A kind of spiral bar liner transition piece of carat of pipeTechnical field
The utility model belongs to draining blowdown pipeline field, more particularly to the spiral bar liner transition of a kind of carat of pipePart.
Background technology
Currently, the heavy caliber pipe of domestic production --- HDPE enhances hollow spiral tube（Type B）, abbreviation carat pipe.ItsThe head and end of liner bellows is all that the extrusion cladding material freely with its periphery combines in peripheral spiral bar, causes product shouldLocate appearance warpage sometimes, stays sometimes, and also material is few sometimes for clad, material is more sometimes, so product has poor appearance, matter hereinThe defect that amount is poor, intensity is not high and unstable, so, existing product herein suddenly wait improving by insufficient place.
Utility model content
This patent product is at least one defect overcome described in the above-mentioned prior art, provides the spiral bar of a kind of carat of pipeLiner transition piece, it is simple in structure, novel which has many advantages, such as, dimensionally stable and production are quick, it is outer with carat pipeAfter enclosing in muscle the connection use of liner bellows, the peripheral spiral bar head and end of carat pipe is smooth, appearance is good.
The technical solution of the utility model is：The spiral bar liner transition piece of a kind of carat of pipe, wherein including centrum, instituteIt states the big one end of centrum bore and is equipped with socket, the socket is elastic socket, and the outer surface of the transition piece is equipped with staggeredly clearly demarcatedBlind slot, the transition piece are attached using the liner bellows of socket and the spiral bar head and end of carat pipe periphery.
The liner transition piece is made of cone and socket two parts；Its entire outer surface is equipped with staggeredly clearly demarcated blind slot, makesThe liner transition piece can be along the free bend of 360 degree of axis direction of rotation, and intensity is high；Its cone structure can be the outer of carat pipeThe liner bellows for enclosing spiral bar head and end distinguishes ascending and descending reasonable transition, utilizes socket and carat pipeThe connection of peripheral spiral bar liner bellows, make that first and last spiral bar both ends are smooth, appearance is good；The product structure is simple, novel, rulerVery little stabilization and production are quick.
Further, the bottom periphery of socket is equipped with holding groove.Holding groove keeps the liner bellows of socket and spiral bar fastSpeed is located by connecting.
Further, the outer wall of socket is equipped with convex ribs.Convex ribs make the connection of the liner bellows of socket and spiral bar increase frictionPower, convex ribs coordinate with holding groove limits the liner bellows of spiral bar, and transition piece is made to keep stable connection with spiral bar.
Further, socket is additionally provided with notch.Because notch makes socket have elastic characteristic, when socket and carat pipe periphery spiralWhen the liner bellows connection cooperation of muscle, the end of socket because notch gap can stress become smaller, and sprung back after coordinating in placeIt resets, installation connection is quick and easy, and reliability is high, is completely embedded.
Further, blind slot is waist type groove.It is equipped with waist type groove on centrum, keeps the liner transition piece real under some strengthFreely, flexibility is more preferable for now bending.
Further, a layered material layer is equipped in blind slot.The bed of material in a certain range can with the bending of transition piece and internal layer receiveContracting, outer elongate keep the draftability and flexibility of centrum.
Further, which is injection molding.Injection molding keeps the transition piece high-quality, and production is quick.
The utility model has the beneficial effects that：
1, the liner transition piece is made of cone and socket two parts, and it is blind that entire outer surface is equipped with staggeredly clearly demarcated waist typeSlot, and being formed by injection molding makes the liner transition piece can be along the free bend of 360 degree of axis direction of rotation, and intensity is high；It is boredBody structure can be that the liner bellows of the peripheral spiral bar head and end of carat pipe distinguishes ascending and descending conjunctionTransition is managed, is connect with the peripheral spiral bar liner bellows of carat pipe using socket, makes that first and last spiral bar both ends are smooth, appearanceIt is good；The product structure is simple, novel, and dimensionally stable and production are quick.
2, the socket of the liner transition piece is elastic socket, and a certain number of notches and convex ribs are not only distributed in it, andIts bottom periphery is additionally provided with holding groove.After convex ribs and holding groove the cooperation limit of socket, the liner wave of socket and spiral barLine pipe both ends can be located by connecting rapidly, convenient and reliable.
3, it is designed with relatively thin layered material layer below the waist type blind slot of the transition piece, which in a certain range can be with transitionThe bending of part and internal layer is shunk, outer elongate, make that product bending degree of freedom is high, structure novel.
Description of the drawings
Fig. 1 is the liner transition piece product structure figure of this patent.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the assembly partial sectional view of this patent and twisted steel liner bellows.
Fig. 4 is existing carat pipe product structure figure.
Fig. 5 is integral product structure chart of this patent products application on carat pipe outer periphery threads muscle.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodimentScheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawingIllustrate, should not be understood as the limitation to this patent.
Embodiment 1：
As shown in Figure 1 to Figure 3, the spiral bar liner transition piece of a kind of carat of pipe, wherein including centrum 1, the centrum 1The big one end of bore is equipped with socket 2, and the socket 2 is elastic socket, and the outer surface of the transition piece is equipped with staggeredly clearly demarcated blind slot3, which is attached using socket 2 and the liner bellows of the spiral bar head and end of carat pipe periphery.
The liner transition piece is made of cone 1 and 2 two parts of socket, and entire outer surface is equipped with staggeredly clearly demarcated blind slot 3,And formed by injection molding, make the liner transition piece can be along the free bend of 360 degree of axis direction of rotation, intensity is high；Its cone 1Structure, can be the peripheral spiral bar head and end of carat pipe liner bellows distinguish it is ascending and descending reasonableTransition is connect using socket 2 with the peripheral spiral bar liner bellows of carat pipe, makes that first and last spiral bar both ends are smooth, appearance is good；The product structure is simple, novel, and dimensionally stable and production are quick.
Wherein, a certain number of notches 6 and convex ribs 5 are not only distributed in socket 2, and its bottom periphery is additionally provided with holding groove4.After convex ribs 5 and holding groove 4 the cooperation limit of socket 2, socket 2 and the liner bellows both ends of spiral bar can position rapidlyConnection, it is convenient and reliable.
Wherein, the blind slot 3 of the transition piece is waist type, which is designed with relatively thin layered material layer below, which existsIn a certain range can with the bending of transition piece and internal layer is shunk, outer elongate, make that product bending degree of freedom is high, structure novel.
Comparison diagram 4 and Fig. 5, compared with prior art, the utility model have simple in structure, novel, dimensionally stable and lifeProduce the advantages that quick, it with after liner bellows connect use in the peripheral muscle of carat pipe, the peripheral spiral bar first and last of carat pipeBoth ends are smooth, appearance is good.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, andIt is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above descriptionOn the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodimentsIt is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included inWithin the protection domain of the utility model claims.