TWM620481U

TWM620481U - Diversion device of mist spraying container

Info

Publication number: TWM620481U
Application number: TW110207453U
Authority: TW
Inventors: 黃清森
Original assignee: 鈺創美學顧問有限公司
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-01

Abstract

一種噴霧容器之導流裝置，該噴霧容器係具有一瓶體、一噴頭及一吸管，該噴頭具有一導流管，該導流裝置係組接於該導流管與該吸管之間，該導流裝置包含有一連接管、一單向閥及一止逆球，該連接管係與該導流管組接，其內緣形成數個倒流通道與順流通道；該單向閥係組設於連接管與導流管之間；該止逆球係組設於該連接管中且位於該吸管的端口上；當該噴霧容器呈倒立狀態時，液體由該等倒流通道進入連接管、單向閥、導流管最後噴出，由於該導流裝置主要係由該連接管、單向閥及止逆球組合而成，因此在構造上甚為簡單，不但組裝簡便，更進一步可降低整體的製造成本。 A diversion device for a spray container. The spray container has a bottle body, a spray head and a suction tube. The spray head has a diversion tube. The diversion device is assembled between the diversion tube and the suction tube. The diversion device includes a connecting pipe, a one-way valve and a non-return ball. The connecting pipe is connected to the diversion pipe, and its inner edge forms several backflow channels and downstream channels; the one-way valve is assembled Between the connecting pipe and the draft tube; the non-return ball is assembled in the connecting pipe and located on the port of the suction tube; when the spray container is in an upside-down state, the liquid enters the connecting pipe, the single tube through the backflow channels The guide valve and the guide tube are finally sprayed out. Since the guide device is mainly composed of the connecting tube, the one-way valve and the non-return ball, it is very simple in structure. It is not only easy to assemble, but also can reduce the overall cost. manufacturing cost.

Description

噴霧容器之導流裝置 Diversion device of spray container

本新型是有關於一種噴霧容器之導流裝置，特別是指一種利用單向閥控制液體單向流動，使噴霧容器倒立時仍可將液體向外導流噴出之導流裝置。 This new model relates to a diversion device for a spray container, in particular to a diversion device that uses a one-way valve to control the one-way flow of liquid, so that the liquid can be diverted and sprayed out even when the spray container is inverted.

噴霧容器在日常生活中是常見的品項，諸如應用在化妝水或防蚊液的噴霧，而為了方便不同角度均可噴出液體，尤其是噴霧容器倒立時，因此噴霧容器中導流的路徑需有不同的設計，以申請號102217887「噴霧容器之導流裝置」、證書號M459031「改良型雙向止逆閥」及PCT公開號WO99/29586「正/倒立注入容器」為例，均有倒立噴霧的倒流設計，然而前述兩案所揭露的技術內容，在元件結構的設計上均較為複雜，不僅在組裝上較為麻煩不便，製造成本上也會增加，故習用技術存在構造複雜及製造成本較高的缺失。 Spray containers are common items in daily life, such as sprays used in lotions or anti-mosquitoes. In order to facilitate the spraying of liquid from different angles, especially when the spray container is upside down, the diversion path in the spray container needs to be There are different designs. Take application No. 102217887 "Diversion Device for Spray Container", Certificate No. M459031 "Improved Two-way Check Valve" and PCT Publication No. WO99/29586 "Inverted/Inverted Injection Container" as examples, all have inverted spray However, the technical content disclosed in the two previous cases is more complicated in the design of the component structure, which is not only more troublesome and inconvenient in assembly, but also increases in manufacturing costs. Therefore, the conventional technology has complex structures and higher manufacturing costs. Missing.

因此，本新型之目的即在提供一種構造較為簡單的噴霧容器之導流裝置。 Therefore, the object of the present invention is to provide a spray container with a simpler structure.

於是，本新型噴霧容器之導流裝置，該噴霧容器係具有一可容裝液體之瓶體、一組設於該瓶體上之噴頭，以及一吸管，該噴頭具有一按壓部，以及一由該按壓部向下延伸進入該瓶體內之導流管，該導流裝置係組接於該導流管與該吸管之間，用以將該瓶體中的液體導流至該噴頭噴出，該導流裝置包含有一連接管、一單向閥及一止逆球，該連接管係用以連接該導流管與該吸管，而具有一上管段、一中管段及一下管段，該上管段係與該導流管上端部位相互組接，其內緣形成數個倒流通道，可供該瓶體內的液體流入該中管段中，該下管段係與該吸管連接，其內緣形成數個順流通道；該單向閥係組設於該中管段中，可供經由該等倒流通道進入中管段的液體單向通過而進入該導流管；該止逆球係組設於該下管段中且位於該吸管的端口上，用以適時防止液體回流進入該吸管或由該中管段進入下管段；在該噴霧容器正立狀態下，當按壓該按壓部時，該瓶體中的液體經由該吸管推開該止逆球，並由該等順流通道進入該中管段，再經由該導流管導出該瓶體外部，當該噴霧容器呈倒立狀態時，該瓶體中的液體由該等倒流通道進入該中管段中，並且通過該單向閥再經該導流管最後由該噴頭噴出，此時該止逆球係阻擋於該下管段遠離吸管的一端，以防止液體進入下管段；由於該導流裝置主要係由該連接管、單向閥及止逆球組合而成，因此在構造上甚為簡單，不但組裝簡便，更進一步可降低整體的製造成本。 Therefore, the guide device of the new type spray container has a bottle body that can contain liquid, a set of spray heads arranged on the bottle body, and a straw. The spray head has a A pressing portion, and a diversion tube extending downward from the pressing portion into the bottle body, and the diversion device is assembled between the diversion tube and the suction tube to divert the liquid in the bottle body When the nozzle ejects, the diversion device includes a connecting pipe, a one-way valve and a check ball. The connecting pipe is used to connect the diversion pipe and the straw, and has an upper pipe section, a middle pipe section and a lower pipe. Pipe section, the upper pipe section is assembled with the upper end of the draft tube, and its inner edge forms several backflow channels for the liquid in the bottle to flow into the middle pipe section. The lower pipe section is connected with the suction tube, and the inner The edge forms a number of downstream passages; the one-way valve system is set in the middle pipe section, allowing the liquid that enters the middle pipe section through the reverse flow passages to pass one-way and enter the draft tube; the check ball system is set up In the lower tube section and on the port of the straw, it is used to prevent liquid from flowing back into the straw or from the middle tube section into the lower tube section in a timely manner; in the upright state of the spray container, when the pressing part is pressed, the bottle body The liquid in the bottle pushes the non-return ball through the straw, enters the middle pipe section through the downstream channels, and then is led out of the bottle body through the draft tube. When the spray container is in an inverted state, the bottle body The liquid enters the middle pipe section through the backflow channels, and then passes through the one-way valve and then passes through the draft tube and is finally ejected from the nozzle. At this time, the non-return ball is blocked by the end of the lower pipe section away from the suction pipe to prevent Liquid enters the lower pipe section; since the diversion device is mainly composed of the connecting pipe, the one-way valve and the non-return ball, it is very simple in structure, not only easy to assemble, but also can reduce the overall manufacturing cost.

1:導流裝置 1: Diversion device

2:噴霧容器 2: spray container

21:瓶體 21: Bottle body

22:噴頭 22: Nozzle

221:按壓部 221: pressing part

222:導流管 222: draft tube

223:上組接段 223: upper group connection section

224:銜接段 224: Convergence

225:下組接段 225: next group connection section

23:吸管 23: straw

3:連接管 3: connecting pipe

31:上管段 31: Upper pipe section

311:倒流通道 311: Backflow Channel

32:中管段 32: Middle section

33:下管段 33: Down pipe section

331:順流通道 331: Downstream Channel

4:單向閥 4: Check valve

41:套環 41: Loop

42:環翼 42: Ring Wing

5:止逆球 5: check ball

第1圖是本新型之第一較佳實施例噴霧容器與導流裝置的立體分解圖。 Figure 1 is a three-dimensional exploded view of the spray container and the guide device of the first preferred embodiment of the present invention.

第2圖是本新型之第一較佳實施例噴霧容器與導流裝置的組裝剖視圖。 Figure 2 is an assembled cross-sectional view of the spray container and the diversion device of the first preferred embodiment of the present invention.

第3圖是本新型之第一較佳實施例導流裝置之部分立體剖視圖。 Figure 3 is a partial perspective cross-sectional view of the first preferred embodiment of the flow guiding device of the present invention.

第4圖是本新型之第一較佳實施例噴霧容器與導流裝置倒立的部分組合剖視圖。 Figure 4 is a partial cross-sectional view of the spray container and the deflector device of the first preferred embodiment of the present invention standing upside down.

第5圖是第4圖的液體流動示意圖。 Fig. 5 is a schematic diagram of the liquid flow in Fig. 4.

第6圖是第5圖的部分放大示意圖。 Fig. 6 is a partially enlarged schematic diagram of Fig. 5.

第7圖是本新型之第二較佳實施例導流裝置之導流管與單向閥的部分立體剖視圖。 Figure 7 is a partial perspective cross-sectional view of the diversion tube and the one-way valve of the diversion device of the second preferred embodiment of the present invention.

第8圖是本新型之第二較佳實施例噴霧容器與導流裝置倒立的部分組合剖視圖。 Figure 8 is a partial cross-sectional view of the spray container and the deflector device of the second preferred embodiment of the present invention standing upside down.

第9圖是本新型之第三較佳實施例導流裝置之導流管與單向閥的部分立體剖視圖。 Figure 9 is a partial perspective cross-sectional view of the diversion tube and the one-way valve of the diversion device of the third preferred embodiment of the present invention.

第10圖是本新型之第三較佳實施例噴霧容器與導流裝置倒立的部分組合剖視圖。 Figure 10 is a partial cross-sectional view of the spray container and the deflector device of the third preferred embodiment of the present invention standing upside down.

參閱第1~6圖，本新型之第一較佳實施例導流裝置1是與該噴霧容器2相互配合使用，該噴霧容器2係具有一可容裝液體之瓶體21、一組設於該瓶體21上之噴頭22，以及一吸管23，該噴頭22具有一按壓部221，以及一由該按壓部221向下延伸進入該瓶體21內之導流管222，由於該按壓部221係為一般習用之結構，非本新型之特徵所在，故在此不贅述其細部構造，該導流管222具有一與該按壓部221連接之上組接段223，一由該上組接段223向下延伸之銜接段224，以及一由該銜接段224再向下延伸之下組接段225。 Referring to Figures 1 to 6, the first preferred embodiment of the present invention is that the deflector device 1 of the present invention is used in conjunction with the spray container 2. The spray container 2 has a bottle body 21 that can contain liquid, and a set of The spray head 22 on the bottle body 21, and a straw 23, the spray head 22 has a pressing part 221, and a diversion tube 222 extending downward from the pressing part 221 into the bottle body 21, due to the pressing part 221 It is a general conventional structure, which is not the feature of the present invention, so its detailed structure will not be repeated here. The draft tube 222 has an upper assembly section 223 connected to the pressing portion 221, and an upper assembly section 223 connected to the upper assembly section. 223 a connecting section 224 extending downward, and a connecting section 225 extending downward from the connecting section 224.

該導流裝置1設置於該導流管222與該吸管23之間，用以將瓶體21中的液體導流至噴頭22噴出，該導流裝置1包含有一連接管3、一單向閥4及一止逆球5；該連接管3具有一上管段31、一中管段32及一下管段33，該上管段31係與該導流管222的上組接段223相互組結且接近該按壓部221，其內緣形成數個倒流通道311，可供瓶體21內的液體流入該中管段32中，該中管段32可供該銜接段224與該下組接段225穿設其中，該下管段33係與該吸管23連接，其內緣形成數個順流通道331。 The diversion device 1 is arranged between the diversion tube 222 and the suction tube 23 to divert the liquid in the bottle body 21 to the spray head 22 for ejection. The diversion device 1 includes a connecting pipe 3 and a one-way valve 4 and a check ball 5; the connecting pipe 3 has an upper pipe section 31, a middle pipe section 32 and a lower pipe section 33. The upper pipe section 31 is assembled with the upper connecting section 223 of the draft tube 222 and is close to the The inner edge of the pressing portion 221 forms several backflow channels 311 for the liquid in the bottle body 21 to flow into the middle tube section 32, and the middle tube section 32 for the connecting section 224 and the lower assembly section 225 to pass through, The lower pipe section 33 is connected to the suction pipe 23, and a plurality of downstream channels 331 are formed on the inner edge thereof.

該單向閥4係組設於該中管段32中，而具有一套設於該下組接段225上之套環41，以及一由該套環41向外擴徑形成之環翼42，該環翼42係與該中管段32觸抵，該套環41與該環翼42係可擋止流經該等順流通道331的液體通過，但可供經由該等倒流通道311進入中管段32的液體單向通過，更具體而言，該通過該等倒流通道311的液體係可推移該環翼42離開該中管段32，令液體通過並且進入該導流管222的下組接段225。 The one-way valve 4 is assembled in the middle pipe section 32, and has a collar 41 set on the lower assembly section 225, and a ring wing 42 formed by the collar 41 expanding outwards, The ring wing 42 is in contact with the middle pipe section 32, and the collar 41 and the ring wing 42 can prevent the liquid flowing through the downstream channels 331 from passing through, but can enter the middle pipe section through the backflow channels 311 32. The liquid passes through in one direction. More specifically, the liquid system passing through the backflow channels 311 can push the ring wing 42 away from the middle pipe section 32, allowing the liquid to pass through and enter the lower connecting section 225 of the guide tube 222. .

該止逆球5係組設於該下管段33中且位於該吸管23的端口上，用以適時防止液體回流進入該吸管23或由該中管段32進入下管段33。 The non-return ball 5 is assembled in the lower pipe section 33 and located on the port of the suction pipe 23 to prevent liquid from flowing back into the suction pipe 23 or from the middle pipe section 32 into the lower pipe section 33 in a timely manner.

正常使用狀態下，也就是噴霧容器2處於正立的態樣，當按壓該按壓部221時，瓶體21中的液體經由吸管23推開該止逆球5，而由該等順流通道331進入該中管段32，由於此為一般噴霧容器2內液體的導流路徑，在圖式中並未顯示液體推開止逆球5的狀態，此時該中管段32中的液體受到該單向閥4的擋止，而僅局限位於如第2圖所示中管段32的下方部位，再經由該導流管222的下組接段225、銜接段224及上組接段223導出瓶體21外部，當該噴霧容器2如第4圖所示呈倒立狀態且按壓該按壓部221時該瓶體21中的液體由該等倒流通道311進入該中管段32中，並且如第5、6圖所示推移該單向閥4的環翼42，使該環翼42與中管段32間出現間隙，液體通過該單向閥4後由該導流管222的下組接段225導流最後由該噴頭22噴出，在此同時該止逆球5係阻擋於該下管段33遠離吸管23的一端，以防止中管段32內的少量液體及空氣進入下管段33。 In the normal use state, that is, when the spray container 2 is in an upright position, when the pressing portion 221 is pressed, the liquid in the bottle body 21 pushes the non-return ball 5 through the straw 23, and the downstream channels 331 Entering the middle pipe section 32, since this is the diversion path of the liquid in the general spray container 2, the state of the liquid pushing away the check ball 5 is not shown in the figure. At this time, the liquid in the middle pipe section 32 is subjected to the unidirectional The stop of the valve 4 is only limited to the lower part of the pipe section 32 as shown in Figure 2, and the bottle body 21 is led out through the lower connecting section 225, the connecting section 224 and the upper connecting section 223 of the guide tube 222 Externally, when the spray container 2 is in an upside-down state as shown in Figure 4 and the pressing portion 221 is pressed, the liquid in the bottle 21 Enter the middle pipe section 32 from the backflow channels 311, and push the ring wing 42 of the one-way valve 4 as shown in Figures 5 and 6, so that a gap appears between the ring wing 42 and the middle pipe section 32, and the liquid passes through the single After the valve 4, the flow is guided by the lower connecting section 225 of the guide tube 222 and finally ejected by the nozzle 22. At the same time, the non-return ball 5 is blocked by the end of the lower tube section 33 away from the suction tube 23 to prevent the middle tube section. A small amount of liquid and air in 32 enters the lower pipe section 33.

本新型噴霧容器2之導流裝置1主要係由該連接管3、單向閥4及止逆球5組合而成，因此在構造上甚為簡單，不但組裝簡便，更進一步可降低整體的製造成本，值得說明的是，由於該連接管3的上管段31接近該按壓部221的設計，當噴霧容器2在第5圖所示倒立的狀態下，就算瓶體21中僅存少量的液體，也可輕易地被汲取而由噴頭22噴出，在倒立使用時存在較佳的便利性。 The guide device 1 of the new spray container 2 is mainly composed of the connecting pipe 3, the one-way valve 4 and the non-return ball 5. Therefore, the structure is very simple, not only is easy to assemble, but also can reduce the overall manufacturing Cost, it is worth noting that because the upper pipe section 31 of the connecting pipe 3 is close to the design of the pressing part 221, when the spray container 2 is in the upside-down state as shown in Figure 5, even if there is only a small amount of liquid in the bottle body 21, It can also be easily drawn and ejected from the spray head 22, which has better convenience when used upside down.

值得說明的是，該單向閥4的型態並不侷限於單一設計，例如該單向閥4亦可如第7、8圖所示第二實施例的態樣，該單向閥4同樣具有一套環41，以及一由該套環41擴徑形成之環翼42，當該噴霧容器2如第8圖所示呈倒立狀態且液體由該等倒流通道311進入該中管段32中，並且推移該環翼42，使液體通過該單向閥4進入下組接段225中，最後由噴頭22噴出。 It is worth noting that the type of the one-way valve 4 is not limited to a single design. For example, the one-way valve 4 can also be the same as the second embodiment shown in Figures 7 and 8, and the one-way valve 4 is the same It has a sleeve ring 41 and a ring wing 42 formed by expanding the diameter of the sleeve ring 41. When the spray container 2 is in an upside-down state as shown in Fig. 8 and the liquid enters the middle pipe section 32 through the backflow channels 311, And push the ring wing 42 so that the liquid enters the lower assembly section 225 through the one-way valve 4, and is finally ejected from the spray head 22.

請參閱第9、10圖，本新型第三實施例與前二實施例不同點在於該單向閥4具有一組設於該中管段32內緣之套環41，以及一由該套環41徑縮延伸之環翼42，該環翼42係抵觸於該下組接段225上，該通過該等倒流通道311的液體係可推移該環翼42離開該下組接段225外緣，令液體通過並且進入該導流管222的下組接段225內部最後由該噴頭22噴出。 Please refer to Figures 9 and 10, the third embodiment of the present invention is different from the first two embodiments in that the one-way valve 4 has a set of collars 41 arranged on the inner edge of the middle pipe section 32, and a set of collars 41 A ring wing 42 with a reduced diameter and extending, the ring wing 42 is against the lower assembly section 225, and the liquid system passing through the backflow channels 311 can push the ring wing 42 away from the outer edge of the lower assembly section 225, so that The liquid passes through and enters the inside of the lower connecting section 225 of the guide tube 222 and is finally ejected by the spray head 22.

1:導流裝置 1: Diversion device

2:噴霧容器 2: spray container

21:瓶體 21: Bottle body

22:噴頭 22: Nozzle

221:按壓部 221: pressing part

222:導流管 222: draft tube

223:上組接段 223: upper group connection section

224:銜接段 224: Convergence

225:下組接段 225: next group connection section

23:吸管 23: straw

3:連接管 3: connecting pipe

31:上管段 31: Upper pipe section

311:倒流通道 311: Backflow Channel

32:中管段 32: Middle section

33:下管段 33: Down pipe section

331:順流通道 331: Downstream Channel

4:單向閥 4: Check valve

41:套環 41: Loop

42:環翼 42: Ring Wing

5:止逆球 5: check ball

Claims

一種噴霧容器之導流裝置，該噴霧容器係具有一可容裝液體之瓶體、一組設於該瓶體上之噴頭，以及一吸管，該噴頭具有一按壓部，以及一由該按壓部向下延伸進入該瓶體內之導流管，該導流裝置係組接於該導流管與該吸管之間，用以將該瓶體中的液體導流至該噴頭噴出，該導流裝置包含有：一連接管，其係用以連接該導流管與該吸管，而具有一上管段、一中管段及一下管段，該上管段係與該導流管上端部位相互組接，其內緣形成數個倒流通道，可供該瓶體內的液體流入該中管段中，該下管段係與該吸管連接，其內緣形成數個順流通道；一單向閥，其係組設於該中管段中，可供經由該等倒流通道進入中管段的液體單向通過而進入該導流管；以及一止逆球，其係組設於該下管段中且位於該吸管的端口上，用以適時防止液體回流進入該吸管或由該中管段進入下管段；在該噴霧容器正立狀態下，當按壓該按壓部時，該瓶體中的液體經由該吸管推開該止逆球，並由該等順流通道進入該中管段，再經由該導流管導出該瓶體外部，當該噴霧容器呈倒立狀態時，該瓶體中的液體由該等倒流通道進入該中管段中，並且通過該單向閥再經該導流管最後由該噴頭噴出，此時該止逆球係阻擋於該下管段遠離吸管的一端，以防止液體進入下管段。 A flow guiding device for a spray container. The spray container has a bottle body that can contain liquid, a set of spray heads arranged on the bottle body, and a straw. The spray head has a pressing part and a pressing part. A diversion tube extending downwards into the bottle body. The diversion device is assembled between the diversion tube and the suction tube to divert the liquid in the bottle body to the spray head for ejection. The diversion device Contains: a connecting tube, which is used to connect the draft tube and the suction tube, and has an upper tube section, a middle tube section and a lower tube section, the upper tube section is assembled with the upper end of the draft tube, and the inner edge A number of reverse flow channels are formed for the liquid in the bottle to flow into the middle tube section. The lower tube section is connected to the suction tube, and its inner edge forms a number of downstream channels; a one-way valve is set in the middle tube section. In the pipe section, the liquid that enters the middle pipe section through the backflow channels can pass in one direction to enter the draft tube; and a check ball, which is assembled in the lower pipe section and located on the port of the suction pipe for Timely prevent liquid from flowing back into the straw or from the middle tube section into the lower tube section; in the upright state of the spray container, when the pressing part is pressed, the liquid in the bottle body pushes the non-return ball through the straw and is The downstream channels enter the middle tube section, and then exit the bottle body through the deflector. When the spray container is in an inverted state, the liquid in the bottle body enters the middle tube section through the backflow channels and passes through The one-way valve is finally ejected from the nozzle through the guide tube. At this time, the non-return ball is blocked at the end of the lower pipe section away from the suction pipe to prevent liquid from entering the lower pipe section.

依據申請專利範圍第1項所述之噴霧容器之導流裝置，其中，該導流管具有一與該按壓部連接之上組接段，一由該上組接段向下延伸進入該中管段之銜接段，以及一由該銜接段向下延伸之下組接段，該上管段係與該上組接段相互組結，該下組接段係與該單向閥組接，以令該單向閥位於該中管段與下組接段之間。 According to the diversion device of the spray container described in item 1 of the scope of patent application, wherein the diversion tube has an upper assembly section connected with the pressing part, and an upper assembly section extends downward into the middle pipe section The connecting section, and a lower connecting section extending downward from the connecting section, the upper pipe section is assembled with the upper connecting section, and the lower connecting section is connected with the one-way valve so that the The one-way valve is located between the middle pipe section and the lower connecting section.

依據申請專利範圍第2項所述之噴霧容器之導流裝置，其中，該單向閥具有一套設於該下組接段上之套環，以及一由該套環向外擴徑形成之環翼，該環翼係與該中管段觸抵，該通過該等倒流通道的液體係可推移該環翼離開該中管段，令液體通過並且進入該導流管的下組接段。 According to the guide device of the spray container described in item 2 of the scope of patent application, the one-way valve has a sleeve set on the lower assembly section, and a sleeve formed by expanding the diameter of the sleeve outward The ring wing is in contact with the middle pipe section, and the liquid system passing through the backflow channels can push the ring wing away from the middle pipe section, allowing the liquid to pass through and enter the lower connecting section of the draft tube.

依據申請專利範圍第2項所述之噴霧容器之導流裝置，其中，該單向閥具有一組設於該中管段內緣之套環，以及一由該套環徑縮延伸之環翼，該環翼係抵觸於該下組接段上，該通過該等倒流通道的液體係可推移該環翼離開該下組接段外緣，令液體通過並且進入該導流管的下組接段內部。 According to the guide device of the spray container described in item 2 of the scope of patent application, the one-way valve has a set of collars arranged on the inner edge of the middle pipe section, and a ring wing that is reduced and extended by the collar, The ring wing is against the lower connecting section, and the liquid system passing through the backflow channels can push the ring wing away from the outer edge of the lower connecting section, allowing the liquid to pass through and enter the lower connecting section of the draft tube internal.