Metal pipe buckle type sealing connecting piece

Abstract

The invention discloses a metal pipe buckle type sealing connecting piece which comprises a buckle type sealing sleeve used for conducting sealing connection on a first metal pipe and a second metal pipe, and a fixed sealing ring is fixedly connected to the center of the interior of the buckle type sealing sleeve in a sleeved mode. According to the invention, through the cooperation of a dual-locking structure that the buckle of the cylindrical chuck is preliminarily fixed and the positioning pin is prevented from falling off, and the operation advantage of tool-free quick release, the metal pipe fitting is suitable for operation in a narrow space, so that the first metal pipe fitting and the second metal pipe fitting can be quickly mounted and connected through the buckle type sealing sleeve, and the service life of the first metal pipe fitting and the second metal pipe fitting is prolonged. And the connection is very firm, so that the sealing performance of the first metal pipe and the second metal pipe which are mounted and connected by the buckle type sealing sleeve is better, the situation that the assembling steps are relatively tedious and the operation is difficult in a narrow space in the conventional mechanical connection mode is avoided, the risk of leakage is reduced, and the service life of the metal pipe is prolonged. And meanwhile, the working efficiency is improved, and the sealing performance is better.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe sealing, and in particular to a metal pipe snap-on sealing connector. Background Art

[0002] Currently, the butt connection of metal pipes primarily relies on traditional mechanical connections or welding. While welding can achieve high joint strength, it requires specialized equipment and skilled personnel, imposes stringent requirements on the construction environment, and requires destructive removal of the welds for subsequent maintenance, making them difficult to reuse.

[0003] While other mechanical connection methods (such as flange connections and threaded connections) avoid the high-temperature issues of welding, they are less convenient to install. Flange connections require multiple bolts to tighten the flange, which is not only cumbersome to assemble, but also has uneven bolt preload, which can easily lead to unbalanced force on the sealing surface and cause media leakage. Furthermore, the flange structure is large and difficult to operate in confined spaces. Threaded connections require extremely high thread machining precision on the pipe ends. When the threads are worn, bumped, or otherwise damaged, the sealing performance is significantly reduced. Furthermore, the threads are prone to loosening under vibration conditions, increasing the risk of leakage.

[0004] The drawbacks of these traditional connection methods are even more pronounced in scenarios requiring frequent disassembly and assembly or temporary docking, such as equipment commissioning, pipeline maintenance, and temporary conveying systems. For example, testing metal pipes requires multiple replacements of docking pipes, and the time-consuming and labor-intensive disassembly and assembly of welded or flanged connections significantly impacts work efficiency and reduces sealing reliability.

[0005] To this end, the present invention proposes a metal pipe snap-on sealing connector. Summary of the Invention

[0006] Based on the technical problems existing in the background technology, the present invention proposes a metal pipe snap-on sealing connector.

[0007] The present invention provides a metal pipe snap-in sealing connector, comprising a snap-in sealing sleeve for sealingly connecting a first metal pipe and a second metal pipe. A fixed sealing ring is fixedly sleeved in the center of the snap-in sealing sleeve. The ends of the first metal pipe and the second metal pipe that are close to each other are movably sleeved in the snap-in sealing sleeve and contact and seal with the fixed sealing ring.

[0008] The top and bottom of the snap-on sealing sleeve are fixedly provided with raised parts, and symmetrical cylindrical clamps are movably installed on the raised parts. The ends of the cylindrical clamps are rounded. The first metal tube and the second metal tube are both provided with clamping grooves, and the rounded ends of the cylindrical clamps are movably positioned and clamped in the clamping grooves; the raised parts are respectively provided with a rotating cavity and movable cavities provided on both sides of the rotating cavity, and an extrusion block is movably installed in the movable cavity. The top end of the cylindrical clamp movably penetrates into the movable cavity and is fixedly connected to the extrusion block; an elastic clamp is fixedly connected between the extrusion block and the top inner wall of the movable cavity;

[0009] A locking and anti-slip mechanism for locking the extrusion block is provided in the rotating cavity; a T-shaped connecting pipe is sealed and slidably sleeved inside the ends of the first metal pipe and the second metal pipe that are close to each other; the T-shaped connecting pipe includes an integral fixedly connected pipe body and a movable sealing ring, and the end faces of the movable sealing ring and the fixed sealing ring are matched and sealed; an annular groove is provided on the inner wall of the end of the first metal pipe and the second metal pipe that are close to each other, and the movable sealing ring is sealingly slidably sleeved in the annular groove, and a compensation spring sleeved on the pipe body is fixedly connected between the movable sealing ring and the side wall of the annular groove.

[0010] As a further preference of the present invention, the end of the movable sealing ring is fixedly connected to a rubber sealing ring, and the end of the movable sealing ring is sealed and matched with the end face of the fixed sealing ring through the rubber sealing ring; a first slider is provided on the tube body of the T-shaped connecting pipe, and a sliding groove is provided on the side walls of the first metal pipe and the second metal pipe, and the first slider is slidably installed in the sliding groove along the horizontal direction.

[0011] As a further preference of the present invention, the locking and anti-slip mechanism includes two linkage blocks movably installed in the rotating cavity, a positioning pin is fixedly connected to the outer side of the linkage block, a positioning groove is provided on one side of the extrusion block, and one end of the positioning pin is movably positioned in the positioning groove, and a positioning spring sleeved on the positioning pin is fixedly connected between the linkage block and the side wall of the rotating cavity; a pull rope is fixedly connected to the side of the two linkage blocks close to each other, and the ends of the two pull ropes close to each other are fixedly connected to the same reel, a rotating shaft is fixedly sleeved on the reel, the rotating shaft is rotatably installed in the rotating cavity, a knob is fixedly connected to the top of the rotating shaft, a groove is provided on the protruding part, and the knob is provided in the groove.

[0012] As a further preferred embodiment of the present invention, a second slider is provided at the bottom of the linkage block, a guide rail is provided on the bottom inner wall of the rotating cavity, and the second slider is slidably installed on the guide rail along the horizontal direction.

[0013] As a further preferred embodiment of the present invention, a separation disk is provided on the reel, and the ends of the two pull ropes close to each other are respectively provided on the reel on the upper and lower sides of the separation disk.

[0014] As a further preferred embodiment of the present invention, a mounting hole is provided on the top inner wall of the rotating chamber, a bearing is provided in the mounting hole, and the rotating shaft is rotatably mounted on the bearing.

[0015] As a further preferred embodiment of the present invention, a guide rod is fixedly installed in the movable cavity, a guide hole is provided on the extrusion block, and the extrusion block is slidably sleeved on the guide rod along the vertical direction through the guide hole.

[0016] As a further preferred embodiment of the present invention, the snap-on sealing sleeve is provided with a through hole, and the cylindrical clamp movably passes through the through hole.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, the rotary shaft and the reel are rotated by a knob. When the reel rotates, the pull rope is reeled in and the positioning pin is moved into the rotating chamber through the linkage block, and the positioning spring is stretched and deformed at the same time. The first metal tube and the second metal tube are moved toward each other and inserted into the snap-on sealing sleeve, so that the first metal tube, the second metal tube and the rubber sealing ring are all in contact with the fixed sealing ring for sealing. At the same time, the rounded end of the cylindrical clamp is clamped in the clamping groove, and the elastic clamp is compressed and deformed. This allows for preliminary snap-on positioning.

[0019] 2. In the present invention, the fixed sealing ring also initially serves as a limiter. Thus, when the first metal pipe and the second metal pipe move toward each other, they are restricted by the fixed sealing ring, prompting the rubber sealing ring and the T-shaped connecting pipe to squeeze the compensation spring. In this way, under the reverse compensation effect of the elastic force of the compensation spring, the rubber sealing ring at the end of the T-shaped connecting pipe and the fixed sealing ring are further compressed and sealed, thereby improving the sealing performance.

[0020] 3. In the present invention, when the knob is loosened, the positioning spring returns the positioning pin on the linkage block to the active cavity and positions it in the positioning slot. This positioning pin and the positioning slot ensure that the extrusion block and the cylindrical clamp are firmly fixed in the slot, preventing the first and second metal pipes from loosening after connection. Similarly, by simply performing the reverse operation, the snap-on sealing sleeve, the first and second metal pipes can be quickly disassembled and separated, making the installation and disassembly process very convenient and quick, and facilitating assembly and use.

[0021] To sum up, the metal pipe snap-on sealing connector, through the cooperation of the initial fixation of the snap of the cylindrical clamp and the double locking structure of the positioning pin to prevent falling off, as well as the advantage of tool-free quick release operation, is suitable for operation in a small space. In this way, not only can the first metal pipe and the second metal pipe be quickly installed and connected through the snap-on sealing sleeve, but the connection is also very firm, thereby ensuring that the snap-on sealing sleeve can better seal the first metal pipe and the second metal pipe after installation and connection, avoiding the previous mechanical connection method with cumbersome assembly steps during installation, and thus difficult to operate in a small space, reducing the risk of leakage, while improving work efficiency and making the sealing better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a metal pipe snap-on sealing connector proposed by the present invention;

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of part A;

[0024] Figure 3 This is a schematic diagram of the present invention when not installed;

[0025] Figure 4 Schematic diagram of the cross-sectional structure of the snap-on sealing sleeve and the raised portion of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the T-shaped connecting pipe of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the reel and the separator disc in the present invention.

[0028] In the figure: 1. first metal pipe; 2. second metal pipe; 201. slot; 202. rubber sealing ring; 203. T-type connecting pipe; 2031. movable sealing ring; 2032. pipe body; 204. compensation spring; 205. first slider; 206. slide groove; 207. second slider; 208. annular groove; 3. snap-on sealing sleeve; 301. fixed sealing ring; 302. through hole; 4. raised part; 401. cylindrical clamp; 402. groove; 403. rotating cavity; 404. movable cavity; 5. knob; 6. rotating shaft; 7. reel; 701. separator; 8. pull rope; 9. linkage block; 10. bearing; 11. positioning pin; 12. positioning slot; 13. positioning spring; 14. extrusion block; 15. elastic clamp; 16. guide rod; 17. guide hole. DETAILED DESCRIPTION

[0029] The present invention will be further explained below with reference to specific embodiments.

[0030] Example

[0031] refer to Figure 1-6 This embodiment provides a metal pipe snap-in sealing connector, comprising a snap-in sealing sleeve 3 for sealingly connecting a first metal pipe 1 and a second metal pipe 2. A fixed sealing ring 301 is fixedly sleeved in the center of the snap-in sealing sleeve 3. The ends of the first metal pipe 1 and the second metal pipe 2 that are close to each other are movably sleeved in the snap-in sealing sleeve 3 and contact and seal against the fixed sealing ring 301.

[0032] The top and bottom of the snap-on sealing sleeve 3 are fixedly provided with raised portions 4, and symmetrically arranged cylindrical clamps 401 are movably mounted on the raised portions 4. The ends of the cylindrical clamps 401 have a chamfered structure. The first metal tube 1 and the second metal tube 2 are both provided with clamping grooves 201, and the chamfered ends of the cylindrical clamps 401 are movably positioned and clamped in the clamping grooves 201; the raised portions 4 are respectively provided with a rotating cavity 403 and movable cavities 404 provided on both sides of the rotating cavity 403, and an extrusion block 14 is movably mounted in the movable cavity 404. The top end of the cylindrical clamp 401 movably penetrates into the movable cavity 404 and is fixedly connected to the extrusion block 14; an elastic clamp 15 is fixedly connected between the extrusion block 14 and the top inner wall of the movable cavity 404;

[0033] A locking and anti-slip mechanism for locking the extrusion block 14 is provided in the rotating cavity 403; a T-shaped connecting pipe 203 is sealed and slidably sleeved inside the end where the first metal tube 1 and the second metal tube 2 are close to each other; the T-shaped connecting pipe 203 includes an integral fixedly connected tube body 2032 and a movable sealing ring 2031, and the movable sealing ring 2031 cooperates with the end face of the fixed sealing ring 301 for sealing; an annular groove 208 is provided on the inner wall where the first metal tube 1 and the second metal tube 2 are close to each other, and the movable sealing ring 2031 is sealingly slidably sleeved in the annular groove 208, and a compensation spring 204 sleeved on the tube body 2032 is fixedly connected between the movable sealing ring 2031 and the side wall of the annular groove 208.

[0034] In this embodiment, the end of the movable sealing ring 2031 is fixedly connected to the rubber sealing ring 202, and the end of the movable sealing ring 2031 is sealed against the end face of the fixed sealing ring 301 through the rubber sealing ring 202; a first slider 205 is provided on the tube body 2032 set in the T-shaped connecting tube 203, and a slide groove 206 is provided on the side walls of the first metal tube 1 and the second metal tube 2, and the first slider 205 is slidably installed in the slide groove 206 along the horizontal direction.

[0035] In this embodiment, the locking and anti-slip mechanism includes two linkage blocks 9 movably installed in the rotating cavity 403, a positioning pin 11 is fixedly connected to the outer side of the linkage block 9, a positioning groove 12 is provided on one side of the extrusion block 14, and one end of the positioning pin 11 is movably positioned in the positioning groove 12, and a positioning spring 13 sleeved on the positioning pin 11 is fixedly connected between the linkage block 9 and the side wall of the rotating cavity 403; the two linkage blocks 9 are fixedly connected to a pull rope 8 on one side close to each other, and the two pull ropes 8 are fixedly connected to the same reel 7 on one end close to each other, and a rotating shaft 6 is fixedly sleeved on the reel 7, and the rotating shaft 6 is rotatably installed in the rotating cavity 403, and a knob 5 is fixedly connected to the top of the rotating shaft 6, a groove 402 is provided on the raised part 4, and the knob 5 is arranged in the groove 402.

[0036] Among them, a second slider 207 is provided at the bottom of the linkage block 9, and a guide rail is provided on the bottom inner wall of the rotating chamber 403, and the second slider 207 is slidably installed on the guide rail along the horizontal direction; a separation disk 701 is provided on the reel 7, and the ends of the two pull ropes 8 close to each other are respectively provided on the reel 7 on the upper and lower sides of the separation disk 701.

[0037] Among them, a mounting hole is provided on the inner wall of the top side of the rotating chamber 403, a bearing 10 is provided in the mounting hole, and the rotating shaft 6 is rotatably mounted on the bearing 10; a guide rod 16 is fixedly installed in the movable chamber 404, and a guide hole 17 is provided on the extrusion block 14, and the extrusion block 14 is slidably sleeved on the guide rod 16 along the vertical direction through the guide hole 17; a through hole 302 is provided on the snap-on sealing sleeve 3, and the cylindrical clamp 401 is movably inserted into the through hole 302.

[0038] See Figure 1-6The metal pipe snap-on sealing connector shown in the figure, when the first metal pipe 1 and the second metal pipe 2 are installed and connected for use, the rotating shaft 6 and the reel 7 are first rotated by the knob 5. When the reel 7 rotates, the pull rope 8 is wound and the positioning pin 11 is moved into the rotating cavity 403 through the linkage block 9, and the positioning spring 13 is stretched and deformed at the same time; then the first metal pipe 1 and the second metal pipe 2 are moved toward each other and inserted into the snap-on sealing sleeve 3, so that the first metal pipe 1 and the second metal pipe 2 and the rubber sealing ring 202 are all in contact with the fixed sealing ring 301 for sealing, and the rounded end of the cylindrical clamp 401 is clamped in the clamping groove 201, and the elastic clamp 15 is compressed and deformed, so that preliminary snap-on positioning can be performed; at the same time, the fixed sealing ring 301 also initially plays a limiting role, In this way, when the first metal tube 1 and the second metal tube 2 move toward each other, they will be restricted by the fixed sealing ring 301, prompting the rubber sealing ring 202 and the T-shaped connecting tube 203 to squeeze the compensation spring 204. In this way, under the reverse compensation effect of the elastic force of the compensation spring 204, the rubber sealing ring 202 at the end of the T-shaped connecting tube 203 and the fixed sealing ring 301 are further compressed and sealed, making the sealing better; finally, the knob 5 is loosened, and under the reset effect of the positioning spring 13, the positioning pin 11 on the linkage block 9 can be moved into the movable cavity 404 and positioned in the positioning groove 12. In this way, the positioning pin 11 and the positioning groove 12 are positioned to ensure that the extrusion block 14 and the cylindrical clamp 401 can be firmly clamped in the clamping groove 201, so that the first metal tube 1 and the second metal tube 2 are not easy to loosen after connection. Similarly, on the contrary, by simply performing the above-mentioned reverse operation, the snap-on sealing sleeve 3, the first metal tube 1 and the second metal tube 2 can be quickly disassembled and separated (such as Figure 3 ), which makes the installation and disassembly process very convenient and quick, and is convenient for people to disassemble and use.

[0039] Finally, in the present invention, the cooperation of the initial fixation of the buckle of the cylindrical clamp 401 and the double locking structure to prevent the positioning pin from falling off, as well as the advantage of tool-free quick release operation, is suitable for operation in a small space. In this way, not only can the first metal pipe 1 and the second metal pipe 2 be quickly installed and connected through the snap-on sealing sleeve 3, but the connection is also very firm, thereby ensuring that the snap-on sealing sleeve 3 can better seal the first metal pipe 1 and the second metal pipe 2 after installation and connection, avoiding the previous mechanical connection method with cumbersome assembly steps during installation, and thus difficult to operate in a small space, reducing the risk of leakage, while improving work efficiency and making the sealing better.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A metal pipe snap-on sealing connector, comprising a snap-on sealing sleeve (3) for sealingly connecting a first metal pipe (1) and a second metal pipe (2), characterized in that: A fixed sealing ring (301) is fixedly sleeved in the center of the inner portion of the snap-fit ​​sealing sleeve (3); the ends of the first metal tube (1) and the second metal tube (2) that are close to each other are movably sleeved in the snap-fit ​​sealing sleeve (3) and contact and seal with the fixed sealing ring (301); The top and bottom of the snap-on sealing sleeve (3) are fixedly provided with raised parts (4), and a symmetrically arranged cylindrical clamp (401) is movably installed on the raised part (4), and the end of the cylindrical clamp (401) is a chamfered structure. The first metal tube (1) and the second metal tube (2) are both provided with a clamping groove (201), and the chamfered end of the cylindrical clamp (401) is movably positioned and clamped in the clamping groove (201); the raised part (4) is respectively provided with a rotating cavity (403) and movable cavities (404) provided on both sides of the rotating cavity (403), and an extrusion block (14) is movably installed in the movable cavity (404), and the top end of the cylindrical clamp (401) movably penetrates into the movable cavity (404) and is fixedly connected to the extrusion block (14); an elastic clamp (15) is fixedly connected between the extrusion block (14) and the top inner wall of the movable cavity (404); The rotating cavity (403) is provided with a locking anti-slip mechanism for locking the extrusion block (14); a T-shaped connecting pipe (203) is sealed and slidably sleeved inside the ends of the first metal pipe (1) and the second metal pipe (2) that are close to each other; the T-shaped connecting pipe (203) comprises a pipe body (2032) and a movable sealing ring (2031) that are fixedly connected in an integral manner, and the end faces of the movable sealing ring (2031) and the fixed sealing ring (301) are matched and sealed; an annular groove (208) is provided on the inner wall of the ends of the first metal pipe (1) and the second metal pipe (2) that are close to each other, and the movable sealing ring (2031) is sealingly slidably sleeved in the annular groove (208); a compensation spring (204) sleeved on the pipe body (2032) is fixedly connected between the movable sealing ring (2031) and the side wall of the annular groove (208).

2. A metal pipe snap-on sealing connector according to claim 1, characterized in that: The end of the movable sealing ring (2031) is fixedly connected to a rubber sealing ring (202), and the end of the movable sealing ring (2031) contacts and seals the end face of the fixed sealing ring (301) through the rubber sealing ring (202); a first slider (205) is provided on the tube body (2032) provided with the T-shaped connecting tube (203), and a sliding groove (206) is provided on the side walls of the first metal tube (1) and the second metal tube (2), and the first slider (205) is slidably installed in the sliding groove (206) along the horizontal direction.

3. The metal pipe snap-on sealing connector according to claim 1, characterized in that: The locking anti-slip mechanism comprises two linkage blocks (9) movably mounted in the rotating cavity (403); a positioning pin (11) is fixedly connected to the outer side of the linkage block (9); a positioning groove (12) is provided on one side of the extrusion block (14); and one end of the positioning pin (11) is movably positioned in the positioning groove (12); a positioning spring (13) sleeved on the positioning pin (11) is fixedly connected between the linkage block (9) and the side wall of the rotating cavity (403); a pull rope (8) is fixedly connected to the side of the two linkage blocks (9) close to each other; one end of the two pull ropes (8) close to each other is fixedly connected to the same reel (7); a rotating shaft (6) is fixedly sleeved on the reel (7); the rotating shaft (6) is rotatably mounted in the rotating cavity (403); a knob (5) is fixedly connected to the top of the rotating shaft (6); a groove (402) is provided on the protruding portion (4), and the knob (5) is arranged in the groove (402).

4. The metal pipe snap-on sealing connector according to claim 3, characterized in that: A second slider (207) is provided at the bottom of the linkage block (9), a guide rail is provided on the inner wall of the bottom side of the rotating cavity (403), and the second slider (207) is slidably mounted on the guide rail in a horizontal direction.

5. The metal pipe snap-on sealing connector according to claim 3, characterized in that: A separation disc (701) is provided on the reel (7), and the ends of the two pull ropes (8) close to each other are respectively provided on the reel (7) on the upper side and the lower side of the separation disc (701).

6. The metal pipe snap-on sealing connector according to claim 3, characterized in that: A mounting hole is provided on the top inner wall of the rotating chamber (403), a bearing (10) is provided in the mounting hole, and the rotating shaft (6) is rotatably mounted on the bearing (10).

7. The metal pipe snap-on sealing connector according to claim 1, characterized in that: A guide rod (16) is fixedly installed in the movable cavity (404), a guide hole (17) is provided on the extrusion block (14), and the extrusion block (14) is slidably sleeved on the guide rod (16) in a vertical direction through the guide hole (17).

8. The metal pipe snap-on sealing connector according to claim 1, characterized in that: The snap-on sealing sleeve (3) is provided with a through hole (302), and the cylindrical clamping head (401) movably passes through the through hole (302).

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