Gas-tight connection systems for suction equipment and suction nozzles for vacuum cleaners
A technology for connecting systems and suction equipment, applied to vacuum cleaners, suction nozzles, cleaning equipment, etc., can solve problems such as leaking, increase manufacturing costs, etc., and achieve the effect of compensating for length changes
Active Publication Date: 2020-08-28
威赛有限公司
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This increases the manufacturing cost
Furthermore, there is a risk of leaks not only between the locking sleeve and the hose end of the spiral hose, but also between the locking sleeve and the form-fitting connection of the counterpart
Method used
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Embodiment Construction
[0017] exist figure 1 and figure 2 The connection system shown in is intended for use with a suction device which sucks in air from the surrounding environment and discharges the air back into the surrounding environment and which is sufficiently gas-tight for the suction device. The connection end of the coiled hose 1 engages in the connection opening 2 of the connection element 3 . The coiled hose 1 has a spring-elastic coil 4 and a flexible corrugated wall 5 . The spiral 4 is preferably made of spring steel wire and is embedded in the wall 5 . The contour of the wall 5 extends undulating around the spiral 4 and is made of a plastic commonly used for suction hoses (for example polyurethane). The connection opening 2 has an internal thread 6 for positive engagement with the coil 4 of the coiled hose 1 . At least one thread turn of the screw part 4 is screwed into the internal thread 6 of the connection opening 2 .
[0018] The pitch of the internal thread 6 has a differ...
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The invention relates to a gas-tight connection system for a suction device between a coiled hose having a spring-elastic coil and a connection opening in a connection element and a suction nozzle for a vacuum cleaner and a flexible wavy wall. The joint opening has an internal thread for positive engagement with a helix, into which at least one coil of the helix is screwed, and the pitch of the internal thread is defined in the unloaded state of the helix. The pitch of the thread has different values, so that the section of the helix screwed into the internal thread is deformed and the correspondingly stretched and compressed section of the helical hose rests with a sealing effect on the thread face of the internal thread. The suction nozzle has a bottom plate, a suction pipe connection and a hose made of the spiral hose, the connection element of the bottom plate and / or the suction pipe connection has a connection opening with an internal thread, and between the spiral hose and the connection opening Provide the airtight connection system described.
Description
technical field [0001] The invention relates to a gas-tight connection system for a suction device between a helical hose and a connection opening in a connection element, wherein the helical hose has a spring-elastic spiral and a flexible corrugation of the wall. The gas-tight connection system is designed for a suction device which is equipped with a fan and sucks in air at ambient pressure and discharges the air again into the surroundings. The term “suction device” covers in particular a suction nozzle and a suction pipe for a vacuum cleaner, to which a flexible hose in the form of a spiral hose is connected. Background technique [0002] Various possibilities for fastening flexible hoses are known to those skilled in the art from practice. The hose ends of the coiled hose are often plugged onto a round nipple and fastened there using fitting means, such as hose clamps. This type of fastening of the spiral hose is also not satisfactory. If the fit between the tube ou...
Claims
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IPC IPC(8): A47L9/24A47L9/02
CPCA47L9/02A47L9/24A47L9/242A47L9/244A47L9/248G06Q30/00G06Q30/0623G06Q30/0631
Inventor H-J·施托伊特纳
Owner 威赛有限公司