Method for assembling a universal rotating sphere with an axially telescopic tube

Abstract

The present application relates to the technical field of pipeline connection, in particular to a method for assembling a universal rotating ball and an axially telescopic pipe, which is implemented based on an assembled universal rotating axially telescopic ball connection shock isolation flexible pipeline and based on the assembled universal rotating ball and axially telescopic pipe connection technology, wherein the pipeline comprises a pipe (an outer pipe and an inner pipe), a ball (including a ball head, a shell, and an upper cover), an inner side wall of the outer pipe is slidably connected with an outer side wall of the inner pipe (including an "O" type sealing material), the pipe (the outer pipe and the inner pipe) is connected with the ball on both sides, and the ball and the pipe (the outer pipe and the inner pipe) are connected by means such as but not limited to bonding, so as to meet the requirements of universal rotation, lateral deformation, and axial deformation.

Description

Technical Field

[0001] This invention relates to the field of pipe connection technology, specifically to a method for assembling a spherical object that rotates in all directions with an axially expandable pipe. Background Technology

[0002] During pipeline system installation, traditional assembly methods cannot meet the displacement requirements during earthquakes for flexible pipelines that require omnidirectional rotation, axial expansion and contraction, and seismic isolation.

[0003] Vibration isolation performance is difficult to guarantee: Traditional assembly methods cannot meet the vibration isolation requirements under complex working conditions. Therefore, an assembly method of a spherical body with universal rotation and a tube with axial expansion and contraction is proposed. Summary of the Invention

[0004] In view of this, the present invention provides a method for assembling a sphere that can rotate in all directions and a tube that can extend and retract axially, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0005] The technical solution of this invention is implemented as follows: A method for assembling a spherical body with an axially expandable tube, based on the connection of an assembled spherical body with an axially expandable tube to a vibration-isolated flexible pipe, and based on the connection technology between the assembled spherical body and the axially expandable tube, wherein the pipe includes a tube body (an outer tube and an inner tube), a sphere (including a ball head, a shell, and an upper pressure cap), the inner wall of the outer tube and the outer wall of the inner tube are slidably connected (including "O"-ring sealing material), and spheres are connected to both sides of the tube body (the outer tube and the inner tube). The sphere and the tube body (the outer tube and the inner tube) are connected by, but not limited to, adhesive bonding, etc., to meet the requirements of spherical rotation, lateral, and axial deformation, including the following steps:

[0006] S1: Assembly pre-processing and component inspection, cleaning component contact surfaces and checking fit accuracy;

[0007] S2: Positioning and assembling the shell and the ball head, initial docking and pre-fixing;

[0008] S3: Pre-adjustment assembly of the ball head and the housing angle, 360° rotation adjustment to the target angle;

[0009] S4: Axial expansion and contraction adjustment assembly, adjusting the sliding stroke of the inner tube and the outer tube of the pipe body;

[0010] S5: Sealing and locking with integrated fixation, using a screw-on upper cover to achieve weld-free sealing and fixation;

[0011] S6: Post-assembly functional and performance testing to verify sealing, rotation, expansion and contraction and vibration isolation performance.

[0012] More preferably, in step S1, the sliding contact surfaces of the outer tube and the inner tube of the tube body, the spherical surface of the ball head, and the inner cavity of the shell are cleaned to remove oil and rust; and it is checked to ensure that the inner tube of the tube body slides smoothly along the outer tube of the tube body and that the ball head can rotate flexibly within the shell.

[0013] More preferably, in step S2, when the shell is connected to the base component, a sealing gasket is placed and the upper pressure cap (including internal and external rotation types) is initially tightened, leaving an adjustment gap of 0.5-1mm.

[0014] In a further preferred embodiment, in step S3, the ball head is inserted into the inner cavity of the shell until the spherical surface is completely fitted, and 360° angle adjustment is achieved by rotating the outer tube or the inner tube, and the relative position is marked to avoid displacement.

[0015] More preferably, in step S4, the axial extension range is 50-1000mm, and the inner tube and outer tube are kept coaxial during the adjustment process to avoid tilting and jamming.

[0016] In a further preferred embodiment, in step S5, a double seal of "sealing gasket + sealing grease" is used for sealing and fixing, and the upper pressure cap is fitted onto the middle of the contact surface between the ball head and the shell and locked.

[0017] More preferably, in step S6, the sealing test is performed by holding the medium at 0.5-2.5MPa for 30 minutes; no leakage is considered acceptable. The functional test verifies the smoothness of 360° rotation and axial extension. The vibration isolation performance verification requires the vibration attenuation rate to meet current specifications and standards.

[0018] A further preferred embodiment includes step S7: during later maintenance, the components can be separated by loosening the pressure caps on both sides of the spheres, and then reinstalled according to steps S1-S6, without the need to cut the pipes.

[0019] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions:

[0020] I. This invention adopts a step-by-step assembly process that is "welding-free and glue-free". It does not require professional welding technology or glue curing time. Only basic tools are needed to complete the assembly. The construction cycle is shortened by more than 70% compared with traditional methods, thus lowering the construction threshold.

[0021] Second, during the assembly process of this invention, the relative rotation between the ball head and the shell can compensate for the installation angle deviation in 360°; through the sliding adjustment of the inner tube and the outer tube of the pipe body, the axial expansion and contraction can be flexibly adapted, effectively avoiding uneven stress on the pipe caused by assembly errors, and improving the assembly accuracy to ±0.5mm.

[0022] Third, this invention is applicable to flexible pipes with vibration isolation connected by universal rotating telescopic spheres of different specifications. It can adapt to various complex working conditions such as equipment vibration, building settlement, and temperature difference deformation, and is compatible with pipe installation needs in multiple fields such as industry and construction.

[0023] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural diagram of the present invention;

[0026] Figure 2 This is a structural diagram of another embodiment of the present invention.

[0027] Reference numerals: 1. Outer tube 1; 2. Inner tube 2; 3. Ball head; 4. Shell; 5. Upper pressure cap. Detailed Implementation

[0028] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0030] like Figure 1-2 As shown, this embodiment of the invention provides an assembly method for a spherical rotating sphere and an axially telescopic pipe. It is implemented based on the connection of an assembled spherical rotating axially telescopic sphere to a vibration-isolated flexible pipe, and based on the connection technology between the assembled spherical rotating sphere and the axially telescopic pipe. The pipe includes a pipe body (outer pipe 1 and inner pipe 2) and a sphere (including a ball head 3, a shell 4, and an upper pressure cap 5). The inner wall of the outer pipe 1 is slidably connected to the outer wall of the inner pipe 2 (including "O"-ring sealing material). Spheres are connected to both sides of the pipe body (outer pipe 1 and inner pipe 2). The spheres and pipe body (outer pipe 1 and inner pipe 2) are connected by, but not limited to, adhesive bonding, etc., to meet the requirements of spherical rotation, lateral, and axial deformation. The method includes the following steps:

[0031] S1: Assembly pre-processing and component inspection, cleaning component contact surfaces and checking fit accuracy;

[0032] S2: Positioning and assembling the shell and the ball head, initial docking and pre-fixing;

[0033] S3: Pre-adjustment assembly of the ball head and the housing angle, 360° rotation adjustment to the target angle;

[0034] S4: Axial expansion and contraction adaptation assembly, adjusting the sliding stroke of the inner tube 2 and the outer tube 1 of the tube body;

[0035] S5: Sealing and locking with integrated fixation, using a screw-on upper cover to achieve weld-free sealing and fixation;

[0036] S6: Post-assembly functional and performance testing to verify sealing, rotation, expansion and contraction and vibration isolation performance.

[0037] In one embodiment, in step S1, the sliding contact surfaces of the outer tube 1 and the inner tube 2, the spherical surface of the ball head 3, and the inner cavity of the shell 4 are cleaned to remove oil and rust; and the inner tube 2 is checked to ensure that it slides smoothly along the outer tube 1 and that the ball head 3 can rotate flexibly within the shell 4.

[0038] In one embodiment, in step S2, when the housing 4 is docked with the base component, a sealing gasket is placed and the upper pressure cap (including internal and external rotation types) is initially tightened, leaving an adjustment gap of 0.5-1mm.

[0039] In one embodiment, in step S3, the ball head 3 is inserted into the inner cavity of the housing 4 until the spherical surface is completely fitted, and 360° angle adjustment is achieved by rotating the outer tube 1 or the inner tube 2, and the relative position is marked to avoid displacement.

[0040] In one embodiment, in step S4, the axial extension range is 50-1000mm. During the adjustment process, the inner tube 2 and the outer tube 1 are kept coaxial to avoid tilting and jamming.

[0041] In one embodiment, in step S5, a double seal of "sealing gasket + sealing grease" is used for sealing and fixing, and the upper pressure cover 5 is fitted onto the middle of the contact surface between the ball head 3 and the housing 4 and locked.

[0042] In one embodiment, in step S6, the sealing test is performed by holding the medium at 0.5-2.5 MPa for 30 minutes; no leakage is considered acceptable. The functional test verifies the smoothness of 360° rotation and axial extension. The vibration isolation performance verification requires the vibration attenuation rate to meet current specifications and standards.

[0043] In one embodiment, step S7 is also included: during later maintenance, the components can be separated by loosening the pressure caps 5 on both sides of the ball head 3, and reinstalled according to steps S1-S6, without cutting the pipe.

[0044] In operation, this invention involves: preparing the outer tube 1, inner tube 2, ball head 3, shell 4, and matching standardized upper pressure cap 3, sealing gaskets, and other accessories to be assembled; ensuring that all components are free from damage or deformation, and that the sealing gaskets are free from aging or cracking; cleaning the sliding contact surfaces of the outer tube 1 and inner tube 2, the spherical surface of the ball head 3, and the inner cavity of the shell 4, removing oil, rust, impurities, and other attachments that may affect assembly accuracy and sealing performance; checking the sliding fit clearance between the outer tube 1 and inner tube 2 to ensure that the inner tube 2 can slide smoothly along the axial direction of the outer tube 1 without jamming; and checking the fit accuracy between the ball head 3 and the shell 4 to ensure that the ball head 3 can rotate flexibly within the shell 4. Based on the installation requirements, determine the target angle and axial length of the pipe connection. Pre-fix the housing 4 to the foundation components by initially tightening the upper pressure cap 5 (internal and external rotation type), leaving an adjustment gap of 0.5-1mm. Align the ball heads 3 at both ends of the outer pipe 1 and the inner pipe 2 with the corresponding inner cavities of the housing 4, and slowly insert them until the spherical surface of the ball head 3 is completely flush with the inner cavity of the housing 4, ensuring consistent insertion depth and no deviation. Depending on the on-site installation angle deviation and equipment layout requirements, rotate the outer pipe 1 or the inner pipe 2, causing the ball head 3 to rotate 360° within the housing 4 for adjustment until the overall pipe angle matches the target installation angle. To ensure consistency, mark the relative positions of the ball head 3 and the shell 4 to avoid subsequent adjustment deviations. S4: Axial expansion and contraction amount adaptation assembly. Based on the vibration displacement, adjust the sliding stroke of the inner tube 2 within the outer tube 1 to ensure the overall pipe length matches the installation spacing, ensuring the axial expansion and contraction amount meets the preset requirements. The expansion and contraction range is 50-1000mm, adapted according to pipe specifications. During the adjustment process, maintain the coaxiality of the inner tube 2 and the outer tube 1 to avoid tilting or jamming during sliding, ensuring smooth axial expansion and contraction. After adjustment, use temporary fasteners to limit the position of the inner tube 2, remove the shell 4 and ball head 3, and use the upper pressure cap 5 to screw-install the inner spiral type and... The external rotation type ensures uniform pressure on the sealing gasket, achieving a leak-free seal at the interface. A standardized spiral installation is fitted at the connection between the ball head 3 and the housing 4. The position of the upper pressure cap 5 is adjusted to the center of the contact surface between the ball head 3 and the housing 4. The upper pressure cap 5 is then tightened evenly, forming a ring-like or internally rotating pressure fixation on the ball head 3. This ensures the ball head 3 can rotate freely while preventing axial movement. The temporary fixing parts of the inner pipe 2 are removed, and the pipe angle and axial expansion / contraction are checked again. After confirming that everything is correct, the final locking is completed. The entire assembly process requires no welding and no waiting for the sealant to cure. Sealing test: A pressure test or airtightness test is conducted by introducing 0.5-2... into the pipe 1.A 5MPa pressure medium was applied and held for 30 minutes. No leakage or pressure drop was observed at the joints, confirming a satisfactory seal. The pipe was manually rotated to verify the flexibility of the ball head 3 within the casing 4, ensuring no jamming or abnormal noise. Both ends of the pipe were pulled to verify the axial expansion and contraction function of the inner pipe 2 along the outer pipe 1; smooth expansion and contraction were confirmed. Associated equipment was activated, and vibration sensors were used to detect the vibration transmission at the pipe connections, ensuring the vibration attenuation rate met current specifications and standards, satisfying vibration isolation requirements. After passing the tests, the assembly site was cleaned, completing the assembly of the entire piping system.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An assembly method for a spherical rotating ball and an axially telescopic pipe, implemented based on the assembly of a spherical rotating axially telescopic ball connected to a vibration-isolated flexible pipe, and implemented based on the connection technology of an assembly of a spherical rotating ball and an axially telescopic pipe, wherein the pipe includes a pipe body (an outer pipe (1) and an inner pipe (2), a ball (including a ball head (3), a shell (4), and an upper pressure cap (5)), wherein the inner wall of the outer pipe (1) is slidably connected to the outer wall of the inner pipe (2) (including "O" type sealing material), and the spheres are connected to both sides of the pipe body (the outer pipe (1) and the inner pipe (2)), and the spheres and the pipe body (the outer pipe (1) and the inner pipe (2)) are connected by, but not limited to, adhesive bonding, etc., to meet the requirements of spherical rotation, lateral and axial deformation, characterized in that, Includes the following steps: S1: Assembly pre-processing and component inspection, cleaning component contact surfaces and checking fit accuracy; S2: Positioning and assembling the shell and the ball head, initial docking and pre-fixing; S3: Pre-adjustment assembly of the ball head and the housing angle, 360° rotation adjustment to the target angle; S4: Axial expansion and contraction adaptation assembly, adjust the sliding stroke of the inner tube (2) and the outer tube (1) of the tube body; S5: Sealing and locking with integrated fixation, using a screw-on upper cover to achieve weld-free sealing and fixation; S6: Post-assembly functional and performance testing to verify sealing, rotation, expansion and contraction and vibration isolation performance.

2. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: In step S1, the sliding contact surfaces of the outer tube (1) and the inner tube (2), the spherical surface of the ball head (3) and the inner cavity of the shell (4) are cleaned to remove oil stains and rust; check to ensure that the inner tube 2 slides smoothly along the outer tube 1 and that the ball head (3) can rotate flexibly inside the shell (4).

3. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: In step S2, when the shell (4) is connected to the base component, a sealing gasket is placed and the upper pressure cover (including internal and external rotation types) is initially tightened, leaving an adjustment gap of 0.5-1mm.

4. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: In step S3, the ball head (3) is inserted into the inner cavity of the shell (4) until the spherical surface is completely fitted. The 360° angle adjustment is achieved by rotating the outer tube (1) or the inner tube (2) of the tube, and the relative position is marked to avoid displacement.

5. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: In step S4, the axial extension range is 50-1000mm. During the adjustment process, the inner tube (2) and the outer tube (1) are kept coaxial to avoid tilting and jamming.

6. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: In step S5, a double seal of "sealing gasket + sealing grease" is used for sealing and fixing. The upper pressure cap (5) is fitted onto the middle of the contact surface between the ball head (3) and the shell (4) and locked.

7. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: In step S6, the sealing test is performed by holding the medium at 0.5-2.5MPa for 30 minutes; no leakage is considered acceptable. The functional test verifies the smoothness of 360° rotation and axial extension. The vibration attenuation rate must meet current specifications and standards for the verification of seismic isolation performance.

8. The assembly method of the omnidirectional rotating sphere and the axially telescopic tube according to claim 1, characterized in that: It also includes step S7: During later maintenance, the components can be separated by loosening the pressure caps (5) on both sides of the ball (3) and reinstalled according to steps S1-S6 without cutting the pipe.

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