JPS6040891A - Connecting mechanism of pipe body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism that allows a connecting portion of a pipe that conveys fluid to freely rotate and bend.

Fluid conveyance devices have many objects, such as water and other liquids, air from blowers and the like, and air mixed with liquids or solids from suction devices.

When it is necessary to bend the conveyor pipe, conventionally, it has been connected to the pipe shown in Figure 1 with a flexible pipe, or fitted with a pipe of large or small diameter with a retaining structure around the pipe shown in Figure 2. There is an example of a structure.

The present invention provides a pipe bending method different from the above, and can have several distinctive functions as described below.

FIG. 3 is a sketch of one embodiment of the present invention, and FIG. 4 is a sectional view thereof. Common to both figures, 1 is a tube body, 2 is another tube body connected to it, 3 is an opening of tube body 1, 4 is an opening of tube body 2, and 3 and 4 are fitted. They have mutual dimensions that allow for smooth rotation.

Reference numeral 5 represents a connecting shaft between the two tube bodies, and reference numeral 6 represents a retaining member.

As can be easily understood, the two tubes can be rotated about the connecting shaft 5 and set at any mutual angle to meet the basic requirements and increase the strength of the connecting shaft 5 and related components. , the connecting portion can be made more solid than the conventional method and can withstand severe usage conditions.

FIG. 5 is an example in which a function is provided to a portion related to the retaining member. 7 is an adjustment screw holding part, 8 is a brake board, 9 is an adjustment screw, 10 and 11 are brake plates, and 12 is a rotation stop key.

In the structure shown in FIG. 5, when the adjustment screw 9 is tightened, the brake board 8
presses the brake plate 10 against the flat surface of the tube body 1. The entire retaining member does not rotate with respect to the connecting shaft 5 due to the function of the key, so if the connecting shaft 5 is fixed to the tube body 2, the tube body 1 will be braked against the tube body 2. Ru. When a force greater than the braking force is applied, the two tubes rotate relative to each other, but when the force is relieved, they remain stationary. This ability to freely rotate with damping is particularly useful when attempting to set the pipe in any direction in the vertical plane.

Furthermore, the brake plate shown in Fig. 5 has a structure in which it can be finely adjusted at all times using an adjustment screw 9, but it is possible to achieve a constant braking force under a wide range of usage conditions by using, for example, a spring mechanism. is also possible.

The brake plate 11 functions as a contact plate from the opposite side so that the pressing force of the brake plate 10 does not generate unnecessary friction at the fitting portion, that is, the contact portion of the fitting portions 3 and 4.

With these structures, it is possible to ensure airtightness and watertightness at the joint by providing a sealing mechanism at the fitting part and other important points, and it is also possible to handle patented gas, vacuum, pressurized air, etc. can.

FIG. 6 shows an example in which the tube body has a special shape. That is, since the tubular body 1 does not have a facing surface parallel to the opening, a member 13 having the function of supporting the connecting shaft 5 is separately provided. Furthermore, although the tube body 2 is different in shape and size compared to the previous examples, it is easy to understand that the technical meaning is the same.

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 are examples of conventional techniques regarding bending and connection of tube bodies. FIG. 3 shows an embodiment of the present invention. FIG. 4 is a sectional view of FIG. 3. FIG. 5 shows another embodiment of the present invention. FIG. 6 shows yet another embodiment of the present invention. Patent applicant: Kazutada Takeda

Claims (1)

[Scope of Claims] A tube connection mechanism characterized by comprising the following four types of members. (1) Tube A with a circular opening at one end. (2) An axis provided at the center of the opening of tube A perpendicular to the opening plane. (3) An opening that fits into the opening of tube body A and rotates smoothly, a bottom part parallel to the fitting plane, and the shaft penetrates through the bottom part. Pipe body B has a bearing hole at one end. (4) A retaining member for preventing the shaft from coming off from the bearing hole of the tube body B.