Water conservancy cement pipeline joint sealing structure

Abstract

The utility model discloses a water conservancy cement pipeline joint sealing structure which is characterized in that a water conservancy cement pipeline comprises a pipeline joint formed through grouting, a first cement pipe and a second cement pipe, a first flow guide groove is formed in the pipeline joint, and annular grooves are formed in the pipe sections, close to the pipeline joint, of the first cement pipe and the second cement pipe; the first cement pipe and the second cement pipe are axially provided with second flow guide grooves, annular grooves distributed at equal intervals are formed in the inner wall of the pipeline connector, sealing rubber rings are arranged on the two sides of a limiting protrusion, an annular housing is arranged at a pipe opening of the pipeline connector, sealing rubber pads are arranged on the inner walls of the hollow annular grooves, and the outer wall of a circular ring is sleeved with a sealing ring. The annular groove, the circular ring groove, the second flow guide groove, the first flow guide groove and the grouting hole are communicated, cement is injected through the grouting hole, a cement pipeline joint is formed after the cement is solidified, and cement leakage in the grouting process can be prevented and the sealing stability can be improved through attachment of the sealing rubber ring, the sealing rubber pad and the sealing ring to all components.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy pipeline connection, in particular to a water conservancy cement pipeline joint sealing structure. Background Art

[0002] As living standards continue to improve, water conservancy projects are also constantly improving. In the construction of large-scale water conservancy projects, cement pipelines are often used for long-distance water transportation to prevent water resources from evaporating due to open-air water transportation and reducing the transportation volume. When cement pipelines are connected at the head and tail, a cement pipe inner wall connection sealing device is required.

[0003] Most of the existing connection sealing devices can only seal the joints of two cement pipes by filling cement, and the sealing means are single and the sealing stability is poor. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a water conservancy cement pipeline joint sealing structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A water conservancy cement pipe joint sealing structure comprises a water conservancy cement pipe, the water conservancy cement pipe comprises a grouting-formed pipe joint, a cement pipe 1 and a cement pipe 2, a guide groove 1 is provided in the pipe joint, the cement pipe 1 and the cement pipe 2 are respectively located on both sides of the pipe joint, the circumferential outer sides of the cement pipe 1 and the cement pipe 2 are fixedly connected with an annular ring, and the pipe sections of the cement pipe 1 and the cement pipe 2 close to the pipe joint are provided with an annular groove, and the guide groove 2 is axially provided on the cement pipe 1 and the cement pipe 2, annular grooves distributed at equal distances are provided on the inner wall of the pipe joint, and a limiting protrusion is provided in the middle of the inner wall of the pipe joint, and sealing rubber rings are provided on both sides of the limiting protrusion, an annular cover shell is provided at the pipe mouth of the pipe joint, and the annular cover shell and the pipe joint form a hollow annular groove, the inner wall of the hollow annular groove is provided with a sealing rubber pad, and a sealing ring is sleeved on the outer wall of the annular ring, and a grouting hole is radially provided on the cement pipe 2, one end of the grouting hole is connected to the annular groove, and the other end is connected to the outside of the pipe joint.

[0007] Preferably, the distance between two adjacent circular grooves is equal to the distance between two adjacent annular grooves.

[0008] Preferably, the outer diameters of the cement pipe 1 and the cement pipe 2 are equal to the inner diameter of the pipe joint, and the inner diameters of the cement pipe 1 and the cement pipe 2 are equal to the inner diameter of the ring formed by the limiting protrusion.

[0009] Preferably, the annular groove, circular ring groove, guide groove 2, guide groove 1 and grouting hole are connected, and cement is injected through the grouting hole to fill the space between the circular ring grooves with mud. After the cement solidifies, a cement pipe joint is formed.

[0010] Preferably, one side of the sealing rubber pad is in contact with the bottom of the hollow annular groove, and the other side is in contact with the side surface of the circular ring, which can effectively prevent cement leakage.

[0011] Preferably, the outer wall of the sealing ring fits with the inner wall of the annular cover shell, which can effectively prevent cement leakage.

[0012] The beneficial effects of the utility model are:

[0013] 1. The annular groove, circular ring groove, guide groove 2, guide groove 1 and grouting hole are connected, cement is injected through the grouting hole, so that the space between the circular ring groove and the annular groove is filled with mud, and after the cement solidifies, a cement pipe joint is formed;

[0014] 2. Through the fitting of the sealing rubber ring and the limiting protrusion, the fitting of the sealing rubber pad and the hollow annular groove, and the fitting of the sealing ring and the annular cover, cement leakage during the grouting process can be effectively prevented and the sealing stability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a hydraulic cement pipe joint sealing structure proposed by the utility model;

[0016] Figure 2 This is a cross-sectional view of a hydraulic cement pipe joint sealing structure proposed by the utility model;

[0017] Figure 3 This is an internal schematic diagram of a cement pipe and a pipe joint of a hydraulic cement pipe joint sealing structure proposed by the utility model.

[0018] In the figure: 1, hydraulic cement pipe; 2, pipe joint; 3, cement pipe 1; 4, cement pipe 2; 5, circular ring; 6, circular ring groove; 7, annular groove; 8, limiting protrusion; 9, sealing rubber ring; 10, annular cover; 11, hollow annular groove; 12, sealing rubber pad; 13, sealing ring; 14, grouting hole; 15, diversion groove 1; 16, diversion groove 2; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example 1, reference Figure 1-3 A sealing structure for a hydraulic cement pipe joint includes a hydraulic cement pipe 1, the hydraulic cement pipe 1 includes a grouting-formed pipe joint 2, a cement pipe 1 3 and a cement pipe 2 4, a guide groove 15 is opened in the pipe joint 2, the cement pipe 1 3 and the cement pipe 2 4 are respectively located on both sides of the pipe joint 2, a circular ring 5 is fixedly connected to the outer circumference of the cement pipe 1 3 and the cement pipe 2 4, and a circular groove 6 is opened in the pipe section of the cement pipe 1 3 and the cement pipe 2 4 near the pipe joint 2, The pipe 1 3 and the cement pipe 2 4 are axially provided with a guide groove 2 16, the inner wall of the pipe joint 2 is provided with annular grooves 7 distributed at equal distances, and a limiting protrusion 8 is provided in the middle of the inner wall of the pipe joint 2, and sealing rubber rings 9 are provided on both sides of the limiting protrusion 8. There is an annular cover 10 at the pipe mouth of the pipe joint 2, and the annular cover 10 and the pipe joint 2 form a hollow annular groove 11, and the inner wall of the hollow annular groove is provided with a sealing rubber pad 12, and a sealing ring 13 is sleeved on the outer wall of the ring 5, and the cement The pipe 24 is radially provided with a grouting hole 14, one end of the grouting hole 14 is connected to the annular groove 15, and the other end is connected to the outside of the pipe joint 2. The cement pipe 13 and the cement pipe 24 are both provided with a guide groove 2 16 in the axial direction, and the inner wall of the pipe joint 2 is provided with an annular groove 7, and the pipe joint 2 is provided with a guide groove 15, and the pipe section of the cement pipe 13 and the cement pipe 24 close to the pipe joint 2 is provided with an annular groove 6, and the outer wall of the pipe joint 2 is provided with a grouting hole 14, and one end of the grouting hole 14 is connected to The annular groove 7 has its other end connected to the outside of the pipe joint 2. The guide groove 2 16, the annular groove 6, the guide groove 1 15, the annular groove 7 and the grouting hole 14 are connected. The cement slurry is injected into the annular groove 7 through the grouting hole 14, and then flows into the connected grooves. The vibration of the vibration pump in the grouting hole 14 makes the mud evenly distributed. At the same time, the sealing effect of the sealing rubber ring 9, the sealing rubber pad 12 and the sealing ring 13 on the hydraulic cement pipeline 1 can prevent the cement slurry from leaking during pouring and vibration.

[0021] Embodiment 2:

[0022] This embodiment is optimized on the basis of embodiment 1, specifically: the distance between two adjacent annular grooves 6 is equal to the distance between two adjacent annular grooves 7, the outer diameters of cement pipe 1 3 and cement pipe 2 4 are equal to the inner diameter of the pipe joint 2, and the inner diameters of cement pipe 1 3 and cement pipe 2 4 are equal to the inner diameter of the ring formed by the limiting protrusion 8, the annular groove 7, the annular groove 6, the guide groove 2 16, the guide groove 1 15 and the grouting hole 14 are connected, one side of the sealing rubber pad 12 is in contact with the bottom of the hollow annular groove 11, and the other side is in contact with the side of the ring 5, and the outer wall of the sealing ring 13 is in contact with the inner wall of the annular cover 10.

[0023] Working principle: Cement pipe 1 3 and cement pipe 2 4 are both provided with guide groove 2 16 in the axial direction, an annular groove 7 is provided on the inner wall of the pipe joint 2, and a guide groove 15 is provided in the pipe joint 2. Cement pipe 1 3 and cement pipe 2 4 are provided with annular groove 6 in the pipe section close to the pipe joint 2, and a grouting hole 14 is provided on the outer wall of the pipe joint 2. One end of the grouting hole 14 is connected to the annular groove 7, and the other end is connected to the outside of the pipe joint 2. The guide groove 2 16, the annular groove 6, the guide groove 1 15, the annular groove 7 and the grouting hole 14 are connected. The cement slurry is injected into the annular groove 7 through the grouting hole 14, and then flows into the connected grooves. The vibration of the vibration pump at the grouting hole 14 makes the slurry evenly distributed. At the same time, the sealing effect of the sealing rubber ring 9, the sealing rubber pad 12 and the sealing ring 13 on the hydraulic cement pipe 1 can prevent the cement slurry from leaking during the pouring and vibration.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic cement pipe joint sealing structure, comprising a hydraulic cement pipe (1), characterized in that: The hydraulic cement pipeline (1) comprises a grouting-formed pipeline joint (2), a cement pipe 1 (3) and a cement pipe 2 (4); a guide groove 1 (15) is provided in the pipeline joint (2); the cement pipe 1 (3) and the cement pipe 2 (4) are respectively located on both sides of the pipeline joint (2); a circular ring (5) is fixedly connected to the outer circumference of the cement pipe 1 (3) and the cement pipe 2 (4); the cement pipe 1 (3) and the cement pipe 2 (4) are close to the pipeline circular groove (6); the cement pipe 1 (3) and the cement pipe 2 (4) are both provided with a guide groove 2 (16) along the axial direction; the pipeline joint The inner wall of the head (2) is provided with annular grooves (7) distributed at equal distances, and a limiting protrusion (8) is provided in the middle of the inner wall of the pipe joint (2), and sealing rubber rings (9) are provided on both sides of the limiting protrusion (8). An annular cover (10) is provided at the pipe mouth of the pipe joint (2), and the annular cover (10) and the pipe joint (2) form a hollow annular groove (11), and a sealing rubber pad (12) is provided on the inner wall of the hollow annular groove (11), and a sealing ring (13) is sleeved on the outer wall of the ring (5), and a grouting hole (14) is radially provided on the pipe joint (2).

2. A hydraulic cement pipe joint sealing structure according to claim 1, characterized in that: The distance between two adjacent circular grooves (6) is equal to the distance between two adjacent annular grooves (7).

3. A hydraulic cement pipe joint sealing structure according to claim 1, characterized in that: The outer diameters of the cement pipe one (3) and the cement pipe two (4) are equal to the inner diameter of the pipe joint (2), and the inner diameters of the cement pipe one (3) and the cement pipe two (4) are equal to the inner diameter of the circular ring (5) formed by the limiting protrusion (8).

4. A hydraulic cement pipe joint sealing structure according to claim 1, characterized in that: The annular groove (7), the circular ring groove (6), the second guide groove (16), the first guide groove (15) and the grouting hole (14) are in communication with each other.

5. A hydraulic cement pipe joint sealing structure according to claim 1, characterized in that: One side of the sealing rubber pad (12) is in contact with the bottom of the hollow annular groove (11), and the other side is in contact with the side surface of the circular ring (5).

6. A hydraulic cement pipe joint sealing structure according to claim 1, characterized in that: The outer wall of the sealing ring (13) is in contact with the inner wall of the annular cover shell (10).

Images