CN204254105U - A hose connection joint - Google Patents

Abstract

A hose connection joint, including a connection core, a jacket and a hose, the two ends of the connection core are respectively connected to the hose and the use end, the jacket is clamped on the outer surface of the connection core and the hose, and the jacket is on the One side of the hose is provided with an internal thread, and one end of the connecting core is provided with a tapered introduction head for passing through the inside of the hose, a pressure ring and an external thread located outside the hose and matched with the internal thread. The outer thread of the connecting core of the utility model is only fitted with the inner thread of the jacket, and the tapered lead-in head and the pressure ring are in contact with the hose, so that the contact area is greatly reduced, the frictional resistance is greatly reduced, and the connection becomes more convenient save effort. Furthermore, the inner wall of the connecting core squeezes the hose through the pressure ring to deform and sag, and the inner wall of the hose and the outer surface of the connecting core are tightly fitted by the pressure of the jacket to form an undercut anti-dropping and sealing whole , can increase the connection strength and reduce the leakage of the connection.

Description

A hose connection joint

technical field

The utility model relates to a hose connection joint.

Background technique

When transporting gas or fluid, the delivery pipeline at the supply end needs to be connected to the use end through a hose connection joint. In the prior art, the hose connection joint includes a hose connected to the delivery pipeline, a connecting core and a jacket. On the outside of one end of the hose, one end of the connecting core provided with an external thread passes through the inside of the hose to connect with the hose, and the other end of the connecting core is connected to the use end. Both the jacket and the connecting core are hard materials.

In the process of use, it is found that the connecting operation between the connecting core and the rubber hose is relatively difficult, mainly because the clamping pressure of the hose received by the jacket and the connecting core is relatively large during the connection, and the connecting core needs to be squeezed through the external thread to squeeze the soft The pipe is deformed to form an internal thread, which is passed through the inside of the hose, and the friction with the inside of the hose is relatively large. Moreover, since the thread structure is a continuous linear structure, if the quality of the hose is unstable, gas or fluid will leak along the thread line and pour into the hose interlayer, causing the hose to bubble and leak.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a hose connection joint which is convenient and labor-saving and can reduce leakage.

In order to achieve the above object, the utility model adopts the following technical solutions:

A hose connection joint, including a connection core, a jacket, and a hose connected to a delivery pipeline. The two ends of the connection core are respectively connected to the hose and the use end, and the connection core is provided with a connecting hose and the use end. Through hole, the jacket is clamped on the outer surface of the connecting core and the hose, the jacket is provided with an internal thread on one side of the hose, and one end of the connecting core is provided with a tapered lead-in for passing through the inside of the hose The head, the pressure ring and the external thread that is located outside the hose and matched with the internal thread, the tapered introduction head is located at the end of the connecting core, and the pressure ring is protrudingly arranged on the outer surface of the connecting core.

The inner side of the jacket is provided with a groove at the hose.

There are multiple grooves, and the multiple grooves are distributed along the length direction of the hose.

The groove is circular.

There are multiple pressure rings, and the multiple pressure rings are distributed along the length direction of the connecting core.

The beneficial effects of the utility model are:

Compared with the prior art, the outer thread of the connecting core of the utility model is only installed in cooperation with the inner thread of the jacket, and contacts the hose through the tapered lead-in head and the pressure ring, so that the contact area is greatly reduced and the frictional resistance is greatly reduced , making the connection more convenient and labor-saving. Furthermore, the inner wall of the connecting core squeezes the hose through the pressure ring to deform and sag, and the inner wall of the hose and the outer surface of the connecting core are tightly fitted by the pressure of the jacket to form an undercut anti-dropping and sealing whole , can increase the connection strength and reduce the leakage of the connection.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic diagram of the internal structure of FIG. 1 .

Among them: 10, connecting core; 11, tapered lead-in head; 12, pressure ring; 13, external thread; 20, jacket; 21, internal thread; 22, groove; 30, hose.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

As shown in Figures 1 and 2, the hose connection joint of the present utility model includes a connection core 10, an outer jacket 20 and a hose 30 connected to the delivery pipeline, and the two ends of the connection core 10 are connected to the hose 30 and the hose respectively. The use end, the connection core 10 is provided with a through hole for connecting the hose 30 and the use end, the outer cover 20 is clamped on the outer surface of the connection core 10 and the hose 30, and the outer cover 20 is on one side of the hose 30 An internal thread 21 is provided, and one end of the connecting core 10 is provided with a tapered introduction head 11 for passing through the inside of the hose 30, a pressure ring 12, and an external thread 13 located outside the hose 30 and matched with the internal thread 21. The shape introduction head 11 is located at the end of the connection core 10 , and the pressure ring 12 is protruded on the outer surface of the connection core 10 .

When installing, install the hose 30 inside the outer casing 20 first, fix the outer casing 20 with fasteners, then connect the core 10 through the external thread 13 and the internal thread 21 to cooperate with the installation, and pass the tapered introduction head 11 through the Inside the hose 30. In this way, the external thread 13 of the connecting core 10 is only fitted with the internal thread 21 of the overcoat 20, and is in contact with the flexible pipe 30 through the tapered introduction head 11 and the pressure ring 12. In this way, the contact area is greatly reduced, and the frictional resistance is greatly reduced. Connection becomes more convenient and labor-saving. Furthermore, the inner wall of the connecting core 10 squeezes the hose 30 through the pressure ring 12 to deform and sag, and the inner wall of the hose 30 and the outer surface of the connecting core 10 are tightly fitted by the pressure of the jacket 20 to form an undercut. The whole body of anti-off and sealing can increase the connection strength and reduce the leakage at the connection.

Preferably, there are multiple pressure rings 12, and the multiple pressure rings 12 are distributed along the length direction of the connecting core 10. Through the pressure of the jacket 20, the inner wall of the hose 30 is deformed together with the multiple pressure rings 12 and the multiple pressure rings 12. The recesses between them fit together, so that the anti-off ability of the hose 30 can be further enhanced, and the leakage at the connection can be further reduced.

Preferably, the inner side of the jacket 20 is provided with a groove 22 at the hose 30 , and under the clamping of the jacket 20 and the connecting core 10 , the outer wall of the hose 30 is deformed to fit with the groove 22 of the jacket 20 to form an undercut The anti-off and sealed whole can further reduce the leakage at the connection.

More preferably, there are multiple grooves 22 in the overcoat 20, and the multiple grooves 22 are distributed along the length direction of the hose 30. The number of the grooves 22 depends on the size of the diameter of the hose 30 and the pressure received, so that During installation, the deformation of the outer wall of the hose 30 fits snugly with the multiple grooves 22 , which can further enhance the anti-off ability of the hose 30 and further reduce leakage at the connection.

More preferably, the groove 22 of the jacket 20 is annular, so that the contact area between the groove 22 and the hose 30 is large.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (5)

1. A hose connection joint, comprising a connection core, an outer jacket and a hose connected to the delivery pipeline, the two ends of the connection core are respectively connected to the hose and the use end, and the connection core is provided with a connecting hose and The through hole at the use end is clamped on the outer surface of the connecting core and the hose. It is characterized in that the outer sleeve is provided with an internal thread on one side of the hose, and one end of the connecting core is provided with a thread for passing through the soft tube. The tapered lead-in head inside the pipe, the pressure ring and the external thread located outside the hose and matched with the internal thread, the tapered lead-in head is located at the end of the connecting core, and the pressure ring is protrudingly arranged on the outer surface of the connecting core. 2. The hose connection joint as claimed in claim 1, wherein a groove is provided on the inner side of the jacket at the hose. 3. The hose connection joint according to claim 2, wherein there are multiple grooves, and the multiple grooves are distributed along the length direction of the hose. 4. The hose connection fitting of claim 2, wherein the groove is annular. 5. The hose connection joint according to claim 1, wherein there are multiple pressure rings, and the multiple pressure rings are distributed along the length direction of the connection core.