CN111006081B

CN111006081B - Clamping sleeve type connection flared plastic pipe fitting

Info

Publication number: CN111006081B
Application number: CN201911208631.1A
Authority: CN
Inventors: 张鹏; 蒋三军; 王建; 李孝武
Original assignee: Anhui Jinhaotian Plastics Technology Development Co ltd
Current assignee: Anhui Jinhaotian Plastics Technology Development Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2021-06-29
Anticipated expiration: 2039-11-30
Also published as: CN111006081A

Abstract

The invention relates to the technical field of pipe fittings, in particular to a clamping sleeve type connecting flaring type plastic pipe fitting which comprises a pipe fitting, wherein a communicated pipe hole is formed in the inner cavity of the pipe fitting, the pipe fitting comprises a narrow-mouth joint and a flaring joint, a first nut is in threaded connection with the outer wall of the pipe fitting close to the middle part, the first nut comprises a joint sleeve and a flaring sleeve, the inner wall of the joint sleeve is in threaded connection with the outer wall of the narrow-mouth joint, the flaring sleeve is in threaded connection with the outer wall of the flaring joint, a fixed block is in threaded connection with the outer wall of the narrow-mouth joint, a limiting rod is arranged between the fixed block and the joint sleeve, the end part of the limiting rod is fixedly connected with a buffer block, the end part of the buffer block is provided with a buffer spring, the outer wall of the flaring joint is in threaded connection with, the nut is easy to produce, impact-resistant, capable of effectively preventing the first nut from shaking, stable and sound-proof.

Description

Clamping sleeve type connection flared plastic pipe fitting

Technical Field

The invention relates to the technical field of pipe fittings, in particular to a clamping sleeve type connecting flaring type plastic pipe fitting.

Background

The pipe joint is a part for connecting a pipeline in a hydraulic system or installing the pipeline on a hydraulic component, is a general name of a connecting piece which can be assembled and disassembled in a fluid passage, and mainly comprises a welding type, a clamping sleeve type and a flaring type, wherein the flaring type pipe joint is suitable for a medium: the pipe joints of non-corrosive or corrosive media such as oil, water, gas and the like (wherein representative manufacturers include Shanghai Tong male pipe fittings Co., Ltd.) have the characteristics of flexible specification requirements of matched steel pipes, firm connection, good sealing performance and the like after being welded with pipelines, so the pipe joints are widely applied to systems such as oil refining, chemical engineering, light industry, textile, national defense, metallurgy, aviation, ships and the like; also be applicable to various mechanical engineering, hydraulic transmission pipeline such as lathe equipment, but present cutting ferrule formula connection flared body matching nature is not strong, and difficult production, and when the fluid impact force is big, can cause very big noise, traditional cutting ferrule formula connection flared pipe fitting can not be fine carry out sound insulation treatment, and can not fine anti-vibration and impact force, the nut easily leads to nut and body to be connected insecure along with the vibrating motion, fault such as broken the revealing of pipeline easily appears, in view of this, we provide a cutting ferrule formula connection flared type plastic pipe spare.

Disclosure of Invention

The invention aims to provide a ferrule type connection flared plastic pipe fitting to solve the problems that the common flared pipe body in the background art cannot resist impact force, the first nut is not firmly connected with the pipe body, and sound insulation cannot be realized.

In order to achieve the purpose, the invention provides the following technical scheme:

a clamping sleeve type connection flared plastic pipe fitting comprises a pipe fitting and a first nut, wherein a communicated pipe hole is formed in an inner cavity of the pipe fitting, the pipe fitting comprises a thin port joint and a flared joint, the pipe fitting is in threaded connection with a first nut close to a middle outer wall, the first nut comprises a joint sleeve and a flared sleeve, an inner wall of the joint sleeve is in threaded connection with an outer wall of the thin port joint, the flared sleeve is in threaded connection with an outer wall of the flared joint, a fixed block is in threaded connection with the outer wall of the thin port joint, a limiting rod is arranged between the fixed block and the joint sleeve, a buffer block is fixedly connected to the end part of the limiting rod, a buffer spring is arranged at the end part of the buffer block, a protective sleeve is in threaded connection with an outer wall of the flared joint, a second nut is in threaded connection with the outer wall of the protective sleeve, the inner cavity of the sound insulation cavity is provided with sound insulation cotton.

Preferably, the thin-mouth joint and the flaring joint are of an integrally formed structure, and the diameter of the section of the thin-mouth joint is smaller than that of the section of the flaring joint.

Preferably, the inner cavity of the pipe fitting is provided with pipe holes matched with each other, and the pipe thickness of the thin-opening joint is the same as that of the flaring joint.

Preferably, one side of the fixing block, which is close to the first nut, is fixedly connected to one end, which is far away from the buffer block, of the limiting rod, and one side, which is close to the fixing block, of the joint sleeve is provided with a first nut buffer groove.

Preferably, the buffer block with buffer spring all sets up in first nut dashpot inner chamber, first nut dashpot inner chamber with buffer block looks adaptation, the buffer block slides and sets up first nut dashpot inner chamber, buffer spring tip fixed connection be in first nut dashpot inner chamber bottom.

Preferably, the inner wall of the joint sleeve is in tight fit with the outer wall of the narrow-mouth joint through threads, the inner wall of the flaring sleeve is in tight fit with the outer wall of the flaring joint through threads, and the joint sleeve and the flaring sleeve are of an integrally formed structure.

Preferably, the outer wall of the upper end of the protective sleeve is in threaded tight fit with the inner wall of the flaring sleeve, and the inner wall of the protective sleeve is in threaded tight fit with the flaring joint.

Preferably, the sound insulation cavity is annular, and the sound insulation cavity is located protective sheath upper end inner chamber.

Preferably, the sound insulation cavity is matched with the sound insulation cotton, and the sound insulation cotton is tightly filled in the sound insulation cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. this flared formula pipe fitting is connected to cutting ferrule formula, through setting up first nut and pipe fitting looks adaptation, can protect the pipe fitting, when the medium flows the flared joint from the thin mouthful of joint, the impact force can change, thereby the noise is great, can the noise abatement through soundproof cotton setting in the sound proof chamber, from not influencing people's normal life, and through setting up protective sheath and pipe fitting screw-thread fit, can protect the pipe fitting, it is too big to flow the impact force from the flared joint when avoiding fluid to flow, avoid damaging the pipe fitting.

2. This flared formula pipe fitting is connected to cutting ferrule formula through setting up the gag lever post, can carry on fixed block and first nut spacingly, prevents that first nut from moving at will to it is more firm to make to connect between pipe fitting and the first nut.

3. According to the ferrule type flared pipe fitting, the buffer spring is arranged, so that the shaking of the limiting rod can be relieved, the situation that the limiting rod is easily damaged due to the fact that the first nut and the limiting rod are extruded is avoided, and the service life of the ferrule type flared pipe fitting is prolonged.

4. This flared formula pipe fitting is connected to cutting ferrule formula connects through setting up the tang with the flare connects as an organic whole structure, simple structure, and the production of being convenient for connects the pipe fitting, convenient to detach installation through tang joint and flare joint.

Drawings

FIG. 1 is a schematic view of the overall structural assembly of the present invention;

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a side cross-sectional view of the overall structure of the present invention;

FIG. 4 is a partial schematic view of the structure at point A of the present invention;

FIG. 5 is a partial schematic view of the structure at B in the present invention.

In the figure: 1. a pipe fitting; 10. a tube hole; 11. a thin-port joint; 12. a flaring joint; 2. a fixed block; 3. a first nut; 30. a first nut buffer slot; 31. a joint sleeve; 32. an opening expanding sleeve; 4. a second nut; 5. a protective sleeve; 51. a sound-insulating chamber; 52. sound insulation cotton; 6. a limiting rod; 61. a buffer block; 62. a buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "centerline", "longitudinal", "lateral", "length", "width", "thickness", "depth", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the invention, also in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

A ferrule type connection flared plastic pipe fitting, in order to solve the problems that the common flared pipe fitting cannot resist impact force and the first nut is not firmly connected with the pipe fitting, as a preferred embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the pipe fitting comprises a pipe fitting 1, a communicating pipe hole 10 is arranged in the inner cavity of the pipe fitting 1, the pipe fitting 1 comprises a narrow-mouth joint 11 and a flared joint 12, the first nut 3 is connected with the outer wall of the pipe fitting 1 close to the middle part in a threaded manner, the first nut 3 comprises a joint sleeve 31 and a flared sleeve 32, the inner wall of the joint sleeve 31 is connected with the outer wall of the narrow-mouth joint 11 in a threaded manner, the flared sleeve 32 is connected with the outer wall of the flared joint 12 in a threaded manner, the outer wall of the narrow-mouth joint 11 is connected with a fixed block 2 in a threaded manner, a limit rod 6 is arranged between the

fixed block

2 and, 5 outer wall threaded connection of protective sheath has

second nut

4, 5 outer wall threaded connection of protective sheath expand mouthful cover 32 inner wall, and sound insulation chamber 51 has been seted up to 5 inner chambers of protective sheath, and sound insulation chamber 51 inner chamber is provided with soundproof cotton 52.

In this example, the thin connector 11 and the flaring connector 12 are of an integrally formed structure, the section diameter of the thin connector 11 is smaller than that of the flaring connector 12, the structure is simple, the production is convenient, and the pipe fitting can be conveniently detached through the threaded connection of the thin connector 11 and the flaring connector 12.

Specifically, the inner cavity of the pipe fitting 1 is provided with a pipe hole 10 matched with the inner cavity of the pipe fitting, and the pipe thickness of the thin-opening joint 11 is the same as that of the flaring joint 12.

Further, the first nut buffer groove 30 is formed in one side, close to the fixed block 2, of the joint sleeve 31, the first nut 3 can be limited by the arrangement of the first nut buffer groove 30, the first nut is prevented from moving at will, and the pipe body can not be well protected.

Further, buffer block 61 and buffer spring 62 all set up at first nut dashpot 30 inner chamber, first nut dashpot 30 inner chamber and buffer block 61 looks adaptation, buffer block 61 slides and sets up at first nut dashpot 30 inner chamber, the first nut dashpot 30 inner chamber bottom of buffer spring 62 one end fixed connection, play the cushioning effect to buffer block 61 through buffer spring 62, when the fluid flow was crossed, can guarantee that first nut 3 can not move at will, it is stable to have guaranteed to be connected between thin mouthful of joint 11 and the body.

Furthermore, the inner wall of the joint sleeve 31 is closely matched with the outer wall of the narrow joint 11 through threads, the sealing performance is good, and the joint sleeve 31 and the flaring sleeve 32 are of an integrally formed structure and are convenient to produce.

Specifically, the outer wall of the upper end of the protective sleeve 5 is in close fit with the threads of the inner wall of the flaring sleeve 32, the inner wall of the protective sleeve 5 is in close fit with the threads of the flaring joint 12, and when fluid flows through the pipe hole 10 through the protective sleeve 5, the phenomenon that the impact force of the fluid is too large and the deformation is caused by the impact on the inner cavity of the pipe fitting can be avoided.

Further, the chamber 51 that gives sound insulation is the annular form, through setting up sound insulation chamber 51 can effectually give sound insulation through soundproof cotton 52 when the medium flows through 1 inner chamber of pipe fitting, sound insulation chamber 51 is located protective sheath 5 upper end inner chamber, when the medium flows to flaring joint 12 from thin mouthful of joint 11, the impact force can change to the noise is great, can the noise abatement through soundproof cotton 52, from not influencing people's normal life.

In addition, soundproof cotton 51 and soundproof cotton 52 looks adaptation, soundproof cotton 52 closely fill in soundproof cotton 51, and soundproof cotton 52 is an rubber and plastic goods, and sound insulation is thermal-insulated, antidetonation and corrosion-resistant very well to protection pipe fitting 1 does not corrode.

When the ferrule type flared pipe fitting is used, the pipe body is connected through the narrow joint 11 and the flared joint 12, the pipe body is connected and fixed through the first nut 3, when fluid passes through the pipe hole 10, the pipe fitting 1 can be protected through the protective sleeve 5, the sound insulation cotton 52 is filled in the sound insulation cavity 51, the sound insulation cotton 52 can well insulate sound and heat, resist shock and resist corrosion, so that the pipe fitting 1 is protected from erosion, excessive impact force is avoided, when a medium flows from the narrow joint 11 to the flared joint 12, the impact force can be changed, the noise is higher, the noise can be reduced through the sound insulation cotton 52, so that people can not affect normal life, the pipe fitting 1 is prevented from shaking and being damaged due to the impact force of the medium, the pipe fitting 1 can be ensured to be more stable, the buffer spring 62 is fixedly arranged in the inner cavity of the first nut buffer groove 30, and the buffer block 61 plays a buffer role through the, when fluid flows, the first nut 3 can not move freely by connecting the limiting rod 6 with the fixing block 2, and the pipe fitting 1 is ensured to be connected stably.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a flaring formula plastics pipe fitting is connected to cutting ferrule formula, includes pipe fitting (1) and first nut (3), its characterized in that: the pipe hole (10) of intercommunication is seted up to pipe fitting (1) inner chamber, pipe fitting (1) includes thin mouthful of joint (11) and flaring connects (12), pipe fitting (1) is close to middle part outer wall threaded connection have first nut (3), first nut (3) include adapter sleeve (31) and flaring cover (32), adapter sleeve (31) inner wall with thin mouthful of joint (11) outer wall threaded connection, flaring cover (32) with flaring connects (12) outer wall threaded connection, thin mouthful of joint (11) outer wall threaded connection has fixed block (2), be provided with gag lever post (6) between fixed block (2) and adapter sleeve (31), gag lever post (6) tip fixedly connected with buffer block (61), buffer block (61) tip is provided with buffer spring (62), flaring connects (12) outer wall threaded connection has protective sheath (5), protective sheath (5) outer wall threaded connection has second nut (4), protective sheath (5) outer wall threaded connection flaring cover (32) inner wall, sound insulation chamber (51) have been seted up to protective sheath (5) inner chamber, sound insulation chamber (51) inner chamber is provided with soundproof cotton (52).

2. The ferrule type connection flared plastic pipe fitting according to claim 1, wherein: the thin-mouth joint (11) and the flaring joint (12) are of an integrally formed structure, and the section diameter of the thin-mouth joint (11) is smaller than that of the flaring joint (12).

3. The ferrule type connection flared plastic pipe fitting according to claim 2, wherein: the pipe fitting (1) is provided with a pipe hole (10) matched with the pipe fitting, and the pipe thickness of the thin-opening joint (11) is the same as that of the flaring joint (12).

4. The ferrule type connection flared plastic pipe fitting according to claim 1, wherein: fixed block (2) are close to one side fixed connection of first nut (3) is kept away from in gag lever post (6) the one end of buffer block (61), joint sleeve (31) are close to first nut dashpot (30) have been seted up to one side of fixed block (2).

5. The ferrule type connection flared plastic pipe fitting according to claim 4, wherein: buffer block (61) with buffer spring (62) all set up in first nut dashpot (30) inner chamber, first nut dashpot (30) inner chamber with buffer block (61) looks adaptation, buffer block (61) slide and set up first nut dashpot (30) inner chamber, buffer spring (62) tip fixed connection be in first nut dashpot (30) inner chamber bottom.

6. The ferrule type connection flared plastic pipe fitting according to claim 1, wherein: the inner wall of the joint sleeve (31) is in tight fit with the outer wall threads of the thin-mouth joint (11), the inner wall of the flaring sleeve (32) is in tight fit with the outer wall threads of the flaring joint (12), and the joint sleeve (31) and the flaring sleeve (32) are of an integrally formed structure.

7. The ferrule type connection flared plastic pipe fitting according to claim 1, wherein: the outer wall of the upper end of the protective sleeve (5) is in threaded tight fit with the inner wall of the flaring sleeve (32), and the inner wall of the protective sleeve (5) is in threaded tight fit with the flaring joint (12).

8. The ferrule type connection flared plastic pipe fitting according to claim 1, wherein: the sound insulation cavity (51) is annular, and the sound insulation cavity (51) is located in an inner cavity at the upper end of the protective sleeve (5).

9. The ferrule type connecting flared plastic pipe fitting according to claim 8, wherein: the sound insulation cavity (51) is matched with the sound insulation cotton (52), and the sound insulation cotton (52) is tightly filled in the sound insulation cavity (51).