Pipeline butt joint for heat supply network

Abstract

The utility model relates to the technical field of pipeline butt joint, in particular to a pipeline butt joint for a heat supply network. The pipeline butt joint for the heat supply network comprises a middle connecting pipe, a middle dividing ring is fixedly installed on the inner wall of the middle pipe section of the middle connecting pipe, locking parts are installed on the pipe sections on the two sides of the middle dividing ring, and a butt joint pipeline inserted into the middle connecting pipe is clamped and locked through the locking parts. According to the pipeline butt joint for the heat supply network, through the linkage design of the threaded sleeve and the locking arm set, the clamping arms can be driven to synchronously deflect only by rotating the threaded sleeve, instant clamping and releasing of a pipeline are achieved, the construction efficiency is remarkably improved, the threaded sleeve is allowed to be fixed through the threaded through hole of the rear connecting ring through an additional threaded rod, and the pipeline butt joint is convenient to use. Threaded sleeve retreating caused by vibration or pressure fluctuation is avoided, and the safety of long-term use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline butt joint, in particular to a pipeline butt joint for a heat supply pipe network. Background Art

[0002] In a heat supply pipe network system, the performance of a pipeline butt joint directly affects the overall sealing performance, stability and maintenance efficiency of the pipe network. In the prior art, traditional pipeline butt joints mostly adopt flange connection or welding methods, which have the problems of cumbersome installation and inconvenient disassembly. Flange connection requires multiple bolts for fixation, which is time-consuming and laborious; although the welding method has good sealing performance, it needs to be cut during disassembly, which is not conducive to the reuse of the pipeline.

[0003] Therefore, it is necessary to provide a new pipeline butt joint for a heat supply pipe network to solve the above technical problems. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a pipeline butt joint for a heat supply pipe network.

[0005] The pipeline butt joint for a heat supply pipe network provided by the utility model includes a middle joint pipe. A middle dividing ring is fixedly installed on the inner wall of the middle pipe section of the middle joint pipe, and locking components are installed on both pipe sections on both sides of the middle dividing ring. The butt joint pipeline inserted into the middle joint pipe is clamped and locked through the locking components;

[0006] The locking component includes a threaded sleeve. A plurality of annularly distributed locking arm groups are installed on the threaded sleeve. Each locking arm group includes a butting plate. A rotatable driving plate is installed at the connecting end of the butting plate. A clamping arm is rotatably connected to the connecting end of the driving plate. A rotating shaft is rotatably connected to the installation end of the clamping arm, and a downwardly bent and inclined downward portion is provided at the clamping end of the clamping arm.

[0007] Preferably, threaded sections are provided on both sides of the middle dividing ring on the middle joint pipe, and a plurality of annularly distributed and axially arranged installation cavities are provided on both sides of the middle dividing ring on the middle joint pipe. The installation cavities are located between the threaded sections and the middle dividing ring.

[0008] Preferably, the rotating shaft is fixedly installed in the installation cavity, and the rotating shaft is located on the side of the installation cavity away from the middle dividing ring.

[0009] Preferably, an installation rod is installed on the clamping arm. The connecting end of the driving plate is sleeved on the installation rod and is rotatably connected to the installation rod.

[0010] Preferably, a convex portion is fixedly fitted on the inner plate wall of the downward portion, and anti-slip lines are provided on the convex portion.

[0011] Preferably, the threaded sleeve is sleeved on the threaded section provided on the intermediate pipe and is threadedly connected to the threaded section. An installation disc is sleeved on the threaded sleeve, and a rotatable disc is installed on the installation disc. The rotatable disc is fixedly connected to the mounting end of the abutting plate in the locking arm group.

[0012] Preferably, a rear connection ring is fixedly sleeved on the tail of the threaded sleeve, and a plurality of annularly distributed threaded through holes are formed in the rear connection ring.

[0013] Preferably, silicone rubber is fixedly embedded on both side walls of the middle dividing ring.

[0014] Compared with the related art, the pipe joint for a heat supply pipe network provided by the present utility model has the following beneficial effects:

[0015] Through the linkage design of the threaded sleeve and the locking arm group, the present utility model only needs to rotate the threaded sleeve to drive the clamping arms to deflect synchronously, realizing instantaneous clamping and release of the pipe, significantly improving the construction efficiency. The threaded through holes of the rear connection ring allow the threaded sleeve to be fixed by an additional screw, avoiding the back-off of the threaded sleeve caused by vibration or pressure fluctuation, and improving the safety during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of the pipe joint for a heat supply pipe network provided by the present utility model;

[0017] Figure 2 is Figure 1 the sectional structural diagram shown;

[0018] Figure 3 is Figure 1 the structural diagram of the intermediate pipe shown;

[0019] Figure 4 is Figure 3 the sectional structural diagram of the intermediate pipe shown;

[0020] Figure 5 is Figure 3 the structural diagram of the locking component shown;

[0021] Figure 6 is Figure 5 the structural diagram of the clamping arm in the locking component shown.

[0022] Reference numerals in the figures: 1, intermediate pipe; 1a, installation cavity; 11, middle dividing ring; 12, threaded section; 2, locking component; 21, threaded sleeve; 22, installation disc; 23, rotatable disc; 24, locking arm group; 241, abutting plate; 242, driving plate; 243, clamping arm; 2431, downward inclined part; 2432, protruding part; 244, rotating shaft; 245, installation rod; 25, rear connection ring; 25a, threaded through hole; 3, silicone rubber. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0025] Please refer to Figures 1 to 6 , a pipe joint for a heat supply pipe network provided by an embodiment of the present utility model, the pipe joint for a heat supply pipe network includes a middle connecting pipe 1 and a locking component 2.

[0026] In an embodiment of the present utility model, please refer to Figures 1 to 6 , a middle dividing ring 11 is fixedly installed on the inner wall of the middle pipe section of the middle connecting pipe 1. Threaded sections 12 are provided on both sides of the middle dividing ring 11 on the middle connecting pipe 1, and a plurality of axially arranged installation cavities 1a distributed in a ring shape are formed on both sides of the middle dividing ring 11 on the middle connecting pipe 1. The installation cavities 1a are located between the threaded sections 12 and the middle dividing ring 11;

[0027] And locking components 2 are installed on both side pipe sections of the middle dividing ring 11. The butt joint pipe inserted into the middle connecting pipe 1 is clamped and locked through the locking components 2. The locking components 2 include a threaded sleeve 21. The threaded sleeve 21 is sleeved on the threaded section 12 provided on the middle connecting pipe 1 and is in threaded connection with the threaded section 12. A plurality of groups of locking arm groups 24 distributed in a ring shape are installed on the threaded sleeve 21. Each locking arm group 24 includes a butting plate 241. A rotatable drive plate 242 is installed at the connecting end of the butting plate 241, and a clamping arm 243 is rotatably connected to the connecting end of the drive plate 242. Specifically, an installation rod 245 is installed on the clamping arm 243. The connecting end of the drive plate 242 is sleeved on the installation rod 245 and is rotatably connected to the installation rod 245. A rotatable rotating shaft 244 is installed at the installation end of the clamping arm 243. The rotating shaft 244 is fixedly installed in the installation cavity 1a, and the rotating shaft 244 is located on the side of the installation cavity 1a away from the middle dividing ring 11, and a downwardly bent and inclined downward portion 2431 is provided at the clamping end of the clamping arm 243.

[0028] It should be noted that when the pipes of two heat supply pipe networks are butt - jointed, the two pipes are respectively inserted into the middle connecting pipe 1 from both ends of the middle connecting pipe 1 and abutted against the middle - dividing ring 11. Subsequently, the threaded sleeve 21 is rotated to drive the threaded sleeve 21 to screw into the direction of the middle - dividing ring 11 along the threaded section 12. Therefore, when the abutting plate 241 moves towards the middle - dividing ring 11, it pushes the driving - rotating plate 242, so that the driving - rotating plate 242 presses down on the clamping arm 243, causing the clamping arm 243 to deflect downward around the rotating shaft 244. Thus, the downward - inclined part 2431 of the clamping arm 243 is abutted against the outer wall of the pipe inserted into the middle connecting pipe 1, realizing the rapid installation and butt - joint of the heat supply pipe network pipes;

[0029] During subsequent disassembly, the threaded sleeve 21 is reversed to pull the clamping arm 243 outwards through the driving - rotating plate 242, so that the downward - inclined part 2431 on the clamping arm 243 no longer abuts against the outer wall of the pipe, thus canceling the locking force on the pipe and facilitating the quick outward pulling of the pipe. Therefore,

[0030] Through the linkage design of the threaded sleeve 21 and the locking arm group 24 in this application, only by rotating the threaded sleeve 21 can the clamping arm 243 be driven to deflect synchronously, realizing the instantaneous clamping and release of the pipe, significantly improving the construction efficiency. And the threaded through - hole 25a of the rear - connecting ring 25 allows the threaded sleeve 21 to be fixed by an additional screw rod, avoiding the back - off of the threaded sleeve 21 caused by vibration or pressure fluctuation, and enhancing the safety during long - term use.

[0031] Furthermore, an installation disk 22 is sleeved on the threaded sleeve 21, and a rotatably - connected rotating disk 23 is installed on the installation disk 22, and the installation end of the rotating disk 23 is fixedly connected to the abutting plate 241 in the locking arm group 24. Since the locking arm group 24 is arranged on the rotating disk 23, the threaded sleeve 21 is not affected by the locking arm group 24 when screwing into the threaded section 12.

[0032] Among them, in order to facilitate the rotation of the threaded sleeve 21, a hexagonal or gear structure can also be designed on the outer edge of the threaded sleeve 21 (designed by those skilled in the art according to the specific pipe size, and this scheme will not be specifically described in detail), which is adapted to a wrench or power tool to reduce the manual operation intensity.

[0033] Furthermore, a convex part 2432 is fixedly embedded in the inner plate wall of the downward - inclined part 2431, and anti - slip lines are arranged on the convex part 2432. In order to improve the fixing effect on the pipe, grooves matching the convex part 2432 can be opened on the outer pipe wall of the inserted end of the heat supply pipe network pipe, thus greatly improving the locking effect of the clamping arm 243 on the pipe.

[0034] Among them, in order to solve the problem that the frequent force on the clamping arm 243 is likely to cause wear of the rotating shaft 244 or the driving - rotating plate 242, affecting the service life, the locking arm assembly 243 is made of high - strength alloy steel with surface carburizing treatment or inlaid ceramic coating to improve the wear resistance and anti - fatigue performance.

[0035] Furthermore, a rear connection ring 25 is fixedly sleeved on the tail of the threaded sleeve 21, and a plurality of annularly distributed threaded through holes 25a are formed in the rear connection ring 25. After the clamping arm 243 locks the pipeline, in order to prevent the threaded sleeve 21 from slipping sideways on the threaded section 12, a screw can be inserted into the threaded through hole 25a to further lock the threaded sleeve 21. The threaded section 12 is subjected to surface carburizing treatment or inlaid with a ceramic coating, so as to improve its strength and reduce the wear of the screw on the threaded section 12.

[0036] Furthermore, silicone rubbers 3 are fixedly fitted on both side walls of the middle dividing ring 11. The designed silicone rubbers 3 are elastic materials, which can automatically compensate for dimensional tolerances during pipeline docking, absorb thermal expansion and contraction deformation at the same time, and enhance the sealing reliability.

[0037] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A pipe joint for a heat supply pipeline network, characterized in that, It comprises a central connecting pipe (1), a central dividing ring (11) is fixedly mounted on the inner wall of the central pipe section of the central connecting pipe (1), and locking components (2) are mounted on the pipe sections on both sides of the central dividing ring (11), and the butt-jointed pipe inserted into the central connecting pipe (1) is clamped and locked by the locking components (2); The locking component (2) comprises a threaded sleeve (21), a plurality of locking arm groups (24) arranged in an annular manner are mounted on the threaded sleeve (21), and the locking arm group (24) comprises an abutment plate (241), a driving plate (242) rotatably connected to the connecting end of the abutment plate (241) is mounted, and a clamping arm (243) is rotatably connected to the connecting end of the driving plate (242), a rotating shaft (244) rotatably connected to the mounting end of the clamping arm (243), and a downwardly bent and inclined downwardly inclined portion (2431) is provided at the clamping end of the clamping arm (243).

2. The pipe joint for a heat supply pipe network according to claim 1, wherein, The center connecting pipes (1) on both sides of the center dividing ring (11) are provided with threaded sections (12), and the center connecting pipes (1) on both sides of the center dividing ring (11) are provided with a plurality of annularly distributed and axially arranged installation cavities (1a), wherein the installation cavities (1a) are located between the threaded sections (12) and the center dividing ring (11).

3. The pipe joint for a heat supply pipeline according to claim 2, characterized in that, The rotating shaft (244) is fixedly mounted in the installation cavity (1a), and the rotating shaft (244) is located on a side of the installation cavity (1a) away from the center dividing ring (11).

4. The pipe joint for a heat supply pipeline according to claim 3, characterized in that, A mounting rod (245) is mounted on the clamping arm (243), and a connecting end of the driving plate (242) is sleeved on the mounting rod (245) and is rotatably connected to the mounting rod (245).

5. The pipe joint for a heat supply pipe network according to claim 4, characterized in that, A raised portion (2432) is fixedly embedded in the inner plate wall of the downwardly inclined portion (2431), and an anti-slip pattern is provided on the raised portion (2432).

6. The pipe joint for a heat supply pipe network according to claim 1, characterized in that, The threaded sleeve (21) is sleeved on a threaded section (12) provided on the central connecting pipe (1) and is threadedly connected to the threaded section (12), and a mounting plate (22) is sleeved on the threaded sleeve (21), a rotating plate (23) rotatably connected is mounted on the mounting plate (22), and the rotating plate (23) is fixedly connected to the mounting end of the abutment plate (241) in the locking arm assembly (24).

7. The pipe joint for a heat supply pipe network according to claim 1, characterized in that, The rear fixing sleeve of the threaded sleeve (21) is provided with a rear connecting ring (25), and the rear connecting ring (25) is provided with a plurality of threaded through holes (25a) distributed in an annular manner.

8. The pipe joint for a heat supply pipeline according to claim 1, characterized in that, Silicon rubber (3) is fixedly embedded on both side walls of the center dividing ring (11).

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