Abrégé

The present invention relates to a connection socket which is installed at a joint portion of water and sewer pipes. More specifically, disclosed is a technology related to a water and sewer pipe connection socket capable of preventing pipe separation and having improved watertightness and stability, which is installed at the joint portion of the water and sewer pipes such that the connection of the water and sewer pipes is stably and firmly maintained, and at the same time, watertightness is improved by using a first inner airtight piece and a second inner airtight piece, whereby the connection socket is capable of effectively preventing fluids leaking from the joint portion of the water and sewer pipes from leaking to the outside and preventing fluids such as rainwater and so on from the outside from permeating the joint portion of the water and sewer pipes, as well as effectively preventing the water and sewer pipes from being separated when the joint portion of the water and sewage pipes is separated due to vibrations caused by fluids, earthquakes, or the like.

Classes IPC  ?

• F16L 21/02 - Raccords avec manchon ou douille avec segments d'étanchéité élastiques entre le tuyau et le manchon ou entre le tuyau et la douille, p. ex. avec des segments roulants ou autres segments profilés préfabriqués
• F16L 17/025 - Raccords avec garnitures adaptées à une étanchéité par pression de fluide avec segments d'étanchéité disposés entre la surface extérieure du tuyau et la surface intérieure d'un manchon ou d'une douille les segments d'étanchéité comportant des nervures radiales
• E03F 3/06 - Procédés ou installations pour la pose des canalisations d'égouts
• E03B 7/09 - Parties constitutives ou accessoires

Abrégé

The present invention relates to a manufacturing method for a PE or PP pipe containing sulfur polymer cement, and more specifically, to a manufacturing method for a PE or PP pipe containing sulfur polymer cement, the method using a combination of two techniques, one for homogeneously blending the sulfur polymer cement into the material for forming a pipe, and the other for treating toxic sulfur gases generated from the forming process, and to a PE or PP pipe manufactured by the manufacturing method. The manufacturing method for a PE or PP pipe containing sulfur polymer cement of the present invention comprises: a PE or PP blend preparation step (100) for forming a PE or PP blend using PE or PP in particle or powder form, and supplemental ingredients; a forming step (200) for melt-extruding the PE or PP blend to form a PE or PP pipe; and a production step (300) for cutting the PE or PP pipe drawn out in the forming step to a predetermined length to form products, wherein the PE or PP blend preparation step (100) consists of additionally adding the sulfur polymer cement to be mixed together, to prepare the PE or PP blend containing the sulfur polymer cement.

Classes IPC  ?

• B29C 48/09 - Objets dont la section transversale comporte des cavités partiellement ou entièrement fermées, p. ex. tuyaux ou canaux
• B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
• B29C 48/16 - Articles comprenant au moins deux composants, p. ex. couches coextrudées
• C08L 23/06 - Polyéthylène
• B01D 53/48 - Composés du soufre
• C08L 23/12 - Polypropylène
• C08J 3/22 - Formation de mélanges de polymères avec des additifs, p. ex. coloration en utilisant les techniques des charges mères
• C08K 13/02 - Ingrédients organiques et inorganiques
• C04B 24/16 - Composés contenant du soufre
• B29L 23/00 - Objets tubulaires

Abrégé

The present invention relates to a protective socket-integrated water supply/sewerage pipe set having improved watertightness by preventing fracture of a connection end portion and detachment of a pipe and, more particularly, to a water supply/sewerage pipe set wherein the same comprises a water supply/sewerage pipe and a clamp; the water supply/sewerage pipe comprises a pipe body and a protective socket; the protective socket is integrally configured on the outer peripheral edge of an end of the pipe body; the protective socket has a protective ledge formed to protrude along the outer peripheral edge thereof; the clamp has a tightening portion formed inside one side thereof, has a detachment prevention ledge formed to protrude inside the other side thereof, and has a free movement space formed inwardly between the tightening portion and the detachment prevention ledge; the tightening portion tightens and retains the outside of the pipe; the protective ledge is positioned in the free movement space so as to form a space in which the protective socket can move freely; and the detachment prevention ledge is formed to protrude inwardly more than the outer diameter of the protective ledge without contacting the outer diameter of the pipe body such that, by connecting the pipe into the protective socket and by fastening the clamp, fracture of the connection end portion is prevented, fracture of the pipe body is prevented, detachment is prevented, and extending/contracting changes are allowed.

Classes IPC  ?

• F16L 27/08 - Raccords réglablesRaccords permettant un déplacement des parties raccordées permettant un réglage ou déplacement uniquement autour de l'axe de l'un des tuyaux
• F16L 21/06 - Raccords avec manchon ou douille avec manchon ou segment fractionné bridé autour des extrémités du tuyau
• F16L 21/08 - Raccords avec manchon ou douille avec moyens additionnels de verrouillage
• F16L 17/02 - Raccords avec garnitures adaptées à une étanchéité par pression de fluide avec segments d'étanchéité disposés entre la surface extérieure du tuyau et la surface intérieure d'un manchon ou d'une douille
• E03B 7/02 - Réseaux de canalisations publiques ou autres canalisations maîtresses analogues
• E03B 7/04 - Réseaux de canalisations domestiques ou autres canalisations locales analogues
• E03F 3/04 - Canalisations ou accessoires spécialement adaptés aux égouts
• E02D 29/00 - Ouvrages souterrains ou sous l'eauMurs de soutènement
• E02D 29/16 - Aménagement ou réalisation de joints dans les fondations

Abrégé

The present invention relates to a manhole comprising a body which is variable depending on a pipe to be connected, wherein the body of the manhole is formed by assembling a plurality of unit body members and a pipe connecting member, the unit body member is divided into a curved unit body member forming a circular arc in a plane, and a plane unit body member forming a straight line in a plane, each unit body member comprises a rectangular plate and a joint flange case protruding from the edge of the rectangular plate and forming a cylindrical structure, and the pipe connecting member comprises a joint flange case of a cylindrical structure corresponding to the joint flange case of the unit body member, so that a pipe to be connected to the inside is connected, enabling an assembly of the body with a size and shape suitable for a construction site and allowing the body to be variable depending on a pipe to be added, removed, or changed after construction.

Classes IPC  ?

• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet
• E02D 29/14 - Couvercles pour regards ou analoguesChâssis de couvercles
• E02F 3/04 - DraguesEngins de terrassement entraînés mécaniquement
• E03B 9/02 - Prises d'eauAgencement des clapets dans les prises d'eauClés pour prises d'eau
• H02G 9/10 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau dans des chambres de câbles, p. ex. dans un trou d'homme

Abrégé

The present invention relates to a tilt-adjustable protective case for a stop cock, the protective case comprising: a main body that is open at the top and bottom thereof, the upper portion of which has an upwardly convex hemispherical shape; a length adjusting part having a pipe structure and assembled to the open bottom side of the main body; and a tilt adjusting part that is open at the top and bottom thereof, the lower inner surface of which has an upwardly convex hemispherical shape and a lid being assembled to the upper portion of the tilt adjusting part, wherein the length adjusting part is installed to surround the stop cock, the main body is coupled to the length adjusting part, the tilt adjusting part and the lid are sequentially assembled to the upper portion of the main body, and the tilt adjusting part is secured to the main body by a fixing means, whereby it is possible to protect the stop cock and to easily match the tilt of the lid with the slope of the ground by adjusting the position of the tilt adjusting part relative to the main body.

Classes IPC  ?

• E03B 9/10 - Plaques de protection ou bouchons
• E02D 29/14 - Couvercles pour regards ou analoguesChâssis de couvercles
• E02D 29/12 - Trous d'hommeAutres chambres d'inspection ou d'accèsAccessoires à cet effet

Abrégé

A pelvis protection chair is disclosed. The seats and seat support plate of the pelvis protection chair are formed through injection molding using synthetic resin, thus enabling mass production, therefore reducing manufacturing costs. The seats and the seat support plate are coupled to each other using a hinge structure, thus enabling easy assembly. Further, according to the body size of a user, the width between armrests and the height of armrests can be simultaneously adjusted.

Classes IPC  ?

• A47C 7/54 - Appuis pour les bras