The invention pertains to an odor trap, which comprises a first drainage channel situated between an inlet and an outlet, comprising, viewed in the flow direction, a first closing wall for the closing off of an uppermost part of the drainage channel and a second closing wall for the closing off of a lowermost part of the first drainage channel. The first and second closing walls, viewed in a horizontal direction, overlap. The odor trap comprises an elongated main body. The inlet substantially extends over the length of a first planar surface of the main body, which first planar surface is determined by the first closing wall. The second closing wall is situated in the main body. The outlet is situated in a second planar surface, situated opposite the first planar surface. The invention also pertains to a drain body and a drain assembly.

A multi-layer water sealing device, includes at least two layers of water seal sequentially arranged from top to bottom. An upper-layer water seal has a floating bell-shaped cover structure, and the floating bell-shaped cover structure includes a water sealing box and a floating bell-shaped cover arranged in the water sealing box. A lower-layer water seal is arranged in a drain pipe below the floating bell-shaped cover, and one side of the water sealing box is extended to form or connected to a communication cavity offset from the drain pipe. The floating bell-shaped cover correspondingly is extended to form or connected to a floating component floatable in the communication cavity and offset from the drain pipe.

An in-drain sealing apparatus for being positioned in a drain pipe with an interior surface where the positioning is below a surface mounted grate in a room area. The drain sealing apparatus includes a connector ring defined by a center axis, a lower edge and a peripheral surface, the connector ring positioned in the drain pipe below the grate with a first cylindrical space defined between the drain pipe interior surface and the connector ring peripheral surface. A sealing member is positioned in the first space for sealing the first cylindrical space between the peripheral surface of the connector ring and interior surface of the drain pipe for preventing access from the drain pipe to the room area through the region between the connector ring and the drain pipe. A normally close sealing device is coupled to the connector ring whereby liquid flowing through the grate area into the drain will cause the normally closed sealing device to open allowing the liquid into the drain pipe and then return to its normally closed position when liquid ceases to flow through into the grate.

A method of installing a drain fixture, the method comprising first installing a sub-floor plumbing system comprising a plumbing trap, a removable drain pipe, and a sleeve. Next, the method comprises connecting the plumbing trap and the removable drain pipe and sliding the sleeve over the removable drain pipe. Next, the method comprises building a flooring surface proximate to the plumbing trap, the removable drain pipe, and the sleeve. Then, the method comprises removing the removable drain pipe at least partly from the sleeve, cutting the removable drain pipe to the desired length, and re-inserting the removable drain pipe through the sleeve and into the plumbing trap.

A joint device for drain pipes comprises a structural tube made of a rigid material and providing structural integrity to the joint device. The structural tube defines at least part of a drain passage of the joint device, a bottom portion of the structural tube having diametrical dimensions for complementary sealing engagement with a pipe of a drain network. An annular seal of resilient sealing material is integrally connected to an upper portion of the structural tube to define at least an inner surface of a portion of the drain passage of the joint device, the annular seal having inner diametrical dimensions for sealing engagement with a tailpiece slid downwardly into engagement with the joint device.

An interface with an odor-resistant component comprises a shell and an odor-resistant component, wherein an accommodating cavity is arranged on the shell; the odor-resistant component is arranged in the accommodating cavity; the interface is characterized by further comprising a cover plate, wherein the odor-resistant component comprises a fixed seat and a flip cover hinged on the fixed seat; the fixed seat is arranged on the cover plate, the shell is provided with an opening communicated with the accommodating cavity; and the cover plate is arranged at the opening and is detachably connected with the shell

A pre-form for drain installation is provided. The pre-form comprises a cap portion, a bottom portion, and an outer portion. The cap portion defines an interior for receiving a top end of an upwardly extending drain pipe and is configured to cover an opening of the drain pipe. The bottom portion is detachedly coupled to the cap portion and comprises an aperture through which the drain pipe may pass so as to enable the bottom portion to slide along the length of the drain pipe. The outer portion is coupled to and extends upwardly from the bottom portion so as to define a perimeter for displacing concrete proximate to the drain pipe when inserted into a wet concrete flooring surface.

A floor drain for same floor drainage of a building consists of a floor drain body and a floor drain cover The floor drain body consists of a lower accumulated water collection tank, a lateral accumulated water collection tank and an accumulated water discharge port. A bottom of the lower accumulated water collection tank is sealed, and has an angle of 70 to 120 with the lateral accumulated water collection tank. The floor drain cover is a plate with holes, and is divided into a lower upstream face and a lateral upstream face. The lower upstream face of the floor drain cover is located above the lower accumulated water collection tank, and the lateral upstream face of the floor drain cover is located outside the lateral accumulated water collection tank.

A joint device for drain pipes comprises a structural tube made of a rigid material and providing structural integrity to the joint device. The structural tube defines at least part of a drain passage of the joint device, a bottom portion of the structural tube having diametrical dimensions for complementary sealing engagement with a pipe of a drain network. An annular seal of resilient sealing material is integrally connected to an upper portion of the structural tube to define at least an inner surface of a portion of the drain passage of the joint device, the annular seal having inner diametrical dimensions for sealing engagement with a tailpiece slid downwardly into engagement with the joint device.

A floor drain for same floor drainage of a building consists of a floor drain body and a floor drain cover The floor drain body consists of a lower accumulated water collection tank, a lateral accumulated water collection tank and an accumulated water discharge port. A bottom of the lower accumulated water collection tank is sealed, and has an angle of 70 to 120 with the lateral accumulated water collection tank. The floor drain cover is a plate with holes, and is divided into a lower upstream face and a lateral upstream face. The lower upstream face of the floor drain cover is located above the lower accumulated water collection tank, and the lateral upstream face of the floor drain cover is located outside the lateral accumulated water collection tank.