A fluid guiding device (1) includes a ventilating pipe (10), a barrel (20) and a holding frame (30). The ventilating pipe includes two spring levers (154). A handling tab (156) and an engaging tab (158) extend from a free end of each spring lever, respectively outwardly and inwardly. The barrel for
A fluid guiding device (1) includes a ventilating pipe (10), a barrel (20) and a holding frame (30). The ventilating pipe includes two spring levers (154). A handling tab (156) and an engaging tab (158) extend from a free end of each spring lever, respectively outwardly and inwardly. The barrel forms two jagged members (262) thereon. Each jagged member forms a plurality of parallel teeth (264). The engaging tabs are selectively engaged with corresponding teeth respectively to position the barrel to the ventilating pipe when the barrel is moved to a desired location in the ventilating pipe. The engaging tabs escape from teeth by pulling the handling tabs outwardly to allow the barrel to be movable on the ventilating pipe. The holding frame is secured to the barrel for holding a fluid-driving device thereon.
대표청구항▼
We claim: 1. A fluid guiding device comprising: a ventilating pipe comprising a pair of spring levers integrally formed on the ventilating pipe, a handling tab and an engaging tab extending from a free end of each of the spring levers, respectively outwardly and inwardly; a slidable barrel forming
We claim: 1. A fluid guiding device comprising: a ventilating pipe comprising a pair of spring levers integrally formed on the ventilating pipe, a handling tab and an engaging tab extending from a free end of each of the spring levers, respectively outwardly and inwardly; a slidable barrel forming two jagged members thereon, each of the jagged members comprising a plurality of parallel teeth; and a holding frame positioned to the slidable barrel, adapted for holding a fluid-driving device thereon; wherein the engaging tabs are selectively engaged with corresponding teeth respectively to position the slidable barrel to the ventilating pipe when the slidable barrel is moved to a desired location in the ventilating pipe and wherein the engaging tabs are escapable from the corresponding teeth by pulling the handling tabs outwardly to allow the slidable barrel to be movable on the ventilating pipe. 2. The fluid guiding device of claim 1, wherein at least one guiding groove is defined in the ventilating pipe, and wherein at least one rib is formed on the slidable barrel and is capable of sliding along an axial direction in the at least one guiding groove. 3. The fluid guiding device of claim 1, wherein the ventilating pipe comprises a tubular portion engaging with the slidable barrel. 4. The fluid guiding device of claim 3, wherein a pair of bulges is symmetrically and outwardly formed on the tubular portion and wherein the spring levers are extended from the bulges, respectively. 5. The fluid guiding device of claim 4, wherein two slots are defined in the bulges respectively, and wherein the jagged members are accommodated in the slots respectively. 6. The fluid guiding device of claim 3, wherein the ventilating pipe further comprises a funneled portion having a small end in integration with the tubular portion and a large end remote from the small end. 7. The fluid guiding device of claim 6, wherein a planar abutting flange is extended from a free edge of the large end and a hermetical pad is provided on the abutting flange. 8. The fluid guiding device of claim 1, wherein a plurality of blocks is formed at an end of the slidable barrel outside the ventilating pipe, and wherein a plurality of hooks is extended perpendicularly from the holding frame, the hooks are locked with the blocks of the slidable barrel so that the holding frame is securely positioned to the slidable barrel. 9. The fluid guiding device of claim 1, wherein a plurality of catches is extended perpendicularly from the holding frame adapted for catching the fluid-driving device therebetween. 10. A fluid guiding device comprising: a fluid inlet portion; a fluid outlet portion; and a central portion fluidly communicated with the inlet portion and the outlet portion, the central portion comprising a pipe having a spring lever extended therefrom and a barrel defining a plurality of teeth thereon, an engaging tab and a handling tab perpendicularly extending from the spring lever in opposite directions, the engaging tab being selectively engaged with any one of the teeth to position the barrel to the pipe and being escapable from said any one of the teeth by pulling the handling tab to allow the barrel to be movable relative to the pipe. 11. The fluid guiding device of claim 10, wherein the teeth are parallel to each other and arranged on a line parallel to an axial direction of the barrel. 12. The fluid guiding device of claim 10, wherein two bulges each defining a slot therein are symmetrically raised from the pipe and two jagged members forming the teeth thereon are formed on the barrel, and wherein the jagged members are received in the slots of the bulges. 13. The fluid guiding device of claim 10, wherein at least one guiding groove is defined in the pipe, and wherein at least one rib is formed on the barrel and slidably received in the at least one guiding groove for preventing the barrel from rotating relative to the pipe. 14. A fan duct device for use in a computer enclosure defining a ventilating port, comprising: a ventilating pipe having an end portion adapted for attaching to the enclosure around the ventilating port and a tubular portion extending from the end portion and forming a cantilevered spring lever having an engaging tab thereon; a barrel slidably mounted on the ventilating pipe, having a jagged member thereon, the engaging tab being able to lock with the jagged member at a selected position of the jagged member so that a length of the barrel combined with the ventilating pipe is adjustable; a holding frame adapted for holding a fan thereon, being fixed on the barrel so that the holding frame can move with the barrel; and a hermetical pad; wherein the end portion of the ventilating pipe has a small end connecting with the tubular portion and a large end opposite the small end and adapted for attaching to the enclosure; and wherein the hermetical pad is attached to the large end of the end portion of the ventilating pipe. 15. The fan duct device of claim 14, wherein the tubular portion of the ventilating pipe forms a groove therein, and the barrel forms a rib thereon, the rib slidably engaging in the groove. 16. The fan duct device of claim 15, wherein the engaging tab is formed at a free end of the spring lever and extends inwardly, the free end of the spring lever further comprising a handling tab extending outwardly, the handling tab being adapted for receiving a force for driving the engaging tab to leave away from the jagged member. 17. The fan duct device of claim 14, wherein the jagged member has a plurality of teeth formed thereon, each tooth having an inclined surface and a horizontal surface, the inclined surface being located closer to the holding frame than the horizontal surface. 18. The fan duct device of claim 16, wherein the holding frame has a catch extending in a direction away from the barrel, the catch being adapted for locking with the fan, and a hook engaging with the barrel.
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이 특허에 인용된 특허 (10)
Moore Michael A. ; Barboza Scott M., Air duct starting collar with quick mounting means.
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