CN117249328A - Combined rubber tube joint - Google Patents

Abstract

The creation discloses a combined rubber hose joint which is used for being connected with another device and transmitting fluid, and comprises a tube core, wherein the tube core comprises a step part with a larger diameter and a first joint part with a smaller diameter, and the first joint part is formed by axially extending from the step part; the pipe part comprises a second joint part which is butted with the first joint part, the first joint part and the second joint part are respectively provided with a thread section, and the first joint part and the second joint part are screwed by the thread sections; the butt joint nut comprises a butt joint part and a clamping part, the butt joint part is used for being connected with the other equipment, the diameter of the clamping part is smaller than that of the step part and larger than that of the first joint part, and the butt joint nut is kept on the tube core in the direction facing the other equipment; a seal is disposed between the tube portions and the die.

Description

Combined hose joint

Technical field

The invention relates to a combined hose joint, which is mainly used for connecting the hose to another equipment.

Background technique

At present, in the use of hoses, it is usually necessary to equip one end with a joint, and the hose is connected to another device through the joint to realize the transmission of fluid in the pipeline.

The hose joint usually includes a tube core, which is fixedly connected to the hose, and a butt nut, which is screwed to the other device, so that the tube core and the other device are connected to each other, so that the fluid can be connected between the tube core and the other device. Flow between devices.

Usually, the tube core is provided with a step portion, and the nut is provided with a clamping portion. The diameter of the clamping portion is smaller than the step portion. The clamping portion is clamped on the step portion to connect the tube core with another device in the axial direction.

When the holding part of the nut has a fixed shape and the other end of the tube core needs to be passed through the holding part, the diameter of the other end of the tube core is smaller than the diameter of the holding part, and the flow rate of the tube core is small, so it is not suitable for large flow rates. Application occasions.

When the holding part of the nut is a structure that can be deformed under pressure, the diameter of the other end of the tube core can be larger and pass through the holding part before deformation, and after the tube core is assembled on the holding part, the holding part is squeezed And hold the holding part on the tube core. However, this deformable holding part has a small load-bearing capacity and is only suitable for low-pressure fluids.

Therefore, it is necessary to design a new hose joint to meet the requirements of large flow and high pressure applications.

Contents of the invention

The technical problem to be solved by this invention is to provide a combined hose joint.

In order to solve the above technical problems, this invention provides a combined hose joint for connecting with another device and transmitting fluid, including a tube core, a step portion with a larger diameter and a diameter extending axially from the step portion A smaller first joint part; a pipe part, including a second joint part butt jointed with the first joint part, the first and second joint parts are respectively provided with threaded sections, and the first and second joint parts are threaded Segment screwing; the butt nut includes a butt part and a clamping part, the butt part is used to connect with the other device, the diameter of the clamping part is smaller than the step part and larger than the first joint part, and the butt nut is positioned towards The direction of the other device is maintained on the tube core; a seal is provided between the tube part and the tube core.

Description of drawings

Figure 1 is a three-dimensional schematic diagram of the combined hose joint of this invention.

Figure 2 is a partial cross-sectional schematic view of the combined hose joint in Figure 1.

Figure 3 is a schematic diagram of the combination of the tube core and the tube part in the second embodiment.

Figure 4 is a schematic diagram of the combination of the tube core and the tube part in the third embodiment.

Figure 5 is a schematic diagram of the combination of the tube core and the tube part in the fourth embodiment.

Detailed ways

The following is a clear and complete description of the combined hose joint of this invention in conjunction with Figures 1-5.

Referring to Figure 1-2, a combined hose joint is used to connect with another device and transmit fluid. It includes a tube core 1, a tube part 2, and a butt nut 3. A seal is provided between the tube part 2 and the tube core 1. 4.

The tube core 1 includes a step portion 11 with a larger diameter and a first joint portion 12 with a smaller diameter extending axially from the step portion 11 . The first joint portion 12 is provided with a first body portion 13 with a thicker wall. and a thin first tongue portion 14 extending from the first body portion 13 . The pipe part 2 includes a second joint part 21 butted with the first joint part 12. The second joint part 21 of the pipe part 2 is provided with a thicker second body part 22 and a second body part 22 from the second body part 22. A second tongue portion 23 with a thin wall thickness is formed by extension. The first joint portion 12 of the tube core 1 is disposed on the radially inner side, and the second joint portion 21 of the tube portion is disposed on the radial outer side of the first joint portion 12 . The first tongue portion 14 of the first joint portion 12 cooperates with the second body portion 22 of the second joint portion 21 , and the first body portion 13 of the first joint portion 12 cooperates with the second tongue portion of the second joint portion 21 . The plate portion 23 matches. The first and second joint parts 12 and 21 are respectively provided with threaded sections. In this embodiment, a threaded section is provided between the first body part 13 and the second tongue part 23. The first and second joint parts 12 and 21 are screwed together through threaded sections and fixed to each other.

A sealing member 4 is provided between the first tongue portion 14 and the second body portion 22. In an optional embodiment, the sealing member 4 includes a sealing ring 41 and a sealing ring disposed on one axial side of the sealing ring 41. , the retaining ring 42 that supports the sealing ring 41.

Referring to FIG. 2 , the butt nut 3 includes a butt part 31 and a clamping part 32 . The butt part 31 is used to connect with the other device. The diameter of the clamping part 32 is smaller than the step part 11 and larger than the first joint part 12 , then after the first joint portion 12 of the tube core 1 passes through the butt nut 3, the step portion 11 will be held by the holding portion 32 of the butt nut 3, and the butt nut 3 will be held in the direction toward the other device. remain on die 1.

The tube core 1 is provided with an internal hexagonal counterbore 33 at one end facing the other device. The internal hexagonal counterbore 33 can facilitate the operator to use a tool to operate the tube core 1 and screw the tube core 1 to the tube part 2 .

By using the butt nut 3 to connect the device and the tube core 1, the butt nut 3 can be designed with full torque and can be applied to high-pressure and ultra-high-pressure environments. At the same time, stable quality performance can be achieved during the life cycle to avoid premature failure. In addition, the hole diameter of the core 1 of this combined hose joint is consistent from front to back and there is no shrinking bottleneck section. It can also flow a large flow of liquid in a high-pressure environment.

In the second embodiment, referring to FIG. 3 , the first joint portion 112 of the tube core 111 is disposed on the radially outer side, and the second joint portion 122 of the tube portion 121 is disposed on the radial inner side of the first joint portion 112 . The second joint part 122 is provided with a second body part 123. The first joint part 112 is provided with a first tongue part 113. The first tongue part 113 or the second body part 123 is used to sleeve the seal 4 A groove 124 for accommodating the seal 114 is provided at a position.

Referring to Figures 4-5, in other embodiments, the axial positions of the threaded section and the seal 4 can be interchanged with each other.

In various embodiments, with reference to Figures 2 to 5, the seal further includes a sealing ring disposed on the axial end surface of the tongue plate portion of the tube core 1 and/or the tube portion 2 to achieve better Sealing effect.

The above technical solutions are only illustrative of the embodiments of this invention and are not limitations of this invention. All equivalent changes made by those skilled in the art based on the creation of this invention belong to the protection scope of this invention.

Claims (10)

1. A modular hose connector for connection to another device and for fluid transfer, comprising: comprising

The tube core comprises a step part with a larger diameter and a first joint part with a smaller diameter, wherein the first joint part is formed by axially extending from the step part;

the pipe part comprises a second joint part which is butted with the first joint part, the first joint part and the second joint part are respectively provided with a thread section, and the first joint part and the second joint part are screwed by the thread sections;

the butt joint nut comprises a butt joint part and a clamping part, the butt joint part is used for being connected with the other equipment, the diameter of the clamping part is smaller than that of the step part and larger than that of the first joint part, and the butt joint nut is kept on the tube core in the direction facing the other equipment;

a seal is disposed between the tube portions and the die.

2. The combination hose connector of claim 1, wherein: the first joint part of the tube core and the second joint part of the tube part are respectively provided with a thicker body part and a thinner tongue plate part which is formed by extending from the body part, the first tongue plate part of the first joint part is matched with the second body part of the second joint part, and the first body part of the first joint part is matched with the second tongue plate part of the second joint part.

3. The combination hose connector of claim 2, wherein: a sealing element and a thread section are respectively arranged between the first tongue plate part and the second body part and between the first body part and the second tongue plate part.

4. The combination hose connector of claim 1, wherein: the first joint of the tube core is arranged on the radial inner side, and the second joint of the tube part is arranged on the radial outer side of the first joint.

5. The combination hose connector of claim 1, wherein: the first joint of the tube core is arranged on the radial outer side, and the second joint of the tube part is arranged on the radial inner side of the first joint.

6. A modular hose connector according to claim 3, wherein: the tongue plate part or the body part is provided with a groove for accommodating the sealing element at the position for sleeving the sealing element.

7. The combination hose connector of claim 6, wherein: the seal comprises a seal ring.

8. The combination hose connector of claim 7, wherein: the sealing piece further comprises a check ring which is arranged on one axial side of the sealing ring and used for supporting the sealing ring.

9. The combination hose connector of claim 1, wherein: the seal also includes a seal ring disposed on an axial end face of the die and/or the flapper portion of the tube portion.

10. The combination hose connector of claim 1, wherein: one end of the tube core facing the other device is provided with an inner hexagonal counter bore.