CN114151625A

CN114151625A - Flexible pipe

Info

Publication number: CN114151625A
Application number: CN202111418375.6A
Authority: CN
Inventors: 赖建萍; 张静然; 李丽; 谢佳霖
Original assignee: Shanghai Lvli Tool Industry Co ltd
Current assignee: Shanghai Lvli Tool Industry Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-03-08

Abstract

The application relates to the technical field of pipelines, in particular to a hose, which comprises a hose body and a joint; the pipe body comprises a main body and a transition part which are arranged in sequence, and the transition part is arranged in a conical cylinder shape; the smaller end of the transition part is connected with the main body, and the larger end of the transition part is connected with the joint. Because transition portion is the setting of awl tube-shape, consequently, the whole difficult production of transition portion is buckled to difficult because of buckling repeatedly and causing the phenomenon of ageing fracture, effectively guarantee the life of transition portion and body.

Description

Flexible pipe

Technical Field

The application relates to the technical field of pipelines, in particular to a hose.

Background

Rubber hoses are widely used in various fields, and are mostly used as air pipes or water pipes.

A common hose generally includes a pipe body and a nipple provided at an end of the pipe body. The hose is typically made of rubber, while the fitting is typically made of metal or rigid plastic.

Because the hose generally can have the phenomenon of buckling after the installation, and when the junction of body and joint produced and buckles, produce comparatively serious friction between body and the joint easily to cause the body fracture or wearing and tearing easily, influence the life of hose.

Disclosure of Invention

The application provides a hose, has higher life.

The application provides a hose adopts following technical scheme:

a hose comprises a hose body and a joint; the pipe body comprises a main body and a transition part which are sequentially arranged, and the transition part is arranged in a conical cylinder shape; the smaller end of the transition part is connected with the main body, and the larger end of the transition part is connected with the joint.

Through adopting above-mentioned technical scheme, transition portion is the setting of awl tube-shape, consequently, the whole difficult production of transition portion is buckled to difficult because of buckling repeatedly and causing the phenomenon of ageing fracture, effectively guarantee the life of transition portion and body.

Preferably, the joint comprises an inner ring and an outer ring, one end of the inner ring is positioned at the inner side of the transition part and is arranged in a conical surface fit with the inner wall of the transition part; the outer ring is sleeved on the outer side of the transition part and connected with the inner ring, the inner side of the outer ring is provided with a clamping part, and the clamping part is abutted against the outer side wall of the transition part;

the end with the smaller diameter of the transition part extends to the outside of the outer ring.

Through adopting above-mentioned technical scheme, inner circle and outer lane can carry out the centre gripping to transition portion to the stability of being connected between transition portion and the joint can be guaranteed to clamping part, thereby guarantees the life of hose.

Preferably, a plurality of first convex rings are arranged on the outer side wall of the transition part, and the first convex rings are arranged around the periphery of the transition part; a plurality of first bulge loop is along the axial distribution of transition portion, and is adjacent form first spacing groove between the first bulge loop, be provided with on the clamping part with first spacing groove joint complex first lug, and first lug and first bulge loop butt.

Through adopting above-mentioned technical scheme, first lug and first bulge loop butt can promote the stability of being connected between structure and the body on the one hand, and on the other hand, transition portion does not directly have direct contact with clamping part to play the guard action to transition portion.

Preferably, a plurality of second convex rings are arranged on the inner wall of the transition part; the second convex ring is arranged around the periphery of the transition part; the plurality of second convex rings are distributed along the axial direction of the transition part; and a second limiting groove is formed between every two adjacent second convex rings, a second convex block matched with the second limiting groove in a clamping mode is arranged on the inner ring, and the second convex block is abutted against the second convex rings.

Through adopting above-mentioned technical scheme, the stability of being connected between transition portion and the joint can be promoted on the one hand in the setting of second lug and second bulge loop, and on the other hand can promote the intensity of transition portion to transition portion is difficult direct and the inner circle contact, thereby plays the guard action to transition portion, promotes the life of transition portion.

Preferably, the pipe body is further including setting up the connecting portion in the great one end of transition portion diameter, connecting portion are the tubulose setting and the cover is established on the inner circle, inner circle and connecting portion interference fit.

Through adopting above-mentioned technical scheme, can effectively guarantee the stability of being connected between joint and the body through connecting portion to under the effect of connecting portion, the transition portion is difficult for producing direct interact power with connecting, effectively guarantees the life-span of transition portion.

Preferably, the outer side wall of the inner ring is provided with a first external thread.

Through adopting above-mentioned technical scheme, first external screw thread can extrude connecting portion to effectively promote the stability of being connected between connecting portion and the inner circle, can play sealed effect simultaneously.

Preferably, the outer ring is sleeved on the connecting part; and an internal thread is formed on the inner wall of the outer ring and is in interference fit with the connecting part.

Through adopting above-mentioned technical scheme, the internal thread can exert the extrusion force to connecting portion, effectively guarantees the stability of being connected between outer lane and the connecting portion to can promote the leakproofness.

Preferably, a gasket is arranged around the outer side of the inner ring, and a second external thread matched with the internal thread is arranged on the outer side wall of the gasket.

Through adopting above-mentioned technical scheme, the packing ring can with outer lane threaded connection to effectively promote the stability of being connected between outer lane and the inner circle, effectively guarantee the life who connects.

Preferably, the inner ring is arranged in a taper shape towards the inner wall of one end of the transition part and is arranged opposite to the inner wall of the transition part.

Through adopting above-mentioned technical scheme, can reduce the length of the outer conical surface of inner circle to a certain extent to reduce the area of contact between inner circle and the transition portion, thereby make difficult emergence mutual interference between inner circle and the transition portion, promote the life of hose.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the transition part is arranged in a cone shape, so that the transition part is not easy to bend integrally, the phenomenon of aging and cracking caused by repeated bending is not easy to occur, and the service lives of the transition part and the pipe body are effectively ensured;

2. the setting of first external screw thread and second external screw thread can effectively promote the joint strength between joint and the body, can also guarantee the leakproofness between joint and the body, the use of the hose of being convenient for.

Drawings

FIG. 1 is a sectional view showing the structure of a hose in the embodiment of the present application;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the drawings, the reference numbers: 1. a pipe body; 11. a main body; 12. a transition section; 121. a first convex ring; 122. a second convex ring; 13. a connecting portion; 2. a joint; 21. an inner ring; 211. a first external thread; 212. a second bump; 22. a gasket; 221. a second external thread; 23. an outer ring; 231. an internal thread; 24. a clamping portion; 241. a first bump.

Detailed Description

The present invention is described in further detail below with reference to FIGS. 1-2.

The embodiment of the application discloses a hose. Referring to fig. 1, the hose includes a pipe body 1 and a nipple 2. The tube body 1 may be made of soft material such as rubber. Body 1 is including the main part 11, transition portion 12 and the connecting portion 13 that set gradually, and transition portion 12 wholly is the setting of awl tube-shape, and connecting portion 13 and main part 11 all are the setting of pipe form. The main body 11 is located at the end of the transition portion 12 where the diameter is smaller, and the diameter of the main body 11 is the same as the diameter of the small end of the transition portion 12. The connecting portion 13 is located at the end of the transition portion 12 where the diameter is larger, and the diameter of the connecting portion 13 is the same as the diameter of the large end of the transition portion 12. The main body 11 and the connecting portion 13 are integrally formed with the transition portion 12.

Referring to fig. 1, the joint 2 includes an inner ring 21 and an outer ring 23, one end of the inner ring 21 is provided with a washer 22, the washer 22 is circumferentially provided on the connection portion 13 and is integrally formed with the connection portion 13, and a second external thread 221 is provided on an outer side wall of the washer 22.

Referring to fig. 1, the outer side wall of the inner ring 21 is provided with a first external thread 211, so that the inner ring 21 can be screwed into the inner side of the connecting portion 13, and the connecting portion 13 is interference-fitted with the inner ring 21, thereby allowing the connecting portion 13 to be tightly fitted on the inner ring 21. Because the connecting portion 13 is made of soft material, the inner wall of the connecting portion 13 forms a thread groove under the pressing action of the first external thread 211 and is in threaded connection with the first external thread 211, so that the connection stability between the inner ring 21 and the connecting portion 13 is ensured.

Referring to fig. 1, when the inner ring 21 is coupled to the coupling portion 13, the washer 22 is located outside the coupling portion 13, and an end of the inner ring 21 remote from the washer 22 is located inside the coupling portion 13. One end of the inner ring 21 positioned in the connecting part 13 is arranged in a conical surface manner and can be attached to the inner wall of the transition part 12.

The inner wall of the inner ring 21 is tapered toward one end of the transition part 12, so that the length of the tapered surface of the inner ring 21 can be effectively reduced, and the contact area between the inner ring 21 and the transition part 12 can be reduced to a certain extent.

Referring to fig. 1 and 2, a plurality of second convex rings 122 are arranged on the inner wall of the transition portion 12, the second convex rings 122 are arranged around the axis of the transition portion 12 and are integrally formed with the transition portion 12, and the plurality of second convex rings 122 are distributed along the axial direction of the transition portion 12 at intervals, so that a second limiting groove is formed between two adjacent second convex rings 122, a second convex block 212 in clamping fit with the second limiting groove is arranged on the inner ring 21, and the second convex block 212 is tightly abutted against the side wall of the second convex ring 122, so that no interaction force exists between the transition portion 12 and the second convex ring 122, and the transition portion 12 can be protected.

Referring to fig. 1, when the connecting portion 13 is connected to the inner ring 21, the outer ring 23 can be sleeved on the connecting portion 13 and interference-fit with the connecting portion 13. The inner wall of the outer ring 23 is provided with an internal thread 231, the internal thread 231 applies a pressing force to the connecting portion 13, and under the pressing action of the internal thread 231, a thread groove matched with the first internal thread 231 can be formed on the outer wall of the connecting portion 13, so that the connecting portion 13 and the outer ring 23 are stably connected.

Referring to fig. 1, while the internal thread 231 can be engaged with the second external thread 221, thereby connecting the inner ring 21 and the outer ring 23 to each other.

Referring to fig. 1 and 2, a clamping portion 24 is provided at an end of the outer ring 23 away from the washer 22, the clamping portion 24 is provided in a tapered cylindrical shape, and an end of the clamping portion 24 having a larger diameter is integrally formed with the outer ring 23. The inner wall of the clamping portion 24 abuts the outer side wall of the transition portion 12.

Referring to fig. 1 and 2, a plurality of first convex rings 121 are arranged on the outer side wall of the transition portion 12, the first convex rings 121 are arranged around the circumferential side of the transition portion 12, and are distributed along the axial direction of the transition portion 12, and a first limit groove is formed between adjacent first convex rings 121.

Referring to fig. 1 and 2, a first projection 241 is integrally formed on an inner wall of the clamping portion 24, and the first projection 241 abuts against the first collar 121. Under the action of the first convex ring 121, the transition portion 12 does not contact with the first convex block 241, so that no direct interaction force exists between the clamping portion 24 and the transition portion 12, and the transition portion 12 is effectively protected.

The implementation principle of a hose in the embodiment of the application is as follows: the outer ring 23 is sleeved on the pipe body 1 in advance, then the inner ring 21 is connected with the connecting part 13, then the outer ring 23 is rotated to enable the outer ring 23 to be sleeved on the connecting part 13, and finally the outer ring 23 is connected with the gasket 22, so that the pipe body 1 and the joint 2 can be connected.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A hose, characterized by: comprises a pipe body (1) and a joint (2); the pipe body (1) comprises a main body (11) and a transition part (12) which are sequentially arranged, and the transition part (12) is arranged in a conical cylinder shape; the end with the smaller diameter of the transition part (12) is connected with the main body (11), and the end with the larger diameter is connected with the joint (2).

2. A hose according to claim 1, wherein: the joint (2) comprises an inner ring (21) and an outer ring (23), one end of the inner ring (21) is positioned on the inner side of the transition part (12) and is arranged in a conical surface fit with the inner wall of the transition part (12); the outer ring (23) is sleeved on the outer side of the transition part (12) and connected with the inner ring (21), a clamping part (24) is arranged on the inner side of the outer ring (23), and the clamping part (24) is abutted to the outer side wall of the transition part (12);

the end with the smaller diameter of the transition part (12) extends to the outside of the outer ring (23).

3. A hose according to claim 2, wherein: the outer side wall of the transition part (12) is provided with a plurality of first convex rings (121), and the first convex rings (121) are arranged on the peripheral side of the transition part (12) in a surrounding manner; a plurality of first bulge loop (121) are along the axial distribution of transition portion (12), and are adjacent form first spacing groove between first bulge loop (121), be provided with on clamping part (24) with first spacing groove joint complex first lug (241), and first lug (241) and first bulge loop (121) butt.

4. A hose according to claim 3, wherein: a plurality of second convex rings (122) are arranged on the inner wall of the transition part (12); the second convex ring (122) is arranged around the periphery of the transition part (12); a plurality of second convex rings (122) are distributed along the axial direction of the transition part (12); two adjacent second bulge loops (122) form the second spacing groove between, be provided with on inner circle (21) with second spacing groove joint complex second lug (212), second lug (212) and second bulge loop (122) butt.

5. A hose according to claim 2, wherein: the pipe body (1) further comprises a connecting portion (13) arranged at one end, with the diameter being larger, of the transition portion (12), the connecting portion (13) is in a tubular shape and is sleeved on the inner ring (21), and the inner ring (21) and the connecting portion (13) are in interference fit.

6. A hose according to claim 5, wherein: a first external thread (211) is arranged on the outer side wall of the inner ring (21).

7. A hose according to claim 6, wherein: the outer ring (23) is sleeved on the connecting part (13); an inner thread (231) is formed in the inner wall of the outer ring (23), and the inner thread (231) is in interference fit with the connecting portion (13).

8. A hose according to claim 6, wherein: and a washer (22) is arranged around the outer side of the inner ring (21), and a second external thread (221) matched with the internal thread (231) is arranged on the outer side wall of the washer (22).

9. A hose according to claim 2, wherein: the inner ring (21) is arranged towards the inner wall of one end of the transition part (12) in a conical shape and is opposite to the inner wall of the transition part (12).