CN209977546U

CN209977546U - Joint device for sewage discharge plastic pipe

Info

Publication number: CN209977546U
Application number: CN201920739201.1U
Authority: CN
Inventors: 赵海忠
Original assignee: Shanghai Flying Plastic Pipe Technology Co Ltd
Current assignee: Shanghai Flying Plastic Pipe Technology Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-01-21
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to a water pipe head technical field specifically is a coupling device for blowdown plastic pipe, including center tube, left end pipe and right-hand member pipe, center tube movable fit left end pipe and right-hand member pipe respectively, left end pipe and right-hand member pipe and blowdown plastic pipe flange joint, the welding of center tube inner wall has the inner tube, and the left and right lateral wall of inner tube all is equipped with the compensation circle, and the compensation circle is equipped with rather than integrated into one piece's fixture block, and the inner tube is connected to the fixture block inlay card, is located left compensation circle and left end pipe end looks butt, is located the compensation circle and the right-hand member pipe end looks butt on right side. The beneficial effects are that: the utility model discloses simple structure, the installation is dismantled conveniently, and the compensation circle can swiftly install with the inner tube, and when left end pipe and right-hand member pipe and center tube took place relative axial displacement, the compensation circle can the expanding deformation, and the clearance of compensation left end pipe and right-hand member pipe and inner tube avoids liquid to take place to leak, can be suitable for in the sewage pipes of big pipe diameter.

Description

Joint device for sewage discharge plastic pipe

Technical Field

The utility model relates to a water pipe head technical field specifically is a connector device for blowdown plastic pipe.

Background

The joint device of the existing sewage plastic pipe mainly adopts an inner sealing pipe joint which is made of metal and mainly comprises a joint body with external threads, a nut internally provided with a conical locking hole and an open conical pressing ring, wherein a plug inserted into a connected pipe is arranged on the joint body, a plurality of annular grooves are arranged on the outer surface of the plug, and O-shaped sealing rings are arranged in the grooves. When the plug is used, the connected pipe is sleeved on the plug with the O-shaped sealing ring, the opening conical pressing ring is arranged in the nut and sleeved on the outer surface of the connecting part of the connected pipe and the plug, and the opening conical pressing ring is locked by utilizing the meshing feeding of the nut and the external thread on the connector body, so that the connected pipe and the plug of the connector body are pressed tightly. The pipe joint device of the plastic pipe is only suitable for pipelines with smaller pipe diameters, the flow of the conveyed liquid is reduced and the pressure loss of the pipeline is large because the diameter of the inner cavity of the joint body is smaller than the inner diameter of the connected pipe, and when the pipeline sends axial excessive displacement, the joint part of the joint is easy to send leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blowdown is piecing devices for plastic pipe 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 joint device for blowdown plastic pipe, includes center tube, left end pipe and right-hand member pipe, the center tube is active fit left end pipe and right-hand member pipe respectively, left end pipe and right-hand member pipe and blowdown plastic pipe flange joint, the welding of center tube inner wall has the inner tube, the left and right lateral wall of inner tube all is equipped with the compensating ring, the compensating ring is equipped with rather than integrated into one piece's fixture block, the fixture block inlay joint inner tube, be located left compensating ring and left end pipe end looks butt, be located right side compensating ring and right-hand member pipe end looks butt, the welding of left end pipe has left pipe cassette, the welding of right-hand member pipe has right pipe cassette, between left pipe cassette and the center tube to and all be equipped with the sealing ring between right pipe cassette and the center tube, the welding of left end pipe has left pipe ring, A pull rod penetrates between the right pipe clamping seat and the right pipe ring plate, and two ends of the pull rod are provided with limiting parts.

Preferably, the inner diameters of the left end pipe, the right end pipe, the inner pipe and the compensation ring are equal, the left side wall and the right side wall of the inner pipe are respectively provided with a clamping groove, the right vertical section of the clamping block is in a T shape, and the clamping block is completely embedded into the clamping grooves.

Preferably, the right vertical section of the sealing ring is U-shaped, and the space between the sealing ring and the left end pipe and the space between the sealing ring and the right end pipe are not less than five millimeters.

Preferably, the pull rods are formed by sequentially connecting a plurality of screws with the same diameter in a threaded manner, at least three pull rods are arranged, and the pull rods are uniformly distributed in an annular manner by taking a center pipe of the central pipe as a center.

Preferably, the pull rod is in threaded connection with two fastening nuts, and the two fastening nuts are respectively abutted to the left side wall of the left pipe clamping seat and the right side wall of the right pipe clamping seat.

Preferably, the limiting part comprises two nuts with opposite thread directions, the two nuts are respectively in threaded connection with the pull rod, and the side walls of the two nuts are abutted.

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

1. the utility model has simple structure and convenient assembly and disassembly, the compensation ring can be quickly assembled with the inner pipe, when the left end pipe and the right end pipe and the central pipe generate relative axial movement, the compensation ring can expand and deform to compensate the clearance between the left end pipe and the inner pipe and the clearance between the right end pipe and the inner pipe, thereby avoiding the leakage of liquid and being suitable for the sewage discharge pipeline with large pipe diameter;

2. the locating part comprises two nuts, and two nuts are threaded connection pull rods respectively, and two nut lateral walls looks butt moreover, because the screw thread opposite direction of nut, the locating part that two nuts are constituteed has fine locking effect to effective restraint left end pipe and right-hand member pipe keep away from the maximum distance that the center tube removed.

Drawings

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

fig. 2 is the structural schematic diagram of the inner tube and the compensation ring of the present invention.

In the figure: the pipe joint comprises a central pipe 1, a left-end pipe 2, a right-end pipe 3, an inner pipe 4, a compensation ring 5, a left-pipe clamping seat 6, a right-pipe clamping seat 7, a sealing ring 8, a left-pipe ring plate 9, a right-pipe ring plate 10, a pull rod 11, a limiting part 12, a fastening nut 13, a clamping block 14 and a clamping groove 15.

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 to 2, the present invention provides a technical solution: the utility model provides a coupling device for blowdown plastic pipe, including center tube 1, left end pipe 2 and right-hand member pipe 3, center tube 1 is respectively swing joint left end pipe 2 and right-

hand member pipe

3, 1 inner wall welding of center tube has inner tube 4, the left side of inner tube 4, the right side wall all is equipped with compensation ring 5, through setting for left end pipe 2, right-hand member pipe 3, the internal diameter homoenergetic of inner tube 4 and compensation ring 5 equals, and because left end pipe 2 and right-hand member pipe 3 adopt flange joint with the blowdown plastic pipe, can guarantee that the blowdown pipeline internal diameter by the blowdown plastic pipe equipment is the same, avoid the blowdown pipeline to appear liquid pressure loss.

The compensating ring 5 is provided with a clamping block 14 integrally formed with the compensating ring, the right vertical section of the clamping block 14 is in a T shape, the left side wall and the right side wall of the inner tube 4 are respectively provided with a clamping groove 15, the clamping block 14 is soft in texture and easy to deform, and the clamping block 14 is completely embedded into the clamping groove 15, so that the compensating ring 5 can be quickly installed on the inner tube 4. The compensation ring 5 positioned on the left side is abutted with the pipe end of the left end pipe 2, and the compensation ring 5 positioned on the right side is abutted with the pipe end of the right end pipe 3. When the left end pipe 2 and the right end pipe 3 and the central pipe 1 move axially relatively, the compensation ring 5 can deform in an expansion mode, so that the gaps between the left end pipe 2 and the right end pipe 3 and the inner pipe 4 are compensated, and liquid leakage is avoided.

The welding of left end pipe 2 has left pipe cassette 6, the welding of right-hand member pipe 3 has right pipe cassette 7, between left pipe cassette 6 and the center tube 1, and all expand between right pipe cassette 7 and the center tube 1 and be equipped with sealing ring 8, sealing ring 8's positive vertical cross-section is "U word" shape, 8 inner walls of sealing ring and center tube 1 looks butt, 8 outer walls of sealing ring and left end pipe 2 and right-hand member pipe 3 looks butt, sealing ring 8 fills the clearance of center tube 1 and left end pipe 2 and right-hand member pipe 3, avoid liquid leakage, because the interval of sealing ring 8 and left end pipe 2 and right-hand member pipe 3 is five millimeters, sealing ring 8 and left end pipe 2 and the outer pipe wall contactless of right-hand member pipe 3 promptly, when left end pipe 2 and right-hand member pipe 3 take place relative axial displacement with center tube 1, sealing ring 8 takes place wearing and tearing with left end pipe 2 and right-hand member pipe 3.

Left end pipe 2 welds has left pipe ring board 9, and right-hand member pipe 3 welds has right pipe ring board 10, wears to be equipped with pull rod 11 between left pipe ring board 9, left pipe cassette 6, right pipe cassette 7 and the right pipe ring board 10, and pull rod 11 is formed by a plurality of screw rods with the footpath threaded connection in proper order, and pull rod 11 is equipped with four to four pull rods 11 use the pipe of center tube 1 to manage as the center and be annular evenly distributed. The pull rod 11 is in threaded connection with two fastening nuts 13, and the two fastening nuts 13 are respectively abutted to the left side wall of the left pipe clamping seat 6 and the right side wall of the right pipe clamping seat 7. The device prevents the left end tube 2 and the right end tube 3 from moving towards the central tube 1 by means of two fastening nuts 13. The two ends of the pull rod 11 are provided with limit pieces 12. The locating part 12 comprises two nuts, and two nuts are threaded connection pull rod 11 respectively, and two nut lateral walls looks butt moreover, because the screw thread opposite direction of nut, the locating part 12 that two nuts are constituteed has fine locking effect, and there is the interval in locating part 12 and left pipe ring board 9 right pipe ring board 10, and the maximum distance that the left end pipe 2 and right end pipe 3 kept away from center tube 1 and remove is retrained to locating part 12 promptly.

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 coupling device for blowdown plastic pipe, includes center tube (1), left end pipe (2) and right-hand member pipe (3), center tube (1) is respectively swing joint left end pipe (2) and right-hand member pipe (3), left end pipe (2) and right-hand member pipe (3) and blowdown plastic pipe flange joint, its characterized in that: the welding of center tube (1) inner wall has inner tube (4), the left and right lateral wall of inner tube (4) all is equipped with compensation ring (5), compensation ring (5) are equipped with fixture block (14) rather than integrated into one piece, fixture block (14) inlay card connects inner tube (4), is located left compensation ring (5) and left end pipe (2) pipe end looks butt, is located compensation ring (5) and right end pipe (3) pipe end looks butt on right side, left end pipe (2) welding has left pipe cassette (6), right end pipe (3) welding has right pipe cassette (7), between left side pipe cassette (6) and center tube (1) to and all be equipped with sealing ring (8) between right pipe cassette (7) and center tube (1), left pipe ring board (9) have been welded to left end pipe (2), right end pipe (3) welding has right pipe ring board (10), left pipe ring board (9) have been established, A pull rod (11) penetrates through the left pipe clamping seat (6), the right pipe clamping seat (7) and the right pipe ring plate (10), and limiting parts (12) are arranged at two ends of the pull rod (11).

2. The joint device for the sewage disposal plastic pipe as claimed in claim 1, wherein: the inner diameters of the left end pipe (2), the right end pipe (3), the inner pipe (4) and the compensation ring (5) are equal, the left side wall and the right side wall of the inner pipe (4) are respectively provided with a clamping groove (15), the right vertical section of the clamping block (14) is in a T shape, and the clamping block (14) is completely embedded into the clamping groove (15).

3. The joint device for the sewage disposal plastic pipe as claimed in claim 1, wherein: the right vertical section of the sealing ring (8) is U-shaped, and the space between the sealing ring (8) and the left end pipe (2) and the space between the sealing ring and the right end pipe (3) are not less than five millimeters.

4. The joint device for the sewage disposal plastic pipe as claimed in claim 1, wherein: the pull rods (11) are formed by sequentially connecting a plurality of screws with the same diameter in a threaded manner, at least three pull rods (11) are arranged, and the pull rods (11) are uniformly distributed in an annular manner by taking a pipe center of the central pipe (1) as a center.

5. The joint device for the sewage disposal plastic pipe as claimed in claim 1, wherein: the pull rod (11) is in threaded connection with two fastening nuts (13), and the two fastening nuts (13) are respectively abutted to the left side wall of the left pipe clamping seat (6) and the right side wall of the right pipe clamping seat (7).

6. The joint device for the sewage disposal plastic pipe as claimed in claim 1, wherein: the limiting piece (12) is composed of two nuts with opposite thread directions, the two nuts are respectively in threaded connection with the pull rod (11), and the side walls of the two nuts are abutted.