JPH0523616Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is used to connect rubber bags for introducing and discharging gases and liquids, such as polluted water diffusion prevention membranes in the ocean and rubber dams in rivers. Regarding structure.

[Conventional technology]

A conventional example of a rubber bag will be described below with reference to the drawings. Fig. 8 is a side view showing the connection state of the rubber bag, Fig. 9 is a front view of the connection structure, and the first example is a side view. The bags are made of rubber and are connected to each other by a connecting structure.

The above connection structure consists of fitting a cylindrical cap 2 to the end of a rubber bag body 1, bonding it with adhesive or naturally vulcanized rubber, and attaching the cap to a presser plate 3 so as to sandwich it from both sides. Tightening tools such as bolts by twisting and pinching 4
By this, the rubber bags 1 were made to have a closed and fixed structure, and the flanges 2a formed at the ends of the caps 2 were butted against each other and connected by bolts or the like, so that the rubber bags 1 were successively communicated. By connecting the rubber bags 1 in the same state and injecting or discharging gas or liquid from one mouthpiece 2, the gas or liquid in all the rubber bags 1 can be injected or discharged.

[The problem that the idea aims to solve]

According to the prior art described above, there is a problem in that the adhesion between the cap and the rubber bag is not always sufficient and gas or liquid inside the bag under pressure leaks from there.

In addition, the ends of the rubber bag body are sandwiched from both sides by pressing plates and tightened with bolts, etc.
If used for a long period of time, the holding plate and the bolts that tighten it will corrode or loosen, making tightening unreliable, and gas or liquid may leak from around the mouthpiece due to the pressure inside the rubber bag. In severe cases, there is a risk that the cap may come off due to pressure, and in such a case, leakage of gas or liquid may impair the function of the bag body.

[Means to solve problems]

The present invention connects the cylindrical caps attached to the ends of the rubber bags so that the rubber bags communicate with each other in sequence, and injects and discharges gas or liquid from one end of the cap. In a connection structure for a rubber bag that allows gas or liquid to be injected and discharged into the rubber bag, a rubber body of a desired shape is vulcanized and bonded around a cylindrical mouthpiece to form a mouthpiece. The rubber body of the cap part is integrated with the end of the rubber bag by being vulcanized and bonded by press processing when the end of the rubber bag is vulcanized and molded.

[Effect]

According to the above configuration, when the rubber bags are connected in a continuous manner, the caps are brought into close contact with the ends of each rubber bag body through the rubber bodies, so that the mutual adhesion around the caps is ensured, and the durability is improved. There is a connection structure.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is a front view of the connection structure, Figure 2 is a side view,
Figure 3 is a perspective view of the mouthpiece, Figure 4 is a sectional view, Figure 5 is a sectional view, and
The figure is a side view showing the connection state of the rubber bag body.
In the figure, reference numeral 1 denotes rubber bags for injecting and discharging gas or liquid, and they are connected to each other by a connection structure.

5 is a cap, which has a flange 5a at its tip;
A locking portion 5b is provided protruding around the periphery.

Reference numeral 6 denotes a rubber body attached to this cap 5, which wraps around the locking portion 5b and vulcanizes and adheres the cap 5 when rubber is press-vulcanized into a rectangular shape using a mold. Thus, a cap portion 7 is formed.

Reference numeral 8 denotes a holding plate, which is bent to match the shape of the mouthpiece 7.

Therefore, when the end portion of the rubber bag body 1 is vulcanized and molded, the mouthpiece portion 7 is vulcanized and bonded by press processing to be completely integrated with the end portion of the rubber bag body 1.

In this way, the mouthpiece 7 is completely integrated with the end of the rubber bag body, and moreover, it is sandwiched between the presser plates 8 and tightened with fasteners 9 such as bolts to firmly integrate them.

As shown in FIG. 5, the rubber bag body 1 with the cap part 7 attached thereto is sequentially connected to the rubber bag body 1 by making the cap parts 7 face each other and locking the flanges 5a with bolts. By connecting them in this state and injecting or discharging gas or liquid from the cap 5 at one end, the gas or liquid in all the rubber bags 1 can be injected or discharged.

10 is a connecting member that supports the rubber bag body 1 in the lateral direction.

In the above embodiment, the rubber body of the mouthpiece is rectangular, but the shape is not limited to this shape, and the cross-sectional shape may be circular, oval, or any other shape.

Further, the structure of the locking portion 5a is not limited to the above structure, and a locking piece 5c may be fixed around the base 5 by welding or the like and a rubber body is vulcanized and bonded as shown in FIG. In this case, the through hole 5d should be inserted into the locking piece 5c.
It is a good idea to open up the rubber bodies so that they can communicate and integrate. Alternatively, as shown in FIG. 7, a retaining plate 5e may be fixed to the rear part by welding or the like, and the rubber body may be vulcanized and bonded.

[Effect of idea]

According to the present invention described in detail above, the cylindrical caps attached to the ends of the rubber bags are connected to sequentially connect the rubber bags, and gas or liquid is injected from the cap at one end. In a rubber bag connection structure that allows gas and liquid to be injected and discharged into and out of all rubber bags, a rubber body of a desired shape is added around the cylindrical mouthpiece. By bonding with sulfur to form a mouthpiece, and integrating the rubber body of this mouthpiece with the end of the rubber bag by press working when vulcanizing and molding the end of the rubber bag, Unlike the case where the cap is attached directly to the end of the rubber bag, it is attached through the rubber body, which ensures close contact around the cap.
This has the effect of preventing the gas or liquid inside the rubber bag from leaking from that location.

Further, since the cap and the rubber body, and the rubber body and the end of the rubber bag body are vulcanized and bonded to each other, the adhesion between the respective parts is reliable and durable.

[Brief explanation of the drawing]

Figure 1 is a front view of the connection structure, Figure 2 is a side view,
Figure 3 is a perspective view of the mouthpiece, Figure 4 is a sectional view, Figure 5 is a sectional view, and
The figure is a side view showing the connected state of the rubber bag, FIG. 6 is a perspective view showing the second embodiment of the mouthpiece, FIG. 7 is a perspective view showing the third embodiment of the mouthpiece, and FIG. 8 is a perspective view showing the third embodiment of the mouthpiece. FIG. 9 is a side view showing the connection state of a conventional rubber bag body, FIG. 9 is a front view of the conventional connection structure, and FIG. 10 is a side view of the same. 1... Rubber bag body, 5... Cap, 6... Rubber body, 7... Cap part.

Claims (1)

[Scope of utility model registration request] By connecting the cylindrical caps attached to the ends of the rubber bags so that the rubber bags communicate with each other in sequence, gas or liquid can be injected and discharged from the cap at one end. In a connection structure for a rubber bag that allows gas or liquid to be injected and discharged into the body, a rubber body of a desired shape is vulcanized and bonded around a cylindrical cap to form the cap part, and the cap is A connection structure for a rubber bag body, characterized in that the rubber body of the rubber body is integrated with the end portion of the rubber bag body by being vulcanized and bonded by press processing when the end portion of the rubber bag body is vulcanized and molded.