MXPA97006791A - Handling of triple handle seal for automat cleaning valve - Google Patents

Abstract

The present invention relates to a device for cleaning with water of a toilet including a body, an inlet and an outlet in that body, a valve seat in the body in the flow path between the inlet and the outlet, means of valve in the body movable towards and away from the valve seat to control the flow of water from the inlet to the outlet, a lever assembly to cause movement of the valve means from a closed position in the valve seat to a position open apart from the valve seat, the lever assembly includes a female socket attached to the body, a lever mounted on the socket for a pivoting movement on its axis, a piston placed partly inside the female socket and in contact with the lever , the movement of rotation of the lever on its axis causes the axial movement of the piston, a portion of the piston is positioned to make contact with the valve means to cause the movement Of these, spring means guide the lever to the lever, a bushing attached to the socket and having a central bore within which the plunger moves, a sealing member extending axially along the plunger and attached to the hub. and which forms therewith a seal, the sealing member has a central passage, the piston being positioned within the central passage of the sealing member in a static position and during axial movement of the piston, the passage of the sealing member has three sealing lobes extending circumferentially inwardly. which are in sealing contact with the piston at axially spaced locations thereof, one of the sealing lobes is at one end of the sealing member, the lobes define two cavities separated from each other, with lubricant in the cavities, the sealing member has projection extending radially inward at one end thereof, an interlocking groove in the hub, with the inward projection of the sealing member extending into the cavity for attaching the sealing member to the bushing, the bushing has an axially extending conical projection, with an inner portion of the sealing member conforming to and in contact with the projection axially extending conical, the first halves of the circumferential sealing lobes extending inwardly are directly adjacent and in contact with the end of the conical portion of the bu

Description

HANDLING OF TRIPLE HANDLE SEAL FOR AUTOMATIC CLEANING VALVE DESCRIPTION OF THE INVENTION The present invention relates to automatic cleaning valves or cleaning water meters as are commonly mentioned that are used to provide a measured quantity of water for washing a toilet, the assignee of the present application, Sloan Valve Company of Franklin Park Illinois sells several types of cleaning water meters arranged for manual operation, one of which is sold under the name of ROYAL. The present invention is specifically directed to the handle assembly for manually operating the cleaning water meter and more particularly to an improved seal to prevent leakage of water from the cleaning water meter body through the handle assembly. The handle includes a socket that is mounted on the body of the cleaning water meter and a handle that pivotally moves to the socket. The movement of the handle causes a spring-guided diver to enter the body of the cleaning water meter and the cleaning water meter of the ROYAL class, welding a relief valve allowing the emptying of the pressure chamber to Open the valve so that the cleaning water can pass from the inlet to the outlet. A seal is placed on the diver and is mounted on the bushing that stops the diver. The seal has a plurality of sealing lobes extending circumferentially inwardly and axially spaced, which are in contact with the diver at axially spaced locations. The lobes define intermediate recesses and there is a lubricant within the recesses of the seal. The present invention relates to bathing devices and particularly to cleaning water meters and more specifically to an improved handle seal for that cleaning water meter. A first purpose of the invention is to provide a handle assembly having an improved seal, preventing leakage from the cleaning water meter body through the assembly assembly of the handle. Another purpose is a handle assembly for the described use in which there is a plurality of spaced sealing points with recesses for lubrication. Another purpose is an assembly assembly that is simple in construction and reliable in operation. Other objects will be presented in the description that follows in the drawings and in the claims. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross section illustrating a cleaning or drag water meter of the type described with the handle shown therein; Figure 2 is an enlarged cross-section illustrating the assembly of the handle; and Figure 3 is an enlarged cross-section of the seal. The handle assembly of the present invention will be described in connection with a wash water meter of the type sold by Sloan Valve Company under the trademark ROYAL. The invention is not to be limited to this particular type of cleaning or trailing water meter and is applicable to any trawling water meter in which the movement of the handle causes an axial movement of a diver to trigger a loosening valve. The trawl water meter includes a body 10 having an inlet connection 12 and an outlet connection 14. A diaphragm assembly marked with the digit 16 includes a diaphragm 18 peripherally detained to the body 10 by an internal cover 20. The diaphragm it is seated on a shoulder 22 at the upper end of the body 10 and is pressed in that position by the inner cover 20. An outer cover 24 is screwed onto the body to stop the inner cover in position. The diaphragm assembly 16 is closed on a valve seat 26 formed at the upper end of a barrel 28. The barrel 28 forms the conduit connecting the valve seat with the outlet 14. The diaphragm 16 includes a relief valve 30 having a rod 32 extending downwardly carrying a movable sleeve 34. The sleeve 34 is positioned to make contact with the valve. a diver 36 when operated by a handle 38. The diaphragm assembly 16 in addition to the diaphragm 18 and the loosening valve 30, includes a retention disc 40, a replenishment ring 44, and a flow control ring 46. Further details of the diaphragm assembly are presented in U.S. Patent 5, 505, 427 also owned by the Sloan Valve Company. The valve assembly of the present invention includes a socket 48 which is supported by a handle coupling 50 to an externally threaded boss 52 that forms a part of the wash or pull valve body 10. The socket 48 has an opening 54 through it. which handle 38 extends. The handle 38 has a spherical portion 56 which is positioned within the opening 54 and offers a pivotal movement of the handle relative to the socket. Directly adjacent to the spherical portion 56 is an outwardly directed flange 58 of the handle that is seated within the socket 48. The diver 36 has a flat end 60 which is in plane contact with the flat end 62 of the handle 38. When the handle 38 is pivotally moved within the opening 54, causes an inward axial movement of the diver 36 to contact the sleeve of the release valve 34 to release the release valve and operate the water valve. A bushing 66 is screwed into the interior of the socket 48 and has a circumferential cavity 68 within which a coil spring 70 is disposed which normally guides the diver 36 to the inoperative position shown in the drawing, the bushing 66 has a pitch 72. inside which the diver 36 moves in an axial direction to operate the cleaning or drag water valve. The bushing 66 has an axial extension, indicated by the numeral 74, with a tapered exterior 76. Mounted on the axial extension 74 of the bushing is a seal member 78. This seal member 78 has an inwardly directed circumferential projection 80 that is extends within a recess 82 in the bushing projection 74, thereby attaching the sealing element to the bushing. The sealing element 78 has a plurality, in this case three seal lobes 84, 86 and 88 extending inwardly and circumferentially, each of which is in sealing contact with the exterior of the diver 36. The lobes 84, 86 88 define between them a pair of circumferential recesses 90 and 92, recesses containing a lubricant suitable for lubricating the diver to facilitate their movement between the operating and non-functional positions. The distance between the lobes 84 and 88 is greater than the stroke of the diver 84, in order to ensure that the diver is always in contact with the sealing lobe 84 to protect the shaft against a foreign material. The sealing lobe 88 has a cutting edge so that it functions as a scraper, preventing foreign material from entering the recesses where there is lubricant, when operating, the pivotal movement of the handle 38 causes its end surface 62 to move the diver against the guide spring 70, in an axially inward direction where the release valve 30 contacts and tilts. This empties the pressure in the chamber above the release valve, causing the diaphragm to rise from the seat 26 allowing passage free flow from the inlet 12 to the outlet 14. The sealing element 78, has particular advantages in that it provides a plurality of sealing points separated between its interior and the movable diver. The lobes 84, 86 and 88 provide such spaced sealing areas and recesses 90, 92 intermediately provide the containers for the lubricant causing smooth movement of the diver between their resting and operating positions, the combination of multiple sealing points with lubricant intermediate it provides a complete seal and prevents any leakage of water from inside the body of the cleaning water meter out through the handle assembly. While the preferred form of the invention has been described, it is obvious to the technician that changes and modifications are numerous without departing from the main idea of the invention.

Claims (6)

1. REIVINDICATION S. l.-A device for the cleaning water of a toilet including a body, an entrance and an exit in that body in the flow path between the entrance and the exit, moving valve means in the body moving towards and away of the valve seat to control the flow of water from the entrance to the exit. a handle assembly to cause movement of the valve from a closed position to an open position separate from the valve seat, the handle assembly includes a socket attached to the body, a handle mounted on the base for a pivotal movement, a diver placed partly inside the socket and in contact with the handle, the pivotal movement of the handle causes the axial movement of the diver, a portion of the diver is positioned to make contact with the valve means causing the movement of the mass, spring means guide the diver towards the handle, a bushing attached to the base and having a central hole into which the diver moves; a sealing member attached to the hub and forming a seal therewith, the seal member having a central passage, with the diver positioned within the central passage of the sealing member, the passage of the sealing member having a plurality of circumferentially extending sealing lobes inwards and are spaced apart from each other, which are in sealing contact with the diver at axially spaced locations thereof, the lobes define at least one recess between them, and lubricant exists within at least one of the recesses.
2. 2. Toilet water cleaning device according to claim 1, characterized in that the sealing member extends axially along the diver, with one of the sealing lobes extending circumferentially inward being at one end of the sealing member.
3. 3. Toilet water cleaning device, according to claim 2, characterized in that there are three circumferentially extending sealing lobes, which define two spaced recesses containing lubricant.
4. 4. Toilet water cleaning device according to claim 3, characterized in that one of the sealing lobes extending circumferentially inwardly is directly adjacent and in contact with a portion of the bushing.
5. 5. Toilet water cleaning device, according to claim 4, characterized in that the sealing member has a projection extending radially inward at one end thereof, an interblocking slot on the bushing, with the projection towards inside the sealing member penetrating the recess to join the sealing member to the bushing.
6. 6. The toilet cleaning water device according to claim 4, characterized in that the bushing has an axially extending tapered projection, with an inner portion of the sealing member formed and in contact with the axially extending tapered projection . R E S U M N A device for the cleaning or draining water of a toilet that has a body with an inlet and an outlet is presented. There is a valve seat in the body in the flow path between the inlet and the outlet and a valve in the body that is movable towards and away from the valve seat to control the flow of water through the water control device for toilet washing, A handle assembly serves to cause movement of the valve towards and away from the valve seat including a socket attached to the body and a handle mounted on the socket so that it can perform a pivotal movement. A diver is partially placed inside the socket and is in contact with the handle. The pivotal movement of the handle causes the axial movement of the diver with a portion thereof being placed in contact with the valve to cause the movement of the same. There is a spring to guide or force the diver towards the handle. A bushing is attached to the socket and has a central bore into which the diver moves. A sealing member is attached to the diver and forms a seal or seal therewith. The sealing member has a central passage with the diver positioned within that central passage, the sealing member has a plurality of sealing lobes extending circumferentially inwardly and spaced apart, which are in sealing contact with the diver at axially spaced locations.The lobes define at least one intermediate recess and there is lubricant in at least one of the recesses.