| 摘要 |
A movable shutter for a fluid conduit including two half-bodies consisting of a tube that forms a conduit, to the ends of which are affixed a flange and a plate having a bearing surface; a gate with a body defined by two longitudinal surfaces located opposite the bearing surfaces, which gate is mounted movably between the bearing surfaces, between a closed position and an open position; and a locking mechanism suitable for keeping the plates in a position in which they are either separated or close together, wherein at least one protruding element is provided on at least one of the bearing surfaces or on at least one of the longitudinal surfaces, such that if the gate is not properly positioned, the protruding element forms an obstacle that prevents the locking mechanism from keeping the plates in the position in which they are close together. |
| 主权项 |
1. A movable shutter for a fluid conduit including:
two half-bodies arranged so as to form a fluid conduit, with each of the half-bodies formed by a tube that forms a conduit, to the ends of which are affixed respectively a flange and a plate, with each of the plates having a bearing surface and a space between the two half-bodies; a gate in the form of a body defined by two flat facing longitudinal surfaces, each of which is located respectively opposite the bearing surface of the plates, the gate having a solid portion and a portion that is pierced by an opening whose edges are flush with each of the longitudinal surfaces, the gate being mounted movably between the bearing surfaces in the space between the two half-bodies, between:
a closed position in which the solid portion closes the conduit so as to prevent the flow of fluid between the two half-bodies; andan open position in which the pierced portion is placed in the center of the conduit so as to allow the flow of fluid between the two half-bodies, a locking mechanism suitable for keeping the plates in:
a position in which they are separated, in which the bearing surface of the plates is spaced apart from the respective longitudinal surface of the gate, so as to allow the gate to be shifted between the closed and open positions; anda position in which they are close together, in which the bearing surfaces clamp together, in a leakproof manner, the body of the gate so as to hold the gate in the open position or in the closed position, with each of the bearing surfaces coming into close contact with the respective longitudinal surface of the gate,wherein at least one protruding element made of a rigid material is provided on at least one bearing surface of at least one plate, or on at least one of the longitudinal surfaces of the body of the gate, with the protruding element being configured such that in the close-together position, the space between the two bearing surfaces of the plates is less than the combined thickness of the body and of the protruding element, such that if the gate is not properly positioned in the space between the two half-bodies, in the closed position or in the open position, the protruding element forms an obstacle that keeps the bearing surface of at least one plate away from the respective longitudinal surface, and such that the locking mechanism cannot keep the plates in the position in which they are close together and in which they clamp the body in a leakproof manner. |
