CN212900336U

CN212900336U - HDPE pipe with connection structure

Info

Publication number: CN212900336U
Application number: CN201922087859.1U
Authority: CN
Inventors: 邹效良; 石泉福
Original assignee: Suzhou Taihe Pipe Manufacturing Co ltd
Current assignee: Suzhou Taihe Pipe Manufacturing Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2021-04-06
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to a HDPE pipe with connection structure, including spiral shell head, nut and horn mouth connecting pipe, install two horn mouth connecting pipes between spiral shell head and the nut symmetrically, screw-thread fit between spiral shell head and the nut, the spiral shell head has the head, be equipped with the notch in the terminal surface middle part of head, be provided with the packing ring between spiral shell head and the nut, the packing ring cover is on the head of spiral shell head, the packing ring is soft deformable rubber material; the utility model discloses a screw-thread fit between spiral shell head and the nut, manual pretension nut, reuse torque wrench screws up, makes the flaring contact of two upper and lower horn mouth connecting pipes at this in-process, like this, not only through forming sealed extrusion state between two flares, still realizes sealing once more through the screw-thread fit between spiral shell head and the nut, forms multi-level sealing connection like this, forms a better passageway of sealed effect.

Description

HDPE pipe with connection structure

Technical Field

The utility model relates to the technical field of pipelines, concretely relates to HDPE pipe with connection structure.

Background

HDPE is a highly crystalline, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, and the micro-thin section is semitransparent to a certain degree. PE has the excellent characteristic of resisting most of domestic and industrial chemicals, HDPE pipes are widely applied in the production process of pipelines, and two HDPE pipes in the prior art are generally directly spliced together when being connected, so that the connection effect is general, and the sealing property is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a HDPE pipe with connection structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a HDPE pipe with connection structure, includes spiral shell head, nut and horn mouth connecting pipe the spiral shell head with two horn mouth connecting pipes are installed to the symmetry between the nut, the spiral shell head with screw-thread fit between the nut, the spiral shell head has the head the terminal surface middle part of head is equipped with the notch, be provided with the packing ring between spiral shell head and the nut, the packing ring cover is on the head of spiral shell head, the packing ring is soft deformable rubber material.

Preferably, the material of spiral shell head, nut and horn mouth connecting pipe all sets up to the HDPE, spiral shell head, nut and horn mouth connecting pipe periphery coating have coating, and coating includes carbon black and plastics anti-aging agent.

Preferably, the bell-mouth connecting pipe has a trapezoidal flaring, and the flaring is matched with the notch on the head part of the screw head.

Preferably, the screw head further has a bottom portion having an outer diameter larger than that of the head portion.

Preferably, the nut has a recess, a first thread is provided on an outer side surface of the head, and a second thread is provided on an inner side surface of the recess.

Preferably, the first thread on the head and the second thread on the recess are complementary to each other.

Preferably, the flared connecting tube passes through the nut, and the flare is located in the recess of the nut and is restricted from moving up and down in the recess.

Preferably, the screw head is of a hollow structure.

Compared with the prior art, the utility model relates to a HDPE pipe with connection structure, overlap two horn mouth connecting pipes on spiral shell head and nut respectively, manual regulation spiral shell head, make the horn mouth connecting pipe in the spiral shell head align the horn mouth connecting pipe in the recess of nut, then keep compressing tightly between two horn mouth connecting pipes and guarantee the axiality, cooperate with the spiral shell head according to the flaring, notch in the nut simultaneously, thereby make the bending stress of flaring sharply cut down, the contact stress distribution of the flaring department of horn mouth connecting pipe has been improved, flaring structure surface pressure distribution load is littleer, the pipe wall deflection of corresponding flaring is little, avoid the pressure surface atress of the flaring of horn mouth connecting pipe uneven, avoid the too big plastic deformation or the breach that arouses of the turn-ups department atress of flaring simultaneously; then, through the screw-thread fit between spiral shell head and the nut, manual pretension nut, the reuse moment spanner is screwed up, makes the flaring contact of two upper and lower horn mouth connecting pipes at this in-process, like this, not only forms sealed extrusion state through between two flares, still realizes resealing through the screw-thread fit between spiral shell head and the nut, forms multi-level sealing connection like this, forms the better passageway of a sealed effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural view of an HDPE pipe with a connection structure according to the present invention;

fig. 2 is a schematic structural diagram of a screw head in an HDPE pipe with a connection structure according to the present invention.

In the drawings:

1. a screw head; 2. a nut; 3. a bell mouth connecting pipe; 4. a first thread; 5. a bottom; 6. a head portion; 7. a recess; 8. a second thread; 9. flaring; 10. a connecting portion; 11. a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a technical solution: the HDPE pipe with the connecting structure comprises a screw head 1, a screw cap 2 and a bell-mouth connecting pipe 3, wherein the two bell-mouth connecting pipes 3 are symmetrically arranged between the screw head 1 and the screw cap 2, the screw head 1 is of a hollow structure and is provided with a bottom part 5 and a head part 6, the outer diameter of the bottom part 5 is larger than that of the head part 6, the bell-mouth connecting pipe 3 can be accommodated in the screw head 1, preferably, the inner diameter of the head part 6 is 8.8mm, the inner diameter is 4mm, a first thread 4 is arranged on the outer side surface of the head part 6, and meanwhile, a notch is arranged in the middle of the end surface of the head part 6, and the notch is preferably 45 degrees; the nut 2 is provided with a concave part 7, the bottom of the inner side of the concave part 7 is provided with a notch, the surface of the inner side of the concave part 7 is provided with a second thread 8, and the first thread 4 on the head part 6 is matched with the second thread 8 on the concave part 7, so that the head part 6 of the screw head 1 can be screwed into the concave part 7 of the nut 2, the head part 6 of the screw head 1 is longer in length, the reserved space is large, the feeding amount of the corresponding screw head 1 into the concave part 7 is large, and the sealing effect is good; the bell nipple 3 has a trapezoidal flaring 9 and a connecting portion 10, wherein the bell nipple 3 passes through the nut 2, the trapezoidal flaring 9 is located in the concave portion 7 of the nut 2 and is limited to move up and down in the concave portion 7, and the flaring 9 is matched with the notch of the head of the screw head 1.

In this embodiment, a gasket 11 is disposed between the screw head 1 and the screw cap 2, the gasket 11 is sleeved on the head 6 of the screw head 1, and the gasket 11 is made of soft deformable rubber, so that the sealing performance inside the bell-mouth connecting pipe 3 can be ensured.

In this embodiment the screw head 1, nut 2 and horn mouth connecting pipe 3's material all sets up to the HDPE, the coating of 3 periphery coatings of screw head 1, nut 2 and horn mouth connecting pipe have paint, and paint includes carbon black and plastics anti-aging agent, greatly prolongs the life of screw head 1, nut 2 and horn mouth connecting pipe 3.

When the connecting tube structure for the air conditioner in the installation embodiment is used, the two bell-mouth connecting tubes 3 are respectively sleeved on the screw head 1 and the screw cap 2, the screw head 1 is manually adjusted, the bell-mouth connecting tubes 3 in the screw head 1 are aligned with the bell-mouth connecting tubes 3 in the concave part 7 of the screw cap 2, then the two bell-mouth connecting tubes 3 are kept to be compressed and the coaxiality is ensured, and meanwhile, the stress at the bending part of the flared end 9 is sharply reduced according to the matching of the flared end 9 and the notches in the screw head 1 and the screw cap 2, the contact stress distribution at the flared end 9 of the bell-mouth connecting tube 3 is improved, the pressure distribution load of the structure surface of the flared end 9 is smaller, the tube wall deformation amount of the corresponding flared end 9 is small, the stress of the compression surface of the flared end 9 of the bell-mouth connecting tube 3 is avoided, and the phenomenon; then, through the screw-thread fit between spiral shell head 1 and the nut 2, manual pretension nut 2, reuse moment spanner screws up, makes the flaring 9 contact of two upper and lower horn mouth connecting pipes 3 at this in-process, like this, not only through forming sealed extrusion state between two flaring 9, still realizes sealing once more through the screw-thread fit between spiral shell head 1 and the nut 2, forms multi-level sealing connection like this, forms the better passageway of a sealed effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a HDPE pipe with connection structure, includes spiral shell head (1), nut (2) and horn mouth connecting pipe (3), its characterized in that: screw head (1) with two horn mouth connecting pipe (3) are installed to the symmetry between nut (2), screw head (1) with screw-thread fit between nut (2), screw head (1) has head (6) the terminal surface middle part of head (6) is equipped with the notch, be provided with packing ring (11) between screw head (1) and nut (2), packing ring (11) cover is on head (6) of screw head (1), packing ring (11) are soft deformable rubber material.

2. HDPE pipe with a connecting structure according to claim 1, characterized in that: the material of spiral shell head (1), nut (2) and horn mouth connecting pipe (3) all sets up to the HDPE, spiral shell head (1), nut (2) and horn mouth connecting pipe (3) periphery coating have coating.

3. HDPE pipe with a connecting structure according to claim 1, characterized in that: the bell-mouth connecting pipe (3) is provided with a trapezoidal flaring (9), and the flaring (9) is matched with the notch on the head (6) of the screw head (1).

4. HDPE pipe with a connection structure according to claim 3, characterized in that: the screw head (1) also has a bottom (5), the outer diameter of the bottom (5) being greater than the outer diameter of the head (6).

5. HDPE pipe with a connecting structure according to claim 1, characterized in that: the nut (2) has a recess (7), a first thread (4) is provided on the outer side of the head (6), and a second thread (8) is provided on the inner side surface of the recess (7).

6. HDPE pipe with a connection structure according to claim 5, characterized in that: the first thread (4) on the head (6) and the second thread (8) on the recess (7) are mutually matched.

7. HDPE pipe with a connection structure according to claim 3, characterized in that: the bell-mouth connecting pipe (3) penetrates through the nut (2), and the flared end (9) is positioned in the concave part (7) of the nut (2) and limited to move up and down in the concave part (7).

8. HDPE pipe with a connecting structure according to claim 1, characterized in that: the screw head (1) is of a hollow structure.