JPH04133087U - fitting - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a joint that has a small number of parts, is small in weight, small in volume, and does not require consideration of sealing performance. [Structure] Hollow hose connection part 5 into which the hose 7 is fitted
and a hollow tube connection part 6 into which the resin tube 9 is inserted.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a joint for connecting a hose and a resin tube.

0002

[Conventional technology]

Conventionally, this type of joint has a rubber hose 7 fitted onto one end, as shown in FIG. A nipple 20 for piping is inserted into one end, and a nylon tube 9 is inserted into the other end for piping. From two separated parts, the nipple 21 is fitted onto the other end of the nipple 20. It was configured.

0003

[Problem that the idea aims to solve]

However, the above joints have many parts, are heavy, and have a large volume. Uniform sealing of the fitting area between the large piping nipple 20 and nipple 21 There were problems such as difficulty in doing so.

0004 This idea focuses on the above problems, and has a small number of parts, small weight, and small volume. We aim to provide a joint that is easy to use, yet does not require consideration of sealing performance as described above. Take it as a challenge.

[0005]

[Means to solve the problem]

In order to solve this problem, the joint of this invention is a hollow hose connection portion into which the hose is fitted; A hollow tube connection part that communicates with the hose connection part and into which the resin tube is inserted. and, It is characterized by consisting of only one nipple.

[0006]

[Effects of the idea]

According to this invention, the above structure reduces the number of parts, weight, and volume. It also eliminates the need to consider conventional sealing problems. .

[0007]

【Example】

An embodiment of this invention will be described below with reference to FIGS. 1 to 5.

[0008] The joint according to this embodiment consists of only one nipple.

[0009] This nipple has a hollow cylindrical member 1 as a component.

0010 The hollow cylindrical member 1 consists of a small diameter part 5 and a large diameter part 6 formed along the axial direction, It is made of metal.

[0011] A hose 7 is fitted onto the small diameter portion 5, and the small diameter portion 5 constitutes a hose connection portion according to the present invention. has been completed.

0012 A tapered surface 5a is formed on the outer peripheral surface of the small diameter portion 5 on the hose 7 insertion end side. The tapered surface 5a expands in diameter toward the large diameter portion 6, making it easier to insert the hose 7. .

[0013] Furthermore, a stepped surface 5b is formed on the outer circumferential surface of the small diameter portion 5. The step surface 5b is , extends from the end located on the large diameter portion 6 side of the tapered surface 5a toward the large diameter portion 6 side. From the large diameter surface 5c of the same diameter extending from the end located on the large diameter portion 6 side of the large diameter surface 5c, A vertical surface 5d extending toward the axis, and an end of the vertical surface 5d located on the axis side. , and a small diameter surface 5e having the same diameter extending toward the large diameter portion 6 side.

[0014] On the other hand, the inner peripheral surface 5f of the small diameter portion 5 extends from the insertion end of the hose 7 to the boundary position with the large diameter portion 6. It is formed from surfaces with the same diameter.

[0015] The end 7a of the hose 7 contacts the boundary between the small diameter portion 5 and the large diameter portion 6, and the hose 7 A stopper portion 8 is formed to prevent the intrusion of.

[0016] The outer peripheral surface of the large diameter part 6 is inserted into the nylon tube 9 of the large diameter part 6 from the stopper part 8. A tapered surface 6a whose diameter increases toward the end, and a nylon tube on the tapered surface 6a. of the same diameter extending from the end located on the insertion end side of the tube 9 to the insertion end of the nylon tube 9. and a large diameter surface 6b.

[0017] On the other hand, the inner circumferential surface of the large diameter portion 6 is formed by extending from the inner circumferential surface 5f of the small diameter portion 5. From the stopper surface 6c that prevents the iron tube 9 from entering and the stopper surface 6c There is also a step surface 6d located on the insertion end side of the nylon tube 9 and an annular cassette to be described later. Accommodates the protruding portion 10 of the member 2 and restricts movement of the annular cassette member 2 in its axial direction. and an annular groove 6e which is rotatably locked while holding the ring.

[0018] Inside the large diameter portion 6 of the metal hollow cylindrical member 1 having the above configuration, an annular cassette member 2 is provided. is inserted from the insertion end side of the nylon tube 9, and its convex portion 10 is engaged with the annular groove 6e. will be stopped.

[0019] In the cassette member 2, a resin annular member 3 is movable in both the axial direction and the circumferential direction. It is fitted with Noh.

[0020] Inside the large diameter portion 6 of the hollow cylindrical member 1, there are a chuck 4, a packing 11, and a collet 12. is installed.

[0021] As explained above, according to the joint of this embodiment, it can be made up of one nipple. This makes it possible to reduce the number of parts, weight and volume, and , there is no need to consider the conventional sealing problem.

[Brief explanation of drawings]

[Figure 1] Front view of one embodiment

[Figure 2] Left side view of the same

[Figure 3] Right side view of the same

[Figure 4] Partial sectional view

[Figure 5] Perspective view showing usage mode

[Fig. 6] A perspective view showing how the conventional example is used.

[Explanation of symbols]

1 Hollow cylinder member 5 Small diameter part (hose connection part) 6 Large diameter part (tube connection part) 7 Hose 9 Nylon tube (resin tube)

Claims (1)

[Scope of utility model registration request] 1. A joint characterized in that it consists of only one nipple, which has a hollow hose connection part into which a hose is externally fitted, and a hollow tube connection part into which a resin tube is inserted.