A large-diameter pipe rack quick-release connector

Abstract

The present invention discloses a large-diameter pipe rack quick-release connector, comprising a connector body, a sealing structure, and a rack sleeve. The connector body interface end is provided with a plurality of tooth seat structures, and one axial side of the tooth seat structure is provided with a locking rack; the rack sleeve is provided on the pipe, and the rack sleeve is provided with a plurality of plug-in blocks, and the plug-in blocks are provided with an insertion rack adapted to the locking rack. An elastic pressure piece is provided between the rack sleeve and the plug-in block, and when inserted, the elastic pressure piece causes the insertion rack to engage with the locking rack. The large-diameter pipe rack quick-release connector provided by the present invention adopts a one-way automatic meshing and tightening design of the rack, is easy to install, and automatically locks, effectively reducing the operation time and difficulty of on-site construction; the seal adopts a compression-type seal, and the pipeline has good sealing performance and can withstand higher pressure; the overall structure is compact and the performance is stable, which quickly improves on-site operation efficiency.

Description

Technical Field

[0001] The invention relates to a pipeline quick-install joint, in particular to a large-diameter pipeline rack quick-install joint. Background Art

[0002] Currently, there are several ways to connect large-diameter pipes:

[0003] Butt-welding pipe connections are commonly used for metal pipes with a nominal size of DN 125 or greater. The butt-welded pipe ends are rounded to ensure they are vertical, flat, and free of cracks. Bevels are then beveled at the weld, and the two pipes are aligned to prevent axial misalignment. The welds are then symmetrically welded, followed by girth welding. Welding strictly adheres to the welding construction requirements of the standard. After completion, the pipes are polished. Direct welding eliminates the need for intermediate joints, resulting in low cost and stable performance. However, this structure cannot be disassembled or replaced, requiring high welding process requirements and making the operation difficult.

[0004] The flange welding pipeline connection includes a flange upper cover, flange lower cover, flange gasket, and bolt kit. The locking flange is welded to the pipe end, ensuring it is vertical, flat, and free of cracks. Symmetrical welding is performed first, followed by girth welding. Welding is rigorous and polished after completion. This process must comply with the national acceptance standard, "Technical Regulations for Ultrasonic Testing of Pipeline Welded Joints." The two pipes with welded locking flanges are connected through the bolt holes provided in the flanges, tightening the flange gaskets. This provides stable performance, and the installed pipes can be disassembled. However, this structure places high demands on the flange welding process, requiring seamless welding, and the butt joints require multiple bolts for tensioning.

[0005] The grooved clamp pipe connection consists of an upper clamp, a lower clamp, a saddle gasket, a bolt kit, and grooved pipes. The upper and lower clamps have inner flanges at both ends that fully enclose and secure the grooves of the two pipes. The center is recessed to enclose and compress the saddle gasket. The upper and lower clamps are connected and tightened using a bolt kit. This provides stable performance and allows for easy disassembly of the installed pipes. However, this structure requires multiple bolts to tighten the clamps, making on-site installation cumbersome and inefficient.

[0006] Therefore, how to solve the above problems has become an urgent problem to be solved. Summary of the Invention

[0007] To address the above technical issues, the present invention provides a large-diameter pipe rack quick-release connector. This connector utilizes a one-way, automatic meshing and tightening design for the rack, facilitating easy installation and automatic locking, effectively reducing on-site construction time and difficulty. During routine pipeline construction changes, simply remove the headless screw and use a tool to rotate the rack sleeve to disengage the connector's locking rack, enabling rapid installation and removal. This connector features a compact structure, stable performance, and rapidly improves on-site operation efficiency.

[0008] To achieve the above object, the technical solution of the present invention is:

[0009] A large-diameter pipe rack quick-connect connector comprises a connector body, a sealing structure, and a rack sleeve. The connector body's interface is equipped with several tooth holders, one axial side of which is provided with a locking rack. The rack sleeve is mounted on the pipe and equipped with several plug-in blocks, each of which is equipped with an insert rack that matches the locking rack. A spring-loaded clamp is installed between the rack sleeve and the plug-in blocks. During insertion, the spring-loaded clamp forces the insert rack to engage with the locking rack. The design features one-way automatic meshing and tightening of the rack, facilitating easy installation and automatic locking, effectively reducing the time and difficulty of on-site construction.

[0010] The connector body is further provided with a rack stamping area, and the tooth seat structure is located in this rack stamping area. The tooth seat structure has a radial inward concave or radial outward convex side, and the radial inward concave or radial outward convex side has a locking rack. A plurality of radial inward concave or radial outward convex portions are formed at intervals in the rack stamping area of ​​the connector body, and the locking rack is punched out of the radial inward concave or radial outward convex portion, which is simple to manufacture and convenient to use. The rack is directly stamped out of the connector body, ensuring locking strength and allowing the connector to withstand greater pull-out forces.

[0011] The connector body interface is further provided with a main body rack sleeve, which is fitted onto the connector body interface, and the tooth seat structure is located on the main body rack sleeve. The main body rack sleeve can be rotatably fitted onto the connector body interface or directly welded to the connector body interface. Various installation and fixing methods are available, and the appropriate fixing method can be adopted according to different actual needs.

[0012] Furthermore, the main rack sleeve is formed by connecting two identical semicircular sleeves. According to different needs, the main rack sleeve is made into two identical semicircular sleeves connected to form a sleeve assembly. The main rack sleeve has various structural forms, which is convenient for on-site construction and operation.

[0013] Furthermore, each interface end of the connector body is provided with a compression seal. The sealing structure is fitted onto the inner wall of the compression seal, creating a seal between the sealing structure, the inner wall of the compression seal, and the outer circumference of the pipe. The dedicated compression seal at the interface end of the connector body facilitates the positioning and installation of the sealing structure, facilitating maintenance and use of the sealing structure.

[0014] The sealing structure further includes a compression seal and a top pressure ring. The compression seal is provided with a deformation groove and a compression slope, and the top pressure ring is provided with a pushing slope. When the pipe is inserted into the interface end of the joint body, the rack sleeve pushes the top pressure ring, and the pushing slope is in close contact with the compression slope on the compression seal. The compression seal radially contracts and squeezes the outer circumference of the pipe to create a seal. When the rack locking structure and the pipe are coaxially inserted into the interface end of the joint body, the rack sleeve pushes the top pressure ring, and the pushing slope is in close contact with the compression slope on the compression seal, forcing the compression seal to radially contract and squeeze the outer circumference of the pipe to create a seal. The compression-type seal is used, and the pipeline has good sealing performance and can withstand higher pressures. The compact structure and stable performance quickly improve on-site operation efficiency.

[0015] Furthermore, each interface end of the joint body is provided with a load socket, and the pipe inserted into the load socket abuts against the step on the load socket. Each interface end of the joint body is provided with a load socket, and the pipe is coaxially inserted into the joint body and fits against the inner wall of the load socket until the pipe and the step on the load socket abut against each other, ensuring that the pipe and the joint end are coaxial and can withstand the gravity of the pipe body itself and the fluid inside the pipe.

[0016] Furthermore, a bushing is provided inside the pipe interface end, wherein the bushing has a flange edge with the same diameter as the pipe and contacts the pipe opening, thereby enhancing the bearing strength of the joint body and the pipe.

[0017] The rack locking structure further includes a welded sleeve for positioning the rack sleeve, which is welded to the pipe interface end. The rack sleeve is sleeved on the outer surface of the welded sleeve. The welded sleeve serves to position the rack sleeve on the pipe and to increase the strength of the pipe connection.

[0018] Further, the pipe interface end is provided with an outer convex ring for positioning the rack sleeve when locking. This embodiment can be used for thin-walled pipes, and the rack sleeve can be positioned and fixed in a manner such as a convex ring, a flange, or a ridge, which is simple and convenient to manufacture.

[0019] The spring-loaded compression element is a stainless steel spring, located on one side of the plug-in block, opposite the insertion rack. During installation, as the pipe is pushed into the connector body, the insertion rack on the rack sleeve continuously engages and tightens with the locking rack on the rack stamping position. The stainless steel spring on the rack sleeve produces a continuous clicking sound as the pipe coaxially pushes into the connector body, with each tooth advancing.

[0020] Further, a positioning convex ring is set on the welded pipe sleeve, and a rotating convex ring that matches the positioning convex ring is provided on the rack sleeve, and the rotating convex ring is sleeved on the positioning convex ring; positioning screw holes are set on the front and rear surfaces of each interface end of the joint body, and a positioning circular hole is provided on the plug-in block. After the locking rack and the inserted rack are engaged and tightened, the headless screw passes through the positioning circular hole and is locked on the positioning screw hole to position the rack sleeve on the joint body. After the rack is fully engaged and tightened, the headless screw passes through the positioning screw hole on the joint body and the positioning circular hole on the rack sleeve to ensure that the engaged teeth will not disengage. In daily pipeline construction changes, you only need to unscrew the headless screw, use a tool to rotate the rack sleeve, and disengage it from the locking rack to disassemble the pipeline, achieving quick disassembly.

[0021] Furthermore, the rack sleeve is provided with a sleeve rib which is pressed against one end of the welding sleeve. The welding sleeve at this end is provided with a rotation notch. A rotation tool hole is provided on the rack sleeve at a position corresponding to the rotation notch.

[0022] Furthermore, a flange is provided at one end of the main rack sleeve, a U-shaped limiting hole is provided on one side of the flange, a locking rack is provided at the other end of the main rack sleeve, and a U-shaped spring is provided in the flange, so that the main rack sleeve rotates within the flange range; a spring retaining edge is provided on the joint body, passing through the limiting hole, and one side of the spring retaining edge presses against the U-shaped spring, and the U-shaped spring is in a compressed state so that the other side of the spring retaining edge is close to the limiting hole; a disconnecting notch is provided on the rack sleeve, and the disconnecting notch is provided with a concave side surface;

[0023] The elastic compression member includes a blocking block and a blocking spring. After installation, the blocking block is inserted into the disconnected notch. The blocking block is provided with a blocking spring that snaps into the side recess and secures it. The blocking block is secured to the pipe through a blocking hole. A pressing filler block snaps into the surface recess and the pipe recess, pressing the rack sleeve against the pipe. The main rack sleeve is positioned and secured by the pressing filler and blocking blocks, eliminating the need for welding the sleeve to the pipe. The provision of the pressing filler block enhances the clamping strength.

[0024] Furthermore, a plurality of axial protrusions are provided on the cylindrical surface at one end of the main rack sleeve, and a tooth seat structure is provided inside the axial protrusions. The two axial sides of the tooth seat structure are respectively provided with locking racks, namely movable lock tooth 1 and movable lock tooth 2. The tooth seat structure also includes a lock tooth spring and a lock tooth pin. The tooth surfaces of movable lock tooth 1 and movable lock tooth 2 are arranged outwardly relative to each other and connected by a lock tooth pin. The lock tooth spring is placed between movable lock tooth 1 and movable lock tooth 2. The movable lock tooth 1 and movable lock tooth 2 elastically expand and contract along the lock tooth pin. The tooth seat structure is fixed in the axial protrusions by the lock tooth pin. The locking rack is not directly stamped out on the joint body, but is installed in the axial protrusions on the cylindrical surface of the main rack sleeve through a movable lock tooth kit, which is suitable for different application requirements.

[0025] Furthermore, the connector body is equipped with a concave ring and several O-ring grooves. The main rack sleeve fits over the concave ring, and the sealing structure includes several O-rings, which fit into the O-ring grooves on the connector body. The O-rings form a squeeze seal between the connector body and the inner wall of the pipe. During installation, rotate the main rack sleeve to the appropriate angle, coaxially insert the rack locking structure into the connector body, and tighten the racks until all the racks are engaged.

[0026] Furthermore, the main body rack sleeve and the rack sleeve are arranged in a swapped position. The swapped structure can achieve the same function, achieve the same technical effect, and meet different application requirements.

[0027] The locking rack is further replaced by a buckle hole, which is arranged on the concave side of the connector body and engages with the inserted rack. The connection between the inserted rack and the buckle hole is simple in structure and easy to manufacture.

[0028] Compared with the prior art, the present invention has the following technical advantages:

[0029] 1. The installation method of one-way automatic meshing and tightening of the rack is adopted, which is easy to install and automatically locks, reducing the operation time and difficulty of on-site construction;

[0030] 2. Simply unscrew the headless screw and rotate the rack sleeve to disengage the meshing rack, and then the pipe can be pulled out of the connector body, achieving quick disassembly and facilitating subsequent maintenance of the pipe and reuse of accessories.

[0031] 3. The seal adopts compression seal, the pipeline has good sealing performance and can withstand higher pressure;

[0032] 4. Compact structure, stable performance, and rapid improvement of on-site operation efficiency;

[0033] 5. The rack is directly stamped out of the concave part of the rack sleeve, which can withstand large pull-out force, which is higher than the pull-out force standard of "Installation of Thin-walled Pipes for Building Water Supply". According to the needs of the application, the pull-out force that the joint can withstand can be increased by changing the thickness of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a unilateral cross-sectional view of a first embodiment of the present invention;

[0035] Figure 2 is a perspective view of a first embodiment of the present invention;

[0036] Figure 3 It is a complete assembly cross-sectional view of the first embodiment of the present invention;

[0037] Figure 4 This is a three-dimensional diagram of the connector body according to the first embodiment of the present invention;

[0038] Figure 5 is an exploded view of a first embodiment of the present invention;

[0039] Figure 6 It is a right side cross-sectional view and a partial enlarged view of the first embodiment of the present invention;

[0040] Figure 7 This is an exploded view and a sectional exploded view of the sealing structure of the first embodiment of the present invention;

[0041] Figure 8 This is an exploded view of the rack locking structure according to the first embodiment of the present invention;

[0042] Figure 9 This is a three-dimensional diagram of the rack locking structure of the first embodiment of the present invention;

[0043] Figure 10 It is a single-side cross-sectional view of a second embodiment of the present invention;

[0044] Figure 11 This is a front view of the rack locking structure according to the second embodiment of the present invention;

[0045] Figure 12 This is a perspective exploded view of the rack locking structure according to the second embodiment of the present invention;

[0046] Figure 13 This is a single-side cross-sectional view of a tooth according to a third embodiment of the present invention;

[0047] Figure 14 This is a three-dimensional diagram of a connector body according to a third embodiment of the present invention;

[0048] Figure 15 is a right side sectional view of a third embodiment of the present invention;

[0049] Figure 16 This is a three-dimensional diagram of the rack locking structure according to the third embodiment of the present invention;

[0050] Figure 17 is a cross-sectional exploded view of a fourth embodiment of the present invention;

[0051] Figure 18 is a perspective view of a fourth embodiment of the present invention;

[0052] Figure 19 is a cross-sectional view of a fourth embodiment of the present invention;

[0053] Figure 20 is a unilateral cross-sectional view of a fourth embodiment of the present invention;

[0054] Figure 21 This is a perspective view of the main body of the fourth embodiment of the present invention;

[0055] Figure 22 This is a front view of the main rack sleeve according to the fourth embodiment of the present invention;

[0056] Figure 23 This is a perspective view of the main rack sleeve of the fourth embodiment of the present invention;

[0057] Figure 24 This is an exploded view of the main rack sleeve of the fourth embodiment of the present invention;

[0058] Figure 25 is a single-side cross-sectional view of a fifth embodiment of the present invention;

[0059] Figure 26 is a perspective view of a fifth embodiment of the present invention;

[0060] Figure 27 This is a single-side sectional view of the overall assembly of the fifth embodiment of the present invention;

[0061] Figure 28 This is an exploded view of the main rack sleeve of the fifth embodiment of the present invention;

[0062] Figure 29 is a single-side cross-sectional view of a sixth embodiment of the present invention;

[0063] Figure 30 is a perspective view of a rack sleeve according to a sixth embodiment of the present invention;

[0064] Figure 31 This is an overall perspective view of a joint according to a sixth embodiment of the present invention;

[0065] Figure 32 This is an exploded view of a movable locking tooth according to a sixth embodiment of the present invention;

[0066] Figure 33 It is a meshing display and a single-side cross-sectional view of the sixth embodiment of the present invention;

[0067] Figure 34 This is a single-side cross-sectional view of a buckling rack structure according to a sixth embodiment of the present invention;

[0068] Figure 35 This is an exploded view of the buckling rack structure of the sixth embodiment of the present invention;

[0069] Figure 36 is a cross-sectional view of a seventh embodiment of the present invention;

[0070] Figure 37 This is a front view of a pipeline according to a seventh embodiment of the present invention;

[0071] Figure 38 is a cross-sectional view of an eighth embodiment of the present invention;

[0072] Figure 39 is a perspective view of an eighth embodiment of the present invention;

[0073] Figure 40 This is a perspective view of the main rack sleeve of the eighth embodiment of the present invention;

[0074] Figure 41 This is an exploded view of the main rack sleeve of the eighth embodiment of the present invention;

[0075] Figure 42 is an exploded cross-sectional view of a ninth embodiment of the present invention;

[0076] Figure 43 is a perspective view of a ninth embodiment of the present invention;

[0077] Figure 44 This is a perspective view of a ninth embodiment of the present invention;

[0078] Figure 45 This is a perspective view of a main rack sleeve according to a ninth embodiment of the present invention;

[0079] Figure 46 This is an exploded view of the main rack sleeve of the ninth embodiment of the present invention;

[0080] Figure 47 is a cross-sectional exploded view of a tenth embodiment of the present invention;

[0081] Figure 48 is an exploded perspective view of a tenth embodiment of the present invention;

[0082] Figure 49 This is an exploded view of the buckling rack structure according to the tenth embodiment of the present invention;

[0083] Figure 50 is an exploded cross-sectional view of an eleventh embodiment of the present invention;

[0084] Figure 51 is a front view of a joint body according to an eleventh embodiment of the present invention;

[0085] Figure 52 is a perspective view of a joint body according to an eleventh embodiment of the present invention;

[0086] Figure 53 is an exploded cross-sectional view of a twelfth embodiment of the present invention;

[0087] Figure 54 is a front view of a joint body according to a twelfth embodiment of the present invention;

[0088] Figure 55 It is a perspective view of a joint body according to a twelfth embodiment of the present invention.

[0089] In the figure: joint body A, sealing structure B, rack sleeve C, elastic pressure piece E, tooth seat structure A0, load socket position A1, compression sealing position A2, rack stamping position A3, positioning screw hole A4, radial concave A5, locking rack A6, radial convex A7, axial extrusion hole A8, spring retaining edge A9, outer concave ring A11, O-shaped groove A12, movable locking tooth A13, buckle hole A14, elliptical positioning hole A15, Lock tooth release 1 A131, lock tooth oval hole 1 A132, movable lock tooth 2 B14, lock tooth release 2 B141, lock tooth oval hole 2 B142, open sleeve retaining ring D21, headless screw 1, compression seal 2, top pressure ring 3, stainless steel gasket 4, bushing 5, plug-in fastener 6, open steel ring 7, welding pipe sleeve 8, pipe 9, main rack sleeve 10, buckle filling block 11, blocking block 12, U-shaped spring 13, lock Tooth spring 15, lock tooth pin 16, short cylindrical pin 17, long cylindrical pin 18, semicircular sleeve 19, O-ring 20, deformation groove 21, compression slope 22, push slope 31, elastic notch 41, U-shaped opening 51, rotating convex ring 61, rack periphery 62, insert rack 63, positioning circular hole 64, extrusion protrusion 65, lug 66, tool circular hole 67, stainless steel spring 68, rotating tool hole 69, positioning convex ring 81 , welding strip hole 82, rotating notch 83, outer convex ring 91, pipe concave 92, flange 101, limiting hole 102, axial protrusion 104, elliptical hole 105, inner retaining ring 107, plug spring piece 121, plug fixing hole 122, bolt hole 191, outer retaining ring 211, retaining ring notch 212, sleeve retaining edge 610, disconnecting notch 611, side concave 612, surface concave 613, welding hole 614. DETAILED DESCRIPTION

[0090] The present invention will be described in further detail below with reference to the embodiments in the accompanying drawings.

[0091] Figures 1 to 9 This is the first embodiment of the large-diameter pipe rack quick-release connector of the present invention, as shown in FIG. Figures 1 to 3 As shown, the large-diameter pipe rack quick-release connector includes a connector body A, a sealing structure B and a rack sleeve C. A plurality of tooth seat structures A0 are provided at the interface end of the connector body A, and a locking rack A6 is provided on one axial side of the tooth seat structure A0; the rack sleeve C is provided on the pipe 9, and a plurality of plug-in blocks 6 are provided on the rack sleeve C. The plug-in block 6 is provided with an insertion rack 63 adapted to the locking rack A6, and an elastic pressing member E is provided between the rack sleeve C and the plug-in block 6. When inserted, the elastic pressing member E causes the insertion rack 63 to be interlocked with the locking rack A6.

[0092] like Figure 1As shown in Figure 2, each interface end of the connector body A is provided with a compression seal position A2 and a rack stamping position A3. The sealing structure B is placed within the compression seal position A2, creating a seal between the outer circumference of the pipe 9 and the inner wall of the compression seal position A2. The tooth seat structure A0 is located at the rack stamping position A3.

[0093] like Figure 3 As shown in Figure 5, a rack sleeve C, an open steel ring 7, and a welded sleeve 8 are mounted on the pipe 9. The rack sleeve C fits over the locating collar 81 of the welded sleeve 8, while the open steel ring 7 fits inside the locating collar 81. The open steel ring 7 reinforces the locating collar 81 of the welded sleeve 8, preventing pipe contraction and cracking of the pipe or related components at this connection due to low external temperatures. The rack sleeve C can rotate 360° about its axis, and the welded sleeve 8 is welded to the pipe 9. During installation, the pipe 9 is pushed into the joint body A, and the rack on the rack sleeve C continuously engages and tightens with the rack on the rack punching position A3.

[0094] like Figure 1 As shown in / 4, a load socket A1 is provided at each interface end of the joint body A, and the pipe 9 is inserted into the load socket A1 until the steps on the bushing 5 and the load socket A1 are offset, ensuring that the pipe and the joint port are coaxial and bear the gravity of the pipe body itself and the fluid in the pipe.

[0095] like Figures 1 to 4 As shown, the rack stamping position A3 is provided with a plurality of radial recesses A5, and the radial recesses A5 are provided with a plurality of locking racks A6. Figure 4 As shown in / 6, the front and back sides of each interface end of the connector body A are provided with positioning screw holes A4.

[0096] like Figure 7 As shown, sealing structure B comprises a compression seal 2, a stainless steel gasket 4, and a top pressure ring 3. Compression seal 2 is provided with a deformation groove 21 and a compression slope 22. The stainless steel gasket 4 has an elastic notch 41, and the top pressure ring 3 has a pressing slope 31. When the pipe 9 is inserted into the interface end of the connector body A, the rack sleeve C pushes against the stainless steel gasket 4, which in turn pushes against the top pressure ring 3. The pressing slope 31 contacts the pressing slope 22 of the compression seal 2, forcing the compression seal 2 to contract radially, squeezing the outer circumference of the pipe 9 to create a seal.

[0097] During installation, first install the components of sealing structure B sequentially into compression seal A2 on connector body A. Compression seal 2 is a silicone component and can be installed directly. The top pressure ring 3 is a plastic component with a certain degree of elasticity. During installation, it is squeezed firmly to elastically deform and fit into the connector. The stainless steel gasket 4 has a flexible notch 41 that contracts during installation. Once installed, the sealing structure and connector body form a single assembly.

[0098] like Figure 3 、 6As shown in Figures 8 and 9, the rack sleeve C is provided with a rotating convex ring 61 and a plurality of rack circumferential edges 62. The rack circumferential edges 62 are respectively provided with a plurality of insertion racks 63, positioning circular holes 64, and extrusion protrusions 65, and a plurality of stainless steel springs 68 are welded thereto. Under the action of the stainless steel springs 68, the insertion rack 63 continuously bounces up and engages with the locking rack A6 on the joint body A during the process of inserting the pipe into the joint body A. The rack sleeve C pushes the stainless steel gasket 4 through the extrusion protrusion 65, thereby pushing the top pressure ring 3. After the rack is fully engaged and tightened, the headless screw 1 passes through the positioning screw hole A4 on the joint body A and the positioning circular hole 64 on the rack sleeve C. A lug 66 is welded to the rack sleeve C, and a tool circular hole 67 is opened on the lug 66.

[0099] like Figure 8 、 9 As shown, the welding sleeve 8 has a positioning collar 81 that mates with the rotating collar 61 on the rack sleeve C. The welding sleeve 8 is provided with a welding slot 82. The welding sleeve 8 is inserted into the rack sleeve C, and the open steel ring 7 is placed within the positioning collar 81 on the welding sleeve 8. The pipe 9 is inserted into the designated position on the pipe 9, and the welding sleeve 8 is welded to the pipe 9 through the welding slot 82. The rack sleeve C can rotate 360° around its axis.

[0100] Pipe 9, consisting of a rack sleeve C, a welded sleeve 8, and a split steel ring 7, is factory-assembled and snaps directly onto connector body A. Installation requires simply removing rack sleeve C from connector body A, fitting it onto pipe 9, and welding welded sleeve 8 to pipe 9 at the weld slots 82. After welding, pipe 9 is coaxially inserted into connector body A. Once fully engaged, tighten a headless screw at each end of connector body A to secure the engagement. For disassembly, simply remove the headless screws, rotate rack sleeve C to disengage, and pull the pipe from the connector body.

[0101] Due to the large pipe diameter, the rotating rack sleeve needs to squeeze and compress the seal, which will produce a large friction resistance. The stainless steel spring on the rotating rack sleeve may not be able to completely ensure that the rack is fully engaged. A screwdriver or other tool is needed to perform fine-tuning through the lug circular hole on the rack sleeve to ensure that the rack can be fully engaged and tightened.

[0102] The pipe diameter in the installation environment is generally along the corner or ceiling. The headless screw only prevents the rack sleeve from loosening during the vibration of the pipe and bearing the pulling force. Therefore, when installing, you only need to tighten one at each port of the joint body, select a positioning screw hole opposite the construction worker, and tighten the headless screw.

[0103] The second possible embodiment of the present invention is as follows Figures 10 to 12As shown, the difference between the second embodiment and the first embodiment is that the welding sleeve 8 is provided with a welding elongated hole 82 and a rotation notch 83, and no positioning convex ring is provided. It is directly welded to the predetermined position on the pipe 9 through the welding elongated hole 82. The rack sleeve C is provided with a rotation tool hole 69 and a sleeve rib 610. After the welding sleeve 8 is welded to the pipe 9, its own thickness abuts against the sleeve rib 610, allowing the rack sleeve C to slide backward along the pipe and rotate 360° about the axis. During installation, the bushing 5 is inserted into the pipe 9 to which the welding sleeve 8 has been welded, and coaxially inserted into the port A of the joint body. The bushing 5 and the stepped surface of the load socket A1 abut against each other, and the front end surface of the welding sleeve 8 squeezes the seal to produce a seal. Then insert the rack sleeve C into the rack stamping position A3 on the main body A corresponding to the rack position. Due to the action of the spring, it will continuously engage and bounce... After it is fully engaged and tightened, use the headless screw 1 to fix the rack sleeve and the joint body A through the positioning screw hole A4 and the positioning circular hole 64.

[0104] The third possible implementation method of the present invention is as follows: Figures 13 to 16 As shown, the difference between the third embodiment and the second embodiment is that the joint body A is provided with a plurality of radial protrusions A7, a locking rack A6 is provided on the radial protrusions A7, and a plurality of axial extrusion holes A8 are provided between the rack stamping position A3 and the compression sealing position A2. The rack stamping position A3 is in close contact with the outer circumference of the pipe 9. The rack sleeve C is provided with an extrusion protrusion 65 and a positioning circular hole 64. The extrusion protrusion 65 passes through the axial extrusion hole A8 and abuts against the stainless steel gasket 4, squeezing the compression seal 2 to produce a seal. The welding pipe sleeve 8 is directly welded to the outer circumference of the pipe 9, and the rack sleeve C can slide backward along the pipe and rotate 360° around the axis. During installation, first use the positioning circular hole 64 to force the rack to engage and tighten, and then tighten the headless screw 1.

[0105] A fourth possible embodiment of the present invention is as follows Figures 17 to 24As shown, the fourth embodiment differs from the first embodiment in that the locking rack is not directly stamped out on the connector body A, but a main rack sleeve 10 is provided. The main rack sleeve 10 is mounted on the connector body A and can rotate around the axis. The main rack sleeve 10 is provided with a flange 101, a limiting hole 102 and a locking rack A6. The U-shaped spring 13 is placed in the flange 101, and the spring retaining edge A9 on the connector body A passes through the limiting hole 102 and presses against the U-shaped spring 13 on one side. Since the U-shaped spring 13 is in a compressed state, the spring retaining edge A9 is forced to press against the limiting hole 102 on the other side. The rotation angle of the main rack sleeve 10 is within the range of the flange 101. The rack sleeve C is provided with a disconnection notch 611, and the disconnection notch 611 is provided with a side recess 612. The disconnection notch 611 is used to insert the blocking block 12 after installation is completed. The blocking block 12 is snapped onto the side recess 612 and will not fall out. The rack sleeve C is buckled on the pipe 9, and the buckling filling block 11 is placed in the surface concave 613 and the pipe concave 92 to increase the buckling strength. The bushing 5 has a U-shaped opening 51 corresponding to the number of racks and is inserted into the pipe 9.

[0106] A fifth possible embodiment of the present invention is as follows Figures 25 to 28 As shown, the fifth embodiment differs from the fourth embodiment in that the rack housing 10 is not directly stamped with a rack. Instead, it is provided with an axial protrusion 104, which is provided with a plurality of pairs of elliptical holes 105. A gear seat structure A0 is placed within the axial protrusion 104. This gear seat structure A0 is a movable lock tooth assembly, including a movable lock tooth 1 A13, a movable lock tooth 2 B14, a lock tooth spring 15, and a lock tooth pin 16. The movable lock tooth 1 A13 and the movable lock tooth 2 B14 are provided with a lock tooth release 1 A131 and a lock tooth release 2 B141, as well as a lock tooth elliptical hole 1 A132 and a lock tooth elliptical hole 2 B142, respectively. The lock tooth pin 16 passes through the lock tooth elliptical hole 1 A132, the lock tooth elliptical hole 2 B142, and the elliptical hole 105 on the rack sleeve 10 in sequence and is welded to the surface of the axial protrusion 104. The lock tooth spring 15 is placed between the movable lock tooth 1 A13 and the movable lock tooth 2 B14, elastically compressed, and stores elastic potential energy. The main rack sleeve 10 can rotate 360 ​​degrees along the axis. When installed, it is rotated to the appropriate angle. The movable lock teeth A13 and B14 are engaged and tightened with the inserted rack 63 on the rack sleeve C that is clamped on the pipe 9. When disassembling, use a tool to close the lock tooth release A131 and the lock tooth release B141 to separate the movable lock teeth and the teeth on the rack sleeve C, and the pipe can be easily pulled out of the joint.

[0107] A sixth possible implementation of the present invention is as follows Figures 29 to 35As shown, the sixth embodiment differs from the fifth embodiment in that the main rack sleeve 10 is welded to the port of the main body, and the locking pins are provided as two cylindrical pins of different lengths: a short cylindrical pin 17 and a long cylindrical pin 18. The main body A is provided with an elliptical positioning hole A15. The short cylindrical pin 17 passes through the elliptical locking hole A132 on the movable locking tooth A13 and the elliptical hole 105 on the main rack sleeve 10 and is welded to the main rack sleeve 10. The long cylindrical pin 18 is also positioned in the elliptical positioning hole A15 on the main body, thereby increasing the strength of the movable locking tooth assembly. The rack sleeve C is welded to the pipe 9 by a welded pipe sleeve 8 and can rotate 360° around the pipe's axis. During installation, the pipe 9 is first inserted coaxially with the main body A. After it is fully inserted, the rack sleeve C is rotated to the appropriate angle and inserted into the main rack sleeve 10. The rack is continuously engaged and tightened until the teeth are fully engaged.

[0108] A seventh possible implementation of the present invention is as follows: Figure 36 、 37 As shown, the seventh embodiment differs from the sixth embodiment in that the welding sleeve 8 is replaced by an outer convex ring 91. This embodiment can be used for thin-walled pipes, and the welding retaining ring can be replaced by a convex ring, a flange, a ridge, etc.

[0109] An eighth possible implementation of the present invention is as follows: Figures 38 to 41 As shown, the difference between the eighth embodiment and the sixth embodiment is that the main rack sleeve 10 is provided with an axial protrusion 104, the axial protrusion 104 is provided with a pair of elliptical holes 105, the cylindrical pin is replaced with an integrated lock tooth pin 16, and the movable lock tooth is placed in the axial protrusion 104.

[0110] A ninth possible implementation of the present invention is as follows: Figures 42 to 46 As shown, the ninth embodiment differs from the eighth embodiment in that the main rack sleeve 10 comprises two identical semicircular sleeves 19, each provided with a plurality of bolt holes 191. The two identical semicircular sleeves 19 are locked together by bolts 20 passing through the bolt holes 191 to form a sleeve assembly. The connector body A is provided with an outer concave ring A11 and a plurality of O-ring grooves A12. The main rack sleeve 10 fits over the outer concave ring A11 and can rotate 360° around its axis. The rack sleeve C is directly welded to the outer wall of the pipe 9. The rack sleeve C is provided with welding holes 614 to increase the weld line length and improve weld strength. The sealing structure B comprises a plurality of O-rings 20, which fit directly into the O-ring grooves A12 on the connector body A. The O-rings 20 form a squeeze seal between the connector body A and the inner wall of the pipe 9. During installation, the main rack sleeve 10 is rotated to the appropriate angle, the pipe 9 is coaxially inserted into the connector body A, and the racks are engaged and tightened until all the racks are fully engaged.

[0111] A tenth possible implementation of the present invention is as follows Figures 47 to 49As shown, the tenth embodiment differs from the ninth embodiment in that the rack sleeve C is welded to the connector body A, and the main rack sleeve 10 is mounted on the pipe 9. The main rack sleeve 10 is provided with several movable locking teeth, and the pipe 9 is provided with an open sleeve retaining ring D21. The main rack sleeve 10 is provided with an inner retaining ring 107. The open sleeve retaining ring D21 is provided with an outer retaining ring 211 and a retaining ring notch 212. The open sleeve retaining ring D21 is now shrunk into the main rack sleeve 10 through the retaining ring notch 212, and then the two are mounted on the pipe 9. The open sleeve retaining ring D21 is welded to the pipe. The inner retaining ring 107 of the main rack sleeve 10 is in contact with the outer retaining ring 211, and the main rack sleeve 10 can rotate 360 ​​degrees along the axis. During installation, the main rack sleeve 10 is rotated to the appropriate angle and coaxially inserted into the connector body A. The racks are engaged and tightened until all the racks are engaged.

[0112] An eleventh possible implementation of the present invention is as follows Figures 50 to 52 As shown, the eleventh embodiment differs from the first embodiment in that the locking rack A6 is replaced by a snap hole A14, located on the concave side of the connector body A and interlocking with the inserted rack 63. A set screw hole A4 is located on the concave surface, and the rack periphery 62 is located on the concave surface. A headless screw 1 secures the rack sleeve to the connector body A through the set screw hole A4 and the circular positioning hole 64. This connection between the inserted rack and the snap hole is simple in structure and easy to manufacture.

[0113] The twelfth possible implementation of the present invention is as follows Figures 53 to 55 As shown, the difference between the twelfth embodiment and the eleventh embodiment is that the positioning screw hole A4 is provided on the surface of the outer cylinder of the joint body A, the rack circular periphery 62 is located within the surface of the outer cylinder of the joint body A, and the headless screw 1 fixes the rack sleeve and the joint body A through the positioning screw hole A4 and the positioning circular hole 64.

[0114] In summary, the present invention, as described in the specification and illustrations, has been manufactured into actual samples and tested multiple times. The test results show that the invention can achieve its intended purpose and its practicality is beyond doubt. The above embodiments are only used to facilitate the description of the content of the invention and are not intended to be formally limited thereto. Any equivalent embodiment made by a person with common knowledge in the relevant technical field and making partial changes or modifications to the technical content disclosed in the invention without departing from the scope of the technical features and similar features of the present invention, falls within the scope of protection of the present invention.

Claims

1. A large-diameter pipe rack quick-release connector, comprising a connector body (A), a sealing structure (B), and a rack sleeve (C), characterized in that: The connector body (A) is provided with a plurality of tooth seat structures (A0) at the interface end, and a locking rack (A6) is provided on one axial side of the tooth seat structure (A0); a rack sleeve (C) is provided on the pipe (9), and a plurality of plug-in blocks (6) are provided on the rack sleeve (C), and the plug-in blocks (6) are provided with an insertion rack (63) adapted to the locking rack (A6); an elastic pressing member (E) is provided between the rack sleeve (C) and the plug-in block (6), and when inserted, the insertion rack (63) is engaged with the locking rack (A6) through the elastic pressing member (E); Each interface end of the joint body (A) is provided with a compression sealing position (A2), and the sealing structure (B) is sleeved on the inner wall of the compression sealing position (A2), so that the sealing structure (B), the inner wall of the compression sealing position (A2) and the outer circumferential surface of the pipe (9) form a seal; The sealing structure (B) includes a compression seal (2) and a top pressure ring (3), wherein the compression seal (2) is provided with a deformation groove (21) and a compression slope (22), and the top pressure ring (3) is provided with a push slope (31). When the pipe (9) is inserted into the interface end of the joint body (A), the rack sleeve (C) pushes the top pressure ring (3), and the push slope (31) is in close contact with the compression slope (22) on the compression seal (2), and the compression seal (2) radially contracts and squeezes the outer circumferential surface of the pipe (9) to produce a seal; The elastic pressing member (E) is a stainless steel spring (68), and the stainless steel spring (68) is located on one side of the plug-in block (6) and opposite to the insertion rack (63); The interface end of the connector body (A) is provided with a main body rack sleeve (10), the main body rack sleeve (10) is sleeved on the interface end of the connector body (A), and the tooth seat structure (A0) is located on the main body rack sleeve (10); The main rack sleeve (10) is provided with a flange (101) at one end, a U-shaped limiting hole (102) is provided on one side of the flange (101), a locking rack (A6) is provided at the other end of the main rack sleeve (10), and a U-shaped spring (13) is provided and placed in the flange (101), and the main rack sleeve (10) rotates within the range of the flange (101); a spring retaining edge (A9) is provided on the joint body (A) and passes through the limiting hole (102), and one side of the spring retaining edge (A9) is against the U-shaped spring (13), and the U-shaped spring (13) is in a compressed state so that the other side of the spring retaining edge (A9) is close to the limiting hole (102); the rack sleeve (C) is provided with a disconnection notch (611), and the disconnection notch (611) is provided with a side concave (612); The elastic pressing member (E) includes a blocking block (12) and a blocking block spring piece (121); the disconnecting notch (611) is inserted into the blocking block (12) after installation is completed; the blocking block (12) is provided with a blocking block spring piece (121) that is snap-fastened on the side recess (612); the blocking block (12) is provided with a blocking block fixing hole (122) that is fixed on the pipe (9); the pressing filling block (11) is snapped into the surface recess (613) and the pipe recess (92) to press the rack sleeve (C) on the pipe (9).

2. The large-diameter pipe rack quick connector according to claim 1, characterized in that The main rack sleeve (10) is formed by connecting two identical semicircular sleeves (19).

3. The large diameter pipe rack quick connector according to claim 1, characterized in that Each interface end of the joint body (A) is provided with a load socket (A1), and the pipe (9) is inserted into the load socket (A1) and abuts against the step on the load socket (A1).

4. The large-diameter pipe rack quick connector according to claim 1, characterized in that A bushing (5) is provided inside the interface end of the pipe (9), and the bushing (5) has a flange edge with the same diameter as the pipe (9) and contacts the pipe (9) mouth.

5. The large-diameter pipe rack quick connector according to claim 1, characterized in that The interface end of the pipe (9) is provided with an outer convex ring (91) for positioning the rack sleeve (C) when locking.

6. The large-diameter pipe rack quick connector according to claim 1, characterized in that A plurality of axial protrusions (104) are provided on the cylindrical surface at one end of the main rack sleeve (10), and a tooth seat structure (A0) is provided in the axial protrusion (104). The two axial sides of the tooth seat structure (A0) are respectively provided with locking racks as movable lock tooth 1 (A13) and movable lock tooth 2 (B14). The tooth seat structure (A0) also includes a lock tooth spring (15) and a lock tooth pin (16). The tooth surfaces of the movable lock tooth 1 (A13) and the movable lock tooth 2 (B14) are arranged outwardly relative to each other and are connected by the lock tooth pin (16). The lock tooth spring (15) is placed between the movable lock tooth 1 (A13) and the movable lock tooth 2 (B14). The movable lock tooth 1 (A13) and the movable lock tooth 2 (B14) elastically expand and contract along the lock tooth pin (16). The tooth seat structure (A0) is fixed in the axial protrusion (104) by the lock tooth pin (16).

7. The large-diameter pipe rack quick connector according to claim 1, characterized in that The interface end of the connector body (A) is provided with an outer concave ring (A11) and a plurality of O-shaped grooves (A12), the main body rack sleeve (10) is sleeved on the outer concave ring (A11), and the sealing structure (B) includes a plurality of O-shaped rings (20), and the O-shaped rings (20) are sleeved on the O-shaped grooves (A12) on the interface end of the connector body (A).

8. The large diameter pipe rack quick connector according to claim 1, characterized in that The main body rack sleeve (10) and the rack sleeve (C) are arranged in an interchangeable position.

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