WO2022241925A1 - 一种全pp材质按头 - Google Patents

一种全pp材质按头 Download PDF

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Publication number
WO2022241925A1
WO2022241925A1 PCT/CN2021/104944 CN2021104944W WO2022241925A1 WO 2022241925 A1 WO2022241925 A1 WO 2022241925A1 CN 2021104944 W CN2021104944 W CN 2021104944W WO 2022241925 A1 WO2022241925 A1 WO 2022241925A1
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WO
WIPO (PCT)
Prior art keywords
wall
column
built
press head
liquid outlet
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Application number
PCT/CN2021/104944
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English (en)
French (fr)
Inventor
李再
赵秦波
Original Assignee
余姚市丹丹喷雾器有限公司
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Application filed by 余姚市丹丹喷雾器有限公司 filed Critical 余姚市丹丹喷雾器有限公司
Publication of WO2022241925A1 publication Critical patent/WO2022241925A1/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
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis

Definitions

  • the present application relates to the field of push heads for sprayers, in particular to a push head made of all PP material.
  • the atomizer head is a structure that disperses high-speed liquid into small droplets through nozzles or spray sheets.
  • the principle of spraying small liquid droplets according to the head of the atomizer is: to make the high-speed liquid form a swirling flow inside the atomizer, and then spray small liquid droplets from the mist outlet hole.
  • the size of the sprayed droplets depends on the flow rate of the swirl.
  • this application provides a press head made of all PP material.
  • An all-PP material press head provided by this application adopts the following technical scheme:
  • a press head made of all PP material including a press head body, a liquid outlet channel is opened on the side of the press head body, and a built-in column is arranged in the liquid outlet channel along the axial direction of the liquid outlet channel, and the outer wall of the built-in column is connected to the
  • the inner side wall of the liquid outlet channel is set at intervals, the built-in column is covered with a spray piece, the center of the spray piece is provided with a mist outlet hole, and the side of the spray piece facing the built-in column is located on both sides of the mist outlet hole.
  • a flow channel is formed between the two stoppers, and the mist outlet hole is located in the middle of the flow channel; the outer wall of the spray sheet is in contact with the inner wall of the liquid outlet channel, and the spray hole
  • the inner wall of the sheet is in contact with the outer wall of the built-in column, and four liquid outlet chambers are formed in a circumferential array between the inner wall of the spray sheet and the outer wall of the built-in column, and the side of the built-in column facing the stopper is in contact with the stopper.
  • the two ends of the flow channel are respectively located between two adjacent liquid outlet chambers.
  • the liquid enters the spray plate from the four liquid outlet chambers, and the liquids in the two adjacent liquid outlet chambers at the end of the flow channel collide and merge with each other to form a rapid flow, and then the rapid flow at both ends of the flow channel flows out.
  • the collision of the mist holes forms a swirl flow to spray atomized water droplets from the mist outlet.
  • the liquid undergoes two collisions, and the flow velocity of the swirling flow increases, thereby reducing the particle size of the small droplets when the mist is produced.
  • the side wall of the built-in column is provided with four second protrusions in a circumferential array, the second protrusions are in contact with the inner wall of the spray sheet, and two adjacent second protrusions are adjacent to the inner wall of the nozzle.
  • the liquid outlet cavity is formed between the inner side walls of the spray sheet.
  • a liquid cavity is formed between the interval between two adjacent second protrusions and the inner wall of the spray sheet, and the second protrusions press against the inner wall of the spray sheet to fix the spray sheet on the built-in column.
  • the inner side wall of the nozzle is provided with four first protrusions in a circumferential array, the first protrusions are in contact with the outer side wall of the built-in column, and two adjacent first protrusions are in contact with the inner wall.
  • the liquid outlet chamber is formed between the outer walls of the built-in columns.
  • a liquid cavity is formed between the space between two adjacent first protrusions and the outer wall of the built-in column, and the first protrusion is pressed against the outer wall of the built-in column to fix the spray sheet on the built-in column.
  • a liquid inlet channel is provided in the press head, and a constriction is communicated between the liquid inlet channel and the liquid outlet channel.
  • the constriction reduces the caliber of the liquid inlet channel entering the liquid outlet channel, thereby increasing the liquid flow rate from the liquid inlet channel into the liquid outlet channel.
  • a convex portion protrudes from the ends of the opposite sides of the two stoppers that are far away from each other.
  • the convex part can change the flow direction of the liquid flowing into the flow channel, so that the liquid on both sides of the mist outlet hole collides with each other at the mist outlet hole, increasing the flow rate of the swirling flow of the liquid at the mist outlet hole, so that the atomized The droplet size decreases.
  • the aperture of one end of the mist outlet located outside the spray sheet is smaller than the aperture of one end of the mist outlet located inside the spray sheet.
  • the side of the stopper facing the inner wall of the nozzle is a convex arc surface.
  • the press head body is covered with a shell, the inner side wall of the shell abuts the outer wall of the press head body and the spray sheet, and a through hole communicating with the mist outlet hole is opened on the shell .
  • the housing abuts against the spray sheet, thereby pressing the spray sheet against the built-in column.
  • the diameter of the through hole on the outer side of the housing is smaller than the diameter of the through hole on the inner side of the housing, and the inner wall of the through hole is tapered.
  • the small liquid droplets are sprayed out from the liquid outlet hole and then sprayed out from the through hole, and the setting of the tapered surface on the inner wall of the through hole can increase the spray angle of the small liquid droplet when the mist is produced.
  • a positioning hole is opened on the body of the press head, and a positioning post matched with the positioning hole is provided on the inner wall of the housing.
  • the positioning column cooperates with the positioning hole, so that the shell and the press head body are firmly cooperated.
  • the present application includes at least one of the following beneficial technical effects:
  • the liquid undergoes multiple collisions from the liquid outlet cavity to the mist outlet hole, and the flow velocity of the liquid swirl gradually increases before the mist is released, thereby reducing the particle size of the small droplets when the mist is released.
  • Fig. 1 is a schematic diagram of the overall structure of a press head made of PP material according to Embodiment 1 of the present application;
  • Fig. 2 is an exploded view of a press head made of PP material according to Embodiment 1 of the present application;
  • Fig. 3 is a cross-sectional view of a housing according to Embodiment 1 of the present application.
  • Fig. 4 is a cross-sectional view of a press head according to Embodiment 1 of the present application.
  • Fig. 5 is a schematic structural view of the bottom of the pressing head according to Embodiment 1 of the present application.
  • Fig. 6 is a front view of a side with a built-in column in the pressing head according to Embodiment 1 of the present application;
  • Fig. 7 is a front view of one side of the nozzle with a stopper in the embodiment of the present application.
  • Fig. 8 is a front view of the cooperation between the spray sheet and the built-in column in the first embodiment of the present application;
  • Fig. 9 is a schematic diagram of the flow direction of the liquid cooperating with the spray sheet and the built-in column in Embodiment 1 of the present application;
  • Fig. 10 is a front view of the side with the built-in column of the press head according to the second embodiment of the present application.
  • Figure 11 is the cooperation between the nozzle and the built-in column in the second embodiment of the present application
  • Figure 12 is a front view of the cooperation between the spray sheet and the built-in column in the second embodiment of the present application.
  • Fig. 13 is a schematic diagram of the flow direction of the liquid cooperating between the spray sheet and the built-in column in the second embodiment of the present application.
  • the embodiment of the present application discloses a press head made of all PP material.
  • the press head made of all PP material includes a press head body 1 , a nozzle 4 and a housing 13 .
  • a liquid outlet channel 2 is provided on one side of the press head body 1, and a built-in column 3 is coaxially connected to the liquid outlet channel 2, and an annular space is formed between the built-in column 3 and the liquid outlet channel 2.
  • the spray sheet 4 is sleeved on the built-in column 3 .
  • the spray sheet 4 is mainly composed of a disc and an integrally formed annular column around the edge of the disc.
  • the annular column of the spray sheet 4 is clamped in the annular space formed between the built-in column 3 and the liquid outlet channel 2, so that the annular column
  • the inner side wall of the ring is in contact with the outer side wall of the built-in column 3, and the outer side wall of the circular column is in contact with the inner side wall of the liquid outlet channel 2.
  • a mist outlet hole 5 is opened in the center of the spray sheet 4 .
  • the shell 13 is sleeved on the push head body 1, and the inner wall of the shell 13 abuts against the outer wall of the push head body 1, and the inner wall of the shell 13 also abuts against the axial end surface of the nozzle 4, and the spray
  • the sheet 4 is pressed tightly on the built-in column 3 to prevent the spray effect from being deteriorated caused by the loosening of the spray sheet 4 on the built-in column 3 .
  • a through hole 14 is opened on the same side of the housing 13 as the built-in column 3 , and when the housing 13 is sleeved on the press head body 1 , the mist outlet hole 5 is aligned with the through hole 14 .
  • the inner wall of the through hole 14 is tapered, and the diameter of one end of the through hole 14 outside the shell 13 is larger than the diameter of the end of the through hole 14 inside the shell 13 .
  • the conical surface setting of the through hole 14 can increase the angle of misting and expand the diffusion range of small droplets when misting.
  • the upper end surface of the press head body 1 is provided with two positioning holes 15, and the side of the housing 13 facing the upper end surface of the press head body 1 is integrally formed with a positioning column 16, and the positioning column 16 cooperates with the positioning hole 15.
  • the shell 13 is firmly connected on the press head body 1 .
  • a liquid inlet channel 18 inside the press head body 1 along the height direction of the press head body 1 the liquid outlet channel 2 is perpendicular to the liquid inlet channel 18, and the liquid inlet channel 18 is close to the inner side of one end of the liquid outlet channel 2
  • the wall is connected with the built-in column 3 , and the unconnected part of the built-in column 3 and the inner wall of the liquid outlet channel 2 forms a constriction 17 .
  • the constriction 17 reduces the caliber of the liquid flowing from the liquid inlet channel 18 into the liquid outlet channel 2 , thereby increasing the flow rate of the liquid entering the liquid outlet channel 2 .
  • the liquid inlet channel 18 is formed by the inner cavity of the tube body 19, and two reinforcing plates 20 are connected to the outer wall of the tube body 19, and the reinforcing plate 20 is connected to the inner wall of the press head body 1, thereby improving the tube body 19 structural strength.
  • the built-in column 3 is cylindrical.
  • the side of the spray plate 4 facing the built-in column 3 is integrally formed with two stoppers 6 , and the two stoppers 6 are located on both sides of the mist outlet 5 at intervals, and a flow channel 7 is formed between the two stoppers 6 .
  • the side of the stopper 6 facing the inner wall of the spray sheet 4 is an outwardly convex arc surface 12, and the opposite faces of the two stoppers 6 protrude with a convex portion 11 at the ends far away from each other. On the one hand, the convex portion 11 reduces the flow rate.
  • the convex part 11 can change the flow direction of the liquid flowing from the end of the flow channel 7 away from the convex part 11 to the convex part 11, so that the liquids on both sides of the mist outlet hole 5 flow relatively alternately to form a swirling flow.
  • the aperture of the end of the mist outlet hole 5 located outside the spray sheet 4 is smaller than the aperture diameter of the end of the mist outlet hole 5 located inside the spray sheet 4, thereby increasing the flow velocity of the swirling flow out of the mist outlet hole 5 and reducing the particle size of small droplets.
  • Four first bumps 9 are integrally formed on the inner side wall of the spray sheet 4 in a circumferential direction.
  • the first bump 9 is pressed against the outer wall of the built-in column 3 , thereby fixing the spray sheet 4 on the built-in column 3 , and the space between two adjacent first bumps 9 is formed with the outer wall of the built-in column 3 .
  • FIG. 9 it is a schematic diagram of the flow of liquid between the spray sheet 4 and the built-in column 3 .
  • the circular dotted line part is the cross-section of the built-in column 3
  • the cross-section of the built-in column 3 covers the two stoppers 6, and the arrows indicate the main flow direction of the liquid.
  • the atomization principle of the embodiment of the present application is as follows: the liquid flows from two adjacent liquid outlet chambers 8 located on both sides of the end of the flow channel 7 toward the end of the flow channel 7, where the end of the flow channel 7 converges and collides to generate a rapid flow, increasing the flow rate , the rapids entering from both ends of the flow channel 7 collide with the convex part 11 and change the flow direction. In the figure, the rapids collide with each other near the mist outlet 5 to form a swirling flow and increase the flow speed again, and finally flow out the atomized small water from the mist outlet 5. droplet.
  • the difference between this embodiment and the first embodiment is that the outer wall of the built-in column 3 has four integrally formed second bumps 10 in the circumferential array, while the inner wall of the nozzle 4 has no second bumps. a bump 9 .
  • a liquid outlet cavity 8 is formed between two adjacent second protrusions 10 and the inner wall of the spray sheet 4 .
  • FIG. 13 it is a schematic diagram of the flow of liquid between the spray sheet 4 and the built-in column 3 .
  • the principle is the same as that of the first embodiment, and will not be repeated here.

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Abstract

一种全PP材质按头，包括按头本体（1），按头本体（1）侧面开设有出液通道（2），出液通道（2）内沿出液通道（2）方向设有内置柱（3），内置柱（3）的外侧壁与出液通道（2）的内侧壁间隔设置，内置柱（3）上套设有喷片（4），喷片（4）中心设有出雾孔（5），喷片（4）朝向内置柱（3）的一侧位于出雾孔（5）两侧设有挡块（6），两个挡块（6）之间形成流道（7），出雾孔（5）位于流道（7）中部；喷片（4）的外侧壁与出液通道（2）的内侧壁抵接，喷片（5）内侧壁与内置柱（3）外侧壁部分抵接，喷片（4）内侧壁与内置柱（3）外侧壁之间形成四个周向阵列的出液腔（8），喷片（4）朝向挡块（6）的一面与挡块（6）抵接，流道（7）的两端分别位于相邻两个出液腔（8）之间。按头具有减小喷雾器出雾时小液滴粒径的效果。

Description

一种全PP材质按头 技术领域
本申请涉及喷雾器按头的领域，尤其是涉及一种全PP材质按头。
背景技术
雾化器按头是通过喷嘴或喷片将高速液体分散成小液滴的结构。
相关技术中，雾化器按头喷出的小液滴的原理为：使高速液体在其内部形成旋流，然后从出雾孔喷出小液滴。喷出的小液滴粒径取决于旋流的流速。
针对上述相关技术，雾化器按头出雾的小液滴粒径仍有可以减小的空间。
实用新型内容
为了减小喷雾器按头的出雾时小液滴的粒径，本申请提供一种全PP材质按头。
本申请提供的一种全PP材质按头采用如下的技术方案：
一种全PP材质按头，包括按头本体，所述按头本体侧面开设有出液通道，所述出液通道内沿出液通道轴向设有内置柱，所述内置柱的外侧壁与所述出液通道的内侧壁间隔设置，所述内置柱上套设有喷片，所述喷片中心设有出雾孔，所述喷片朝向内置柱的一侧位于出雾孔两侧设有挡块，两个所述挡块之间形成流道，所述出雾孔位于所述流道中部；所述喷片的外侧壁与所述出液通道的内侧壁抵接，所述喷片内侧壁与所述内置柱外侧壁部分抵接，且所述喷片内侧壁与所述内置柱外侧壁之间形成四个周向阵列的出液腔，内置柱朝向挡块的一面与挡块抵接，所述流道的两端分别位于 相邻两个出液腔之间。
通过采用上述技术方案，液体从四个出液腔进入喷片内，位于流道端部相邻两个出液腔的液体在流道端部碰撞并相互汇合形成急流，然后流道两端的急流朝出雾孔碰撞形成旋流从出雾口喷出雾化的小水滴。液体经过两次碰撞，旋流的流速增大，从而减小出雾时小液滴的粒径。
优选的，所述内置柱侧壁设有周向阵列的四个第二凸块，所述第二凸块与所述喷片内侧壁抵接，相邻两个所述第二凸块与所述喷片内侧壁之间形成所述出液腔。
通过采用上述技术方案，相邻两个第二凸块之间的间隔与喷片内壁之间形成出液腔，并且第二凸块与喷片内壁挤压，将喷片固定在内置柱上。
优选的，所述喷片内侧壁设有周向阵列的四个第一凸块，所述第一凸块与所述内置柱外侧壁抵接，相邻两个所述第一凸块与所述内置柱外侧壁之间形成所述出液腔。
通过采用上述技术方案，相邻两个第一凸块之间的间隔与内置柱外壁之间形成出液腔，并且第一凸块与内置柱外壁挤压，将喷片固定在内置柱上。
优选的，所述按头内设有进液通道，所述进液通道与所述出液通道之间连通有缩口。
通过采用上述技术方案，缩口减小了进液通道进入出液通道的口径，从而提高了进液通道进入出液通道的液体流速。
优选的，两个所述挡块相对的一侧相互远离的一端凸起有凸部。
通过采用上述技术方案，凸部可改变液体流入流道内的流向，使出雾 孔两侧的液体在出雾孔处相对交错碰撞，提高液体在出雾孔处旋流的流速，使雾化的小液滴粒径减小。
优选的，所述出雾孔位于喷片外的一端孔径小于出雾孔位于喷片内的一端孔径。
通过采用上述技术方案，液体从出雾孔内至出雾孔外流速增大，从而减小小液滴的粒径。
优选的，所述挡块朝向喷片内侧壁的侧面为外凸的弧面。
通过采用上述技术方案，液体从出液腔流经挡块朝向喷片内侧壁的侧壁时，由于弧面的设置，使液体流动更加顺畅。
优选的，所述按头本体外套设有外壳，所述外壳内侧壁抵接所述按头本体的外侧壁以及所述喷片，所述外壳上开设有与所述出雾孔相通的通孔。
通过采用上述技术方案，外壳抵接喷片，从而将喷片压紧在内置柱上。
优选的，所述通孔位于外壳外侧孔径小于通孔位于外壳内侧孔径，通孔的内壁呈锥面。
通过采用上述技术方案，小液滴从出液孔喷出后从通孔喷出，通孔内壁锥面的设置，可增大出雾时小液滴的喷出角度。
优选的，按头本体上开设有定位孔，所述外壳内侧壁设有与所述定位孔配合的定位柱。
通过采用上述技术方案，定位柱与定位孔配合，使外壳与按头本体配合牢固。
综上所述，本申请包括以下至少一种有益技术效果：
液体从出液腔至出雾孔经过多次碰撞，在出雾前液体旋流的流速逐渐 增大，从而减小出雾时小液滴的粒径。
附图说明
图1是本申请实施例一全PP材质按头的整体结构示意图；
图2是本申请实施例一全PP材质按头的爆炸图；
图3是本申请实施例一外壳的剖视图；
图4是本申请实施例一按头的剖视图；
图5是本申请实施例一按头底部的结构示意图；
图6是本申请实施例一按头具有内置柱一侧的正视图；
图7是本申请实施例一喷片具有挡块一侧的正视图；
图8是本申请实施例一喷片与内置柱配合的正视图；
图9是本申请实施例一喷片与内置柱配合的液体流向原理图；
图10是本申请实施例二按头具有内置柱一侧的正视图；
图11是本申请实施例二喷片与内置柱配合
图12是本申请实施例二喷片与内置柱配合的正视图；
图13是本申请实施例二喷片与内置柱配合的液体流向原理图。
附图标记说明：1、按头本体；2、出液通道；3、内置柱；4、喷片；5、出雾孔；6、挡块；7、流道；8、出液腔；9、第一凸块；10、第二凸块；11、凸部；12、弧面；13、外壳；14、通孔；15、定位孔；16、定位柱；17、缩口；18、进液通道；19、管体；20、加强板。
具体实施方式
以下结合附图1-13对本申请作进一步详细说明。
实施例一
本申请实施例公开一种全PP材质按头。参照图1和图2，全PP材质按头包括按头本体1、喷片4和外壳13。
参照图2，按头本体1的一侧开设有出液通道2，出液通道2内同轴连接有内置柱3，内置柱3与出液通道2之间形成环形的空间。喷片4套接于内置柱3上。喷片4主要由圆片和围绕圆片边缘一体成型的圆环柱构成，喷片4的圆环柱卡接在内置柱3与出液通道2之间形成环形的空间内，使圆环柱的内侧壁与内置柱3的外侧壁抵接，圆环柱的外侧壁与出液通道2的内侧壁抵接。喷片4的中心开设有出雾孔5。
参照图2，外壳13套接于按头本体1上，且外壳13的内侧壁与按头本体1的外壁抵接，外壳13的内侧壁还抵接在喷片4轴向的端面，将喷片4压紧在内置柱3上，防止喷片4在内置柱3上松动导致的喷雾效果变差。外壳13上与内置柱3同侧，开设有通孔14，当外壳13套接在按头本体1上时，出雾孔5与通孔14对齐。通孔14的内壁呈锥面，且通孔14位于外壳13外的一端孔径大于通孔14位于外壳13内的一端孔径。通孔14的锥面设置可增大出雾的角度，扩大出雾时小液滴的扩散范围。
结合图2和图3，按头本体1的上端面开设有两个定位孔15，外壳13内朝向按头本体1上端面的一面一体成型有定位柱16，定位柱16与定位孔15配合，使外壳13在按头本体1上连接稳固。
参照图4，按头本体1的内沿着按头本体1的高度方向开设有进液通道18，出液通道2与进液通道18垂直，进液通道18靠近出液通道2的一端部分内侧壁与内置柱3连接，内置柱3与出液通道2内侧壁未连接的部分形成缩口17。缩口17减小了液体从进液通道18流入出液通道2的口径， 从而提高液体进入出液通道2的流速。
参照图5，进液通道18由管体19的内腔构成，在管体19的外侧壁连接有两个加强板20，加强板20与按头本体1的内侧壁连接，从而提高管体19的结构强度。
参照图6，在本申请实施例中，内置柱3呈圆柱形。
参照图7，喷片4朝向内置柱3的一面一体成型有两个挡块6，两个挡块6分别间隔位于出雾孔5的两侧，两个挡块6之间形成流道7。挡块6朝向喷片4内侧壁的一侧为外凸的弧面12，两个挡块6相对的面在相互远离的一端凸起有凸部11，一方面，凸部11减小了流道7两端的口径，另一方面，凸部11可改变从流道7远离凸部11一端流至凸部11的液体流向，使出雾孔5两侧的液体相对交错流动，形成旋流。出雾孔5位于喷片4外的一端孔径小于出雾孔5位于喷片4内一端的孔径，从而提高旋流流出出雾孔5的流速，减小小液滴的粒径。喷片4的内侧壁周向整列一体成型有四个第一凸块9。
参照图8，第一凸块9与内置柱3的外侧壁压紧，从而将喷片4固定在内置柱3上，并且相邻两个第一凸块9之间与内置柱3外侧壁形成出液腔8。因此，内置柱3外侧壁与喷片4内侧壁通过第一凸块9部分抵接。
参照图9，为液体在喷片4与内置柱3之间流向的原理图。其中，圆形虚线部分为内置柱3的横截面，内置柱3的横截面覆盖两个挡块6，箭头为液体的主要流向。本申请实施例的雾化原理为：液体从位于流道7端部两侧的两个相邻出液腔8朝流道7端部流动在流道7端部汇合并碰撞产生急流，提高流速，从流道7两端进入的急流与凸部11碰撞并改变流向， 在图中急流在出雾孔5附近交错碰撞形成旋流并再次提高流速，最终从出雾孔5流出雾化的小液滴。
实施例二
参照图10和图11，本实施例与实施例一的不同之处在于，内置柱3的外侧壁周向阵列有四个一体成型的第二凸块10，而喷片4的内侧壁无第一凸块9。
参照图12，相邻两个第二凸块10与喷片4内侧壁之间形成出液腔8。
参照图13，为液体在喷片4与内置柱3之间流向的原理图。其原理与实施例一相同，不再赘述。
以上均为本申请的较佳实施例，并非依此限制本申请的保护范围，故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。

Claims (10)

  1. 一种全PP材质按头，其特征在于：包括按头本体(1)，所述按头本体(1)侧面开设有出液通道(2)，所述出液通道(2)内沿出液通道(2)方向设有内置柱(3)，所述内置柱(3)的外侧壁与所述出液通道(2)的内侧壁间隔设置，所述内置柱(3)上套设有喷片(4)，所述喷片(4)中心设有出雾孔(5)，所述喷片(4)朝向内置柱(3)的一侧位于出雾孔(5)两侧设有挡块(6)，两个所述挡块(6)之间形成流道(7)，所述出雾孔(5)位于所述流道(7)中部；所述喷片(4)的外侧壁与所述出液通道(2)的内侧壁抵接，所述喷片(4)内侧壁与所述内置柱(3)外侧壁部分抵接，且所述喷片(4)内侧壁与所述内置柱(3)外侧壁之间形成四个周向阵列的出液腔(8)，内置柱(3)朝向挡块(6)的一面与挡块(6)抵接，所述流道(7)的两端分别位于相邻两个出液腔(8)之间。
  2. 根据权利要求1所述的全PP材质按头，其特征在于：所述内置柱(3)侧壁设有周向阵列的四个第二凸块(10)，所述第二凸块(10)与所述喷片(4)内侧壁抵接，相邻两个所述第二凸块(10)与所述喷片(4)内侧壁之间形成所述出液腔(8)。
  3. 根据权利要求1所述的全PP材质按头，其特征在于：所述喷片(4)内侧壁设有周向阵列的四个第一凸块(9)，所述第一凸块(9)与所述内置柱(3)外侧壁抵接，相邻两个所述第一凸块(9)与所述内置柱(3)外侧壁之间形成所述出液腔(8)。
  4. 根据权利要求2或3所述的全PP材质按头，其特征在于：所述按头内设有进液通道(18)，所述进液通道(18)与所述出液通道(2)之间连通有缩口(17)。
  5. 根据权利要求2或3所述的全PP材质按头，其特征在于：两个所述 挡块(6)相对的一侧相互远离的一端凸起有凸部(11)。
  6. 根据权利要求2或3所述的全PP材质按头，其特征在于：所述出雾孔(5)位于喷片(4)外的一端孔径小于出雾孔(5)位于喷片(4)内的一端孔径。
  7. 根据权利要求2或3所述的全PP材质按头，其特征在于：所述挡块(6)朝向喷片(4)内侧壁的侧面为外凸的弧面(12)。
  8. 根据权利要求2或3所述的全PP材质按头，其特征在于：所述按头本体(1)外套设有外壳(13)，所述外壳(13)内侧壁抵接所述按头本体(1)的外侧壁以及所述喷片(4)，所述外壳(13)上开设有与所述出雾孔(5)相通的通孔(14)。
  9. 根据权利要求2或3所述的全PP材质按头，其特征在于：所述通孔(14)位于外壳(13)外侧孔径小于通孔(14)位于外壳(13)内侧孔径，通孔(14)的内壁呈锥面。
  10. 根据权利要求2或3所述的全PP材质按头，其特征在于：按头本体(1)上开设有定位孔(15)，所述外壳(13)内侧壁设有与所述定位孔(15)配合的定位柱(16)。
PCT/CN2021/104944 2021-05-19 2021-07-07 一种全pp材质按头 WO2022241925A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010076012A1 (de) * 2009-01-02 2010-07-08 Boehringer Ingelheim International Gmbh Bauteil und inhalator sowie verfahren zur herstellung eines bauteils
CN104755177A (zh) * 2012-10-31 2015-07-01 株式会社吉野工业所 喷射头以及设置有喷射头的容器
CN109789431A (zh) * 2016-08-04 2019-05-21 Rpc布兰姆拉格股份有限公司 手指喷射泵和用于喷射泵的喷头
CN211070537U (zh) * 2018-09-20 2020-07-24 (株) 三和 P&T 喷雾泵
CN111819006A (zh) * 2018-03-15 2020-10-23 株式会社衍宇 孔口及包括其的喷雾容器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010076012A1 (de) * 2009-01-02 2010-07-08 Boehringer Ingelheim International Gmbh Bauteil und inhalator sowie verfahren zur herstellung eines bauteils
CN104755177A (zh) * 2012-10-31 2015-07-01 株式会社吉野工业所 喷射头以及设置有喷射头的容器
CN109789431A (zh) * 2016-08-04 2019-05-21 Rpc布兰姆拉格股份有限公司 手指喷射泵和用于喷射泵的喷头
CN111819006A (zh) * 2018-03-15 2020-10-23 株式会社衍宇 孔口及包括其的喷雾容器
CN211070537U (zh) * 2018-09-20 2020-07-24 (株) 三和 P&T 喷雾泵

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