Abstract
A wall-mounted check valve structure comprises a base and a connecting assembly. A flow tunnel is arranged at center of the base. An inner threading section is arranged at top of the flow tunnel. A first sealing sheet is arranged at top of the inner threading section. The connecting assembly includes a main body and a fixing seat. A connecting section is arranged in the main body. A stop surface is arranged at a lower side of the connecting section. The fixing seat has a head end and an outer threading section. Two sides of the fixing seat respectively have a plurality of water holes and a sealing piston. The sealing piston has a shielding section and a linking section. The linking section inserts into one of the water holes arranged at center of the fixing seat and the shielding section shields other water holes to make water flow unidirectionally.
Claims
1. A wall-mounted check valve structure, comprising a base for connecting to a wall and a connecting assembly for connecting a faucet, characterized in that: a flow tunnel is arranged at a center of the base, an inner threading section is arranged at a top portion of the flow tunnel, a first sealing sheet is arranged at a top portion of the inner threading section; the connecting assembly includes a main body and a fixing seat, a connecting section is arranged in the main body for providing a faucet to screw, a stop surface is arranged at a lower side of the connecting section, the fixing seat has a head end and an outer threading section, the fixing seat passes through the connecting section of the main body and screws with the inner threading section of the base with the outer threading section; and one side of the fixing seat adjacent to the base has a plurality of water holes and the other side thereof opposite to the outer threading section provides a sealing piston to seal, the sealing piston has a shielding section and a linking section, the linking section inserts into one of the water holes which is arranged at a center of the fixing seat to force the sealing piston to be limited in the fixing seat and the shielding section shields or covers other water holes to force water to flow unidirectionally, and a second sealing sheet is arranged on the head end of the fixing seat.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] All the objects, advantages, and novel features of the invention will become more apparent from the following detailed descriptions when taken in conjunction with the accompanying drawings.
[0010] FIG. 1 is a structural view of a wall-mounted check valve structure of the present invention.
[0011] FIG. 2 is an exploded view of the wall-mounted check valve structure of the present invention viewed from the bottom.
[0012] FIG. 3 is an exploded view of the wall-mounted check valve structure of the present invention viewed from the top.
[0013] FIG. 4 is a cross-sectional view of the wall-mounted check valve structure of the present invention.
[0014] FIG. 5 is an operational view of the wall-mounted check valve structure of the present invention.
[0015] FIG. 6 is an operational view of the wall-mounted check valve structure of the present invention while water flows.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0016] Referring now to the drawings where like characteristics and features among the various figures are denoted by like reference characters.
[0017] Please refer to FIGS. 1 to 6, a wall-mounted check valve structure may comprise a base 10 for connecting to a wall and a connecting assembly 20 for connecting a faucet.
[0018] Please refer to FIGS. 1 to 6, the base 10 may be assembled to the wall. A locking section 11 is arranged below the base 10 and connected with an inlet pipe of a building. A flow tunnel 12 is defined at a center of the base 10 for providing water to flow. An inner threading section 13 is arranged at a top portion of the flow tunnel 12 and a first sealing sheet 14 is arranged at a top portion of the inner threading section 13 for sealing water.
[0019] Please refer to FIGS. 1 to 6, the connecting assembly 20 may include a main body 21 and a fixing seat 22. A peripheral of the main body 21 is hexagonal. A connecting section 211 is arranged in the main body 12 for providing the faucet to screw and fix. The connecting assembly 20 and the faucet may be integrated to each other by a tool to drive the peripheral of the main body 21 to rotate. A stop surface 212 is arranged below the connecting section 211. When the fixing seat 22 of the connecting assembly 20 is connected to the base 10, the stop surface 212 may limit the fixing seat 22 so that the connecting assembly 20 may connect with the base 10 tightly. The fixing seat 22 has a head end 221 and an outer threading section 222. The head end 221 may just abut against the stop surface 212. The outer threading section 222 of the connecting assembly 20 may screw with the inner threading section 13 of the base 10. The first sealing sheet 14 may make the base 10 fix with the connecting assembly 20 tightly so as to prevent from leaking water. One side of the fixing seat 22 adjacent to the base 10 has a plurality of water holes 223 for guiding water to flow toward the faucet, and the other side thereof opposite to the outer threading section 222 has a sealing piston 23. The sealing piston 23 has a shielding section 231 and a linking section 232. The linking section 232 press-fits and inserts into one of the water holes which is arranged at a center of the fixing seat 22 to force the sealing piston 23 to be limited in the fixing seat 22 and the shielding section 232 shields or covers other water holes to force water to flow unidirectionally. A second sealing sheet 24 is arranged on the head end 221 of the fixing seat 22 to improve the tightness of seal to prevent from leaking water while the inlet pipe of the faucet connects with the connecting assembly 20.
[0020] Please refer to FIGS. 1 to 6, the practical operation of this invention is described as follows. Firstly, the inlet pipe of the faucet connects with the connecting assembly 20 after the connecting assembly 20 connects with the base 10. When turning on the faucet to guide water, water is flowed into the inlet pipe and the flow tunnel 12 in series. In this condition, the push force of the water flow is stronger so as to push the sealing piston 23 to make water flow through the water holes 223 toward the faucet. It may achieve the effect of providing water.
[0021] Please refer to FIGS. 1 to 6, when turning off the faucet, the water flow is weaker so that the shielding section 231 of the sealing piston 23 shields or covers the water holes 223 to immediately shield or cover the water holes 223 to prevent water from flowing back. Therefore, the wall-mounted check valve structure of this invention may prevent water from flowing back and improve the service life.
[0022] The foregoing descriptions are merely the exemplified embodiments of the present invention, where the scope of the claim of the present invention is not intended to be limited by the embodiments. Any equivalent embodiments or modifications without departing from the spirit and scope of the present invention are therefore intended to be embraced.
[0023] The disclosed structure of the invention has not appeared in the prior art and features efficacy better than the prior structure which is construed to be a novel and creative invention, thereby filing the present application herein subject to the patent law.
