CN202228822U

CN202228822U - Tubing connection structure

Info

Publication number: CN202228822U
Application number: CN2011203737543U
Authority: CN
Inventors: 谢二文
Original assignee: FOSHAN DEXINGYE METAL TECHNOLOGY CO LTD
Current assignee: Foshan City Cheung Tyrone Pioneer Metals Corp; Guangdong Xingye Metal Technology Co.,Ltd.
Priority date: 2011-09-27
Filing date: 2011-09-27
Publication date: 2012-05-23
Anticipated expiration: 2021-09-27

Abstract

The utility model discloses a tubing connection structure, which is capable of being detached, convenient for maintenance and transformation of a tube network and reliable in sealing and comprises a first tubing and a second tubing. A tube opening of the second tubing is inserted into a bearing opening of the first tubing, a sealing ring and a C-shaped clamping ring are arranged between the two tube walls, a first concave groove ring from the inside to the outside is formed at the bearing opening of the first tubing, and the C-shaped clamping ring is arranged in the first concave groove ring. A second concave groove ring from the outside to the inside is formed on the outer wall of the tube opening of the second tubing and clamped and locked by the C-shaped clamping ring.

Description

A kind of linkage structure of tubing

Technical field:

The utility model relates to a kind of linkage structure of tubing.

Background technique:

The pipe connecting structure of existing technology includes the clamp-press type connection and is connected with the ring pressure.

It is having the bellmouth pipe fitting connecting tube of seal ring that clamp-press type connects, and compresses the mouth of pipe and plays and seal and a kind of Placement of fastening effect with special tool.During assembling, Stainless Steel Tube is inserted in the pipe fitting, press with special-purpose envelope press tool envelope, pipe fitting, pipe that the envelope splenium divides are squeezed into hexagon, thereby form corresponding join strength, simultaneously because the compressive strain of seal ring produces seal action.The pipe fitting cost is lower, and project installation is simple, and speed of application is fast.

It is that the tubing that puts rectangular seal is in advance inserted the bellmouth that ring is pressed pipe fitting that ring is pressed connection, and stable section and seal section from the outside to bellmouth are along the circumferential direction exerted pressure.In the compacting, locked by locking after the tubing concave deformation of the stable section of bellmouth together with insertion; Make sealing material move with the slit between abundant filling tubing and the pipe fitting to exerting pressure of seal section two ends, thereby realize effective sealing of tubing and pipe fitting in the cavity internal strain.

No matter be that clamp-press type connects tubing or ring is pressed connection tubing, in case realize connecting, two connecting tubes are can not split to come again; The connection of tubing is irreversible; In case occur leaking when perhaps pipe network being transformed, just can only reuse new tubing to former tubing discarded; And the connection of new tubing all need use special tool to carry out the pressure type connection or ring is pressed connection, and maintenance and renovation is very inconvenient.In addition; Above-mentioned two kinds of Placements all are through making the mouth of pipe produce distortion, and the gap that produces when utilizing the elasticity of seal ring to stop up distortion and realizing connects, and the tubing sealing of these two kinds of linkage structures is very unreliable; This is because seal ring is oppressed distortion; After tubing used a period of time, if ageing hardening appears in seal ring, when becoming fragile, the sealing between two tubing will be lost efficacy.

Summary of the invention:

The purpose of the utility model is in order to overcome the shortcoming of above-mentioned existing technology, to provide a kind of and realize dismounting, make things convenient for pipe network maintenance and transformation, reliable sealing pipe connecting structure.

For realizing above-mentioned purpose, the technological scheme that the utility model provides is: a kind of linkage structure of tubing includes first tubing and second tubing; The mouth of pipe of second tubing injects the bellmouth of first tubing; Be provided with seal ring and C shape snap ring between two tube walls, in the bellmouth of first tubing, form the first spill grooved ring from inside to outside, C shape snap ring places in the first spill grooved ring; The outer wall of the second tubing mouth of pipe forms the ecto-entad second spill grooved ring, and C shape snap ring blocks and lock the second spill grooved ring.

Because the first spill grooved ring of first tubing is a broad spill grooved ring; Two ends are wedge shape tapering position, and after C shape snap ring tightened second tubing, second tubing can also be in axial sliding in the first spill grooved ring; When C shape snap ring chucking position slides into the wedge shape position; The compressing C shape snap ring that progressively diminishes of first pipe internal diameter makes second tubing can not throw off or excessively get into the bellmouth of first tubing, has satisfied the requirement of expanding with heat and contract with cold in the tubing using process when realizing locking.

In the bellmouth of first tubing, form the 3rd spill grooved ring from inside to outside, the ring body of seal ring partly imbeds the 3rd spill grooved ring, and internal diameter of the seal ring is slightly less than second tube outer diameter.

After said structure improves, utilize C shape ring to connect between the two connection tubing, utilize seal ring to realize sealing; Two tubing can be dismantled after connecting at any time; And connect again, realize reusing, avoid causing the wasting of resources; And oppress the seal ring between two tubing is inhomogeneous deformation not occur; Seal ring resiliently deformable and make resiliently deformable all the time in seal ring material capability allowed band in the middle of the tube wall of the 3rd spill grooved ring of first tubing and second tubing, therefore use long-time after, the sealing between the tubing is still very reliable; Simultaneously the outer wall of second tubing can be in axial sliding with seal ring and sealing function is constant, guarantees the sealing under the state that expands with heat and contract with cold of tubing.

Description of drawings:

Fig. 1 is the decomposition sectional structure chart of the utility model pipe connecting structure;

Fig. 2 is the structural drawing in C shape snap ring and seal ring to the first tubing that presets of the utility model pipe connecting structure;

Fig. 3 is that second tubing of the utility model pipe connecting structure injects the structural drawing when passing through C shape snap ring;

Fig. 4 is that second tubing of the utility model pipe connecting structure injects the structural drawing when passing through seal ring;

Fig. 5 is that two tubing of the utility model pipe connecting structure are accomplished the structural drawing after connecting.

Embodiment:

Combine accompanying drawing to set forth the utility model in detail at present:

The linkage structure of the tubing of present embodiment includes first tubing 1 and second tubing 2; The mouth of pipe of second tubing 2 injects the bellmouth of first tubing 1; Be provided with seal ring 3 and C shape snap ring 4 between two tube walls, the outer wall that in the bellmouth of first tubing 1, forms the first spill grooved ring, 11, the second tubing, 2 mouths of pipe forms the second spill grooved ring 21; The first spill grooved ring 11 and the second spill grooved ring 21 block C shape snap ring 4 simultaneously; The diameter of the first spill grooved ring 11 is more bigger than the external diameter of C shape snap ring 4, in the bellmouth of first tubing 1, forms the 3rd spill grooved ring 12, and the ring body of seal ring 3 partly imbeds the 3rd spill grooved ring 12.

During installation, with the corresponding respectively first spill grooved ring 11 and the 3rd spill grooved ring of putting in first tubing, 1 bellmouth 12 interior (as shown in Figure 2) of C shape snap ring 4 and seal ring 3, then the operator holds first tubing 1 on the other hand in advance; The another hand is held second tubing 2, and second tubing 2 is injected in first tubing, 1 bellmouth, when running into C shape snap ring 4; The existence of the first spill grooved ring 11 and its diameter continue to grant bigger power, owing to will force C shape snap ring 4 to open greater than the external diameter of C shape snap ring 4; Make second tubing 2 smoothly through (as shown in Figure 3), when running into seal ring 3, bigger power when granting than running into C shape snap ring 4; Second tubing 2 forces seal ring 3 distortion and passes through (as shown in Figure 4) smoothly; At this moment the sealing effect of seal ring 3 produces, and continues to advance second tubing 2, runs into the second spill grooved ring 21 on second tubing, 2 outer walls up to C shape snap ring 4; Under the effect of C shape snap ring 4 self spring-back force; The inside part of the annular width of C shape snap ring 4 sticks into the second spill grooved ring 21, and at this moment, the external lateral portion of the annular width of C shape snap ring 4 still keeps blocking the first spill grooved ring 11; Thereby realize two tubing are linked together (as shown in Figure 5), seal ring 3 keeps sealing state.

The above only is the preferred embodiment of the utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art; Do not breaking away under the utility model technological scheme scope situation; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to the utility model technological scheme, or are revised as the equivalent embodiment of equivalent variations.So every content that does not break away from the utility model technological scheme, the equivalence of doing according to shape, structure and the principle of the utility model changes, and all should be covered by in the protection domain of the utility model.

Claims

1. the linkage structure of a tubing; Include first tubing and second tubing; The mouth of pipe of second tubing injects the bellmouth of first tubing, it is characterized in that: be provided with seal ring and C shape snap ring between two tube walls, in the bellmouth of first tubing, form the first spill grooved ring; The outer wall of the second tubing mouth of pipe forms the second spill grooved ring, and the first spill grooved ring and the second spill grooved ring block C shape snap ring simultaneously.

2. the linkage structure of a kind of tubing according to claim 1, it is characterized in that: in the bellmouth of first tubing, form the 3rd spill grooved ring, the ring body of seal ring partly imbeds the 3rd spill grooved ring.