Pipeline connecting device convenient to disassemble and assemble quickly

Abstract

The invention relates to the technical field of pipeline connection, in particular to a pipeline connecting device convenient to quickly disassemble and assemble, which comprises a fixed connecting body, two ends of the fixed connecting body are respectively connected with an end cover with an external connecting pipe body in a sealing manner, and the two external connecting pipe bodies are in threaded connection with external threaded pipe surfaces of two pipelines to be connected; two sliding covers with inner connecting pipe bodies are connected in the fixed connecting body in a sealed and sliding mode, and the two inner connecting pipe bodies are connected to the inner pipe faces of the two pipelines to be connected in a sealed and inserted mode. And an elastic flow stabilizing component is arranged between the outer sides of the two sliding covers and the inner sides of the two end covers respectively. According to the pipeline connecting device convenient to disassemble and assemble quickly, the two outer connecting pipe bodies and the two inner connecting pipe bodies can be connected with the outer pipe faces and the inner pipe faces of the two pipelines to be connected, the stability after connection is good, and looseness or leakage is not likely to happen.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline connection, and more specifically, to a pipeline connection device that is convenient for quick disassembly and installation. Background Art

[0002] When pipelines are produced, considering the process requirements of processing and the convenience requirements of transportation, there are generally length limitations. However, the length of pipeline laying is not limited. Therefore, pipelines need to be connected when laid and used. Existing pipeline connections are generally made with pipe joints. Pipe joints generally adopt cylindrical pipe sections, with both ends respectively connected to the ends of two pipelines, or inserted into the ends of two pipelines for fixation. The above-mentioned pipeline connection device can play the role of pipeline connection in practical applications. However, the existing connection methods are difficult to effectively resist the force brought by high pressure, and leakage is likely to occur at the connection. Moreover, the size of the flow chamber of the existing pipeline connection device is fixed and cannot be automatically adjusted according to the change of fluid pressure in the pipeline. When the pressure suddenly increases, the fixed-size flow chamber cannot provide enough buffer space, easily causing the pipeline connection to bear excessive pressure and increasing the risk of leakage. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pipeline connection device that is convenient for quick disassembly and installation.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A pipeline connection device that is convenient for quick disassembly and installation, comprising: a fixed connection body, with end caps each having an external connection pipe body hermetically connected to both ends of the fixed connection body, and the two external connection pipe bodies being threadedly connected to the external threaded pipe surfaces of two pipelines to be connected; two sliding caps each having an internal connection pipe body are hermetically and slidably connected inside the fixed connection body, and the two internal connection pipe bodies are hermetically inserted into the inner pipe surfaces of the two pipelines to be connected; an elastic flow stabilizing component is respectively arranged between the outer sides of the two sliding caps and the inner sides of the two end caps.

[0006] Further, the fixed connection body is a square pipe body, and both ends of the fixed connection body are hermetically inserted into the square sockets of the two end caps; a transverse connection stud is threadedly connected to each of the four sides of the square socket, and the four transverse connection studs are inserted into the anti-disconnection slots on the four sides of the fixed connection body.

[0007] Further, an external connection top ring is fixedly connected to the inner wall of the external connection pipe body, and an annular seal for hermetically abutting against the pipe orifice of the pipeline to be connected is adhesively bonded in the annular groove of the external connection top ring.

[0008] Further, two first limiting protrusions are oppositely arranged inside the fixed connection body, and the adjacent ends of the two sliding caps are oppositely clamped to the remote ends of the two first limiting protrusions.

[0009] Furthermore, annular V-grooves are provided on both sliding covers, and the open ends of the two annular V-grooves are arranged opposite to each other.

[0010] Furthermore, the elastic flow-stabilizing component includes: a flow-stabilizing compression spring sleeved on the inner pipe body, with both ends of the flow-stabilizing compression spring connected to the sliding cover and the bearing plate respectively. The bearing plate is slidably sealed on the outer wall of the inner pipe body and the inner wall of the fixed connection body; a pressure-bearing airbag is bonded to the side of the bearing plate away from the flow-stabilizing compression spring, and the pressure-bearing airbag is sleeved on the outer wall of the inner pipe body.

[0011] Furthermore, the pressure-bearing airbag is filled and fitted in the pressure-bearing area formed among the bearing plate, the outer wall of the inner pipe body, the inner wall of the fixed connection body and the end cover; the pressure-bearing airbag is communicated with the annular airbag of the annular seal through a conduit fixedly connected in the axial through-hole of the external connection top ring, and an annular rubber ring is bonded on the contact surface between the annular airbag and the pipe orifice of the pipe to be connected.

[0012] Furthermore, two second limiting protrusions are oppositely arranged inside the fixed connection body, and each second limiting protrusion is located between a group of adjacent end covers and the first limiting protrusion; each sliding cover is located between a group of adjacent first limiting protrusions and the second limiting protrusion.

[0013] Furthermore, one end of the inner pipe body inserted into the inner pipe surface of the pipe to be connected is a shovel cutting opening structure with an inner conical ring surface.

[0014] Furthermore, the pipe connection device which is convenient for quick disassembly and installation further includes: a stud anti-disengagement structure; the stud anti-disengagement structure includes: four auxiliary pipes uniformly and circumferentially fixedly connected in the round holes on the four sides of the fixed connection body, and the four auxiliary pipes are perpendicularly fixedly connected in the middle of the four piston pipes; two oppositely arranged piston discs are hermetically and slidably connected in each piston pipe, limiting blocks are fixedly connected to both ends of each piston pipe, and compression springs are connected between the two piston discs and the two limiting blocks; the outer ends of the two piston discs are respectively connected to a square sliding frame slid on the outer side surface of the fixed connection body through a piston shaft, and the middle of the piston shaft is slid on the limiting block; four anti-disengagement baffles are respectively arranged at the departing ends of the two square sliding frames, and the four anti-disengagement baffles of each square sliding frame are arranged in cooperation with the four transverse connecting studs on a square socket.

[0015] As can be seen from the above solution, the beneficial effects of the present invention are:

[0016] A pipe connection device that is convenient for quick disassembly and installation according to the present invention can be connected to the outer pipe surface and inner pipe surface of two pipes to be connected through two outer connection pipe bodies and two inner connection pipe bodies. After connection, the stability is good, and it is not easy to loosen or leak. An elastic flow stabilizing component is respectively arranged between the outer sides of the two sliding covers and the inner sides of the two end covers, so that a flow area that can automatically adjust the size of the flow chamber according to the pressure of the flowing medium is formed between the fixed connection body and the two sliding covers. When the pressure is relatively high, the flowing medium generates pressure on the two sliding covers, causing the two sliding covers to compress the two elastic flow stabilizing components. The volume of the flow area between the fixed connection body and the two sliding covers becomes larger, providing a larger buffer space for the flowing medium. When the pressure is relatively low, the pressure generated by the flowing medium on the two sliding covers decreases, and the two sliding covers reset under the elastic action of the two elastic flow stabilizing components. The volume of the flow area between the fixed connection body and the two sliding covers becomes smaller, making the flowing medium more concentrated, maintaining a certain pressure, and avoiding the normal transportation of the fluid being affected by too low pressure.

[0017] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0019] Figure 1 is a schematic diagram of the pipe connection device provided by the embodiment of the present invention Figure 1 ;

[0020] Figure 2 is a schematic diagram of the pipe connection device provided by the embodiment of the present invention Figure 2 ;

[0021] Figure 3 is a cross-sectional view of the pipe connection device provided by the embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the fixed connection body provided by the embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the outer connection pipe body and the end cover provided by the embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of the inner connection pipe body and the sliding cover provided by the embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of the elastic flow stabilizing component and the annular seal provided by the embodiment of the present invention;

[0026] Figure 8Schematic diagram of the stud anti - detachment structure provided by the embodiment of the present invention;

[0027] Figure 9 Cross - sectional view of the stud anti - detachment structure provided by the embodiment of the present invention;

[0028] Icons: Fixed connection body 1; Outer connecting pipe body 2; End cover 3; Inner connecting pipe body 4; Slide cover 5; Elastic flow - stabilizing component 6; Square socket 7; Horizontal connecting stud 8; Outer connecting top ring 9; Annular seal 10; First limit projection 11; Annular V - groove 12; Flow - stabilizing compression spring 13; Bearing plate 14; Bearing airbag 15; Transfer conduit 16; Second limit projection 17; Inner conical ring surface 18; Stud anti - detachment structure 19; Auxiliary pipe 20; Piston pipe 21; Piston disc 22; Restriction block 23; Compressed spring 24; Piston shaft 25; Square sliding frame 26; Anti - detachment baffle 27. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] It should be understood that the terms such as "having", "comprising", and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0031] Embodiment 1

[0032] Please refer to Figures 1-9 , the present invention provides a pipeline connection device that is convenient for quick disassembly and installation, including: a fixed connection body 1, end covers 3 each with an outer connecting pipe body 2 are hermetically connected to both ends of the fixed connection body 1, and the two outer connecting pipe bodies 2 are thread - connected to the outer threaded pipe surfaces of two pipelines to be connected; two slide covers 5 each with an inner connecting pipe body 4 are hermetically and slidably connected inside the fixed connection body 1, and the two inner connecting pipe bodies 4 are hermetically inserted into the inner pipe surfaces of the two pipelines to be connected; an elastic flow - stabilizing component 6 is respectively arranged between the outer sides of the two slide covers 5 and the inner sides of the two end covers 3.

[0033] The working principle and technical effects of the above - mentioned technical solutions are as follows:

[0034] A pipe connection device that is convenient for quick disassembly and installation. When connecting with two pipes to be connected, control the external threaded pipe surface of the pipe to be connected to be threadedly connected with the external connection pipe body 2. At this time, the internal connection pipe body 4 can be hermetically inserted into the internal pipe surface of the pipe to be connected. The external connection pipe body 2 and the internal connection pipe body 4 are used to connect with the external pipe surface and the internal pipe surface of the pipe to be connected. After connection, the stability is good and it is not easy to loosen or leak. After connecting two pipes, the flowing medium can enter an internal connection pipe body 4 through one pipe, enter the flow area between the fixed connection body 1 and the two sliding covers 5 through this internal connection pipe body 4, and enter the inside of another pipe through another internal connection pipe body 4. An elastic flow stabilizing component 6 is respectively arranged between the outer sides of the two sliding covers 5 and the inner sides of the two end covers 3, so that a flow area that can automatically adjust the size of the flow chamber according to the pressure of the flowing medium is formed between the fixed connection body 1 and the two sliding covers 5. When the pressure is large, the flowing medium generates pressure on the two sliding covers 5, causing the two sliding covers 5 to compress the two elastic flow stabilizing components 6. The volume of the flow area between the fixed connection body 1 and the two sliding covers 5 becomes larger, providing a larger buffer space for the flowing medium. When the pressure is small, the pressure generated by the flowing medium on the two sliding covers 5 decreases, and the two sliding covers 5 reset under the elastic action of the two elastic flow stabilizing components 6. The volume of the flow area between the fixed connection body 1 and the two sliding covers 5 becomes smaller, making the flowing medium more concentrated, maintaining a certain pressure, and avoiding the normal transportation of the fluid being affected by too low pressure.

[0035] Embodiment 2

[0036] Please refer to Figures 1-9 , in a pipe connection device that is convenient for quick disassembly and installation provided by the present invention, the fixed connection body 1 is a square pipe body, and both ends of the fixed connection body 1 are hermetically inserted into the square sockets 7 of the two end covers 3; a transverse connecting stud 8 is threadedly connected to each of the four sides of the square socket 7, and the four transverse connecting studs 8 are inserted into the anti - detachment slots on the four sides of the fixed connection body 1.

[0037] The working principle and technical effects of the above - mentioned technical solution are as follows:

[0038] In a pipe connection device that is convenient for quick disassembly and installation according to the present invention, the fixed connection body 1 is a square pipe body, and both ends thereof can be directly and hermetically inserted into the square sockets 7 of the two end caps 3. The square structural design enables accurate positioning of the fixed connection body 1 and the square socket 7 during the insertion process, restricts the relative rotation between the two, and ensures the directionality and accuracy of the connection. After the initial insertion is completed, four transverse connecting studs 8 are respectively screwed into the threaded structures on the four sides of the square socket 7. The transverse connecting studs 8 will gradually insert into the anti-disengagement slots on the four sides of the fixed connection body 1. As the transverse connecting studs 8 are screwed in, the transverse connecting studs 8 are closely fitted with the anti-disengagement slots, further enhancing the connection stability between the fixed connection body 1 and the end cap 3 and preventing the two from separating during use. When it is necessary to disassemble the pipe connection device, the transverse connecting studs 8 are rotated in the reverse direction to withdraw them from the anti-disengagement slots of the fixed connection body 1. When the transverse connecting studs 8 are completely disengaged from the anti-disengagement slots, the locking between the fixed connection body 1 and the end cap 3 is released. At this time, the fixed connection body 1 can be directly pulled out from the square socket 7 of the end cap 3 to complete the disassembly operation. The cooperation between the square fixed connection body 1 and the square socket 7 enables the correct installation position to be quickly found during installation, eliminating the need for additional angle alignment as in the case of a circular structure, greatly saving the installation time. The reinforcement is achieved by threadedly connecting the transverse connecting studs 8, and the operation is simple and direct. Only a common tool is needed to turn the transverse connecting studs 8 to complete the connection, reducing the requirements for the professional skills of the installation personnel. When maintenance, repair, or component replacement is required in the pipe system, the connection device can be quickly disassembled, reducing the maintenance time and cost. Only by unscrewing the transverse connecting studs 8 can the fixed connection body 1 and the end cap 3 be separated, facilitating inspection and cleaning of the interior.

[0039] Embodiment 3

[0040] Please refer to Figures 1-9 , in a pipe connection device that is convenient for quick disassembly and installation provided by the present invention, an external connection top ring 9 is fixedly connected to the inner wall of the external connection pipe body 2, and an annular seal 10 for hermetically contacting the pipe orifice of the pipe to be connected is adhesively bonded in the annular groove of the external connection top ring 9.

[0041] The working principle and technical effects of the above technical solution are as follows:

[0042] In a pipe connection device that is convenient for quick disassembly and installation according to the present invention, an external connection top ring 9 is fixedly connected to the inner wall of the outer connection pipe body 2. When the outer connection pipe body 2 is connected to the pipe to be connected through threads, as the threads are screwed in, the pipe to be connected will gradually insert into the inner part of the outer connection pipe body 2. When the inner end pipe orifice of the pipe to be connected contacts the external connection top ring 9, the maximum insertion depth can be reached. The external connection top ring 9 plays a role of physical limit, determining the final position of the insertion of the pipe to be connected, preventing damage to the internal structure of the pipe connection device due to over - deep insertion or loose connection due to under - deep insertion; an annular seal 10 is adhesively bonded in the annular groove of the external connection top ring 9. When the pipe orifice of the pipe to be connected contacts the external connection top ring 9, the annular seal 10 will tightly abut against the pipe orifice of the pipe to be connected. The annular seal 10 will undergo elastic deformation when being extruded, filling the tiny gap between the pipe orifice of the pipe to be connected and the external connection top ring 9, preventing the fluid in the pipe from leaking out from the connection part, thereby achieving the sealing effect; by limiting the maximum insertion depth of the pipe to be connected through the external connection top ring 9, it can ensure that the insertion position of the pipe is consistent each time of connection, making the forces on each part of the connection device uniform, improving the stability and reliability of the connection. The setting of the annular seal 10 effectively enhances the sealing performance of the connection part, and the elastic deformation characteristic of the annular seal 10 enables it to adapt to working condition changes such as pipe vibration and thermal expansion and contraction within a certain range, improving the adaptability and stability of the connection device.

[0043] Two first limit protrusions 11 are oppositely arranged inside the fixed connection body 1, and the adjacent ends of the two sliding covers 5 are relatively clamped at the far ends of the two first limit protrusions 11. The two first limit protrusions 11 are used to limit the positions of the adjacent ends of the two sliding covers 5, and limit the minimum size of the flow - through area formed between the fixed connection body 1 and the two sliding covers 5.

[0044] Annular V - grooves 12 are arranged on both of the two sliding covers 5, and the open ends of the two annular V - grooves 12 are oppositely arranged. When the flowing medium flows in the fixed connection body 1 and generates pressure on the two sliding covers 5, the two sliding covers 5 slide away from each other inside the fixed connection body 1, and part of the flowing medium will enter the two oppositely arranged annular V - grooves 12. The special shape of the annular V - grooves 12 can further disperse the pressure brought by the medium, avoiding pressure concentration at a certain point or area of the sliding cover 5, thereby reducing the risk of damage to the sliding cover 5 due to excessive local pressure, and reducing the pressure on the sealing connection between the two sliding covers 5 and the fixed connection body 1, reducing the probability of leakage, and improving the reliability and stability of the entire pipe connection device.

[0045] Embodiment 4

[0046] Please refer to Figures 1-9, in a pipe connection device provided by the present invention that is convenient for quick disassembly and installation, the elastic flow stabilizing component 6 includes: a flow stabilizing compression spring 13 sleeved on the inner pipe body 4, with both ends of the flow stabilizing compression spring 13 connected to the sliding cover 5 and the bearing plate 14 respectively, and the bearing plate 14 is hermetically slid on the outer wall of the inner pipe body 4 and fixedly connected to the inner wall of the body 1; a pressure-bearing airbag 15 is bonded to the side of the bearing plate 14 away from the flow stabilizing compression spring 13, and the pressure-bearing airbag 15 is sleeved on the outer wall of the inner pipe body 4. The pressure-bearing airbag 15 is filled and fitted in the pressure-bearing area formed among the bearing plate 14, the outer wall of the inner pipe body 4, the inner wall of the fixed connection body 1 and the end cover 3; the pressure-bearing airbag 15 is communicated with the annular airbag of the annular seal 10 through a conduit 16 fixedly connected in the axial through hole of the external top ring 9, and an annular rubber ring is bonded to the contact surface between the annular airbag and the pipe orifice of the pipe to be connected; the annular airbag is bonded in the annular groove.

[0047] The working principle and technical effects of the above technical solution are as follows:

[0048] In a pipe connection device provided by the present invention that is convenient for quick disassembly and installation, when the two sliding covers 5 move away from each other under the pressure of the flowing medium, thereby compressing the two elastic flow stabilizing components 6, the sliding cover 5 first compresses the flow stabilizing compression spring 13, and the flow stabilizing compression spring 13 plays an elastic buffering role. When the flow stabilizing compression spring 13 is compressed to a preset amplitude, the sliding cover 5 drives the bearing plate 14 to squeeze the pressure-bearing airbag 15 through the flow stabilizing compression spring 13, so that the pressure-bearing airbag 15 is tightly filled in the pressure-bearing area formed among the bearing plate 14, the outer wall of the inner pipe body 4, the inner wall of the fixed connection body 1 and the end cover 3. When the pressure reaches the preset amplitude, part of the gas in the pressure-bearing airbag 15 can be pressed into the annular airbag of the annular seal 10 through the conduit 16. At this time, the annular airbag expands, making the annular rubber ring fit more tightly at the pipe orifice of the pipe to be connected. The air in the pressure-bearing airbag 15 and the annular airbag is compressed to a certain extent, and the sealing effect is good. It can not only prevent leakage at the joint between the annular rubber ring and the pipe orifice of the pipe to be connected, but also prevent leakage at the joint between the fixed connection body 1 and the end cover 3; in addition, the pressure-bearing airbag 15 is sleeved on the outer wall of the inner pipe body 4. When the pressure-bearing airbag 15 is squeezed and deformed, the pressure-bearing airbag 15 can also closely adhere to the outer wall of the inner pipe body 4, so that the sliding movement of the inner pipe body 4 is subject to a certain resistance, further playing a role in pressure buffering and realizing automatic adjustment of different buffering intensities under different pressure actions.

[0049] Two second limiting protrusions 17 are oppositely arranged inside the fixed connector 1, and each second limiting protrusion 17 is located between a group of adjacent end caps 3 and the first limiting protrusion 11; each sliding cover 5 is located between a group of adjacent first limiting protrusions 11 and second limiting protrusions 17. The two second limiting protrusions 17 are used to limit the maximum position of the two sliding covers 5 sliding outward, preventing the two sliding covers 5 from continuously sliding outward and bursting the two pressure-bearing air bags 15; the pressure-bearing air bags 15 usually play important roles such as buffering pressure and adjusting volume in the pipeline connection device. If the sliding cover 5 continuously slides outward, it may excessively squeeze the pressure-bearing air bag 15, resulting in the rupture of the air bag. The setting of the second limiting protrusion 17 clearly defines the maximum position of the sliding cover 5 sliding outward, avoiding the sliding cover 5 applying excessive pressure to the pressure-bearing air bag 15, thereby effectively preventing the pressure-bearing air bag 15 from being burst, ensuring the normal operation of the entire pipeline connection device, and reducing the failures and maintenance costs caused by the damage of the air bag. The second limiting protrusion 17 ensures that the sliding range of the sliding cover 5 is within a reasonable range, enabling the pressure-bearing air bag 15 to work normally within its designed elastic range, so as to ensure that the device can stably adjust the pressure and volume according to the pressure change in the pipeline and maintain the stable performance of the device.

[0050] One end of the inner connecting pipe body 4 inserted into the inner pipe surface of the pipeline to be connected is a shovel cutting opening structure with an inner conical ring surface 18. During the long-term use of the pipeline, dirt will gradually accumulate on its inner wall. One end of the inner connecting pipe body 4 inserted into the pipeline to be connected adopts a shovel cutting opening structure with an inner conical ring surface 18. When the inner connecting pipe body 4 slides on the inner pipe surface of the pipeline under different pressures, the inner conical ring surface 18 can scrape the dirt on the inner pipe surface of the pipeline, effectively preventing the dirt from accumulating at the connection between the pipeline and the inner connecting pipe body 4, keeping the inner wall of the pipeline clean, and maintaining the smoothness of the pipeline. The traditional cleaning of pipeline interfaces usually requires manual operation regularly, consuming a large amount of manpower, material resources and time. The present invention can synchronously clean during the normal operation of the pipeline, reducing the frequency and workload of manual cleaning, reducing the maintenance cost of the pipeline system. Moreover, the dirt on the inner wall of the pipeline connection will reduce the inner diameter of the pipeline, increase the flow resistance of the fluid, and reduce the conveying efficiency of the pipeline. After the inner conical ring surface 18 scrapes the dirt, the original inner diameter of the pipeline is restored, enabling the fluid to flow more smoothly, reducing energy loss, and improving the conveying capacity and efficiency of the pipeline.

[0051] Embodiment 5

[0052] Please refer to Figures 1-9, in a pipe connection device provided by the present invention that is convenient for quick disassembly and installation, the pipe connection device that is convenient for quick disassembly and installation further includes: a stud anti-loosening structure 19; the stud anti-loosening structure 19 includes: four auxiliary pipes 20 fixedly connected around the inner sides of the circular holes on the four sides of the fixed connection body 1, and the four auxiliary pipes 20 are vertically fixedly connected in the middle of four piston pipes 21; two relatively arranged piston disks 22 are hermetically and slidably connected in each piston pipe 21, the two piston disks 22 are located on both sides of the auxiliary pipe 20, and limit blocks 23 are fixedly connected to both ends of each piston pipe 21, and the two piston disks 22 and the two limit blocks 23 are connected by compression springs 24; the outer ends of the two piston disks 22 are respectively connected to a square sliding frame 26 slid on the outer side surface of the fixed connection body 1 through a piston shaft 25, and the middle of the piston shaft 25 is slid on the limit block 23; four anti-loosening baffles 27 are respectively arranged at the opposite ends of the two square sliding frames 26, and the four anti-loosening baffles 27 of each square sliding frame 26 are arranged in cooperation with the four transverse connecting studs 8 on a square socket 7.

[0053] The working principle and technical effects of the above technical solution are as follows:

[0054] In a pipe connection device provided by the present invention that is convenient for quick disassembly and installation, after connecting two pipes and when not used for transporting the flowing medium, the compression spring 24 is in an uncompressed state, and the four anti-loosening baffles 27 of each square sliding frame 26 are all located inside the four transverse connecting studs 8 and do not shield the transverse connecting studs 8; when transporting the flowing medium, the flowing medium entering the fixed connection body 1 can enter the four piston pipes 21 through the four auxiliary pipes 20, and the flowing medium entering each piston pipe 21 will generate pressure on the two piston disks 22 on both sides, causing the two piston disks 22 to move away from each other in the piston pipe 21. At this time, the two piston disks 22 compress the two compression springs 24 and drive the two piston shafts 25 to slide outward on the two limit blocks 23. The piston shafts 25 drive the square sliding frame 26 to slide on the outer side surface of the fixed connection body 1 towards the direction of the transverse connecting studs 8, and drive the anti-loosening baffles 27 to shield the outside of the transverse connecting studs 8, so that the transverse connecting studs 8 in the working state cannot rotate, preventing workers from misoperating and causing looseness between the fixed connection body 1 and the end cover 3, and also preventing the transverse connecting studs 8 from loosening due to vibration, which is beneficial to ensuring the stable operation of the present invention. When the medium flow stops, the piston disks 22 reset under the elastic force of the compression spring 24, and the anti-loosening baffles 27 release the shielding of the transverse connecting studs 8, and maintenance and repair operations can be carried out; in addition, the end of the anti-loosening baffle 27 close to the transverse connecting stud 8 is provided with an inclined surface. When the anti-loosening baffle 27 approaches the transverse connecting stud 8, the inclined surface first contacts the transverse connecting stud 8, and then the plane of the anti-loosening baffle 27 contacts the transverse connecting stud 8, ensuring the stability of the shielding and preventing obstacles between the two.

[0055] In the description of the present invention, 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", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0056] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] Although the embodiments of the present invention have been disclosed as above, they are not limited to only the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. A pipe connection device that is convenient for quick disassembly and installation, characterized in that, Including: A fixed connector, with end caps each having an external connecting pipe body sealed and connected to both ends of the fixed connector respectively, and the two external connecting pipe bodies being threadedly connected to the external threaded pipe surfaces of two pipes to be connected; two sliding covers each having an internal connecting pipe body are hermetically and slidably connected inside the fixed connector, and the two internal connecting pipe bodies are hermetically inserted into the inner pipe surfaces of the two pipes to be connected; an elastic flow stabilizing component is respectively arranged between the outer sides of the two sliding covers and the inner sides of the two end caps.

2. The pipe connection device according to claim 1, which is convenient for quick disassembly and installation, is characterized in that, The fixed connector is a square pipe body, and both ends of the fixed connector are hermetically inserted into the square sockets of the two end caps; a transverse connecting stud is threadedly connected to each of the four sides of the square socket, and the four transverse connecting studs are inserted into the anti - detachment slots on the four sides of the fixed connector.

3. The pipeline connection device according to claim 2, which is convenient for quick disassembly and installation, is characterized in that, An external connecting top ring is fixedly connected to the inner wall of the external connecting pipe body, and an annular sealing member for hermetically abutting against the pipe orifice of the pipe to be connected is adhesively bonded in the annular groove of the external connecting top ring.

4. A pipeline connection device that is convenient for quick disassembly and installation according to claim 3, characterized in that, Two first limiting protrusions are oppositely arranged inside the fixed connector, and the adjacent ends of the two sliding covers are relatively clamped to the remote ends of the two first limiting protrusions.

5. The pipe connection device according to claim 4, which is characterized in that An annular V - groove is arranged on each of the two sliding covers, and the open ends of the two annular V - grooves are oppositely arranged.

6. The pipe connection device according to claim 4, which is convenient for quick disassembly and installation, is characterized in that, The elastic flow stabilizing component includes: a flow stabilizing compression spring sleeved on the internal connecting pipe body, with both ends of the flow stabilizing compression spring connected to the sliding cover and the bearing plate respectively, and the bearing plate being hermetically slid on the outer wall of the internal connecting pipe body and the inner wall of the fixed connector; a pressure - bearing airbag is adhesively bonded to one side of the bearing plate away from the flow stabilizing compression spring, and the pressure - bearing airbag is sleeved on the outer wall of the internal connecting pipe body.

7. A pipeline connection device that is convenient for quick disassembly and installation according to claim 6, characterized in that, The pressure - bearing airbag is filled and fitted in the pressure - bearing area formed among the bearing plate, the outer wall of the internal connecting pipe body, the inner wall of the fixed connector and the end cap; the pressure - bearing airbag is communicated with the annular airbag of the annular sealing member through a transmission pipe fixedly connected in the axial through - hole of the external connecting top ring, and an annular rubber ring is adhesively bonded to the contact surface of the annular airbag with the pipe orifice of the pipe to be connected.

8. A pipe connection device that is convenient for quick disassembly and installation according to claim 7, characterized in that, Two second limiting protrusions are oppositely arranged inside the fixed connector, and each second limiting protrusion is located between a group of adjacent end caps and the first limiting protrusion; each sliding cover is located between a group of adjacent first limiting protrusions and second limiting protrusions.

9. A pipeline connection device that is convenient for quick disassembly and installation according to claim 6, wherein, One end of the internal connecting pipe body inserted into the inner pipe surface of the pipe to be connected has a shovel - cut structure with an internal conical ring surface.

10. A pipeline connection device that is convenient for quick disassembly and installation according to claim 6, characterized in that, Also including: A stud anti - detachment structure; the stud anti - detachment structure includes: four auxiliary pipes uniformly and circumferentially fixedly connected in the circular holes on the four sides of the fixed connector, and the four auxiliary pipes are vertically fixedly connected in the middle of the four piston pipes; two relatively arranged piston disks are hermetically and slidably connected in each piston pipe, and limiting blocks are fixedly connected to both ends of each piston pipe, and a compression spring is connected between the two piston disks and the two limiting blocks; the outer ends of the two piston disks are respectively connected to a square sliding frame slid on the outer side surface of the fixed connector through a piston shaft, and the middle of the piston shaft is slid on the limiting block; four anti - detachment baffles are respectively arranged at the opposite ends of the two square sliding frames, and the four anti - detachment baffles of each square sliding frame are arranged in cooperation with the four transverse connecting studs on a square socket.

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