Self-anchored socket connection structure and self-anchored prestressed concrete cylinder pipe
By adopting a self-anchor socket connection structure at the joints of the prestressed steel cylinder concrete pipe, the elasticity of the locking steel belt is fixed to the socket ring to form an anchor structure, which solves the problem of the joint being pulled and removed under special working conditions. Improves the stability and tightness of the connection.
Patent Information
- Application Number
- CN202421235905.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In special working conditions such as pipeline climbing and large turns, standard joints are easily pulled out, resulting in larger or larger gaps in joints, causing water leakage.
It adopts a self-anchor type socket connection structure, including socket ring, socket ring and locking steel belt. The locking steel belt is arranged inside the socket ring. Through the connection between the socket ring and the socket ring, the locking steel belt is fixed to the socket ring to form an anchor structure to enhance the connection strength.
It effectively solves the problem of pulling and disengaging PCCP joints under special working conditions, improves the stability and tightness of the connection, and is suitable for high-demand working conditions such as pipeline climbing and large turns.
Smart Images
Figure CN222479720U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete pipes, in particular to a self-anchored socket connection structure and a self-anchored prestressed steel cylinder concrete pipe. Background Art
[0002] Prestressed concrete cylinder pipe (PCCP) is a composite pipe composed of steel cylinder, concrete, high-strength steel wire and cement mortar protective layer. The standard joint of PCCP adopts socket connection, but it is difficult to meet some special working conditions, such as pipeline climbing and large turns. PCCP must resist axial thrust by setting thrust blocks or limiting joints, so as to avoid joint leakage caused by joint gap enlargement or pulling apart.
[0003] In view of this, the present utility model is proposed. Utility Model Content
[0004] One of the purposes of the utility model is to provide a self-anchoring socket connection structure of a prestressed steel cylinder concrete pipe, so as to solve the technical problem that the standard joint of PCCP in the prior art adopts a socket connection method and is pulled out due to some special working conditions such as pipeline climbing and large turns.
[0005] The second purpose of the utility model is to provide a self-anchored prestressed steel cylinder concrete pipe.
[0006] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are adopted:
[0007] In a first aspect, the utility model provides a self-anchored spigot-and-socket connection structure of a prestressed steel cylinder concrete pipe, characterized in that it comprises a spigot ring, a socket ring and a locking steel belt;
[0008] The spigot ring and the socket ring cooperate with each other to form a connection structure;
[0009] The locking steel belt is arranged on the inner side of the socket ring. When the spigot ring is connected to the socket ring, the locking steel belt and the socket ring cooperate with each other to fix the locking steel belt on the spigot ring.
[0010] Furthermore, the locking steel belt is in the shape of a non-closed circular ring, and both ends of the locking steel belt are fixed in locking holes on the socket ring.
[0011] Furthermore, fixing arms are respectively provided at both ends of the locking steel belt, and the fixing arms are located in the locking hole.
[0012] Furthermore, the fixing arm is provided with a bolt hole, and the bolt holes on the two fixing arms are fixedly connected by bolts.
[0013] Furthermore, a groove is provided on the inner wall of the socket ring at a position corresponding to the locking steel belt, and the size of the groove matches the size of the locking steel belt.
[0014] Furthermore, the locking hole is located in the groove.
[0015] Furthermore, two rubber rings arranged in parallel are provided at the contact point between the spigot ring and the socket ring.
[0016] Furthermore, a protrusion is provided on the inner wall of the socket ring, and one end of a locking steel belt is provided on the socket ring, and the vertical distance between the lower end surface of the protrusion and the outer side surface of the socket ring is less than the thickness of the locking steel belt.
[0017] Secondly, the utility model provides a self-anchored prestressed steel tube concrete pipe, comprising a pipe body and the above-mentioned self-anchored socket connection structure arranged on the pipe body.
[0018] Furthermore, one end of the pipe body is connected to the spigot ring; the other end is connected to the socket ring;
[0019] The pipe body includes, from outside to inside, a concrete protective layer, a prestressed steel wire, a pipe core concrete, and a steel cylinder arranged in the pipe core concrete;
[0020] One end of the steel cylinder is connected to the spigot ring, and the other end is connected to the socket ring.
[0021] The utility model provides a self-anchoring socket connection structure of a prestressed steel cylinder concrete pipe. By arranging a locking steel belt on the inner side of the socket ring and utilizing the elasticity of the locking steel belt, when the socket ring is connected with the socket ring, the locking steel belt can be tightened by the socket ring to cooperate with each other to fix the locking steel belt on the outer wall of the socket ring, so that the locking steel belt and the socket ring are tightly connected; the socket ring, the socket ring and the locking steel belt cooperate with each other to form an anchoring structure. The technical problem of the standard joint of PCCP in the prior art adopting the socket connection method causing the joint to be pulled out under some special working conditions such as pipeline climbing and large turns is solved.
[0022] On the other hand, the utility model provides a self-anchored prestressed steel cylinder concrete pipe, which improves the connection stability between prestressed steel cylinder concrete pipes through a self-anchored socket connection structure, so as to be suitable for special working conditions such as pipeline climbing and large turns that require high connection stability and tightness. It solves the technical problem that the standard joint of PCCP in the prior art adopts a socket connection method, which causes the joint to be pulled out in some special working conditions such as pipeline climbing and large turns. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 A schematic diagram of an unlocked connection state of a self-anchoring socket connection structure of a prestressed steel cylinder concrete pipe provided in Example 1 of the utility model;
[0025] Figure 2 A schematic diagram of a locked connection state of a self-anchoring socket connection structure of a prestressed steel cylinder concrete pipe provided in Example 1 of the utility model;
[0026] Figure 3 for Figure 2 A schematic diagram of the enlarged structure in the middle.
[0027] Icon: 1-socket ring;
[0028] 2- socket ring; 21- locking hole; 22- protrusion; 23- groove;
[0029] 3-locking steel belt; 31-fixed arm; 311-bolt hole;
[0030] 4- pipe body; 41- protective layer; 42- prestressed steel wire; 43- pipe core concrete; 44- steel cylinder;
[0031] 5- Rubber ring. DETAILED DESCRIPTION
[0032] Unless otherwise defined herein, scientific and technical terms used in conjunction with the present invention shall have the meanings commonly understood by those of ordinary skill in the art. The meaning and scope of the terms should be clear, however, in the case of any potential ambiguity, the definitions provided herein take precedence over any dictionary or external definitions. In this application, unless otherwise stated, the use of "or" means "and / or". In addition, the use of the term "including" and other forms is non-restrictive.
[0033] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.
[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0035] In the description of the present utility model, it should be noted that the terms "proximal end", "distal end", "front end", "rear end", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0036] The terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0038] On one hand, the utility model provides a self-anchored spigot connection structure of a prestressed steel cylinder concrete pipe, comprising a spigot ring 1, a socket ring 2 and a locking steel belt 3;
[0039] The spigot ring 1 and the socket ring 2 cooperate with each other to form a connection structure;
[0040] The locking steel belt 3 is arranged on the inner side of the socket ring 2 . When the socket ring 1 is connected to the socket ring 2 , the locking steel belt 3 and the socket ring 2 cooperate with each other to fix the locking steel belt 3 on the socket ring 1 .
[0041] By setting a locking steel belt 3 on the inner side of the socket ring 2 and utilizing the elasticity of the locking steel belt 3, when the socket ring 1 is connected with the socket ring 2, the locking steel belt 3 can be tightened by the socket ring 2 to cooperate with each other to fix the locking steel belt 3 on the outer wall of the socket ring 1, so that the locking steel belt 3 is tightly connected with the socket ring 1; the socket ring 1, the socket ring 2 and the locking steel belt 3 cooperate with each other to form an anchoring structure. The technical problem of the standard joint of PCCP in the prior art using the socket connection method causing the joint to be pulled out under some special working conditions such as pipeline climbing and large turns is solved.
[0042] In some specific implementations, the locking steel belt 3 is in a non-closed circular ring shape, and both ends of the locking steel belt 3 are fixed in the locking holes 21 on the socket ring 2 .
[0043] The non-closed circular ring structure has a certain elasticity when the two ends are in a free state, so that the two ends expand outward, and the locking steel belt 3 is tightly fitted with the inner side of the socket ring 2 due to the outward expansion force; when the two ends are fixed, a closed circular ring structure is formed, which reduces the outer diameter and the separation from the inner side of the socket ring 2, and fits with the socket ring 1 and is fixed on the socket ring 1.
[0044] When the plug ring 1 is connected to the socket ring 2, since the locking steel belt 3 is located on the inner side of the socket ring 2, in order to facilitate the fixed connection and tightening of the two ends of the locking steel belt 3, in some specific embodiments, the two ends of the locking steel belt 3 are respectively provided with fixed arms 31, and the fixed arms 31 are located in the locking hole 21.
[0045] The two ends of the locking steel belt 3 can be fixed by the fixing arm 31 located in the locking hole 21, and the locking hole 21 has a limiting effect on the locking steel belt 3 by cooperating with the fixing arm 31 to prevent the locking steel belt from moving along the outer wall of the socket ring 1.
[0046] The size of the locking hole 21 can be set according to actual conditions. When the fixing arms 31 at both ends of the locking steel belt 3 are not fixed, the two fixing arms 31 are located at both ends of the locking hole 21 due to the expansion of the locking steel belt 3 .
[0047] In some specific implementations, a bolt hole 311 is provided on the fixing arm 31 , and the bolt holes 311 on the two fixing arms 31 are fixedly connected by bolts.
[0048] In order to increase the stability of the self-anchoring socket connection structure, it is necessary to prevent the locking steel belt 3 from being displaced by external forces and from being separated from the socket ring 2 to affect its use.
[0049] In some specific implementations, a groove 23 is provided on the inner wall of the socket ring 2 at a position corresponding to the locking steel belt 3 , and the size of the groove 23 matches the size of the locking steel belt 3 .
[0050] By providing the groove 23 , in an unlocked state, the groove 23 can be used to accommodate the locking steel belt 3 to prevent the locking steel belt 3 from being displaced.
[0051] In some specific implementations, the locking hole 21 is located in the groove 23 .
[0052] In order to further improve the tightness of the connection of the self-anchoring socket connection structure.
[0053] In some specific embodiments, two rubber rings 5 arranged in parallel are provided at the contact point between the spigot ring 1 and the socket ring 2 .
[0054] In some specific embodiments, a protrusion 22 is provided on the inner wall of the socket ring 2, and one end of a locking steel belt 3 is provided on the socket ring 2, and the vertical distance between the lower end surface of the protrusion 22 and the outer surface of the plug ring 1 is less than the thickness of the locking steel belt 3.
[0055] When the two ends of the locking steel belt 3 are in a free state, the protrusions 22 are used to prevent the locking steel belt 3 from escaping from the socket ring.
[0056] After locking, since the vertical distance between the lower end surface of the protrusion 22 and the outer side surface of the socket ring 1 is smaller than the thickness of the locking steel belt 3, the protrusion 22 can prevent the locking steel belt 3 from shifting in the locked state, affecting the stability of the connection structure.
[0057] According to another aspect of the present invention, a self-anchored prestressed steel cylinder concrete pipe is provided, comprising a pipe body 4 and the above-mentioned self-anchored socket connection structure arranged on the pipe body 4 .
[0058] The self-anchored socket connection structure improves the connection strength between prestressed steel cylinder concrete pipes, and is suitable for special working conditions such as pipeline climbing and large turns that require high connection strength and tightness. It solves the technical problem of the standard PCCP joint in the prior art using a socket connection method, which causes the joint to be pulled out in some special working conditions such as pipeline climbing and large turns.
[0059] In some specific implementations, one end of the tube body 4 is connected to the spigot ring 1 , and the other end is connected to the socket ring 2 .
[0060] The pipe body 4 includes, from outside to inside, a protective layer 41, a prestressed steel wire 42, a pipe core concrete 43, and a steel cylinder 44 disposed in the pipe core concrete 43;
[0061] One end of the steel cylinder 44 is connected to the spigot ring 1 , and the other end is connected to the socket ring 2 .
[0062] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0063] Example 1
[0064] Combination Figure 1 to Figure 3 To illustrate, a self-anchored spigot connection structure of a prestressed steel tube concrete pipe includes a spigot ring 1, a socket ring 2 and a locking steel belt 3. The spigot ring 1 and the socket ring 2 cooperate with each other to form a connection structure, and two parallel rubber rings 5 are provided at the contact point between the spigot ring 1 and the socket ring 2. The locking steel belt 3 is arranged on the inner side of the socket ring 2, and the locking steel belt 3 is a non-closed circular ring. The fixed arms 31 at both ends of the locking steel belt 3 are fixed in the locking holes 21 on the socket ring 2 by bolts.
[0065] A groove 23 is provided on the inner wall of the socket ring 2, and the size of the groove 23 matches the size of the locking steel belt 3. A protrusion 22 is also provided on one end of the socket ring 2 where the locking steel belt 3 is provided, and the vertical distance between the lower end surface of the protrusion 22 and the outer side surface of the spigot ring 1 is less than the thickness of the locking steel belt 3.
[0066] Example 2
[0067] Combination Figure 1 A self-anchored prestressed steel cylinder concrete pipe comprises a pipe body 4 and a self-anchored spigot connection structure of embodiment 1 arranged on the pipe body 4.
[0068] Specifically, the pipe body 4 includes a protective layer 41, a prestressed steel wire 42, a pipe core concrete 43 and a steel cylinder 44 arranged in the pipe core concrete 43 from the outside to the inside; one end of the steel cylinder 44 is connected to the spigot ring 1, and the other end is connected to the socket ring 2.
[0069] Working principle:
[0070] Taking the self-anchored prestressed steel cylinder concrete pipe provided in Example 3 as an example, Figure 1 and Figure 2 Provide explanation.
[0071] When the plug ring 1 and the socket ring 2 are not connected, the fixed arms 31 at both ends of the non-closed circular locking steel belt 3 are not fixed and are in a free state. At this time, the two ends of the locking steel belt 3 expand outward, so that the locking steel belt 3 is tightly fitted with the inner side of the socket ring 2 by the outward expansion force and is located in the groove 23. The two fixed arms 31 are located at both ends of the locking hole 21 and are relatively stable due to the limiting effect of the groove 23.
[0072] When the spigot ring 1 is connected to the socket ring 2, Figure 1 The figure shows that the spigot ring 1 is connected to the socket ring 2 but the locking steel belt 3 is not locked. By moving the two fixing arms 31 at both ends of the locking hole 21 toward each other, when the locking steel belt 3 is fixed on the spigot ring 1, the two fixing arms 31 are connected by bolts, so that the locking steel belt 3 is always fixed on the spigot ring 1. Figure 2 The figure shows that the spigot ring 1 is connected to the socket ring 2 and the locking steel band 3 is locked, wherein the protrusion 22 is in a state of blocking the locking steel band 3 from moving away from the socket ring 2.
[0073] By setting a locking steel belt 3 on the inner side of the socket ring 2 and utilizing the elasticity of the locking steel belt 3, when the socket ring 1 is connected to the socket ring 2, the locking steel belt 3 can be tightened by the socket ring 2 to cooperate with each other to fix the locking steel belt 3 on the outer wall of the socket ring 1, so that the locking steel belt 3 is tightly connected to the socket ring 1; the socket ring 1, the socket ring 2 and the locking steel belt 3 cooperate with each other to improve the strength of the socket connection, improve the connection performance between the prestressed steel cylinder concrete pipes, and make it suitable for special working conditions with high requirements for pipeline connection, such as pipeline climbing and large turns. The technical problem of the standard joint of PCCP in the prior art using the socket connection method causing the joint to be pulled out in some special working conditions such as pipeline climbing and large turns is solved.
[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A self-anchored socket connection structure of a prestressed steel cylinder concrete pipe, characterized in that: It comprises a spigot ring (1), a socket ring (2) and a locking steel belt (3); The spigot ring (1) and the socket ring (2) cooperate with each other to form a connection structure; The locking steel belt (3) is arranged on the inner side of the socket ring (2); when the socket ring (1) is connected to the socket ring (2), the locking steel belt (3) and the socket ring (2) cooperate with each other to fix the locking steel belt (3) on the socket ring (1).
2. The self-anchoring socket connection structure according to claim 1, characterized in that: The locking steel belt (3) is in the shape of a non-closed circular ring, and both ends of the locking steel belt (3) are fixed in locking holes (21) on the socket ring (2).
3. The self-anchoring socket connection structure according to claim 2, characterized in that: The locking steel belt (3) is provided with fixing arms (31) at both ends respectively, and the fixing arms (31) are located in the locking hole (21).
4. The self-anchoring socket connection structure according to claim 3, characterized in that: The fixing arm (31) is provided with a bolt hole (311), and the bolt holes (311) on the two fixing arms (31) are fixedly connected by bolts.
5. The self-anchoring socket connection structure according to claim 2, characterized in that: A groove (23) is provided on the inner wall of the socket ring (2) at a position corresponding to the locking steel belt (3), and the size of the groove (23) matches the size of the locking steel belt (3).
6. The self-anchoring socket connection structure according to claim 5, characterized in that: The locking hole (21) is located in the groove (23).
7. The self-anchoring socket connection structure according to claim 1, characterized in that: Two rubber rings (5) arranged in parallel are provided at the contact point between the spigot ring (1) and the socket ring (2).
8. The self-anchoring socket connection structure according to any one of claims 1 to 7, characterized in that: A protrusion (22) is provided on the inner wall of the socket ring (2), and one end of a locking steel belt (3) is provided on the socket ring (2), and the vertical distance between the lower end surface of the protrusion (22) and the outer side surface of the socket ring (1) is less than the thickness of the locking steel belt (3).
9. A self-anchored prestressed steel cylinder concrete pipe, characterized in that: The invention comprises a pipe body (4) and a self-anchoring socket connection structure as claimed in any one of claims 1 to 8 arranged on the pipe body (4).
10. The self-anchored prestressed steel cylinder concrete pipe according to claim 9, characterized in that: One end of the pipe body (4) is connected to the spigot ring (1); the other end is connected to the socket ring (2); The pipe body (4) comprises, from outside to inside, a protective layer (41), a prestressed steel wire (42), a pipe core concrete (43), and a steel cylinder (44) arranged in the pipe core concrete (43); One end of the steel cylinder (44) is connected to the spigot ring (1), and the other end is connected to the socket ring (2).