A structure of a reducing tee joint

Abstract

The utility model relates to the technical field of reducing tee pipe, specifically relates to a reducing tee pipe joint structure. The structure is equipped with first reinforcing plate on the outer side of the both ends of pipeline main body, is equipped with first reinforcing rib to form first clamping groove on the inner side, is equipped with first limiting block with first big gasket and first screw thread on the inner wall. The end of branch pipe is equipped with second reinforcing plate and second reinforcing rib to form second clamping groove, is equipped with second limiting block with first small gasket and second screw thread on the inner wall. Flange assembly is screwed into the pipeline main body and branch pipe through the screw pipe with pressure plate, extrudes double gasket to form sealing. The utility model makes single interface support the clamp straight connection, threaded connection or flange assembly simultaneously, realizes switching connection mode without changing the body, solves the problem that prefabricated interface cannot be changed, double gasket improves the sealing property, reinforcing plate and reinforcing rib enhance the compression resistance, form the reducing tee pipe joint structure that is connected flexibly and sealed reliably.

Description

Technical Field

[0001] This utility model relates to the field of reducing tee pipe technology, and in particular to a reducing tee pipe joint structure. Background Technology

[0002] ① Traditional reducing tee connections use a standardized design, meaning all interfaces are either welded flanges, purely threaded connections, or purely clamp structures. This single connection method forces external pipelines to match the tee's pre-defined interfaces: if the tee uses a welded flange, the external pipeline must simultaneously weld a flange; if the tee uses a threaded interface, the external pipeline needs to be machined with corresponding threads. Therefore, the piping system is forced to change its connection method to accommodate the tee structure, significantly increasing construction complexity and modification costs.

[0003] ② To solve the above problems, existing technologies use differentiated prefabricated connection structures at each interface of the tee pipe (e.g., grooves at both ends of the main pipe and threads on the branch pipes). This solution allows the construction party to select the corresponding interface according to the characteristics of the external pipeline: pipes with flanges can be connected to groove interfaces, and pipes with threads can be screwed into threaded interfaces of branch pipes. The core technological improvement lies in the fact that a single tee pipe integrates multiple prefabricated interfaces (grooves / threads / flanges), reducing the need for pipeline system modification.

[0004] ③ Although existing technologies offer multiple interface options, the connection form of each interface is fixed during production (e.g., the combination of "main pipe slot + branch thread" cannot be changed); when the connection method needs to be temporarily adjusted on site (e.g., the branch pipe needs to be changed from threaded connection to clamp connection), the entire tee pipe must be replaced. This results in the non-reconfigurability of prefabricated combinations severely restricting the adaptability to emergency scenarios. The binding relationship between interface function and the main structure forces high secondary modification costs when changing the connection method. In order to cover different combination requirements, it is necessary to stockpile tee pipes with multiple interface combinations (e.g., slot + slot, thread + thread), which greatly increases the pressure of warehousing management. Prefabricated interface structures that are not used during production (e.g., branch pipe slots) become ineffective redundancy, directly reducing material utilization and structural efficiency. Summary of the Invention

[0005] The purpose of this utility model is to provide a reducing tee pipe joint structure, which breaks through the limitation of fixed interface function by using the parallel design of groove and thread, and solves the technical problem that the interface connection method of prefabricated combined tee pipes cannot be changed.

[0006] To achieve the above objectives, this utility model provides a reducing tee pipe joint structure, including a pipe body, with a first reinforcing plate on the outer side of each end of the pipe body, and a first reinforcing rib on the side of the pipe body adjacent to the first reinforcing plate. A first groove is formed between the first reinforcing plate and the first reinforcing rib for external clamping and fixing. A first limiting block is provided on the inner wall of each end of the pipe body, and a first large sealing gasket is covered on the first limiting block. A first thread is provided on the inner wall of each end of the pipe body adjacent to the first limiting block.

[0007] A branch pipe is fixedly installed on the side of the main pipe away from the first reinforcing plate. A second reinforcing plate is provided on the outer side of the extended end of the branch pipe. A second reinforcing rib is provided on the side of the branch pipe adjacent to the second reinforcing plate. A second groove is formed between the second reinforcing plate and the second reinforcing rib for external clamping and fixing.

[0008] The branch pipe has a second limiting block on its inner wall at the outer end, and a first small sealing gasket on the second limiting block. The inner wall of the branch pipe at the outer end is provided with a second thread on the side adjacent to the second limiting block. The inner walls of the main pipe and the branch pipe are respectively provided with flange assemblies through the first thread and the second thread.

[0009] The flange assembly includes a large flange and a small flange. The large flange has a first assembly hole for bolts to pass through and connect to external pipes.

[0010] A first threaded tube is fixedly installed on one side of the large flange, and a first pressure plate is provided at the connection between the first threaded tube and the large flange. A second large sealing gasket is covered on the first pressure plate.

[0011] The first spiral tube is connected to the main body of the pipe through a first thread, and the first and second large sealing gaskets are deformed under pressure by being screwed in through the thread to form a seal.

[0012] The small flange has a second assembly hole for bolts to pass through and connect to external pipes. A second threaded tube is fixedly installed on one side of the small flange. A second pressure plate is provided at the connection between the second threaded tube and the small flange. A second small sealing gasket is inherent on the second pressure plate.

[0013] The second spiral tube is connected to the branch tube through the second thread, and the first and second small sealing gaskets are deformed under pressure by being screwed in through the thread to form a seal.

[0014] This utility model discloses a reducing tee pipe joint structure, achieving a functional breakthrough through the integrated design of both ends of the pipe body. Symmetrically arranged first reinforcing plates are positioned on the outer sides of both ends of the pipe body. An integrally formed first reinforcing rib adjacent to the first reinforcing plate forms an annular first groove, which directly bears the locking force of the external clamp. A first limiting block is embedded in the inner wall of the pipe body as an axial positioning reference, and a first large sealing gasket covering its surface constitutes the main sealing interface. A first thread machined behind the inner wall provides a threaded connection channel. A branch pipe is fixed to the lateral branching port of the pipe body, with a second reinforcing plate positioned on its outer end. Adjacent second reinforcing ribs work together to form a second groove to accommodate clamp installation. The second limiting block on the inner wall of the branch pipe supports the first small sealing gasket, forming a branch sealing interface, and the second thread machined behind provides branch threaded connection capability. In the flange assembly, the large flange is screwed into the first thread of the pipe body via the first threaded tube. During the screwing process, the first pressure plate at the end of the first threaded tube pushes the second large sealing gasket into the pipe, causing it to deform under pressure against the first large sealing gasket on the first limiting block. Under axial pressure, the two sealing gaskets fill the microscopic gaps to form a bidirectional sealing barrier. Similarly, the small flange is screwed into the second thread of the branch pipe via the second threaded tube. The second pressure plate compresses the second small sealing gasket to conform to the first small sealing gasket, achieving branch sealing. External clamps can be directly locked into the first and second clamp slots to complete the pipe connection, or flanged connections can be achieved through the flange assembly. This structure allows a single interface to simultaneously possess the dual functions of clamp direct connection and threaded connection (including flange assembly adaptation). Users can dynamically select the connection method according to the working conditions without replacing the tee pipe body, completely solving the defect of prefabricated combined interfaces being unchangeable. Ultimately, three core effects are achieved: First, the parallel design of the slot and the thread eliminates the limitation of fixed interface functions; second, the synergistic deformation of the double sealing gaskets during thread insertion achieves higher-order sealing redundancy; and third, the mechanical transmission of the reinforcing plate and reinforcing rib suppresses fluid impact deformation, thus constructing a reconfigurable connection method, reliable sealing, and strong load-bearing capacity reducing tee pipe joint system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a structural breakdown diagram of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the pipe body in an embodiment of this utility model.

[0019] Figure 4This is a structural schematic diagram of the large flange of this utility model embodiment.

[0020] Figure 5 This is a schematic diagram of the structure of the small flange in an embodiment of this utility model.

[0021] In the diagram: 101. Pipe body; 102. First reinforcing plate; 103. First reinforcing rib; 104. First slot; 105. First limiting block; 106. First large sealing gasket; 107. First thread; 108. Branch pipe; 109. Second reinforcing plate; 110. Second reinforcing rib; 111. Second slot; 112. Second limiting block; 113. First small sealing gasket; 114. Second thread; 115. Flange assembly; 116. Large flange; 117. Small flange; 118. First assembly hole; 119. First threaded tube; 120. First pressure plate; 121. Second large sealing gasket; 122. Second assembly hole; 123. Second threaded tube; 124. Second pressure plate; 125. Second small sealing gasket. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figures 1-5 .

[0024] This utility model provides a reducing tee pipe joint structure. First reinforcing plates 102 are respectively provided on the outer sides of both ends of the pipe body 101 to enhance the structural strength of the connection. A first reinforcing rib 103 is provided on the side of the pipe body 101 adjacent to the first reinforcing plate 102, working in conjunction with the first reinforcing plate 102 to form a first retaining groove 104. This first retaining groove 104 is used to cooperate with external clamps for quick installation and fixation. First limiting blocks 105 are respectively provided on the inner walls of both ends of the pipe body 101 as positioning references for the sealing assembly. A first large sealing gasket 106 is covered on the first limiting block 105 to form the first sealing interface. First threads 107 are provided on the inner walls of both ends of the pipe body 101 adjacent to the first limiting blocks 105 for connection with a flange assembly 115 or a threaded pipe.

[0025] A branch pipe 108 is fixedly installed on the side of the main pipe 101 away from the first reinforcing plate 102 to achieve fluid diversion. A second reinforcing plate 109 is provided on the outer side of the extended end of the branch pipe 108 to enhance the strength of the branch connection point. A second reinforcing rib 110 is provided on the side of the branch pipe 108 adjacent to the second reinforcing plate 109, which cooperates with the second reinforcing plate 109 to form a second groove 111. This second groove 111 is also used for clamp fixation. A second limiting block 112 is provided on the inner wall of the extended end of the branch pipe 108 as a positioning reference for the branch seal. A first small sealing gasket 113 is covered on the second limiting block 112 to form a branch sealing interface. A second thread 114 is provided on the inner wall of the extended end of the branch pipe 108 adjacent to the second limiting block 112 for the connection of the branch pipe 108.

[0026] The flange assembly 115 includes a large flange 116 and a small flange 117, respectively corresponding to the connection of the main pipe and the branch pipe 108. The large flange 116 has a first assembly hole 118 for bolt fixing. A first threaded tube 119 is fixedly installed on one side of the large flange 116 for screwing into the pipe body 101. A first pressure plate 120 is provided at the connection between the first threaded tube 119 and the large flange 116 to transmit the clamping force. A second large sealing gasket 121 is covered on the first pressure plate 120, forming a double sealing structure with the first large sealing gasket 106. The small flange 117 has a second assembly hole 122 for fixing the branch pipe 108. A second threaded tube 123 is fixedly installed on one side of the small flange 117 for screwing into the branch pipe 108. A second pressure plate 124 is provided at the connection between the second threaded tube 123 and the small flange 117 for clamping the branch seal. A second small sealing gasket 125 is covered on the second pressure plate 124, forming a branch sealing structure with the first small sealing gasket 113.

[0027] When the first threaded tube 119 is connected to the main pipe 101 via the first thread 107, the first large sealing gasket 106 and the second large sealing gasket 121 are simultaneously deformed under pressure by the threaded insertion, achieving a reliable seal at the main pipe connection. When the second threaded tube 123 is connected to the branch pipe 108 via the second thread 114, the first small sealing gasket 113 and the second small sealing gasket 125 are deformed in tandem by the threaded insertion, ensuring the sealing performance of the branch pipe 108. When the external clamp is engaged and fixed in the first clamping groove 104 and the second clamping groove 111, the tightening force of the clamp enhances the vibration resistance of the connection. Bolts pass through the first assembly hole 118 and the second assembly hole 122 to connect to the external pipe flange, realizing the overall assembly of the system.

[0028] The main pipe 101, branch pipe 108, and flange assembly 115 work together through the above structure. The first reinforcing plate 102 and the second reinforcing plate 109 disperse external loads, the first reinforcing rib 103 and the second reinforcing rib 110 improve local stiffness, the first limiting block 105 and the second limiting block 112 ensure accurate positioning of the sealing assembly, the first slot 104 and the second slot 111 provide multiple installation options, the first large sealing gasket 106, the second large sealing gasket 121, the first small sealing gasket 113 and the second small sealing gasket 125 together construct multiple sealing defenses, and the first thread 107 and the second thread 114 achieve flexible connection, ultimately forming a reducing tee pipe joint structure with excellent sealing performance and structural reliability.

[0029] Working principle: The first thread 107 and the second thread 114 can not only be screwed onto the threaded pipe in the flange assembly 115, but also directly threaded onto an external pipe; similarly, the first groove 104 and the second groove 111 can directly fix the external pipe with clamps, or lock onto the external flange assembly 115 with a locking structure; this dual compatibility enables the tee structure formed by the pipe body 101 and the branch pipe 108 to have standardized assembly capabilities, allowing users to freely choose pure threaded connection, pure clamp connection, or composite connection scheme according to working conditions, significantly reducing the need for custom parts. Cost; When using flange assembly 115 for installation, bolts pass through the assembly hole of the large flange 116 to connect with the external pipe flange, driving the first threaded tube 119 to screw into the first thread 107 of the main pipe. The rotation of the threaded tube synchronously propels the first pressure plate 120 into the pipe interior, causing the second large sealing gasket 121 on the pressure plate to be continuously compressed, eventually completely fitting with the first large sealing gasket 106 of the first limiting block 105 on the inner wall of the main pipe; the coordinated deformation of the two sealing gaskets under axial compression completely fills the interfacial micro-gap, forming a double sealing barrier against high-pressure fluid; branch pipe 108 The system operates through the same mechanism: after the second helical tube 123 is screwed into the second thread 114 of the branch pipe 108, the second pressure plate 124 pushes the second small sealing gasket 125 to press against the first small sealing gasket 113 of the second limiting block 112, achieving a uniform sealing force distribution even in small-diameter flow channels; the structural reinforcement components play a key role in various assembly modes: the clamps apply radial constraint force to the first groove 104 of the main pipe and the second groove 111 of the branch pipe 108, and this force is dispersed and transmitted to the pipe body through the first reinforcing plate 102 and the second reinforcing plate 109, inhibiting fluid flow. The expansion and deformation caused by impact, while the first limiting block 105 and the second limiting block 112 embedded in the inner wall of the pipe simultaneously bear the reaction force of the sealing gasket, eliminates stress concentration at the root of the thread, and the final synergistic effect is that: regardless of whether the threaded pipe is directly connected, clamped or flanged, the structure can maintain ultra-high sealing performance (improved pressure resistance level) at the reducing connection; the whole system achieves the core technological breakthrough of "one structure with multiple installations, zero leakage and long-term operation" of the reducing tee structure through the assembly flexibility of threads / grooves, the double redundancy protection of sealing components and the stress optimization of reinforced components.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A reducing tee pipe joint structure, comprising a pipe body (101), characterized in that: The outer sides of both ends of the pipe body (101) are provided with first reinforcing plates (102), and the side of the pipe body (101) adjacent to the first reinforcing plates (102) is provided with first reinforcing ribs (103). A first groove (104) is formed between the first reinforcing plates (102) and the first reinforcing ribs (103) for external clamping and fixing. The inner walls of both ends of the pipe body (101) are provided with first limiting blocks (105), and the first limiting blocks (105) are covered with first large sealing gaskets (106). The inner walls of both ends of the pipe body (101) adjacent to the first limiting blocks (105) are provided with first threads (107).

2. The reducing tee pipe joint structure as described in claim 1, characterized in that: A branch pipe (108) is fixedly installed on the side of the main pipe (101) away from the first reinforcing plate (102). A second reinforcing plate (109) is provided on the outer side of the extended end of the branch pipe (108). A second reinforcing rib (110) is provided on the side of the branch pipe (108) adjacent to the second reinforcing plate (109). A second groove (111) is formed between the second reinforcing plate (109) and the second reinforcing rib (110) for external clamping and fixing.

3. The reducing tee pipe joint structure as described in claim 2, characterized in that: The inner wall of the extended end of the branch pipe (108) is provided with a second limiting block (112), and the second limiting block (112) is covered with a first small sealing gasket (113). The inner wall of the extended end of the branch pipe (108) is provided with a second thread (114) on the side adjacent to the second limiting block (112). The inner walls of the pipe body (101) and the branch pipe (108) are respectively provided with flange assemblies (115) through the first thread (107) and the second thread (114).

4. The reducing tee pipe joint structure as described in claim 3, characterized in that: The flange assembly (115) includes a large flange (116) and a small flange (117). The large flange (116) has a first assembly hole (118) for bolts to pass through and connect to the external pipe.

5. The reducing tee pipe joint structure as described in claim 4, characterized in that: A first threaded tube (119) is fixedly installed on one side of the large flange (116). A first pressure plate (120) is provided at the connection between the first threaded tube (119) and the large flange (116). A second large sealing gasket (121) is covered on the first pressure plate (120).

6. The reducing tee pipe joint structure as described in claim 5, characterized in that: The first spiral tube (119) is connected to the pipe body (101) through the first thread (107), and the first large sealing gasket (106) and the second large sealing gasket (121) are deformed under pressure by being screwed in through the thread to form a seal.

7. The reducing tee pipe joint structure as described in claim 6, characterized in that: The small flange (117) is provided with a second assembly hole (122), which is used for bolts to pass through and connect external pipes. A second threaded pipe (123) is fixedly installed on one side of the small flange (117). A second pressure plate (124) is provided at the connection between the second threaded pipe (123) and the small flange (117). A second small sealing gasket (125) is inherent on the second pressure plate (124).

8. The reducing tee pipe joint structure as described in claim 7, characterized in that: The second screw tube (123) is connected to the branch tube (108) through the second thread (114), and the first small sealing gasket (113) and the second small sealing gasket (125) are compressed and deformed to form a seal by being screwed in through the thread.

Images