CN215721600U - Joint design of high reliability plastic tubing - Google Patents

Abstract

The utility model discloses a joint structure of a high-reliability plastic pipe, which belongs to the field of engineering pipes and comprises a mounting pipe and a connecting pipe, wherein the mounting pipe is communicated with the connecting pipe through a joint part, the mounting pipe is provided with an outer spigot at the joint, the joint part comprises a bushing and a flange pressing sleeve which are symmetrically arranged and are provided with inner spigots, the mounting pipe and the connecting pipe are respectively provided with a first clamping table and a second clamping table which are embedded with the flange pressing sleeve, the outer wall of the bushing is provided with a locking seat with a through hole, and the locking seat is fastened and locked through a bolt.

Description

Joint design of high reliability plastic tubing

Technical Field

The utility model discloses an engineering pipe, and particularly relates to a joint structure of a high-reliability plastic pipe.

Background

Plastic pipes are generally produced by extruding synthetic resins, i.e. polyesters, as raw materials in a pipe-making machine by the "plastic" method with the addition of stabilizers, lubricants, plasticizers, etc. The pipe is mainly used as a running water supply system pipe, a drainage, exhaust and pollution discharge sanitary pipe, an underground drainage pipe system, a rainwater pipe, a threading pipe for electric wire installation and assembly sleeve and the like of a house building.

The pipeline can be bent by the pipe bender during pipe distribution of the existing pipe fitting with the small pipe diameter, but the pipe bender can increase the operation intensity of workers when the pipe fitting with the large pipe diameter is used, so that the pipe fitting can be bent according to the preset size by adopting the heating, beating and other bending modes, and the like, but when the later pipeline line is changed or transformed, the line of the previous pipe fitting is difficult to change, and particularly the joint needs to be integrally removed and replaced.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above problems, and an object of the present invention is to provide a joint structure of a plastic pipe with high reliability.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a joint design of high reliability plastic tubing, is including the connecting pipe of installation pipe and outfit, through joining in marriage the part intercommunication between installation pipe and the connecting pipe, the installation pipe has seted up outer tang in joint department, join in marriage the part and set up and have the bush and the flange pressing cover of inner tang including the symmetry, installation pipe and connecting pipe are seted up respectively and are inlayed the ka tai one and the ka tai two of cover with the flange pressing cover, the outer wall of bush is equipped with the lock seat of band-pass hole, and the lock seat passes through bolt-up locking.

Through adopting above-mentioned technical scheme, through the interval between the locking seat control bush to change the fit clearance of bushing spare, change and press the deformation effect to pressing of flange cover, thereby change the friction fit between installation pipe and the connecting pipe, accomplish quick dismantlement and circuit change or the transformation between different pipe fittings.

Preferably, a boss is arranged at a position of the bushing far away from the outer spigot, and a concave platform for accommodating the boss is arranged at a position of the connecting pipe close to the second clamping platform.

Through adopting above-mentioned technical scheme, hold the space that the boss carried out the fit clearance change through the concave station.

Preferably, the connecting pipe sleeve is provided with a flexible corrugated pipe, an accommodating cavity for accommodating the flexible corrugated pipe is arranged between the concave platform and the lining, the flexible corrugated pipe is provided with a plurality of corrugated bulges, and the connecting pipe is provided with a plurality of corrugated grooves.

Through adopting above-mentioned technical scheme, form the damping effect through flexible bellows, play certain buffering effect when fluid pressure strengthens, prevent that pipe joint from directly bursting and leaking.

Preferably, the outer and inner rabbets and the abutment parts of the boss and the concave table are provided with sealing rubber rings.

Through adopting above-mentioned technical scheme, when there was the fluid to pass through at the pipeline inner wall, the flange cover is pressed outwards to the pressure, and outer tang and interior tang can carry out the compensation formula in coordination with the inflation of this department's sealing rubber ring and seal, prevent that expend with heat and contract with cold and arouse the pipeline leakage.

Preferably, the outer wall of the bushing is provided with a handle with an opening.

Through adopting above-mentioned technical scheme, the handle makes things convenient for tools such as spanner to insert and operates.

Preferably, the installation pipe and the connecting pipe are both steel-plastic composite pipes.

By adopting the technical scheme, the steel-plastic composite pipe takes the steel pipe as the base pipe, and the inner wall and the outer wall of the steel-plastic composite pipe are coated with food-grade high-density polyethylene, so that the bearing and corrosion resistance of the pipe fitting are improved.

Compared with the prior art, the utility model has the beneficial effects that:

the distance between the bushings is controlled through the locking seat, so that the fit clearance of the bushing part is changed, the pressing deformation effect of the pressing flange sleeve is changed, the friction fit between the installation pipe and the connecting pipe is changed, and the quick disassembly and the line change or the transformation between different pipe fittings are completed.

Drawings

FIG. 1 is a schematic structural view of a joint structure of a highly reliable plastic pipe;

FIG. 2 is a head of the joint structure of the high reliability plastic pipe;

FIG. 3 is a sectional view showing a joint structure of a high reliability plastic pipe;

fig. 4 is a partial enlarged view of fig. 3 at a.

Reference numerals: 1. installing a pipe; 2. a handle; 3. a connecting pipe; 4. a bushing; 5. a locking seat; 6. sealing the rubber ring; 7. pressing a flange sleeve; 8. a boss; 9. a flexible bellows.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. 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.

A joint structure of a high-reliability plastic pipe is shown in figures 1-4 and comprises a mounting pipe 1 and a connecting pipe 3, wherein the mounting pipe 1 is communicated with the connecting pipe 3 through a joint part, an outer spigot is arranged at the joint of the mounting pipe 1, the joint part comprises a bushing 4 and a flange pressing sleeve 7 which are symmetrically arranged and provided with inner spigots, and a first clamping table and a second clamping table which are embedded with the flange pressing sleeve 7 are respectively arranged on the mounting pipe 1 and the connecting pipe 3.

When the pipeline needs to be changed, the connecting pipe 3 may be a bent pipe or a straight pipe, and the bent pipe is taken as an example. When only connecting pipe 3 need turn to, because the outer wall of bush 4 is equipped with the locking seat 5 of taking the through-hole, and locking seat 5 passes through bolt-up locking, unscrew the bolt, and the outer wall of bush 4 is equipped with takes open-ended handle 2, with the help of instrument pulling handle 2 such as spanner, make and 3 friction fit's of connecting pipe bush 4 drive connecting pipe 3 and rotate and accomplish and turn to, turn to the back when connecting pipe 3 accomplishes and lock locking seat 5 through the bolt once more, make bush 4 connect the stability with mounting tube 1 and connecting pipe 3.

When the connecting pipe 3 needs to be replaced, if the bent pipe is replaced by a straight pipe, the straight pipe which is originally the bent pipe needs to be disassembled, firstly, the bolt is unscrewed to enable the bushings 4 which are symmetrically sleeved at two ends of the mounting pipe 1 and the connecting pipe 3 to be mutually far away, the position of the bushing 4 far away from the outer spigot is provided with a boss 8, the connecting pipe 3 is provided with a concave platform which is close to the clamping platform and is used for accommodating the boss 8, the connecting pipe 3 is sleeved with a flexible corrugated pipe 9, an accommodating cavity which is used for accommodating the flexible corrugated pipe 9 is arranged between the concave platform and the bushing 4, the flexible corrugated pipe 9 is provided with a plurality of corrugated bulges, the connecting pipe 3 is provided with a plurality of corrugated grooves, the bushing 4 is separated, the pressing force on the flange pressing sleeve 7 is reduced, the flange pressing sleeve 7 is elastically restored, the pressing force on the mounting pipe 1 is correspondingly reduced, and the fit clearance between the mounting pipe 1 and the connecting pipe 3 is enlarged;

the flexible corrugated pipe 9 also correspondingly reduces the contact area with the corrugated groove of the connecting pipe 3, so that the friction fit between the connecting pipe 3 and the mounting pipe 1 is reduced, and the connecting pipe 3 can be separated from the concave platform of the mounting pipe 1 and the boss 8 of the bushing 4, so that the connecting pipe 3 is disassembled;

with the straight tube type connecting pipe 3 of the same piecing together of change of bent pipe type connecting pipe 3, make the flange pressing cover 7 inlay the cover with ka tai one and ka tai two, once more through locking seat 5 with bush 4 locking, in the locking process, the outer tang of installation pipe 1 is hugged closely and closely cooperates with the interior tang of bush 4, the fit clearance between installation pipe 1 and the connecting pipe 3 diminishes, friction fit increases, corrugated groove and flexible bellows 9's the protruding area of contact of ripple increase simultaneously, frictional force increases.

When fluid passes through the inner wall of the pipeline, the flange pressing sleeve 7 is pressed outwards by pressure, the outer spigot and the inner spigot can cooperate with the expansion of the sealing rubber ring 6 at the position to perform compensation type sealing, pipeline leakage caused by expansion caused by heat and contraction caused by cold is prevented, the flexible corrugated pipe 9 forms a damping effect, a certain buffering effect is achieved when the fluid pressure is enhanced, and pipeline joints are prevented from directly bursting and leaking.

Secondly, the installation pipe 1 and the connecting pipe 3 both adopt steel-plastic composite pipes, the steel pipes are used as base pipes, food-grade high-density polyethylene is coated on the inner wall and the outer wall of the steel pipes, and the bearing and corrosion resistance of the pipe fitting are improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a joint design of high reliability plastic tubing, is including installation pipe (1) and connecting pipe (3) of outfit, its characterized in that: the installation pipe (1) and the connecting pipe (3) are communicated through a joint part, an outer spigot is arranged at the joint of the installation pipe (1), the joint part comprises a bushing (4) and a flange pressing sleeve (7) which are symmetrically arranged and provided with the inner spigot, a first clamping table and a second clamping table which are embedded with the flange pressing sleeve (7) are respectively arranged on the installation pipe (1) and the connecting pipe (3), a locking seat (5) with a through hole is arranged on the outer wall of the bushing (4), and the locking seat (5) is locked through bolt fastening.

2. A joint structure of a highly reliable plastic pipe according to claim 1, characterized in that: the position that outer tang was kept away from in bush (4) is equipped with boss (8), connecting pipe (3) are being close to the card platform two places and are being equipped with the concave station that holds boss (8).

3. A joint structure of a highly reliable plastic pipe according to claim 2, characterized in that: connecting pipe (3) cover has flexible bellows (9), be equipped with the chamber that holds that is used for holding flexible bellows (9) between concave station and bush (4), flexible bellows (9) are equipped with a plurality of ripples arch, connecting pipe (3) are equipped with a plurality of ripple grooves.

4. A joint structure of a highly reliable plastic pipe according to claim 2, characterized in that: and the outer spigot, the inner spigot, the boss (8) and the concave table are provided with sealing rubber rings (6).

5. A joint structure of a highly reliable plastic pipe according to claim 2, characterized in that: the outer wall of the lining (4) is provided with a handle (2) with an opening.

6. The joint structure of a highly reliable plastic pipe according to any one of claims 1 to 5, wherein: the installation pipe (1) and the connecting pipe (3) both adopt steel-plastic composite pipes.

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