Anti-falling structure of buckling and pressing pipe joint and assembly process

Abstract

The invention provides a buckling-pressing pipe joint anti-falling structure and an assembling technology, and relates to the technical field of buckling-pressing pipe connectors, the buckling-pressing pipe joint anti-falling structure comprises a pipe joint body and a stabilizing pipe, the pipe joint body comprises an outer sleeve nut, a neck bush and a crimping sleeve, one end of the neck bush is arranged in the outer sleeve nut, and the other end of the neck bush is arranged in the crimping sleeve; the pipe body is arranged between the neck bush and the crimping sleeve, the stabilizing pipe is connected with the outside of the jacket nut through the mounting assembly, a mounting ring is arranged in the stabilizing pipe, an annular air bag is arranged on the inner circle of the mounting ring, and the inner wall of the annular air bag makes contact with the outer wall of the pipe body. According to the invention, when the pipe joint body is subjected to transverse vibration perpendicular to the axial direction of the pipe body, the annular air bag is elastically deformed due to extrusion, so that vibration energy is absorbed, vibration energy transmitted to one end, far away from the outer sleeve nut, of the crimping sleeve is reduced, the stress concentration degree is reduced, and fatigue cracks of the crimping sleeve are inhibited; the service life of the whole buckling pipe joint is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of buckling pipe joint, in particular to a buckling pipe joint anti-falling structure and an assembling process. BACKGROUND

[0002] The buckling pipe joint is a connecting piece for connecting the hose and the hard pipe or other pipe fittings in the hydraulic, pneumatic and other pipeline systems, which realizes reliable sealing and stable connection by specific process to make the joint and the hose tightly combined. In actual application, the buckling pipe joint is widely used in the hydraulic and pneumatic pipeline systems in the fields of engineering machinery, automobile manufacturing, aerospace, agricultural machinery and the like.

[0003] A buckling hose joint anti-falling structure is disclosed in Chinese patent with the authorized announcement number CN109578728B, which comprises a sleeve nut, an inner bushing, a compression sleeve, and a hose. The inner bushing of the structure has a compression sleeve positioning surface, an anti-falling groove, and an annular compression groove, and the compression sleeve has an anti-falling stop edge and a spiral groove-shaped compression groove. The spiral groove-shaped compression groove of the compression sleeve solves the problem of low compression rate caused by misalignment of the compression grooves of the inner bushing and the compression sleeve during production. The anti-falling groove of the inner bushing cooperates with the anti-falling stop edge of the compression sleeve to prevent the compression sleeve from falling off with the liquid cooling hose, thereby increasing the anti-falling ability of the liquid cooling hose. In addition, the spiral groove-shaped compression groove of the compression sleeve improves the compression process of the liquid cooling hose joint and solves the problem of uncontrollable depth of the ring groove between the inner bushing and the compression sleeve. The liquid cooling hose assembly with the structure has the advantages of reliable hose compression and strong anti-falling ability, thereby ensuring the working reliability of the liquid cooling hose.

[0004] However, in actual working conditions, the buckling pipe joint is often used in complex vibration environments such as hydraulic transmission systems, and the buckling pipe joint continuously bears transverse vibration perpendicular to the axial direction of the pipe body. In this process, vibration energy is likely to form significant stress concentration at the end of the compression sleeve away from the sleeve nut, so that the root of the compression sleeve is subjected to alternating shear stress for a long time, thereby generating fatigue cracks in the compression sleeve. With the increase of vibration cycle number, the cracks continuously expand and extend, eventually leading to the fracture failure of the compression sleeve, which greatly shortens the service life of the buckling pipe joint. SUMMARY

[0005] The present application provides a buckling pipe joint anti-falling structure and an assembling process to solve the technical problem of cracks easily occurring at the end of the compression sleeve away from the sleeve nut.

[0006] To solve the above technical problems, the application discloses a buckling pipe joint anti-falling structure, which comprises a pipe joint body and a stabilizing pipe.

[0007] Preferably, the mounting assembly comprises an annular shell arranged outside the stabilizing pipe, a worm gear and a first bevel gear arranged in the annular shell, the worm gear being connected to one side of the first bevel gear, the worm gear and the first bevel gear being rotatably connected to the outer wall of the stabilizing pipe, a driving shell being arranged outside the annular shell, one end of the driving shell being in communication with the inside of the annular shell, a worm being rotatably arranged in the driving shell, the worm being engaged with the worm gear, one end of the worm extending to the outside of the driving shell and being provided with a knob, a plurality of first screws being arranged in the annular shell, one end of each of the first screws being rotatably connected to the inner wall of the annular shell, a second bevel gear being arranged on each of the first screws, the second bevel gears being engaged with the first bevel gear, and a connecting assembly being arranged at one end of each of the first screws close to the sleeve nut.

[0008] Preferably, the plurality of first screws are arranged in an annular array about the center of the annular shell.

[0009] Preferably, the connecting assembly comprises a sliding hole arranged in the side wall of the stabilizing pipe, and a pressing sleeve slidably arranged in the sliding hole, the inner wall of the pressing sleeve being threadedly connected to the outer wall of the first screw.

[0010] Preferably, a pressing block is arranged at one end of the pressing sleeve close to the stabilizing pipe.

[0011] Preferably, the pressing block is made of an elastic material, and a cavity is arranged in the pressing block.

[0012] Preferably, a connecting pipe is arranged between the pressing block and the annular air bag, one end of the connecting pipe being in communication with the cavity, and the other end of the connecting pipe being in communication with the inside of the annular air bag.

[0013] Preferably, a fixing ring is arranged at the side of the worm gear away from the first bevel gear, a fixing assembly is arranged in the side wall of the annular shell, the fixing assembly comprises a threaded hole arranged in the side wall of the annular shell, a bolt arranged in the threaded hole, one end of the bolt extending to the inside of the annular shell and abutting against a contact plate, the side of the contact plate away from the bolt being in contact with the outer wall of the fixing ring, and the side of the contact plate away from the fixing ring being connected to the inner wall of the annular shell through a plurality of spring rods.

[0014] Preferably, a plurality of anti-slip patterns are arranged on the outer wall of the fixing ring.

[0015] An assembling process for assembling the buckling pipe joint anti-falling structure comprises the following steps:

[0016] Inserting the inner bushing one end into and through the outer sleeve nut;

[0017] Setting the stabilizing tube on the outside of the pipe body;

[0018] Inserting one end of the pipe body into the crimping sleeve;

[0019] Pressing the inner bushing into the pipe body away from the one end of the outer sleeve nut;

[0020] Pressing the crimping sleeve;

[0021] Adjusting the position of the stabilizing tube so that the annular air bag contacts the one end of the crimping sleeve away from the outer sleeve nut.

[0022] The technical scheme of the present application has the following advantages: the present application provides a buckling pipe joint anti-falling structure and assembling process, relates to the technical field of buckling pipe joints, and comprises a pipe joint body and a stabilizing tube. The pipe joint body comprises an outer sleeve nut, an inner bushing, and a crimping sleeve. One end of the inner bushing is arranged in the outer sleeve nut, and the other end of the inner bushing is arranged in the crimping sleeve. A pipe body is arranged between the inner bushing and the crimping sleeve. The stabilizing tube is connected to the outside of the outer sleeve nut through a mounting assembly. An installation ring is arranged in the stabilizing tube. An annular air bag is arranged in the inner ring of the installation ring. The inner wall of the annular air bag is in contact with the outer wall of the pipe body. The side of the annular air bag close to the crimping sleeve is in contact with the one end of the crimping sleeve away from the outer sleeve nut. In the present application, when the pipe joint body is subjected to transverse vibration perpendicular to the axial direction of the pipe body, the annular air bag is elastically deformed due to extrusion, thereby absorbing vibration energy, reducing the vibration energy transmitted to the one end of the crimping sleeve away from the outer sleeve nut, reducing the degree of stress concentration, inhibiting the generation of fatigue cracks of the crimping sleeve, and prolonging the service life of the buckling pipe joint as a whole.

[0023] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by means of the instrumentalities particularly pointed out in the written description and claims hereof.

[0024] The technical scheme of the present application will be further described below through the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate embodiments of the present application and explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0026] Figure 1 It is a whole structure schematic diagram of the buckling pipe joint anti-falling structure of the present application;

[0027] Figure 2 It is a structure enlarged view of A in the present application Figure 1 ​

[0028] Figure 3 For the invention Figure 1 Enlarged view of the structure at B in the invention;

[0029] Figure 4 For the invention Figure 1 Enlarged view of the structure at C in the invention;

[0030] Figure 5 For the invention Figure 1 Enlarged view of the structure at D in the invention;

[0031] Figure 6 For the invention Figure 1 Partial structural sectional view at E-E in the invention;

[0032] Figure 7 For the invention Figure 6 Enlarged view of the structure at F in the invention.

[0033] In the figure: 1, stabilizing tube; 2, outer sleeve nut; 3, inner sleeve; 4, crimping sleeve; 5, tube body; 6, mounting ring; 7, annular air bag; 8, annular shell; 9, worm gear; 10, first bevel gear; 11, drive shell; 12, worm; 13, first screw; 14, second bevel gear; 15, pressing sleeve; 16, pressing block; 17, cavity; 18, connecting tube; 19, fixing ring; 20, bolt; 21, contact plate; 22, spring rod; 23, fixing block; 24, stud screw; 25, hand wheel; 26, sliding block; 27, long strip through hole; 28, adjusting rod; 29, mounting shell; 30, mounting frame; 31, first spring; 32, second spring; 33, rotating shaft; 34, anti-skid column; 35, ratchet wheel; 36, pawl. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present application will be described herein below with reference to the drawings; it should be understood, however, that the described preferred embodiments are intended to be illustrative only and are not intended to limit the present application.

[0035] In addition, the descriptions such as "first", "second" and the like in the present application are merely for the purpose of description and do not mean to specially indicate the order or sequence, nor to limit the present application, which are merely to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0036] Example 1:

[0037] The embodiment of the present invention provides a structure for preventing a crimped pipe joint from falling off, such as Figure 1 As shown, it includes: a pipe joint body and a stabilizing tube 1, the pipe joint body includes an outer sleeve nut 2, an inner sleeve 3, and a crimping sleeve 4, one end of the inner sleeve 3 is arranged in the outer sleeve nut 2, and the other end of the inner sleeve 3 is arranged in the crimping sleeve 4, the tube body 5 is arranged between the inner sleeve 3 and the crimping sleeve 4, the stabilizing tube 1 is connected to the outside of the outer sleeve nut 2 through an installation component, a mounting ring 6 is arranged in the stabilizing tube 1, and an annular airbag 7 is arranged on the inner ring of the mounting ring 6, the inner wall of the annular airbag 7 is in contact with the outer wall of the tube body 5, and the side of the annular airbag 7 close to the crimping sleeve 4 is in contact with the end of the crimping sleeve 4 away from the outer sleeve nut 2.

[0038] The working principle and beneficial effects of the above technical scheme are as follows: in actual work, when the pipe joint body is subjected to lateral vibration perpendicular to the axial direction of the pipe body 5, the vibration energy will cause the pipe body 5 to displace and thus squeeze the annular airbag 7. The annular airbag 7 is made of elastic material and is installed between the stabilizing tube 1 and the pipe body 5 through the mounting ring 6. When the annular airbag 7 is squeezed by the pipe body 5, it will undergo elastic deformation, thereby absorbing the vibration energy and converting the impact force generated by the vibration into the elastic potential energy of the annular airbag 7 itself, thereby weakening the ability of the vibration to be transmitted to the end of the crimping sleeve 4 away from the outer sleeve nut 2, reducing the stress concentration, and inhibiting the occurrence of fatigue cracks in the crimping sleeve 4. Even under long-term vibration conditions, the crack propagation rate can be delayed, thereby extending the overall service life of the crimping pipe joint and improving the stability and reliability of the pipe joint body in the pipeline system. The stabilizing tube 1 is installed on the outside of the outer sleeve nut 2 through the mounting assembly. When the pipe joint body is damaged, the stabilizing tube 1 can be removed from the pipe joint body, which is convenient for the reuse of the stabilizing tube 1 and saves costs.

[0039] Example 2:

[0040] On the basis of the above embodiment 1, Figure 1 、 Figure 2 As shown, the mounting assembly includes an annular shell 8, which is arranged on the outside of the stabilizing tube 1, and a worm gear 9 and a first bevel gear 10 are arranged in the annular shell 8, one side of the worm gear 9 is connected to one side of the first bevel gear 10, and the worm gear 9 and the first bevel gear 10 are respectively rotatably connected to the outer wall of the stabilizing tube 1, a driving shell 11 is arranged on the outside of the annular shell 8, one end of the driving shell 11 is communicated with the inside of the annular shell 8, a worm 12 is rotatably arranged in the driving shell 11, the worm 12 is meshed with the worm gear 9, one end of the worm 12 extends to the outside of the driving shell 11 and is provided with a knob, a plurality of first screws 13 are arranged in the annular shell 8, one end of the first screw 13 is rotatably connected to the inner wall of the annular shell 8, a second bevel gear 14 is arranged on the first screw 13, the second bevel gear 14 is meshed with the first bevel gear 10, and a connecting assembly is provided at one end of the first screw 13 near the outer sleeve nut 2;

[0041] The first plurality of screw rods 13 are arranged in a ring array about the center of the ring-shaped shell 8.

[0042] The connecting assembly comprises a sliding hole arranged in the side wall of the stabilizing tube 1, and a pressing sleeve 15 is slidingly arranged in the sliding hole, and the inner wall of the pressing sleeve 15 is threadedly connected with the outer wall of the first screw rod 13.

[0043] The pressing sleeve 15 is provided with a pressing block 16 close to one end of the stabilizing tube 1.

[0044] The working principle and beneficial effects of the above technical scheme are as follows: when the ring-shaped air bag 7 is in contact with the pressing sleeve 4 away from the one end of the outer sleeve nut 2, the knob is rotated, the rotation of the knob drives the rotation of the worm 12, the rotation of the worm 12 drives the rotation of the worm wheel 9, the rotation of the worm wheel 9 drives the rotation of the first bevel gear 10, the first bevel gear 10 drives the rotation of the first screw rod 13 in the ring-shaped shell 8 through the meshing with the second bevel gear 14, the pressing sleeve 15 is arranged close to one end of the outer sleeve nut 2, the pressing sleeve 15 is slidingly connected with the inner wall of the sliding hole, the first screw rod 13 drives the pressing sleeve 15 to slide in the sliding hole towards the outer sleeve nut 2 through the thread transmission when the first screw rod 13 rotates, the pressing sleeve 15 drives the pressing block 16 to move, until the pressing block 16 is in contact with the outer sleeve nut 2, the first screw rod 13 is provided with a plurality of pressing blocks 16 in contact with the outer wall of the outer sleeve nut 2, so as to fix the stabilizing tube 1 outside the outer sleeve nut 2, and under the common positioning action of the mounting ring 6 and the ring-shaped air bag 7, the stabilizing tube 1 wraps the pipe joint body as a whole, and limits the pipe joint body in a stable space, so as to reduce the vibration amplitude of the pipe joint body as a whole, improve the stability of the pipe joint body, the ring-shaped air bag 7 can position the installation of the stabilizing tube 1, improve the consistency and accuracy of the installation position of the stabilizing tube 1, the pressing block 16 is in close contact with the outer wall of the outer sleeve nut 2, so as to prevent the position of the stabilizing tube 1 from changing, and improve the stability of the stabilizing tube 1.

[0045] Embodiment 3:

[0046] On the basis of embodiment 2, as shown in Figures 1-3 The pressing block 16 is made of elastic material, and a cavity 17 is arranged in the pressing block 16.

[0047] A connecting pipe 18 is arranged between the pressing block 16 and the ring-shaped air bag 7, one end of the connecting pipe 18 is in communication with the cavity 17, and the other end of the connecting pipe 18 is in communication with the inside of the ring-shaped air bag 7.

[0048] The working principle and beneficial effects of the above technical solution are that the pressing block 16 is made of elastic anti-skid material, which can increase the friction between the pressing block 16 and the outer sleeve nut 2, prevent the outer sleeve nut 2 from loosening, and improve the reliability of the connection between the outer sleeve nut 2 and the outside. When the pressing block 16 contacts the outer sleeve nut 2, rotating the knob can make the pressing sleeve 15 move further towards the outer sleeve nut 2, and the pressing sleeve 15 can extrude the pressing block 16. The cavity 17 of the pressing block 16 stores gas. When the pressing block 16 is extruded by the pressing sleeve 15, the gas in the cavity 17 of the pressing block 16 enters the inside of the annular air bag 7 through the connecting pipe 18, so that the annular air bag 7 further expands. Not only can it strengthen the extrusion of the annular air bag 7 on the outer wall of the pipe body 5 and the end of the compression sleeve 4, but also more effectively absorb energy and disperse stress during vibration. It can also adaptively adjust the degree of deformation according to the shape of the end of the compression sleeve 4, thereby sealing the end of the compression sleeve 4, improving the sealing performance of the end of the compression sleeve 4, preventing fluid leakage in the pipeline system, and strengthening the extrusion of the annular air bag 7 on the outer wall of the pipe body 5 and the extrusion of the pressing block 16 on the outer sleeve nut 2. It can strengthen the connection between the pipe body 5 and the compression sleeve 4, reduce the risk of the pipe body 5 falling off due to vibration, improve the anti-falling performance of the anti-falling structure, and further improve the reliability of the pipe joint body.

[0049] Embodiment 4:

[0050] Based on Embodiment 2 or 3, as shown in Figure 4 The fixed ring 19 is arranged on the side of the worm wheel 9 away from the first bevel gear 10, the fixed assembly is arranged on the side wall of the annular shell 8, the fixed assembly comprises a threaded hole, the threaded hole is arranged on the side wall of the annular shell 8, a bolt 20 is arranged in the threaded hole, one end of the bolt 20 extends into the inside of the annular shell 8 and abuts against a contact plate 21, the side of the contact plate 21 away from the bolt 20 is in contact with the outer wall of the fixed ring 19, and the side of the contact plate 21 away from the fixed ring 19 is connected to the inner wall of the annular shell 8 through a plurality of spring rods 22.

[0051] A plurality of anti-skid patterns are arranged on the outer wall of the fixed ring 19.

[0052] The working principle and beneficial effects of the above technical solution are that when the pressing block 16 is in close contact with the outer sleeve nut 2, the bolt 20 is rotated in the threaded hole towards the fixed ring 19, the end of the bolt 20 drives the contact plate 21 to move towards the fixed ring 19 until the contact plate 21 contacts the outer wall of the fixed ring 19, thereby fixing the fixed ring 19. The fixed ring 19 is fixedly connected to the side wall of the worm wheel 9, and the worm wheel 9 is also firmly locked in the annular shell 8, thereby limiting the rotation of the worm 12 and preventing the position of the pressing sleeve 15 from changing due to accidental operation, ensuring that the clamping state of the pressing block 16 on the outer sleeve nut 2 and the pressure of the annular air bag 7 on the pipe body 5 remain stable, and further improving the reliability of the anti-falling structure.

[0053] Embodiment 5:

[0054] In any one of embodiments 2-4, as shown in Figure 1 、 Figures 5-7 The front side wall of the stabilizing tube 1 is provided with a fixed block 23, a double-headed screw rod 24 is rotatably arranged in the fixed block 23, a hand wheel 25 is arranged at the upper end of the double-headed screw rod 24, the screw threads of the two ends of the double-headed screw rod 24 are opposite, a sliding block 26 is symmetrically arranged at the two ends of the double-headed screw rod 24, the sliding block 26 is in threaded transmission connection with the outer wall of the double-headed screw rod 24, long strip through holes 27 are symmetrically arranged on the upper and lower sides of the front side wall of the stabilizing tube 1, an adjusting rod 28 is slidably arranged in the long strip through holes 27, one end of the adjusting rod 28 is connected with the sliding block 26, the other end of the adjusting rod 28 extends into the stabilizing tube 1 and is provided with a mounting shell 29, the mounting shell 29 is provided with an opening close to one side of the tube body 5, a mounting frame 30 is arranged in the mounting shell 29, the mounting frame 30 is in n-shaped structure, the left and right sides of the mounting frame 30 are in sliding connection with the inner wall of the mounting shell 29, the side of the mounting frame 30 away from the tube body 5 is connected with the inner wall of the mounting shell 29 through a plurality of first springs 31, a plurality of second springs 32 are respectively arranged on the front and rear sides of the mounting frame 30, one end of the second spring 32 away from the mounting frame 30 is connected with the inner wall of the mounting shell 29, a rotating shaft 33 is arranged in the mounting frame 30, the front and rear ends of the rotating shaft 33 are respectively in rotational connection with the inner walls of the front and rear sides of the mounting frame 30, an anti-skid column 34 is arranged on the rotating shaft 33, the anti-skid column 34 is in contact with the outer wall of the tube body 5, the anti-skid column 34 is in shape adaptation with the outer wall of the tube body 5, a ratchet wheel 35 is arranged on the rotating shaft 33, a pawl 36 is arranged on the inner wall of the mounting frame 30, one end of the pawl 36 is hingedly connected with the inner wall of the mounting frame 30, and a reset spring is arranged between the pawl 36 and the inner wall of the mounting frame 30.

[0055] The working principle and beneficial effects of the above technical solution are as follows: after the stabilizing pipe 1 is installed on the sleeve nut 2 through the mounting assembly, the hand wheel 25 is rotated, the hand wheel 25 drives the double-headed screw rod 24 to rotate, the symmetrically arranged sliding blocks 26 can move in the direction of approaching each other along the double-headed screw rod 24 due to the opposite rotation directions of the threads at the two ends of the double-headed screw rod 24, thereby driving the adjusting rod 28 to slide in the long hole 27, the adjusting rod 28 drives the mounting shell 29 to move in the direction of approaching the pipe body 5, the distance between the two mounting shells 29 is adjusted according to the diameter of the pipe body 5, so that the anti-skid column 34 can be tightly attached to the outer wall of the pipe body 5, the mounting frame 30 is connected with the mounting shell 29 through the first spring 31 and the second spring 32, when the pipe body 5 is displaced due to vibration, the first spring 31 and the second spring 32 are elastically deformed, the first spring 31 and the second spring 32 can absorb the radial vibration energy of the pipe body 5, reduce the vibration amplitude of the pipe body 5, further reduce the vibration energy transmitted to the end of the compression sleeve 4 away from the sleeve nut 2, inhibit the generation of fatigue cracks of the compression sleeve 4, prolong the service life of the whole compression pipe joint, the diameters of the two ends of the anti-skid column 34 are greater than the central diameter of the anti-skid column 34, so that the anti-skid column 34 can adapt to the shape of the pipe body 5 and tightly attach to the outer wall of the pipe body 5; the ratchet wheel 35 on the rotating shaft 33 and the pawl 36 on the inner wall of the mounting frame 30 form a one-way transmission structure, when the pipe body 5 has a tendency to fall outwards, the pipe body 5 drives the anti-skid column 34 to rotate through friction with the anti-skid column 34, the anti-skid column 34 drives the rotating shaft 33 to rotate, the rotating shaft 33 drives the ratchet wheel 35 to rotate, at this time, the pawl 36 can be clamped into the tooth groove of the ratchet wheel 35, thereby preventing the rotating shaft 33 from rotating, preventing the pipe body 5 from sliding to the outside of the compression sleeve 4, enhancing the anti-falling effect, and improving the reliability of the connection between the pipe body 5 and the compression sleeve 4 and the inner liner 3; the distance between the mounting shells 29 can be adjusted through the double-headed screw rod 24, so that the pipe body 5 of different diameters can be adapted, and the applicability is improved.

[0056] Example 6:

[0057] On the basis of any one of examples 1-5, further comprising an assembly process for assembling the anti-falling structure of the compression pipe joint, comprising the following steps:

[0058] Inserting one end of the inner liner 3 into and through the sleeve nut 2;

[0059] Sleeving the stabilizing pipe 1 outside the pipe body 5;

[0060] Inserting one end of the pipe body 5 into the compression sleeve 4;

[0061] Pressing the end of the inner liner 3 away from the sleeve nut 2 into the pipe body 5;

[0062] Compression of the compression sleeve 4;

[0063] Adjusting the position of the stabilizing pipe 1 so that the annular air bag 7 is in contact with the end of the compression sleeve 4 away from the sleeve nut 2.

[0064] The working principle and beneficial effects of the technical solution are as follows: when the anti-falling structure is assembled, the inner sleeve 3 is inserted into and passes through the outer sleeve nut 2; then the stabilizing pipe 1 is sleeved outside the pipe body 5; then one end of the pipe body 5 is inserted into the crimping sleeve 4; and the end of the inner sleeve 3 away from the outer sleeve nut 2 is pressed into the pipe body 5; the crimping sleeve 4 is buckled by using the buckling device, the pipe body 5 is pressed on the inner sleeve 3 by the crimping sleeve 4, and the pipe body 5 is prevented from falling off between the inner sleeve 3 and the crimping sleeve 4; finally, the position of the stabilizing pipe 1 is adjusted so that the annular air bag 7 contacts the end of the crimping sleeve 4 away from the outer sleeve nut 2, and the stabilizing pipe 1 is installed outside the outer sleeve nut 2 by the mounting assembly; when the pipe joint body is subjected to transverse vibration perpendicular to the axial direction of the pipe body 5, the annular air bag 7 is elastically deformed by being pressed by the pipe body 5, thereby absorbing vibration energy and converting the impact force generated by vibration into the elastic potential energy of the annular air bag 7, reducing the stress concentration degree of the end of the crimping sleeve 4 away from the outer sleeve nut 2, and inhibiting the generation of fatigue cracks of the crimping sleeve 4; even under long-term vibration working conditions, the crack propagation speed can be slowed down, thereby prolonging the service life of the buckled pipe joint as a whole and improving the stability and reliability of the pipe joint body in the pipeline system.

[0065] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0066] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] While embodiments of the application have been disclosed in connection with the above specification and drawings this description is not intended to limit the scope of the application and many modifications, enhancements, alternatives, and variations will become apparent to those skilled in the art from this disclosure. Accordingly, it is intended that the application not be limited to the described embodiments, but that it include all variations falling within the scope of the claims, and their equivalents.

Claims

1. A buckle pipe joint anti-falling structure, characterized in that: include: A pipe joint body and a stabilizing tube (1) are provided. The pipe joint body comprises an outer nut (2), an inner sleeve (3), and a crimping sleeve (4). One end of the inner sleeve (3) is arranged in the outer nut (2), and the other end of the inner sleeve (3) is arranged in the crimping sleeve (4). The pipe body (5) is arranged between the inner sleeve (3) and the crimping sleeve (4). The stabilizing tube (1) is connected to the outside of the outer nut (2) through a mounting assembly. A mounting ring (6) is arranged in the stabilizing tube (1). An annular airbag (7) is arranged on the inner ring of the mounting ring (6). The inner wall of the annular airbag (7) contacts the outer wall of the pipe body (5), and the side of the annular airbag (7) close to the crimping sleeve (4) contacts the end of the crimping sleeve (4) away from the outer nut (2).

2. The anti-falling structure of a crimped pipe joint according to claim 1, characterized in that: The stabilizing tube (1) is connected to the outer nut (2) through the mounting assembly. The mounting assembly includes an annular shell (8). The annular shell (8) is arranged outside the stabilizing tube (1). A worm gear (9) and a first bevel gear (10) are arranged inside the annular shell (8). One side of the worm gear (9) is connected to one side of the first bevel gear (10). The worm gear (9) and the first bevel gear (10) are respectively connected to the outer wall of the stabilizing tube (1). A driving shell (11) is arranged outside the annular shell (8). One end of the driving shell (11) is communicated with the inside of the annular shell (8). A worm (12) is rotatably arranged in the housing (11), the worm (12) meshes with the worm wheel (9), one end of the worm (12) extends to the outside of the drive housing (11) and is provided with a knob, a plurality of first screws (13) are arranged in the annular housing (8), one end of the first screw (13) is rotatably connected to the inner wall of the annular housing (8), a second bevel gear (14) is arranged on the first screw (13), the second bevel gear (14) meshes with the first bevel gear (10), and a connecting assembly is provided at one end of the first screw (13) close to the outer nut (2).

3. The anti-falling structure of a crimped pipe joint according to claim 2, characterized in that: A plurality of first screws (13) are distributed in an annular array about the center of the annular shell (8).

4. The anti-falling structure of a crimped pipe joint according to claim 2, characterized in that: The connecting assembly comprises a sliding hole, which is arranged on the side wall of the stabilizing tube (1). A pressing sleeve (15) is slidingly arranged in the sliding hole, and the inner wall of the pressing sleeve (15) is threadedly connected to the outer wall of the first screw rod (13).

5. The anti-falling structure of a crimped pipe joint according to claim 4, characterized in that: A pressing block (16) is provided on the pressing sleeve (15) near one end of the stabilizing tube (1).

6. The anti-falling structure of a crimped pipe joint according to claim 5, characterized in that: The pressing block (16) is made of elastic material, and a cavity (17) is provided in the pressing block (16).

7. The anti-drop structure of a crimped pipe joint according to claim 6, characterized in that: A connecting pipe (18) is provided between the pressing block (16) and the annular airbag (7), one end of the connecting pipe (18) is communicated with the cavity (17), and the other end of the connecting pipe (18) is communicated with the interior of the annular airbag (7).

8. The anti-falling structure of a crimped pipe joint according to claim 2, characterized in that: A fixing ring (19) is provided on the side of the worm gear (9) away from the first bevel gear (10), and a fixing assembly is provided on the side wall of the annular shell (8). The fixing assembly includes a threaded hole, which is provided on the side wall of the annular shell (8). A bolt (20) is provided in the threaded hole. One end of the bolt (20) extends into the interior of the annular shell (8) and abuts against a contact plate (21). The side of the contact plate (21) away from the bolt (20) contacts the outer wall of the fixing ring (19), and the side of the contact plate (21) away from the fixing ring (19) is connected to the inner wall of the annular shell (8) through a plurality of spring rods (22).

9. The anti-falling structure of a crimped pipe joint according to claim 8, characterized in that: The outer wall of the fixing ring (19) is provided with a plurality of anti-skid lines.

10. An assembly process for assembling the anti-falling structure of a crimped pipe joint according to any one of claims 1 to 9, characterized in that: The following steps are involved: Insert one end of the inner sleeve (3) through the outer sleeve nut (2); The stabilizing tube (1) is sleeved on the outside of the tube body (5); Insert one end of the tube body (5) into the crimping sleeve (4); Press the end of the inner sleeve (3) away from the outer sleeve nut (2) into the tube body (5); Buckling the crimping sleeve (4); The position of the stabilizing tube (1) is adjusted so that the annular air bag (7) contacts the end of the crimping sleeve (4) away from the outer sleeve nut (2).

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