A high-flow rate water supply pipeline and its connector structure

Abstract

The invention discloses a high-flow rate water conservancy water supply pipeline and a connector structure thereof, which relate to the technical field of pipelines, and include a first pipeline and a second pipeline. A socket is arranged at one end of the first pipeline, and a plug matched with the socket is arranged at one end of the second pipeline. A first accommodating cavity is provided in the socket, and a second accommodating cavity is provided on the outer side of the plug. A sealing ring is provided in the first accommodating cavity and the second accommodating cavity to form a seal. A placement groove with an arc-shaped cross-section is provided on the inner side of the socket, and the arc-shaped side surface of the sealing ring conflicts with the arc-shaped side wall of the first accommodating cavity. This high-flow rate water conservancy water supply pipeline and a connector structure thereof, by arranging two chambers in the first pipeline and the second pipeline, and matching with a sealing ring with a semi-lunar cross-section, during installation, the sealing ring rotates rather than directly rubs, which can effectively reduce damage to the sealing ring, thereby better ensuring the sealing effect of the sealing ring, avoiding acceptance failure due to damage to the sealing ring during installation, and thus prolonging the construction period.

Description

Technical Field

[0001] The invention relates to the technical field of pipelines, in particular to a high-flow rate hydraulic water supply pipeline and a connector structure thereof. Background Art

[0002] In long-distance and large-area water diversion projects, prestressed steel cylinder concrete pipes are often used as the main transmission channels. Prestressed steel cylinder concrete is generally connected into longer pipes in the form of sockets and spigots, that is, one end of the pipe body is a socket and the other end is a spigot. The socket of one pipe is connected to the spigot of another pipe.

[0003] In the existing prestressed steel cylinder concrete, a receiving groove is provided on the annular side wall of the spigot or the socket, and a sealing ring is provided through the receiving groove. Because the sealing ring needs to play a sealing role, the thickness of the sealing ring must exceed the receiving groove, so that when the socket and the spigot are matched, the sealing ring is partially compressed to form a seal. However, because the sealing ring exceeds the annular side wall of the spigot or the socket, when the pipes are butt-jointed, the side wall of the spigot or the socket will generate a friction force on the side wall of the sealing side of the sealing ring that is approximately in the axial direction of the pipe (there is a draft angle on the surface of the spigot and the socket), such as Figure 2 As shown in the figure, the friction may cause damage to the surface of the sealing ring. The surface where the friction acts is the main sealing surface, which affects the subsequent sealing effect. If damage is caused, it will affect the acceptance and thus affect the overall project cycle. In addition, the damage caused by friction will shorten the service life of the sealing ring. To this end, we propose a high-flow rate water supply pipeline and its connector structure. Summary of the invention

[0004] The object of the present invention is to provide a high-flow rate water supply pipeline and a connector structure thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-flow rate water conservancy water supply pipeline and its connector structure, comprising a first pipeline and a second pipeline, a socket is arranged at one end of the first pipeline, a plug matching the socket is arranged at one end of the second pipeline, a first accommodating cavity 1 with a tooth-shaped cross section is provided on the inner side wall of the socket, or a first accommodating cavity 2 with a tooth-shaped cross section is provided on the outer side wall of the plug, a second accommodating cavity 1 with a tooth-shaped cross section is provided on the outer side wall of the plug, or a second accommodating cavity 2 with a tooth-shaped cross section is provided on the inner side wall of the socket, a sealing ring with a semi-lunar cross section is arranged in the first accommodating cavity 1 and the second accommodating cavity 1 to form a semi-lunar cross section chamber to form a seal, or a sealing ring is arranged in the first accommodating cavity The second and second accommodating chambers are provided with an arc-shaped placement groove one on the inner side wall of the socket located on the straight section wall side of the accommodating chamber, or the outer side wall of the plug located on the straight section wall side of the accommodating chamber is provided with an arc-shaped placement groove two on the inner side wall of the socket located on the straight section wall side of the accommodating chamber. In the initial state, the sealing ring is placed obliquely in the placement groove one or the placement groove two, and the arc-shaped side surface of the sealing ring contacts the arc-shaped side wall of the first accommodating chamber one, or the arc-shaped side surface of the sealing ring contacts the arc-shaped side wall of the first accommodating chamber two, and when the first pipe and the second pipe move toward each other and dock, the sealing ring is rotated and filled into the first accommodating chamber one and the second accommodating chamber one for sealing, or when the first pipe and the second pipe move toward each other and dock, the sealing ring is rotated and filled into the first accommodating chamber two and the second accommodating chamber two for sealing.

[0006] Preferably, the second accommodating cavity 1 and the placement groove 2 are both opened on the outer side wall of the socket of the second pipe.

[0007] Preferably, a positioning ring is provided on the inner wall of the second placement groove, and the positioning ring is used to locate the initial placement state and position of the sealing ring.

[0008] Preferably, the curvature of the arc-shaped side wall of the second placement groove decreases along the X-axis.

[0009] Preferably, the cross-section of the sealing ring is half-moon shaped and the half-moon shape exceeds a semicircle.

[0010] Preferably, an annular protrusion is provided on the straight section side of the sealing ring, and the elastic modulus of the annular protrusion is greater than that of the sealing ring.

[0011] Preferably, the sealing ring is conical in an initial state, and the arc surface is the outer surface.

[0012] Preferably, the ends of the first pipe and the second pipe are both provided with steps, and limiting rings are provided on the steps.

[0013] Preferably, an elastic rod is arranged in a ring shape on the inner wall of the first accommodating chamber 1, and the elastic rod is used to contact the sealing ring in advance to increase the initial angle of the sealing ring.

[0014] Preferably, it comprises an annular tube sleeved with the first pipe and the second pipe, and an attachment plate extending in the radial direction is provided on the inner wall of the annular tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides two chambers in the first pipe and the second pipe, and cooperates with a sealing ring with a half-moon cross-section. During installation, the sealing ring rotates instead of directly rubbing, which can effectively reduce damage to the sealing ring, thereby better ensuring the sealing effect of the sealing ring, avoiding acceptance failure due to damage to the sealing ring during installation, and thus prolonging the construction period;

[0017] When the two side walls of the chamber where the sealing ring of the present invention is installed are of the same width as a whole, the sealing surface is longer than that of the block-shaped one, so the sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The figure is a schematic diagram of the installation process of the existing sealing ring;

[0020] Figure 3 This is a schematic diagram of the structure of the sealing ring when the initial turntable is installed on the first pipeline;

[0021] Figure 4 This is a schematic diagram of the structure of the sealing ring when the initial turntable is installed on the second pipeline;

[0022] Figure 5 It is a schematic diagram of the initial extrusion state of the sealing ring when two pipes are butt-jointed;

[0023] Figure 6 This is a schematic diagram of the changing trend of the sealing ring extrusion state after the two pipes are butt-jointed;

[0024] Figure 7 This is a schematic diagram of the state of the sealing ring after it is squeezed and changed;

[0025] Figure 8 This is a schematic diagram of the sealing ring after installation;

[0026] Fig. 9 It is a schematic diagram of the overall cross-section structure of the sealing ring;

[0027] Fig.10 Schematic diagram of three states of the sealing ring;

[0028] Fig.11 This is the position structure diagram of the elastic rod.

[0029] In the figure:

[0030] In the figure: 1-first pipe; 101-first accommodating chamber 1; 101'-second accommodating chamber 2; 11-socket; 201-second accommodating chamber 1; 201'-first accommodating chamber 2; 2-second pipe; 21-socket; 102-slot 1; 202-slot 2; 2021-positioning ring; 3-sealing ring; 31-annular protrusion; 4-step; 41-limiting ring; 5-annular cylinder; 51-attachment plate; 7-elastic rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention provides a technical solution: a high-flow rate water conservancy water supply pipeline, comprising a first pipeline 1 and a second pipeline 2, the first pipeline 1 and the second pipeline 2 are two ends of the same pipeline, and also belong to two matching ends of different pipelines, the middle area of ​​the end of the first pipeline 1 is concave to form an annular socket 11, and the middle area of ​​the end surface of the end of the second pipeline 2 is convex to form a socket 21, the socket 21 and the socket 11 are plug-fitted, the surfaces of the socket 21 and the socket 11 are inclined, and have a small draft angle. In order to show it more clearly in the figure, the draft angle is set larger, preferably 1°-5°, the contact surface between the socket 11 and the socket 21 is the main sealing surface, and a sealing ring 3 is set on the contact surface for sealing, and the sealing ring 3 is set on the inner surface of the socket 11 or the outer surface of the socket 21;

[0033] There are two ways to set the sealing ring 3. Figure 3 As shown, a second accommodating cavity 2 101' and a placement groove 102 are provided on the inner wall of the socket 11 of the first pipe 1. The placement groove 102 is communicated with the second accommodating cavity 2 101' and is used to initially place the sealing ring 3, that is, the cross section of the sealing ring 3 is in an inclined state, and one edge is raised. During the process of the first pipe 1 and the second pipe 2 moving toward each other (the direction of the arrow is the direction of the moving toward each other), the raised position of the edge of the sealing ring 3 contacts the first accommodating cavity 201' in the second pipe 2 and rotates during the continuous movement;

[0034] Another way of sealing ring 3 is to open a second accommodating cavity 201 and a second placement groove 202 on the outer surface of the second pipe 2. Figure 4 As shown, the second placement groove 202 is used to place the sealing ring 3;

[0035] Because the method of opening the second accommodating cavity 1 201 and the placement groove 202 on the outer surface of the second pipe 2 is more conducive to the installation of the sealing ring 3, this method is preferred, and the following analysis process is described according to the setting of this method. The cross-sections of the first accommodating cavity 101 and the second accommodating cavity 1 201 are both half of a crescent shape, that is, a tooth shape, and the two are opposite to each other in the final matching state, and together constitute a sealing groove to accommodate the sealing ring 3 to form a seal. The cross-section of the sealing ring 3 is semicircular. In the initial state, the sealing ring 3 is placed in the placement groove 202, and the arc surface in the cross-section state faces downward, and one end of the other side is tilted. When the first pipe 1 and the second pipe 2 move toward each other, the tilted end hits the arc-shaped side wall of the first accommodating cavity 101, and in the process of continuing to move, the sealing ring 3 will be compressed and rotated. Figure 5 and 6 As shown, the initial extrusion points are points M and N, and the line formed by points M and N rotates. In the actual installation process, only one pipe moves, so the rotation is based on point M or N. Because as the movement continues, the vertical section of the cross section of the sealing ring 3 will gradually approach the horizontal, and cooperate with the arc section of the first accommodating cavity 101 and the second accommodating cavity 201. The force at the contact point causes it to slide, thereby changing the position of points M and N, thereby achieving Figure 7 As the movement continues, the process is repeated until the sealing ring 3 enters the first accommodating chamber 101 and the second accommodating chamber 201 to form a completely sealed state. Figure 8 As shown, during the rotation process, the sealing ring 3 also has a worn area, namely the worn area in the figure, but this area only occupies a small part of the sealing line of the sealing ring 3. Unlike the block-shaped sealing ring 3, the entire surface is worn, and when the sealing ring 3 of the present scheme is in the final state, the sealing ring 3 is not in a tangential stress state, which can better protect the sealing ring 3.

[0036] See also Fig. 9 and Fig.10 , the natural state of the sealing ring 3 is as follows Fig.10 The A3 state in the figure, that is, the angle between the straight line segment of the cross section and the vertical direction is α, and the angle between the straight line segment of the cross section of the first accommodating cavity 101 and the second accommodating cavity 201 and the vertical direction is the same. When installing, adjust the state of the sealing ring 3 to Fig.10 In the A1 state, when the two pipes move toward each other, the sealing ring 3 is rotated. Due to the extrusion rotation, the sealing ring 3 approaches Fig.10 In this critical state, the seal ring 3 will quickly change to the A2 state if the rotation continues. Fig.10The A3 state in the middle facilitates the sealing ring 3 to enter the second accommodating chamber 201, thereby achieving better sealing.

[0037] See also Figure 4 In order to more accurately place the position and state of the sealing ring 3, an annular positioning ring 2021 is provided. The positioning ring 2021 is provided in the second placement groove 202. Further, the cross section of the positioning ring 2021 is semicircular and is provided integrally with the tube body.

[0038] See also Fig. 9 The cross section of the sealing ring 3 is generally in the shape of a plate circle, that is, a half-moon. If the cross section of the sealing ring 3 does not contain its center, the sealing ring 3 is prone to bending when subjected to extrusion force, that is, the cross section is as follows: Fig. 9 The two ends of the tube are bent to the left and squeezed, and if it exceeds a semicircle, it can better resist compression;

[0039] Furthermore, an annular protrusion 31 is provided on one side of the straight section of the sealing ring 3, and the annular protrusion 31 is used to strengthen the portion, and further, the annular protrusion 31 is made of a different material from the sealing ring 3, and the elastic modulus of the annular protrusion 31 is greater than that of the sealing ring 3, that is, the elastic deformation resistance is stronger, so as to prevent the sealing ring 3 from being squeezed and folded when rotating;

[0040] In addition, the annular protrusion 31 can also serve as a fulcrum. Figure 7 In this state, the annular protrusion 31 can contact the edge point of the first accommodating cavity 101 in advance to form a fulcrum.

[0041] See also Figure 1 The function of the step 4 is to form an attachment surface when the concrete is filled, so as to better connect the two pipes, while the limiting ring 41 forms an axial restriction to make the connection more stable.

[0042] See also Fig.11 The elastic rod 7 can lift the sealing ring 3 in advance so that it can rotate earlier. As the rotation process progresses, the pressure increases, and then the elastic rod 7 bends and is pushed against the inner wall of the first accommodating chamber 101. Furthermore, a groove corresponding to the elastic rod 7 is provided at a corresponding position of the inner wall of the first accommodating chamber 101, so that the elastic rod 7 will not be placed between the sealing ring 3 and the first accommodating chamber 101.

[0043] See also Fig.11 The annular tube 5 and the attachment plate 51 form a connector. A through hole is also provided on the annular tube 5 for filling concrete. The annular tube 5 facilitates better shaping of the concrete, while the attachment plate 51 increases the attachment surface of the concrete and improves the attachment strength.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-flow rate water supply pipeline, comprising a first pipeline (1) and a second pipeline (2), wherein one end of the first pipeline (1) is provided with a socket (11), and one end of the second pipeline (2) is provided with a plug (21) matching with the socket (11), characterized in that: The outer wall of the plug (21) is provided with a first accommodating chamber (201') with a tooth-shaped cross section, and the inner wall of the socket (11) is provided with a second accommodating chamber (101') with a tooth-shaped cross section. A sealing ring (3) with a semi-lunar cross section is arranged in the semi-lunar cross section chamber formed by the first accommodating chamber (201') and the second accommodating chamber (101') to form a seal. The straight section wall side of the accommodating chamber on which the inner wall of the socket (11) is located is provided with a placement groove (102) with an arc-shaped cross section. In the initial state, the sealing ring (3) is tiltedly placed in the placement groove (102). During the process of the first pipe (1) and the second pipe (2) moving toward each other and docking, the arc-shaped side wall of the first accommodating chamber (201') contacts the arc-shaped side surface of the sealing ring (3) and causes it to rotate, and is filled into the first accommodating chamber (201') and the second accommodating chamber (101') to form a seal.

2. A high-flow rate water supply pipeline, comprising a first pipeline (1) and a second pipeline (2), wherein one end of the first pipeline (1) is provided with a socket (11), and one end of the second pipeline (2) is provided with a socket (21) matching with the socket (11), characterized in that: The inner wall of the socket (11) is provided with a first accommodating cavity (101) with a tooth-shaped cross section, and the outer wall of the plug (21) is provided with a second accommodating cavity (201) with a tooth-shaped cross section. A sealing ring (3) with a semi-lunar cross section is arranged in the semi-lunar cross section cavity formed by the first accommodating cavity (101) and the second accommodating cavity (201) to form a seal. The straight section wall side of the accommodating cavity on which the outer wall of the plug (21) is located is provided with a placement groove (202) with an arc-shaped cross section. In the initial state, the sealing ring (3) is tiltedly placed in the placement groove (202). During the process of the first pipe (1) and the second pipe (2) moving toward each other and docking, the arc-shaped side wall of the first accommodating cavity (101) contacts the arc-shaped side surface of the sealing ring (3) and causes it to rotate, and fills the first accommodating cavity (101) and the second accommodating cavity (201) to form a seal.

3. A high-flow rate water supply pipeline according to claim 2, characterized in that: The second accommodating cavity 1 (201) and the placement groove 2 (202) are both provided on the outer side wall of the socket (21) of the second pipe (2).

4. A high-flow rate water supply pipeline according to claim 3, characterized in that: The inner wall of the second placement groove (202) is provided with a positioning ring (2021), and the positioning ring (2021) is used to locate the initial placement state and position of the sealing ring (3).

5. A high-flow rate water supply pipeline according to claim 1 or 2, characterized in that: The cross section of the sealing ring (3) is in the shape of a half moon and the half moon exceeds a semicircle.

6. A high-flow rate water supply pipeline according to claim 1 or 2, characterized in that: An annular protrusion (31) is provided on the straight section side of the sealing ring (3), and the elastic modulus of the annular protrusion (31) is greater than that of the sealing ring (3).

7. A high-flow rate water supply pipeline according to claim 1 or 2, characterized in that: The sealing ring (3) is initially conical, with the arc surface being the outer surface.

8. A high-flow rate water supply pipeline according to claim 1 or 2, characterized in that: The outer edges of the opposite ends of the first pipe (1) and the second pipe (2) are both provided with a step (4) used as a concrete filling attachment surface, and a limiting ring (41) is provided on the step (4).

9. The high-flow rate water supply pipeline according to claim 3, characterized in that: The inner wall of the first accommodating chamber (101) is provided with an elastic rod (7) in an annular arrangement, and the elastic rod (7) is used to contact the sealing ring (3) in advance to increase the initial angle of the sealing ring (3).

10. The connector structure of a high-flow water supply pipeline according to claim 8, characterized in that: It comprises an annular tube (5) sleeved with a first pipe (1) and a second pipe (2), and an attachment plate (51) extending in the radial direction is provided on the inner wall of the annular tube (5), and the attachment plate (51) is used for filling concrete and attaching when the first pipe (1) and the second pipe (2) are in a butt joint state.

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