CN216896339U

CN216896339U - Pipe fitting connecting joint

Info

Publication number: CN216896339U
Application number: CN202123455296.0U
Authority: CN
Inventors: 魏浩宁; 林细勇; 刁振彬; 周龙飞
Original assignee: Foshan Rifeng Enterprise Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Current assignee: Foshan Rifeng Enterprise Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-05
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the field of pipe fitting connection, and discloses a pipe fitting connection joint, which comprises: the non-circular insert is embedded in the body, the insert and the body are plastic parts, convex rings are axially arranged on the peripheral side face of the insert at intervals, a matched groove is formed in the body, a first clamping block is further arranged at the bottom of the insert, and a first matched clamping groove is formed in the body. The beneficial effects of the utility model are as follows: the central axis that non-circular inserts can prevent to follow the inserts after the inserts installation is rotatory, the cooperation of first fixture block and first draw-in groove also can further prevent that the inserts from rotating in the body, the pipe fitting attach fitting that overall structure is plastics can also carry the corrosive medium fluid of belt, widen attach fitting's application range, and can one-time molding, and save manufacturing cost, production cycle has been shortened, can realize the connection between the pipeline of different materials again when inserts and body adopt different materials, reach convenient and fast ground connecting tube's purpose.

Description

Pipe fitting connecting joint

Technical Field

The utility model relates to the field of pipe fitting connection, in particular to a pipe fitting connecting joint.

Background

The insert is a part embedded in a plastic part, is usually not detachable, can improve the local strength, hardness and wear resistance of the plastic part, increases the stability of the shape and size of the plastic part, improves the precision, reduces the consumption of plastic, meets the decoration requirement and the like, and is a very common part in pipe fitting connection. At present, the inserts are usually circular to the inside of locating the working of plastics is inlayed, however after inserts and connection pipe fitting fixed connection, the inserts is very easy rotatory in the working of plastics, leads to the inserts to deviate from or the working of plastics wearing and tearing scheduling problem, consequently, need a neotype pipe fitting attach fitting urgently to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide a pipe fitting connection joint, the insert of which is firmly connected with the body and can convey fluids with corrosive media.

The purpose of the application is realized by the following technical scheme:

a pipe fitting connection fitting comprising:

the connector comprises a body, wherein the body is a plastic piece and is provided with at least two connectors, one connector is a first connector, a plurality of grooves extending along the circumferential direction of the first connector are formed in the inner circumferential wall surface of the first connector, the first connector is non-circular, the grooves are axially arranged at intervals, a first step is arranged in the first connector, the diameter of the upper part of the first step is larger than that of the lower part of the first step, and the first step is provided with a first clamping groove extending downwards;

the insert is a plastic piece, a plurality of convex rings extending along the circumferential direction of the insert are arranged on the outer circumferential surface of the insert and are arranged at intervals along the axial direction, the convex rings are embedded with the grooves in a one-to-one correspondence mode, the insert is installed in the first interface of the body, a fluid channel which runs through the two ends of the insert and is communicated with the first interface is formed in the insert, and a first clamping block correspondingly clamped with the first clamping groove is arranged at the bottom of the insert.

In some embodiments of the present application, the insert is a regular prism structure.

In some embodiments of the present application, the number of the first clamping grooves and the number of the first clamping blocks are at least two, the first clamping grooves are circumferentially spaced on the first step, and the first clamping blocks are correspondingly circumferentially spaced on the bottom of the insert.

In some embodiments of the present application, the bottom of the insert is provided with an annular protrusion, the protrusion surrounds the fluid channel, and a corresponding position of the body is provided with a recess adapted to the protrusion.

In some embodiments of the present application, the insert is further provided with a second fixture block, the second fixture block is disposed on the peripheral side surface of the insert, and a second clamping groove matched with the second fixture block is formed in the inner peripheral wall surface of the first interface.

In some embodiments of the present application, the fluid passage is provided at an inner portion thereof with a second step located between a top and a bottom of the fluid passage, and a screw hole extending downward from the top of the fluid passage to the second step, the screw hole having a diameter larger than a lower diameter of the second step.

In some embodiments of the present application, a top of the fluid channel is chamfered.

In some embodiments of the present application, the material of the insert is polyamide.

In some embodiments of the present application, the body and the insert are injection molded parts and are injection molded at one time.

The utility model provides a pipe fitting attach fitting, through non-circular shape inserts, it is rotatory to prevent the central axis of insert installation back edge inserts, axial groove on the lateral wall of inserts makes unable pulling after the inserts is connected and drops easily, and the first fixture block that the bottom of inserts set up can further prevent the inserts rotation again, the inserts are plastic materials, can with the once only injection moulding of the body of plastics, remove processes such as machining from, and the like, the production cost is saved, the production cycle is shortened, and has obvious cost advantage, make pipe fitting attach fitting wholly can conveyer belt corrosivity medium fluid simultaneously, widen attach fitting's application range, can realize being connected between the pipeline of different materials again when inserts and body adopt different materials, reach convenient and fast ground connecting tube's purpose.

Drawings

FIG. 1 is a first longitudinal sectional view of the present solution of the pipe joint;

figure 2 is a second longitudinal sectional view of the tubular coupling joint of the present solution;

FIG. 3 is a perspective view of an insert of the present solution;

FIG. 4 is a bottom view of the insert of the present version;

FIG. 5 is a half-sectional view of an insert of the present solution;

fig. 6 is a schematic view of the connecting pipe of the pipe joint according to the present embodiment.

In the figure, 1, a body; 11. a first interface; 12. a groove; 13. a first step; 14. a first card slot; 15. recessing; 16. a second card slot; 2. an insert; 21. a convex ring; 22. a fluid channel; 23. a first clamping block; 24. a protrusion; 25. a second fixture block; 26. a second step; 27. a screw hole; 28. and (6) chamfering.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", "circumferential", and the like used herein to indicate orientation or positional relationship based on that shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 6, an embodiment of the present application provides a pipe fitting connection joint, including:

the connector comprises a body 1, wherein the body 1 is a plastic part, the body 1 is provided with at least two connectors, one connector is a first connector 11, a plurality of grooves 12 extending along the circumferential direction of the first connector 11 are formed in the inner circumferential wall surface of the first connector 11, the first connector 11 is non-circular, the plurality of grooves 12 are axially arranged at intervals, first steps 13 are arranged in the first connector 11, the upper diameter of each first step 13 is larger than the lower diameter of each first step, and each first step 13 is provided with a first clamping groove 14 extending downwards;

the insert 2 is a plastic part, a plurality of convex rings 21 extending along the circumferential direction of the insert 2 are arranged on the outer circumferential surface of the insert 2, the convex rings 21 are axially arranged at intervals, the convex rings 21 are embedded with the grooves 12 in a one-to-one correspondence manner, so that the insert 2 is installed in the first interface 11 of the body 1, a fluid channel 22 penetrating through the two ends of the insert 2 and communicated with the first interface 11 is formed in the insert 2, and a first clamping block 23 correspondingly clamped with the first clamping groove 14 is arranged at the bottom of the insert 2.

Based on the above technical scheme, through non-circular inserts 2, it is rotatory along inserts 2's the central axis to prevent behind inserts 2 installation, axial groove 12 on inserts 2's the lateral wall makes inserts 2 connect the back and can't stimulate easily and drop, and inserts 2's the first fixture block 23 of bottom setting can further prevent inserts 2 and rotate, inserts 2 is plastic material, can with the disposable injection moulding of the body 1 of plastics, remove processes such as machining from, save manufacturing cost, production cycle is shortened, obvious cost advantage has, make the pipe fitting attach fitting that inserts 2 and body 1 constitute simultaneously can conveyer belt corrosive medium fluid, widen pipe fitting attach fitting's application range, insert 2 and body 1 adopt when different materials can realize the connection between the pipeline of different materials again, reach convenient and fast purpose of connecting the pipeline. After the body 1 is matched with the insert 2, the pipe fitting connecting joint can be formed into a common straight-through joint, an elbow joint, a tee joint and the like and is used for different connecting conditions. Preferably, a sealing ring structure can be arranged in the groove 12 to prevent the problem of fluid leakage.

In some embodiments of the present application, the insert 2 is a regular prismatic structure, as shown in fig. 3 and 4. The regular prism-shaped structure gives consideration to the effects of preventing rotation, facilitating the arrangement of the first latch 23, and being beautiful, and is the most suitable non-circular structure.

In some embodiments of the present application, as shown in fig. 3 and 4, the number of the first locking grooves 14 and the number of the first locking blocks 23 are at least two, the first locking grooves 14 are circumferentially spaced on the first step 13, and the first locking blocks 23 are correspondingly circumferentially spaced at the bottom of the insert 2. When at least two clamping structures are adopted, the clamping force can be ensured to be large enough, and the failure of a single clamping structure is prevented. Preferably, the first catching groove 14 and the first catching block 23 are provided at opposite sides of the fluid passage 22, so that the catching force can be balanced. More preferably, first draw-in groove 14 and first fixture block 23 are four to form an approximate cross, and criss-cross first fixture block 23 can make the power distribution of joint more even, and the joint effect is reliable, is difficult to take place the cracked problem of fixture block, has compromise inserts 2's aesthetic property simultaneously.

In some embodiments of the present application, as shown in fig. 2 to 4, the bottom of the insert 2 is provided with an annular protrusion 24, the protrusion 24 is disposed around the fluid channel 22, and the corresponding position of the body 1 is provided with a recess 15 matching with the protrusion 24. Annular protruding 24 forms a round platform structure, and when the shaping, at first will have this protruding 24 inserts 2 injection moulding in the mould, then pours body 1 again, and this annular protruding 24 just can play the effect of blockking at this moment, prevents that the pouring liquid of body 1 from getting into other positions of mould, can also make things convenient for the mould to advance simultaneously and glue. Preferably, the protrusion 24 is engaged with the inner side of the first latch 23, so that the integral molding is easier to be realized, the injection molding is prevented from being difficult due to the small gap, and the shape is more beautiful.

In some embodiments of the present application, as shown in fig. 1, 3, 4, and 5, the insert 2 is further provided with a second fixture block 25, the second fixture block 25 is provided on a peripheral side surface of the insert 2, and a second clamping groove 16 adapted to the second fixture block 25 is provided on an inner peripheral wall surface of the first interface 11. Convex second fixture block 25 can the joint on the body 1 of inserts 2 periphery, plays the effect that prevents inserts 2 pivoted together with non-circular inserts 2 and first fixture block 23 to can increase the cohesion of inserts 2 and connecting pipe, make the joint more firm. Preferably, the number of the second fixture blocks 25 is four, and the four second fixture blocks 25 are circumferentially arranged on the peripheral wall surface of the insert 2 at intervals, so that the clamping force can be increased, and clamping failure can be prevented. More preferably, the four second clamping blocks 25 are oppositely arranged on the insert 2 in pairs, so that the clamping force at each position is not too different, and the situation that the clamping force at a certain position is too large or too small is avoided.

In some embodiments of the present application, as shown in fig. 1, 2 and 5, the inside of the fluid channel 22 is provided with a second step 26 and a screw hole 27, the second step 26 is located between the top and the bottom of the fluid channel 22, the screw hole 27 extends downward from the top of the fluid channel 22 to the second step 26, and the diameter of the screw hole 27 is larger than the lower diameter of the second step 26. The central screw hole 27 that is at the top of inserts 2 can be connected with other supporting threaded pipe fittings through this screw hole 27, increases the stability of connecting to at the in-process of precession, second step 26 in the fluid passage 22 can play the effect of butt in threaded pipe fittings, prevents that threaded pipe fittings from excessively turning round, protects inserts 2 and body 1.

In some embodiments of the present application, as shown in fig. 1, 2, and 5, the top of the fluid channel 22 is provided with a chamfer 28. The chamfer 28 at the top of the fluid passage 22 provides a guide for easy introduction of the threaded fitting and provides ease of installation.

In some embodiments of the present application, the material of the insert 2 is polyamide. The polyamide material has excellent tensile strength and oil resistance, good abrasion resistance and impact resistance and certain self-lubricating property, and is very suitable as the material of the plastic insert 2, especially the material which is preferable when a special fluid is transported.

In some embodiments of the present application, the body 1 and the insert 2 are injection molded parts and are injection molded at one time. Disposable injection moulding is common mode of moulding plastics, and inserts 2 and body 1 are disposable injection moulding, pours one of them part earlier, then continues to pour into a mould another part for the pipe fitting attach fitting is whole only need the injection moulding process just can be formed, can realize rapid production and automated production, need not follow-up processing, and save time and cost improve production efficiency. Because the connection effect of hot melt combination is not good between the different plastic materials, consequently inserts 2 and body 1 can adopt different plastic materials, with the connection demand that satisfies different material pipe fittings, the flexibility of pipe connections has been improved, wherein inserts 2 material can be various different thermoplastic engineering plastics, not only be limited to polyamide material, body 1 also can be selected in a flexible way simultaneously, for example common straight, the elbow, the tee bend etc. and the material is general thermoplastic materials such as PE, PVC, PPR, PB, all can adopt the pipe fitting attach fitting of this application.

In conclusion, the pipe fitting joint of the present application, through the non-circular insert 2, it is prevented that the insert 2 is installed and then rotated along the central axis of the insert 2, the axial groove 12 on the outer side wall of the insert 2 makes the insert 2 unable to be easily pulled and dropped after being connected, and the first fixture block 23 arranged at the bottom of the insert 2 can further prevent the insert 2 from rotating, the insert 2 is made of plastic material, and can be injection molded with the plastic body 1 at one time, the processes such as machining and the like are removed, so that the production cost is saved, the production cycle is shortened, and the cost advantage is obvious, meanwhile, the pipe fitting joint can convey corrosive medium fluid integrally, the application range of the joint is widened, when the insert 2 and the body 1 are made of different materials, the connection between pipes made of different materials can be realized, and the purpose of conveniently and quickly connecting the pipes is achieved.

The foregoing are only preferred embodiments of the present application, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be considered as the protection scope of the present application.

Claims

1. A pipe fitting connection fitting, comprising:

2. The tubular connecting joint according to claim 1, wherein the insert is of a regular prismatic configuration.

3. The tubular connecting joint according to claim 1, wherein there are at least two first engaging grooves and at least two first engaging blocks, the first engaging grooves are circumferentially spaced apart on the first step, and the first engaging blocks are correspondingly circumferentially spaced apart at the bottom of the insert.

4. The tubular connecting joint according to claim 1, wherein the bottom of the insert is provided with an annular protrusion, the protrusion is disposed around the fluid passage, and a corresponding position of the body is provided with a recess adapted to the protrusion.

5. The pipe fitting connecting joint according to claim 1, wherein the insert is further provided with a second clamping block, the second clamping block is arranged on the outer peripheral side surface of the insert, and a second clamping groove matched with the second clamping block is arranged on the inner peripheral wall surface of the first connector.

6. The tubular connecting joint according to claim 1, wherein the fluid passage is provided at an inner portion thereof with a second step between a top and a bottom of the fluid passage, and a threaded hole extending downward from the top of the fluid passage to the second step, the threaded hole having a diameter larger than a lower diameter of the second step.

7. The tubular connecting joint according to claim 1, wherein a top of the fluid passage is chamfered.

8. The tubular connecting joint according to claim 1, characterized in that the material of the insert is polyamide.

9. The tubular connecting joint according to claim 1, characterized in that said body and said insert are injection molded and are injection molded in one piece.