| 摘要 |
A garden sprayer has a main body, a shaft, a positioning knob, a control member and a seal sleeve. Since the control member is driven by the rotation of the shaft, the user does not need to keep pressing the sprayer to output water. When the user needs to take a break, he or she can jus hook a gripping loop on any protruding object. With a connecting tube and the connecting hole, the assembly can be finished with any hand tools. |
| 主权项 |
1. A garden sprayer comprising: a main body, a shaft, a positioning knob, a control member and a seal sleeve, wherein:
the main body has a handle and an inner chamber, the handle and the inner chamber are connected with each other and both covered by a protective cover; a first O-ring is disposed at a front end of the inner chamber such that the handle and the inner chamber together form the main body; the inner chamber utilizes a spray head base to pivotably connect to a spray head, a gripping loop disposed on the handle and the inner chamber; an upper end of the handle is provided with a water controlling chamber and the water controlling chamber is connected to a water inlet channel of the handle and a water outlet channel of the inner chamber; a guide slot is provided on an outer peripheral of the water controlling chamber, and two ends of the guiding slot are respectively provided with a stopping rib; a positioning member is disposed between the spray head and the spray head base; the shaft is provided with a guide opening with a predetermined angle on a side of an outer periphery, a through hole starts at a bottom end of the guide opening and ends at a side of the shaft, such that rotation of the shaft controls coverage of the through hole; an end of the shaft is provided with a circular slot jacketed with a second O-ring, and another end is provided with a connecting tube having a reduced diameter; the circular slot extends to form a first stopping edge, and two opposite inner faces of the stopping edge are respectively provided with a first positioning protrusion, the connecting tube provided with a flexible slot in a longitudinal direction and an engaging protrusion on at least two opposite portions on an outer periphery; an end of the positioning knob is provided with an enlarged second stopping edge and another end is provided with a connecting hole; an inner face of the stopping edge is provided with two second opposite positioning protrusions; an engaging aperture is respectively disposed above and below the connecting hole; the positioning knob further comprises a circular slot jacketed with a third O-ring; the control member has two rotatable arms and a switch connected to the two rotatable arms, each rotatable arm is provided with a connecting aperture, and two opposite engaging slots are disposed on an edge of the connecting aperture;
wherein the seal sleeve is placed in the main body and positioned between the water controlling chamber and the inner chamber; the two rotatable arms of the control member respectively make contact with two outer sides of the water controlling chamber such that the switch is positioned and rotatable in the guiding slot; the connecting tube of the shaft is placed through the connecting aperture of one of the rotatable arms and passes through the water controlling chamber to engage with the connecting hole of the positioning knob; when the connecting hole pushes against the engaging protrusion, the connecting tube tapers inwardly due to the flexible slot; when the engaging protrusion is aligned with the engaging aperture, the connecting tube is urged back to cause the engaging protrusion to engage with the engaging aperture; meanwhile, the first stopping edge of the shaft engages with the second stopping edge of the positioning knob in the connecting aperture of the two rotatable arms, and the first and second positioning protrusions engages with the engaging slot of the control member, such that the shaft and the positioning knob are interlinked with each other. |
