Plastic drainage pipeline

Abstract

The utility model relates to the technical field of drainage pipelines, and discloses a plastic drainage pipeline for solving the problem of water leakage caused by the fact that a sealing ring is extruded for a long time and loses elasticity. A connector and a clamping block are arranged at the two ends of a pipeline, a clamping groove and a sealing groove I are formed in the connector, a limiting block is arranged in the clamping groove, oblique teeth I are arranged on the inner side of the limiting block, oblique teeth II matched with the oblique teeth I are arranged on the outer side of the clamping block, a sealing groove II is formed in one end of the pipeline, and a gas sealing ring is arranged in the sealing groove II. The clamping block of the pipeline is clamped in the clamping groove of the connector, and the gas sealing ring is located between the sealing groove II and the sealing groove I; when water enters the pipelines, the pipelines are driven by the water to vibrate, the clamping blocks vibrate along with the pipelines, helical teeth II and helical teeth I move mutually, the helical teeth II slide along the helical teeth I, accordingly, the clamping blocks rotate in the clamping grooves, the distance between the clamping blocks and the limiting blocks is reduced, the two pipelines extrude the gas sealing rings, and the sealing effect is tighter during vibration.

Description

Technical Field

[0001] The present application relates to the technical field of drainage pipes, and in particular to a plastic drainage pipe. Background Art

[0002] Drainage pipes refer to the system composed of pipes and ancillary facilities that collect and discharge sewage, wastewater and rainwater, including trunk pipes, branch pipes and pipes leading to treatment plants. No matter whether they are built on the streets or anywhere else, as long as they are used for drainage, they are called drainage pipes. Drainage pipes can be divided into metal drainage pipes and non-metal drainage pipes according to the materials. Plastic drainage pipes belong to non-metal drainage pipes.

[0003] Plastic drainage pipes usually have a sealing ring between two pipes, which are then fixed together with bolts. Since plastic drainage pipes have a certain flexibility, during the drainage process, the water flow will cause the two plastic drainage pipes to vibrate and squeeze each other. The sealing ring loses its elasticity after being squeezed for a long time, resulting in water leakage at the sealing ring. Utility Model Content

[0004] The present application proposes a plastic drainage pipe, which has the advantage of preventing the sealing ring from losing its elasticity due to long-term squeezing, and is used to solve the problem of water leakage caused by the sealing ring losing its elasticity due to long-term squeezing.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a plastic drainage pipe, comprising a pipe, one end of which is fixedly installed with a connector connected to the pipe, and a plurality of clamping blocks are arranged in an annular array on the side wall of the other end of the pipe; the connector is provided with: a clamping groove, which is opened on the side of the connector away from the pipe; a limit block, which is arranged in an annular array on the inner wall of the clamping groove away from the pipe, and the inner wall of the limit block is set in an inclined shape with one end low and the other end high; a plurality of oblique teeth I, which are fixedly arranged on the inner wall of the limit block; a sealing groove I, which is opened on the side wall of the connector close to the pipe; the outer wall of the clamping block is set in an inclined shape with one end low and the other end high, and the clamping block is provided with: a plurality of oblique teeth II, which are fixedly arranged on the outer wall of the clamping block; an annular sealing groove II is opened on the end of the pipe where the clamping block is installed, and the sealing groove II is the same size as the sealing groove I, and a gas sealing ring is fixedly arranged in the sealing groove II, and the other end of the gas sealing ring extends out of the sealing groove II.

[0006] Furthermore, the number of the clamping blocks is the same as the number of the limiting blocks, and the length of the clamping blocks is equal to the length of the limiting blocks.

[0007] Furthermore, the distance between two adjacent limit blocks is greater than the length of the clamping block.

[0008] Furthermore, a plurality of mounting grooves are provided in a circular array on the side wall of the pipeline, one end of the mounting groove is connected to the sealing groove II, and one side of the mounting groove is connected to the pipeline, and the mounting groove is provided with: an air cylinder, fixedly installed on one side of the mounting groove close to the sealing groove II; a one-way valve, fixedly installed on the bottom end of the air cylinder close to the gas sealing ring and connected to the gas sealing ring; a slider, slidably installed in the air cylinder; a reset spring, provided in the air cylinder, and its two ends are respectively fixedly connected to the bottom end of the air cylinder and the slider; a connecting rod, fixedly connected to the other end of the slider, and extending into the mounting groove away from the sealing groove II; a power plate, fixedly installed on one end of the connecting rod in the mounting groove, and one side of the power plate extends into the pipeline through the connection between the mounting groove and the pipeline.

[0009] Furthermore, the return spring is always in a compressed state.

[0010] Furthermore, the power plate is in the shape of an "8".

[0011] Furthermore, a connecting hole connected to the sliding block is formed on the side wall of the installation groove, a pressure relief valve is provided at the connecting point between the connecting hole and the gas sealing ring, and the connecting hole is connected to the bottom end of the installation groove.

[0012] This application has the following beneficial effects:

[0013] 1. The present application provides a plastic drainage pipe, wherein a connector and a clamping block are fixedly installed at both ends of the pipe, a clamping groove and a sealing groove I are provided on the connector, a limit block is arranged in an array in the clamping groove, the inner wall of the limit block is inclined, an inner side of the limit block is provided with an oblique tooth I, the outer side of the clamping block is inclined and used in conjunction with the inner wall of the limit block, an oblique tooth II is provided on the outer side of the clamping block to cooperate with the oblique tooth I, a sealing groove II is provided on one end of the pipe where the clamping block is installed, and when installed, a gas sealing ring is provided in the sealing groove II and the sealing groove I, and the clamping block of the pipe is clamped on the connector The bevel teeth I and the bevel teeth II are used together, and the bevel teeth I prevent the bevel teeth II from driving the clamping block to rotate in the opposite direction; when water suddenly enters the pipeline, the water in the suddenly drained pipeline drives the pipeline to vibrate, and when the end where the clamping block is installed vibrates, the bevel teeth II of the clamping block and the bevel teeth I of the connector move relative to each other, so that the bevel teeth II slide along the bevel teeth I, so that the bevel teeth II drives the clamping block to rotate in the clamping groove, so that the distance between the clamping block and the limit block is reduced, so that the two pipelines are squeezed against each other, so that the connector and the pipeline squeeze the gas sealing ring, and when vibrating, the sealing effect is tighter.

[0014] 2. The present application provides a plastic drainage pipe, which is provided with an installation groove at the bottom end of the sealing groove II, one side of the installation groove is connected with the inside of the pipe, an air cylinder is fixedly provided on the side of the installation groove close to the sealing groove II, a one-way valve connected with a gas sealing ring is installed at the bottom end of the air cylinder, a slider is provided for sliding in the air cylinder, a return spring is provided between the slider and the one-way valve, a connecting rod is fixedly connected to the other end of the slider, and the connecting rod extends into the installation groove away from the sealing groove II, a power plate is fixedly installed on the connecting rod in the installation groove, and one side of the power plate extends into the pipe; during drainage operation, water flow impacts the power plate in the pipe, so that the power plate drives the connecting rod and the slider to move toward the one-way valve, the air in the air cylinder is squeezed, and the high-pressure gas enters the gas sealing ring through the one-way valve, thereby inflating the gas sealing ring, causing the gas sealing ring to deform to a certain extent, and sealing the gap between the gas sealing ring and the sealing groove II and the sealing groove I, to prevent the gas sealing ring from deforming after long-term use and causing water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0016] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of one end of the connector of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of one end of the clamping block of the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model when connected;

[0020] Figure 4 This is a schematic diagram of the internal structure of the gas cylinder of the utility model;

[0021] Figure 5 It is a cross-sectional view of the utility model.

[0022] In the figure: 1. pipeline; 101. mounting groove; 102. air cylinder; 103. one-way valve; 104. slider; 105. return spring; 106. connecting rod; 107. power plate; 108. connecting hole; 109. sealing groove II; 2. connector; 201. snap-fit ​​groove; 202. limit block; 203. oblique tooth I; 204. sealing groove I; 3. snap-fit ​​block; 301. oblique tooth II; 4. gas sealing ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] See also Figure 1-Figure 5 A plastic drainage pipe comprises a pipe 1, a connector 2, a clamping block 3 and a gas sealing ring 4. A connector 2 connected to the pipe 1 is fixedly installed at one end of the pipe 1. A cylindrical clamping groove 201 is provided on the side of the connector 2 away from the pipe 1. A plurality of limit blocks 202 are provided in a circular array on the inner wall of the clamping groove 201 away from the end of the pipe 1. The inner wall of the limit block 202 is set in an inclined shape with one end low and the other end high. A plurality of oblique teeth I 203 are fixedly provided on the inner wall of the limit block 202. A sealing groove I 204 is provided on the side wall of the connector 2 close to the pipe 1. The pipe 1 is also provided with a plurality of stop blocks 202 in a circular array. A plurality of clamping blocks 3 are provided in a circular array on the side wall at one end. The outer wall of the clamping block 3 is set to be inclined with one end low and the other end high, and the inclination direction is opposite to the inclination direction of the inner wall of the limit block 202. A plurality of oblique teeth II 301 are fixedly provided on the outer wall of the clamping block 3, and the oblique teeth II 301 are used in conjunction with the oblique teeth I 203. An annular sealing groove II 109 is provided at one end of the pipeline 1 on which the clamping block 3 is installed. The sealing groove II 109 is of the same size as the sealing groove I 204. A gas sealing ring 4 is fixedly provided in the sealing groove II 109, and the other end of the gas sealing ring 4 extends out of the sealing groove II 109.

[0025] The number of the clamping blocks 3 is the same as that of the limiting blocks 202, and the length of the clamping blocks 3 is equal to the length of the limiting blocks 202. It is ensured that each clamping block 3 can slide onto the inner wall of the limiting block 202, so that the limiting block 202 squeezes the clamping block 3 to ensure the squeezing and sealing of the gas sealing ring 4.

[0026] The distance between two adjacent limiting blocks 202 is greater than the length of the clamping block 3 , so as to ensure that the clamping block 3 can enter the clamping slot 201 from between two adjacent limiting blocks 202 , so that the clamping block 3 is clamped between the clamping slot 201 and the limiting block 202 .

[0027] See also Figure 1-Figure 5A plurality of mounting grooves 101 are provided in an annular array on the side wall of the pipeline 1. One end of the mounting groove 101 is communicated with the sealing groove II 109. One side of the mounting groove 101 is communicated with the pipeline 1. A gas cylinder 102 is fixedly provided on one side of the mounting groove 101 near the sealing groove II 109. A one-way valve 103 communicated with the gas sealing ring 4 is fixedly installed on the bottom end of the gas cylinder 102 near the gas sealing ring 4. A slider 104 is slidably provided in the gas cylinder 102. A return spring 105 is provided between the slider 104 and the one-way valve 103. The two ends of the return spring 105 are respectively fixedly connected to the bottom end of the gas cylinder 102 and the slider 104. The other end of the slider 104 is fixedly connected to a connecting rod 106, and the connecting rod 106 extends into the mounting groove 101 away from the sealing groove II 109. A power plate 107 is fixedly installed on one end of the connecting rod 106 in the mounting groove 101, and one side of the power plate 107 extends into the pipeline 1 through the connection between the mounting groove 101 and the pipeline 1.

[0028] The return spring 105 is always in a compressed state. The return spring 105 generates a supporting force on the slider 104. When the power plate 107 is not subjected to an external force, the return spring 105 can push the slider 104, the connecting rod 106 and the power plate 107 to return to their original positions.

[0029] The power plate 107 is in the shape of an "8". One end of the power plate 107 is slidably installed in the installation groove 101, and the other end of the power plate 107 extends into the pipe 1, and the end extending into the pipe 1 is larger than the end in the installation groove 101. When the water flow impacts the power plate 107 in the pipe 1, the power plate 107 can be subjected to a large thrust to ensure that the power plate 107 can move.

[0030] See also Figure 5 The side wall of the installation groove 101 is provided with a connecting hole 108 connected to the slider 104, and a pressure relief valve is provided at the connecting point of the connecting hole 108 and the gas sealing ring 4. The connecting hole 108 is connected to the bottom end of the installation groove 101. When the gas in the gas sealing ring 4 is discharged through the pressure relief valve and the connecting hole 108, the gas can blow out the impurities in the installation groove 101, ensuring that the power plate 107 can return to its original position.

[0031] The working principle of the utility model is as follows:

[0032] See also Figure 3 When two pipes 1 are connected, the clamping block 3 enters the clamping groove 201 through the gap between the two limit blocks 202, and the gas sealing ring 4 in the sealing groove II 109 is clamped into the sealing groove I 204. At this time, by rotating the pipe 1 with the clamping block 3, the clamping block 3 slides between the clamping groove 201 and the limit block 202, and the helical teeth II 301 of the clamping block 3 and the helical teeth I 203 on the limit block 202 fit tightly, and the helical teeth I 203 prevent the helical teeth II 301 from driving the clamping block 3 to rotate in the opposite direction.

[0033] See also Figure 1-Figure 5 When water suddenly enters the pipe 1, the water in the suddenly drained pipe 1 drives the pipe 1 to vibrate. When the end where the clamping block 3 is installed vibrates, the oblique teeth II 301 of the clamping block 3 and the oblique teeth I 203 of the connector 2 move relative to each other, so that the oblique teeth II 301 slide along the inclination angle of the oblique teeth I 203, so that the oblique teeth II 301 drive the clamping block 3 to rotate in the clamping groove 201, and the clamping block 3 slides along the inclined surface of the limit block 202, so that the distance between the clamping block 3 and the bottom end of the connector 2 is reduced, so that the two pipes 1 are squeezed against each other, so that the connector 2 and the pipe 1 squeeze the gas sealing ring 4, and during vibration, the sealing effect of the gas sealing ring 4 is made tighter.

[0034] See also Figure 1-Figure 5 During drainage operation, the water flow impacts the power plate 107 in the pipeline 1, so that the power plate 107 drives the connecting rod 106 and the slider 104 to move toward the one-way valve 103, the air in the gas cylinder 102 is squeezed, and the high-pressure gas enters the gas sealing ring 4 through the one-way valve 103, thereby inflating the gas sealing ring 4, causing the gas sealing ring 4 to deform to a certain extent, and sealing the gap between the gas sealing ring 4 and the sealing groove II 109 and the sealing groove I 204, so as to prevent the gas sealing ring 4 from deforming and causing water leakage after long-term use;

[0035] Furthermore, when the pressure in the gas sealing ring 4 reaches the pressure relief pressure of the pressure relief valve, the high-pressure gas in the gas sealing ring 4 is discharged through the pressure relief valve and the connecting hole 108. The high-pressure gas discharged from the connecting hole 108 blows out the impurities at the bottom of the mounting groove 101, preventing the impurities in the mounting groove 101 from affecting the sliding of the power plate 107, thereby ensuring that the power plate 107 can return to its original position.

Claims

1. A plastic drainage pipe, comprising a pipe (1), characterized in that: A connector (2) connected to the pipeline (1) is fixedly mounted at one end of the pipeline (1), and a plurality of clamping blocks (3) are arranged in a circular array on the side wall of the other end of the pipeline (1); The connector (2) is provided with: The clamping groove (201) is formed on a side of the connector (2) away from the pipeline (1); The limit blocks (202) are arranged in an annular array on the inner wall of the clamping groove (201) at one end away from the pipe (1), and the inner wall of the limit blocks (202) is arranged in an inclined shape with one end being low and the other end being high; A plurality of oblique teeth I (203) fixedly arranged on the inner wall of the limiting block (202); A sealing groove I (204) is formed on a side wall of the connector (2) close to the pipe (1); The outer wall of the clamping block (3) is arranged in an inclined shape with one end being low and the other end being high, and the clamping block (3) is provided with: A plurality of oblique teeth II (301) fixedly arranged on the outer wall of the clamping block (3); One end of the pipe (1) on which the clamping block (3) is mounted is provided with an annular sealing groove II (109), the sealing groove II (109) being the same size as the sealing groove I (204), a gas sealing ring (4) being fixedly arranged in the sealing groove II (109), the other end of the gas sealing ring (4) extending out of the sealing groove II (109).

2. A plastic drainage pipe according to claim 1, characterized in that: The number of the clamping blocks (3) is the same as the number of the limiting blocks (202), and the length of the clamping blocks (3) is equal to the length of the limiting blocks (202).

3. A plastic drainage pipe according to claim 1, characterized in that: The distance between two adjacent limit blocks (202) is greater than the length of the clamping block (3).

4. A plastic drainage pipe according to claim 1, characterized in that: The side wall of the pipeline (1) is provided with a plurality of installation grooves (101) in an annular array, one end of the installation groove (101) is in communication with the sealing groove II (109), one side of the installation groove (101) is in communication with the inside of the pipeline (1), and the installation groove (101) is provided with: The gas cylinder (102) is fixedly mounted on a side of the mounting groove (101) close to the sealing groove II (109); A one-way valve (103) is fixedly mounted on the bottom end of the gas cylinder (102) close to the gas sealing ring (4) and is in communication with the gas sealing ring (4); A slider (104) is slidably mounted in the air cylinder (102); A return spring (105) is disposed in the air cylinder (102), and two ends of the return spring are respectively fixedly connected to the bottom end of the air cylinder (102) and the slider (104); A connecting rod (106) is fixedly connected to the other end of the slider (104) and extends into the mounting groove (101) away from the sealing groove II (109); The power plate (107) is fixedly mounted on one end of the connecting rod (106) in the mounting groove (101), and one side of the power plate (107) extends into the pipeline (1) through the connection between the mounting groove (101) and the pipeline (1).

5. A plastic drainage pipe according to claim 4, characterized in that: The return spring (105) is always in a compressed state.

6. A plastic drainage pipe according to claim 4, characterized in that: The power plate (107) is in the shape of an "8".

7. A plastic drainage pipe according to claim 4, characterized in that: A connecting hole (108) communicating with the sliding block (104) is provided on the side wall of the installation groove (101), a pressure relief valve is provided at the connection point between the connecting hole (108) and the gas sealing ring (4), and the connecting hole (108) is connected to the bottom end of the installation groove (101).

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