CN214999890U

CN214999890U - Prefabricated cement pipeline of road

Info

Publication number: CN214999890U
Application number: CN202121359090.5U
Authority: CN
Inventors: 叶雨山; 冯大阔; 卢海陆; 闫亚召; 陈静; 曾凤娟; 程晟钊
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-03
Anticipated expiration: 2031-06-18

Abstract

The utility model relates to a road prefabricated cement pipeline, which effectively solves the problems that the pipeline is easy to shift and the sealing ring is difficult to install; the technical scheme includes that the pipe comprises a pipe body, a pipe head and a pipe tail which are integrally formed, wherein the pipe head and the pipe tail are arranged at two ends of the pipe body, the inner diameter of the pipe head is equal to the outer diameter of the pipe body, an annular groove is formed in the inner wall of the pipe head, and a pouring opening communicated with the annular groove is formed in the outer wall of the pipe head; the tube tail is of a three-section ladder structure extending outwards from the tube body, the outer diameter of a section of ladder at the outermost end is the smallest, a plurality of radial blind holes are uniformly distributed on the outer wall of the second section of ladder in the circumferential direction, a sealing ring is sleeved on the outer wall of the smallest section of ladder, and the outer diameter of the sealing ring is larger than that of the second section of ladder; the utility model provides a cement pipe joint structure can guarantee that cement pipe uses for a long time and does not take place axial and circumference aversion, and construction simple process, and the practicality is strong, moreover, leans on the pressure extrusion sealing washer of concrete to realize sealing, makes the sealing washer can violently easily install.

Description

Prefabricated cement pipeline of road

Technical Field

The utility model relates to a road foundation construction field specifically is a prefabricated cement pipeline of road.

Background

The prefabricated cement pipe is a common drainage pipeline for roads and is formed by splicing a plurality of sections of cement pipes; after the drainage pipeline is laid, the cement pipe can be gradually shifted due to vibration caused by road traffic, nearby construction, earthquake and the like, so that the drainage pipeline has the problems of water leakage, fracture and the like.

Disclosure of Invention

For solving the easy aversion of pipeline, the problem of sealing washer installation difficulty, the utility model provides a prefabricated cement pipeline of road.

The technical scheme of the utility model is that, a road precast cement pipeline, including integrated into one piece's pipe shaft, tube head and tube tail are located the pipe shaft both ends, the internal diameter of tube head position equals the external diameter of pipe shaft department, open an annular groove on the inner wall of tube head, be equipped with the pouring mouth with the annular groove intercommunication on the tube head outer wall; the pipe tail is by the outside three-section stair structure that extends of pipe shaft, and one section ladder external diameter of outermost end is minimum, and the circumference equipartition has a plurality of radial blind holes on the outer wall of second section ladder, and the cover is equipped with the sealing washer on the outer wall of one section ladder of minimum, and the external diameter of sealing washer is greater than the external diameter of second section ladder.

The outer end of the tube head is in a bell mouth shape.

The outer diameter of the sealing ring is smaller than that of the pipe body, and the inner diameter of the sealing ring is larger than that of the minimum step section of the pipe tail.

The pouring opening comprises an internal thread pipe and an external thread pipe, the internal thread pipe is embedded in the inner wall of the pipe head, the external thread pipe is screwed at the outer end of the internal thread pipe, and the external thread pipe is provided with a switch valve.

The utility model provides a cement pipe joint structure can guarantee that cement pipe uses for a long time and does not take place axial and circumference aversion, and construction simple process, and the practicality is strong, moreover, leans on the pressure extrusion sealing washer of concrete to realize sealing, makes the sealing washer can violently easily install.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a front sectional view of two cement pipes after being spliced.

Fig. 3 is an enlarged view of the position a in fig. 2.

Detailed Description

The following detailed description of the embodiments is made with reference to the accompanying drawings 1-3:

the utility model comprises an integrally formed pipe body 1, a pipe head 2 and a pipe tail 3, wherein the pipe head 2 and the pipe tail 3 are positioned at two ends of the pipe body 1, the inner diameter of the position of the pipe head 2 is equal to the outer diameter of the pipe body 1, the inner wall of the pipe head 2 is provided with a ring groove 4, and the outer wall of the pipe head 2 is provided with a pouring opening communicated with the ring groove 4; the pipe tail 3 is by the three-section stair structure of the outside extension of pipe shaft 1, and one section ladder external diameter of outermost end is minimum, and the circumference equipartition has a plurality of radial blind holes 5 on the outer wall of second section ladder, and the cover is equipped with sealing washer 6 on the outer wall of one section ladder of minimum, and the external diameter of sealing washer 6 is greater than the external diameter of second section ladder.

The outer end of the pipe head 2 is in a bell mouth shape, so that the pipe tail 3 of the cement pipe connected with the pipe head can be conveniently inserted into the pipe head 2.

The external diameter of sealing washer 6 be less than the external diameter of pipe shaft 1, the internal diameter of sealing washer 6 is greater than the external diameter of 3 minimum ladder sections of pipe tail to can be light overlap sealing washer 6 on pipe tail 3.

The pouring opening comprises an internal thread pipe 7 and an external thread pipe 8, the internal thread pipe 7 is embedded in the inner wall of the tube head 2, the external thread pipe 8 is screwed at the outer end of the internal thread pipe 7, and a switch valve 9 is arranged on the external thread pipe 8.

The utility model discloses when laying, at first with sealing washer 6 suit on waiting to lay the pipe tail 3 of cement pipe, then insert the pipe tail 3 of this cement pipe that is equipped with sealing washer 6 in the pipe head 2 of the last water conservation mud pipe that has laid and push up tightly the location, at this moment, the joint position of two cement pipes, ring channel 4 aligns with the second step and forms an annular cavity, one side and the sealing washer 6 lateral wall of annular cavity communicate with each other, then twist outer screw thread pipe 8 on interior screw thread pipe 7, pressurize pouring concrete to the annular cavity from the outer end of outer screw thread pipe 8, the concrete fills up annular cavity and a plurality of blind holes 5, form a pouring area of embedding between two pipelines, can axial extrusion sealing washer 6 after concrete pouring is full, make sealing washer 6 radial expansion compress tightly sealed with the pipe wall of cement pipe; and (3) opening and closing the valve 9 on the pipe wall after the pouring is finished, maintaining the pressure for a period of time, removing the external threaded pipe 8 after the concrete basically loses fluidity but does not form solidification strength, quickly screwing a plug at the outer end of the internal threaded pipe 7 for plugging, and timely cleaning out the residual concrete in the external threaded pipe 8, wherein the external threaded pipe 8 can be recycled, and the pressure maintaining time is specifically determined according to different types of concrete and is generally between 30 minutes and one hour.

After the poured concrete is completely solidified, a pouring belt which is embedded between the two cement pipes and is annular and provided with positioning nails on the inner wall is formed, and the axial and circumferential displacement of the two cement pipes is limited.

The cement pipe joint structure provided by the utility model can form a stable high-strength positioning pouring belt between two water-saving mud pipes, ensures that the cement pipes can be used for a long time without axial and circumferential displacement, and has simple construction process and strong practicability; and, rely on the pressure extrusion sealing washer 6 of concrete to realize sealed, alright design the original size of sealing washer 6 and be clearance fit between two pipe walls, make sealing washer 6 can violently easily install.

Claims

1. The prefabricated cement pipeline for the road comprises a pipe body (1), a pipe head (2) and a pipe tail (3) which are integrally formed, and is characterized in that the pipe head (2) and the pipe tail (3) are positioned at two ends of the pipe body (1), the inner diameter of the position of the pipe head (2) is equal to the outer diameter of the position of the pipe body (1), an annular groove (4) is formed in the inner wall of the pipe head (2), and a pouring opening communicated with the annular groove (4) is formed in the outer wall of the pipe head (2); the pipe tail (3) is the three-section stair structure that outwards extends by pipe shaft (1), and one section ladder external diameter of outermost end is minimum, and the circumference equipartition has a plurality of radial blind holes (5) on the outer wall of second section ladder, and the cover is equipped with sealing washer (6) on the outer wall of one section ladder of minimum, and the external diameter of sealing washer (6) is greater than the external diameter of second section ladder.

2. The precast cement pipeline for roads as claimed in claim 1, wherein the outer end of the pipe head (2) is flared so that the pipe end (3) of the cement pipe connected thereto can be inserted into the pipe head (2).

3. The precast cement pipeline for roads as claimed in claim 1, wherein the outer diameter of the sealing ring (6) is smaller than the outer diameter of the pipe body (1), and the inner diameter of the sealing ring (6) is larger than the outer diameter of the smallest step of the pipe tail (3), so that the sealing ring (6) can be easily sleeved on the pipe tail (3).

4. The precast cement pipeline for roads as claimed in claim 1, wherein the pouring opening comprises an internal threaded pipe (7) and an external threaded pipe (8), the internal threaded pipe (7) is pre-embedded in the inner wall of the pipe head (2), the external threaded pipe (8) is screwed at the outer end of the internal threaded pipe (7), and the external threaded pipe (8) is provided with a switch valve (9).