JPH0240375Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a connecting member for fluid piping that easily connects a fluid container containing a fluid such as water and a pipe for taking out fluid from the fluid container.

(Prior art and its disadvantages) Conventionally, to connect a box-shaped fluid container made of a flat plate and a pipe, an insertion hole is provided in the flat plate of the fluid container, and a female threaded flange for connecting the pipe is welded to correspond to the insertion hole. Alternatively, methods such as inserting a hollow bolt with internal threads were used.

However, if the flat plate of the fluid container is thin, it is difficult to weld the flange, and with bolts, it is necessary to screw a nut onto the opposite side of the flat plate (in other words, inside the fluid container), and this nut is attached to the fluid container. It has disadvantages such as protruding and requiring time and effort to connect.

(Purpose of the invention) This invention improves the above-mentioned drawbacks, and allows the pipe to be easily inserted into the insertion hole provided in the flat plate by working only from one side (outer surface) of the flat plate in the fluid container. It is an object of the present invention to provide a connecting member for fluid piping that can be connected.

(Summary of the invention) That is, the fluid piping connecting member according to the invention is a circular cylindrical elastic member made of rubber, synthetic resin, etc., which has a collar at one end and an inserted female thread at the other end. This elastic member is inserted into an insertion hole of a fluid container such as water with the flange facing outward, and a hollow tube body having a male thread at the tip and a stop flange at the terminal end of the male thread is inserted into the flange of the elastic member. Insert the hollow tube from the side, press the hollow tube toward the fluid container, screw the male thread into the female thread of the elastic member, and raise and deform the space between the collar and the female thread of the elastic member. It is meant to be worn tightly.

(Embodiment of the invention) Fig. 1 shows an embodiment of the fluid piping connecting member according to the invention, which is a circular cylindrical elastic member 1 having a flange 1a at one end, and an inner portion of the other end. It is made of rubber, synthetic resin, etc. into which a metal female thread 1b is inserted.

As shown in FIG. 2, this elastic member 1 is inserted into an insertion hole Ca provided at the side of a fluid container C made of a flat plate Cb for storing water or paint, etc., with the side where the female screw 1b is inserted facing forward. The container C is inserted from the outside to the inside, and the collar 1a is brought into contact with the outer surface of the flat plate Cb of the container C.

Next, as shown in Fig. 3, a male screw 2a is attached to the tip.
A hollow tube body 2 having a stop collar 2b at the terminal end of the male thread 2a is inserted from the collar 1a side of the elastic member 1, and the hollow tube body 2 is pressed toward the fluid container C side. First, this male thread 2b is screwed into the female thread 1b of the elastic member 1. Then, as shown in FIG.
b to the outside of the container C, and the stop flange 2b of the hollow tube body 2 presses the flange 1a of the elastic member 1 against the flat plate Cb side of the container C, so that the gap between the flange 1a and the internal thread 1b of the elastic member 1 As a result, the elastic member 1 is caulked to the flat plate Cb of the container C, and the hollow tube body 2 is securely attached to the elastic member 1.

The swell of the elastic member 1 is the flat plate of the container C.
It is formed inside Cb, and together with the flange 1a, it pinches the flat plate Cb around the insertion hole C, forming a packing, so that the fluid inside the container C does not leak out from the insertion hole Ca into which the elastic member 1 is inserted.

In addition, in the embodiment shown in the drawings, the hollow tube body 2
Although the stop flange 2b is integrated with the hollow tube body 2, it may be a nut screwed onto the male screw 2a.

Moreover, if the hollow tube body 2 is rotated in the opposite direction, the elastic member 1 is returned from the deformed state to the normal state, and the insertion hole is
The hollow tube body 2 can be easily extracted from Ca.

5 and 6 show other embodiments of the elastic member 1. FIG. The one shown in the fifth figure is an example in which a rotation preventing member 3 having a diameter smaller than the collar 1a is inserted (embedded) into the outer side (front surface) of the collar 1a of the elastic member 1 by approximately half the thickness. What is shown is an example in which a rotation preventing member 3 having a larger diameter than the collar 1a is fixed. A spanner S or the like is fitted into the rotation prevention member 3 to prevent the elastic member 1 from rotating when the hollow tube body 2 is screwed onto the elastic member 1. Same as (but
There is no female thread in the center).

(Effects of the invention) As described above, the connecting member for fluid piping according to this invention enables the two roles (functions) of connecting the hollow pipe body to the fluid container and packing, and also enables attachment and detachment. It is very easy to attach and detach the fluid container made of a flat plate only from the outside, which is a great effect, and it is particularly useful for connecting a large water tank to a plumbing pipe.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional side view of a part of an elastic member which is a connecting member for fluid piping according to an embodiment of the invention, Fig. 2 is a sectional view of the elastic member inserted into a fluid container, and Fig. 3 is a middle view of the elastic member. A cross-sectional view of the hollow tube body 2, FIG. 4 is a cross-sectional view of the fluid piping connecting member and the hollow tube body 2 attached to a fluid container, and FIGS. 5 and 6 are other embodiments of the elastic member. FIG. 2 is a perspective view and a cross-sectional view according to C...fluid container, Ca...insertion hole, Cb...flat plate of fluid container 1, 1...elastic member, 1a...tsuba, 1
b...Female thread, 2...Hollow tube body, 2a...Male thread, 2b...Stop collar, 3...Rotation prevention member.

Claims (1)

[Claims for Utility Model Registration] (1) A circular cylindrical elastic member 1 made of rubber, synthetic resin, etc., having a flange 1a at one end and a female thread 1b inserted at the other end; The insertion hole of the fluid container C such as water
It is inserted into Ca with the flange 1a on the outside, has a male thread 2a at the tip, and has the male thread 2a.
A hollow tube body 2 having a stop flange 2b at the terminal end thereof.
is inserted from the collar 1a side of the elastic member 1, and while pressing the hollow tube body 2 toward the fluid container C side, the male thread 2a is screwed into the female thread 1b of the elastic member 1, and the elastic member 1 Tsuba 1a and female screw 1 in
A connecting member for fluid piping formed by raising and deforming the space between b and b. (2) Registration of a utility model characterized in that a rotation prevention member 3 into which a spanner or the like is fitted is attached to the collar 1a of the elastic member 1 by an insert or the like in order to prevent the rotation of the elastic member 1. A connecting member for fluid piping according to claim 1.