Valve structure with elastic anti-leakage member

Abstract

A valve structure with an elastic anti-leakage member includes a spool, a seat, and a switch. The spool body has at least one inner notch formed on the side of the spool body, and the inner notch has at least one elastic anti-leakage member installed in the inner notch. The spool is contained inside the seat, and the elastic anti-leakage member is located in the inner chamber of the inner notch and has a surface elastically abutting the internal cavity wall of the inner chamber.

Claims

1. A valve comprising: a spool comprising: a spool body; a spool shaft extended upwardly from the spool body; an upper elastic anti-leakage ring; a lower elastic anti-leakage ring; a vertical member; and an elastic anti-leakage member; wherein the spool defines two openings with a diversion port connecting the two openings, a fixing protrusion comprising an exterior of the diversion port, and an inner notch with the elastic anti-leakage member therein; and the upper elastic anti-leakage ring is located above the two openings; and the lower elastic anti-leakage ring is located below the two openings; a seat comprising: an inner chamber comprising an internal cavity wall; an inlet portion and an outlet portion disposed on a side of the seat; a top through hole formed at the top of the seat; wherein the spool is located inside the inner chamber; the inlet portion and the outlet portion corresponds to the diversion port; the upper elastic anti-leakage ring and the lower elastic anti-leakage ring abut the internal cavity wall; and the spool extends through the top through hole; and a switch comprising: a positioning hole and fixing hole located at the bottom of the switch, wherein the spool shaft is secured to the fixing hole; wherein the inner notch is defined by the spool body, the fixing protrusion, and the vertical member that extends from the diversion port to the spool body; an axis of the vertical member intersects the diversion port; the inner notch comprises a diversion port space on either side of the diversion port and a vertical member space on either side of the vertical member; the elastic anti-leakage member defines a recess that corresponds to the fixing protrusion and the vertical member; and the elastic anti-leakage member substantially fully occupies the inner notch.

2. The valve according to claim 1, wherein the outlet portion is disposed at an edge of the seat; and when the spool shaft is rotated by actuation of the switch, the diversion port can be aligned with the outlet portion.

3. The valve according to claim 1, wherein the spool body defines two inner notches, and each inner notch has one elastic anti-leakage member therein.

4. The valve according to claim 1, wherein the elastic anti-leakage member comprises an upper projection and two lower projections wherein the upper projection abuts the fixing protrusion and the two lower projections abut the vertical member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a partial perspective exploded view of a valve structure with an elastic anti-leakage member of the present invention;

(2) FIG. 2 is a detailed partial perspective exploded view of a valve structure with an elastic anti-leakage member of the present invention;

(3) FIG. 3 is a side sectional view of a valve structure with an elastic anti-leakage member of the present invention;

(4) FIG. 4 is a schematic view of a valve structure with an elastic anti-leakage member having an inner notch and the elastic anti-leakage member installed on a side of a spool and three outlet portions disposed on a side of a seat in accordance with a first preferred embodiment of the present invention;

(5) FIG. 5 is a side sectional view of a valve structure with an elastic anti-leakage member having an inner notch and the elastic anti-leakage member installed on a side of a spool and three outlet portions disposed on a side of a seat in accordance with the first preferred embodiment of the present invention;

(6) FIG. 6 is a schematic view of a valve structure with an elastic anti-leakage member having an inner notch and the elastic anti-leakage member installed on a side of a spool and two outlet portions disposed on a side of a seat in accordance with a second preferred embodiment of the present invention;

(7) FIG. 7 is a side sectional view of a valve structure with an elastic anti-leakage member having an inner notch and the elastic anti-leakage member installed on a side of a spool and two outlet portions disposed on a side of a seat in accordance with the second preferred embodiment of the present invention;

(8) FIG. 8 is an exploded view of a conventional water outlet valve structure; and

(9) FIG. 9 is a side sectional view of a conventional water outlet valve structure.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(10) With reference to FIGS. 1 to 3 for a partial exploded view, a detailed exploded view and a side sectional view of a valve structure with an elastic anti-leakage member of the present invention respectively, the valve structure comprises the following elements:

(11) A spool 10 includes a spool body 11, a spool shaft 12 extended upwardly in the Y-axis direction from the spool body 11, a diversion port 110 inwardly communicated with a side of the spool body 11 in the Z-axis direction, an upper ring groove 111 and a lower ring groove 112 formed at edges proximate to upper and lower sides of the spool body 11 respectively, an upper elastic anti-leakage ring 111A contained in the upper ring groove 111, a lower elastic anti-leakage ring 112A contained in the lower ring groove 112, an inner notch 113 inwardly and concavely formed on both sides of the spool body 11 in the X-axis direction, and an elastic anti-leakage member 114 contained in the inner notch 113, wherein the inner notch 113 has a positioning and fixing protrusion 113A, and the elastic anti-leakage member 114 has a latch defied as a recess 114A, and the latch of the elastic anti-leakage member 114 defined as the recess 114A is latched to the positioning and fixing protrusion 113A of the inner notch 113. The fixing protrusion 113A comprises the exterior of the diversion port 110. A vertical member 115, whose axis intersects with that of the diversion port, extending from the bottom of the inner notch and attached to the diversion port 110 can also be seen in FIGS. 2-7. The inner notch 113 comprises diversion port space on either side of the diversion port and the vertical member space on either side of the vertical member 115, as can be seen in FIGS. 2-7. The elastic anti-leakage member 114 comprises an upper projection and two lower projections, wherein the upper projection abuts the diversion port 110 the lower projections abut the vertical member 115.

(12) A seat 20 includes an inner chamber 21 with an internal cavity wall 210, an inlet portion 22 and an outlet portion 23 disposed at an edge of the seat 20, and a top through hole 24 formed at the top of the seat 20, wherein the inner chamber 21 is provided for containing and installing the spool 10, and the inlet portion 22 and the outlet portion 23 are configured to be opposite to the diversion port 110 of the spool body 11, and the internal cavity wall 210 of the inner chamber 21 and the upper elastic anti-leakage ring 111A and the lower elastic anti-leakage ring 112A of the upper ring groove 111 and the lower ring groove 112 of the spool body 11 abut against each other by a linear contact, and the internal cavity wall 210 of the inner chamber 21 and the elastic anti-leakage member 114 at the inner notch 113 of the spool body 11 abut against each other by a surface contact, and the spool 10 of the top through hole 24 is passed out from the spool shaft 12.

(13) A switch 30 includes a positioning and fixing hole 31 formed at the bottom of the switch 30 and provided for passing out the spool shaft 12 of the spool 10 from the top through hole 24 of the seat 20 and fixing the spool shaft 12 to the positioning and fixing hole 31.

(14) The valve structure with an elastic anti-leakage member in accordance with the present invention is formed by the aforementioned elements.

(15) With reference to FIGS. 1 to 3 for a partial exploded view, a detailed exploded view and a side sectional view of a valve structure with an elastic anti-leakage member of the present invention respectively, the spool 10 is contained and installed in the inner chamber 21 of the seat 20, and the diversion port 110 of the spool body 11 is configured to be corresponsive to the inlet portion 22 and the outlet portion 23 of the seat 20, and the upper elastic anti-leakage ring 111A and the lower elastic anti-leakage ring 112A of the upper ring groove 111 and the lower ring groove 112 of the spool body 11 elastically abut the internal cavity wall 210 of the inner chamber 21 of the seat 20 by a linear contact, and the elastic anti-leakage member 114 of the inner notch 113 of the spool body 11 elastically abut the internal cavity wall 210 of the inner chamber 21 of the seat 20 by a surface contact, and the spool shaft 12 of the spool 10 is passed out from the top through hole 24 at the top of the seat 20 and fixed to the positioning and fixing hole 31 of the switch 30. In summation, the upper elastic anti-leakage ring 111A and lower elastic anti-leakage ring 112A of the upper ring groove 111 and the lower ring groove 112 elastically abut the internal cavity wall 210 of the inner chamber 21 of the seat 20 to achieve the anti-leakage effect, and the elastic anti-leakage member 114 of the inner notch 113 of the spool body 11 elastically abut the internal cavity wall 210 of the inner chamber 21 of the seat 20 to achieve the normal water anti-leakage effect, so that a good seal can be maintained at conditions including a water temperature approaching 0 degree or a water pressure above 80 PSI. When the switch 30 is rotated and turned on, the diversion port 110 of the spool body 11 is configured to be corresponsive to the inlet portion 22 and the outlet portion 23 of the seat 20 for the control of inputting water. When the switch 30 is rotated and turned off, the elastic anti-leakage member 114 of the inner notch 113 of the spool 10 is configured to be corresponsive to the inlet portion 22 and the outlet portion 23 of the seat 20 for the control of stopping the water, and the water pressure will push the elastic anti-leakage member 114 configured to be corresponsive to the inlet portion 22 of the seat 20, so that the elastic anti-leakage member 114 configured to be corresponsive to the outlet portion 23 of the seat 20 further abuts against the outlet portion 23 to improve the overall sealing effect effectively. Even if there is a small foreign substance (such as hair) entering between the elastic anti-leakage member 114 and the internal cavity wall 210, the elastic anti-leakage member 114 still can maximize the sealing effect effectively to provide an excellent anti-leakage function.

(16) With reference to FIGS. 4 and 5 for the schematic view and the side sectional view of a valve structure with an elastic anti-leakage member having an inner notch and an elastic anti-leakage member installed on a side of a spool and three outlet portions disposed on a side of a seat in accordance with the first preferred embodiment of the present invention and FIGS. 6 and 7 for the schematic view and the side sectional view of a valve structure with an elastic anti-leakage member having an inner notch and an elastic anti-leakage member installed on a side of a spool and three outlet portions disposed on a side of a seat in accordance with the first preferred embodiment of the present invention respectively, the overall structure is substantially the same as that as shown in FIGS. 1 to 3 with an exception that an inner notch 113 and an elastic anti-leakage member 114 are disposed on a side of the spool 10, and an inlet portion 22 and two outlet portions 23 are disposed at relative position of the seat 20, or the inner notch 113 and the elastic anti-leakage member 114 are disposed on a side of the spool 10, and an inlet portion 22 and an outlet portion 23 are configured to be 90 with respect to the seat 20. After the spool shaft 12 of the spool 10 is rotated, controlled and linked by the switch 30, the diversion port 110 of the spool 10 is selectively configured to be corresponsive to the outlet portion 23 of the seat 20, so as to fit the application to different valve structures to improve the practicality of the present invention.

(17) While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims. In addition, the present invention complies with patent application requirements, and is thus duly filed for patent application.