50)倾斜设置，所述过渡连接面(50)具有与所述喷射通道(11)的内壁连接的第三端，所述过渡连接面(50)具有与所述第一喷射孔(30)的内壁连接的第四端，所述第四端位于所述第三端靠所述喷嘴主体(10)的第一端的一侧。
  10. 根据权利要求1所述的喷嘴结构，其特征在于，所述喷嘴结构还包括：
    隔音罩(60)，所述隔音罩(60)包括连接部(61)和罩体(62)，所述连接部(61)与所述喷嘴主体(10)连接，所述罩体(62)绕所述喷嘴主体(10)的至少部分设置；所述罩体(62)具有相对设置的第五端和第六端，所述罩体(62)的第六端与所述连接部(61)连接，所述罩体(62)的第五端位于所述喷嘴主体(10)的第一端远离所述喷嘴主体(10)的第二端的一侧，以使多个所述喷射孔位于所述罩体(62)内。
  11. 根据权利要求10所述的喷嘴结构，其特征在于，所述罩体(62)为锥形结构，所述锥形结构的小径端与所述连接部(61)连接。
  12. 根据权利要求10所述的喷嘴结构，其特征在于，所述罩体(62)上设置有多个通孔(621)，多个所述通孔(621)位于所述喷嘴主体(10)的第一端与所述罩体(62)的第五端之间。
  13. 根据权利要求10所述的喷嘴结构，其特征在于，所述喷嘴主体(10)的外周面上设置有外螺纹(12)，所述连接部(61)具有与所述外螺纹(12)相配适的内螺纹，所述连接部(61)套设在所述喷嘴主体(10)上，所述隔音罩(60)通过所述外螺纹(12)和所述内螺纹之间的配合与所述喷嘴主体(10)连接。
  14. 一种喷枪，包括喷嘴结构，其特征在于，所述喷嘴结构为权利要求1至13中任一项所述的喷嘴结构。
PCT/CN2019/097487 2018-12-17 2019-07-24 喷嘴结构及具有其的喷枪 WO2020125013A1 (zh)

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CN114918054B (zh) * 2022-04-21 2023-07-18 浙江工业大学 一种带有降噪孔的低噪声喷嘴

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