Industrial compressed air delivery line

Abstract

The utility model discloses an industrial compressed air conveying pipeline, the utility model discloses a joint mechanism that can splice each other is set up in adjacent pipe body end portion, makes two section pipe body can rely on the cooperation of positioning post and positioning groove and forms automatic positioning after alignment, forms stable pressure tight sealing structure when sealing assembly inserts second connecting disc, not only has promoted the air tightness of junction, also effectively avoided the air leakage hidden danger in high pressure air conveying. The fit component that sets up on first connecting disc and second connecting disc can steady hold tightly pipe body outer wall, makes the interface to keep structure stable under the working condition of pressure, receiving vibration. Besides, the joint mechanism adopts the cooperation mode of rotation push and automatic clamping, need not to help any special tool to complete the quick assembly and disassembly of pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of compressed air transportation, specifically, it relates to an industrial compressed air transportation pipeline. Background Technology

[0002] In industrial production sites, compressed air is a commonly used power source, widely used in automated equipment driving, pneumatic tool air supply, and production line dust removal and purging processes. With the increasing demands for equipment continuity and efficiency in modern industry, compressed air delivery pipelines not only need sufficient pressure resistance but also must meet the requirements of rapid installation, easy maintenance, and reliable sealing. However, in existing technologies, pipeline connections mostly rely on traditional threaded or flanged structures. Threaded connections are prone to loosening under long-term vibration conditions, and the gaskets need to be replaced after aging; while flange connections usually require bolt tightening, which is time-consuming to install and extremely inconvenient to operate in confined spaces. Especially in application scenarios that frequently require rerouting, expansion, or disassembly, traditional connection methods often result in high time costs and a large workload for maintenance.

[0003] To improve pipeline connection efficiency, some equipment uses quick couplings or snap-fit ​​structures. However, these structures are more suitable for small-diameter or low-pressure gas transmission, and are prone to insufficient sealing and loose connections in large-diameter, high-pressure air pipelines. Furthermore, some quick couplings have exposed locking components that may deform upon impact, affecting their reusability.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an industrial compressed air delivery pipeline, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An industrial compressed air delivery pipeline includes: several pipe bodies that can be spliced ​​together, and the ends of two adjacent pipe bodies are threadedly connected by a snap-fit ​​mechanism;

[0008] The snap-fit ​​mechanism includes a first connecting plate and a second connecting plate. A number of positioning posts are fixedly connected in a ring on one side of the first connecting plate, and a number of positioning grooves that are adapted to the positioning posts are opened on one side of the second connecting plate.

[0009] A sealing component that can be inserted into the second connecting plate is provided on one side of the first connecting plate, and after the sealing component is inserted into the second connecting plate, the positioning post is locked in the positioning groove.

[0010] Both the first and second connecting discs have a bonding component fixedly connected to the opposite side of the pipe body.

[0011] Optionally, the bonding assembly includes several arc-shaped plates respectively disposed on one side of the first connecting plate and the second connecting plate. The inner wall of the arc-shaped plate is fixedly connected to a rubber pad that is bonded to the outer surface of the tube. A connecting rod is fixedly connected between the arc-shaped plate and the first connecting plate and the second connecting plate.

[0012] Optionally, the sealing assembly includes a positioning cylinder disposed on one side of the first connecting plate, and an annular groove adapted to the positioning cylinder is provided on one side of the second connecting plate. A plurality of first mounting grooves are provided on the inner wall of the annular groove, and a first sealing ring is installed in the first mounting groove. After the positioning cylinder is inserted into the annular groove, it fits tightly with the first sealing ring.

[0013] Optionally, a slot for the positioning cylinder to slide is provided on one side of the first connecting plate, a second mounting groove is provided on the inner wall of the slot, a second sealing ring is installed inside the second mounting groove, a plurality of through holes are provided on one side of the slot, a sliding rod is slidably connected to and fixedly connected to the positioning cylinder inside the through holes, a mounting cylinder is fixedly connected to one side of the first connecting plate, a connecting ring is threaded on the outer wall of the mounting cylinder, and the connecting ring and the sliding rod are rotatably connected.

[0014] Optionally, a guide groove is provided above the positioning groove, and a locking rod is slidably connected inside the guide groove. A locking groove that matches the locking rod is provided on one side of the positioning post.

[0015] Optionally, a sliding groove is provided above the annular groove, and a positioning hole communicating with the guide groove is provided on one side of the sliding groove. A push rod that can push the locking rod into the locking groove is slidably connected inside the positioning hole, and a connecting plate located in the annular groove is slidably connected inside the sliding groove.

[0016] Optionally, the end of the push rod is a hemispherical structure, and a groove is provided on one side of the lever. A slope that matches the hemispherical structure is provided on one side of the inner wall of the groove.

[0017] Optionally, a threaded cylinder is fixedly connected to one side of both the first connecting plate and the second connecting plate. The outer wall of the threaded cylinder is provided with an external thread, and the inner wall of the tube body is provided with an internal thread that matches the external thread.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0019] This invention utilizes a snap-fit ​​mechanism at the ends of adjacent pipe sections, allowing for automatic positioning of the two sections after alignment via the cooperation of the positioning pin and positioning groove. When the sealing component is inserted into the second connecting disc, a stable compression sealing structure is formed, improving the airtightness of the connection and effectively preventing leakage during high-pressure air transport. The fitting components on the first and second connecting discs firmly grip the outer wall of the pipe, ensuring structural stability under pressure and vibration conditions. Furthermore, this snap-fit ​​mechanism employs a combination of rotary pushing and automatic snap-fit, enabling rapid assembly and disassembly of the pipeline without the need for any special tools.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the two-tube assembly;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the first connecting plate;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the second connecting plate;

[0025] Figure 4 A schematic diagram of the internal three-dimensional structure of the two-tube assembly;

[0026] Figure 5 for Figure 4 Schematic diagram of the structure at point A in the middle;

[0027] Figure 6 for Figure 4 Schematic diagram of the structure at point B.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Pipe body; 2. First connecting plate; 3. Second connecting plate; 4. Positioning post; 5. Positioning groove; 6. Arc plate; 7. Connecting rod; 8. Positioning cylinder; 9. Annular groove; 10. First sealing ring; 11. Groove; 12. Second sealing ring; 13. Sliding rod; 14. Mounting cylinder; 15. Connecting ring; 16. Clamping rod; 17. Sliding groove; 18. Push rod; 19. Positioning plate; 20. Groove; 21. Threaded cylinder.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Please see Figure 1-6 As shown, this embodiment provides an industrial compressed air delivery pipeline, including several pipe bodies 1 that can be spliced ​​together, and the ends of two adjacent pipe bodies 1 are threadedly connected with a snap-fit ​​mechanism.

[0033] The snap-fit ​​mechanism includes a first connecting plate 2 and a second connecting plate 3. A number of positioning posts 4 are fixedly connected in a ring on one side of the first connecting plate 2. A number of positioning grooves 5 that are adapted to the positioning posts 4 are opened on one side of the second connecting plate 3.

[0034] A sealing component that can be inserted into the second connecting plate 3 is provided on one side of the first connecting plate 2, and after the sealing component is inserted into the second connecting plate 3, the positioning post 4 is locked in the positioning groove 5.

[0035] Both the first connecting plate 2 and the second connecting plate 3 have a bonding component fixedly connected to the opposite side of the two sides, which is far apart from each other, and the component is attached to the surface of the tube body 1.

[0036] By setting a connecting disc, positioning pin 4, positioning groove 5, and a complete snap-fit ​​mechanism between adjacent pipe bodies 1, the pipe bodies 1 can automatically complete alignment, limiting, and locking during splicing, avoiding the problem of loosening easily under high pressure conditions in traditional threaded pipelines. The sealing component works in conjunction with the snap-fit ​​structure to achieve reliable sealing while locking, improving the stability during gas transmission.

[0037] In this embodiment, the bonding assembly includes several arc-shaped plates 6 respectively disposed on one side of the first connecting plate 2 and the second connecting plate 3. A rubber pad, which adheres to the outer surface of the tube body 1, is fixedly connected to the inner wall of the arc-shaped plate 6. A connecting rod 7 is fixedly connected between the arc-shaped plate 6, the first connecting plate 2, and the second connecting plate 3. The combined structure of the arc-shaped plate 6 and the rubber pad allows for a tight fit against the outer wall of the tube body 1, providing a larger contact area for the connecting plates, reducing shaking and offset at the connection point, and simultaneously providing cushioning and vibration damping.

[0038] In this embodiment, the sealing assembly includes a positioning cylinder 8 disposed on one side of the first connecting plate 2, and an annular groove 9 adapted to the positioning cylinder 8 on one side of the second connecting plate 3. A plurality of first mounting grooves are formed on the inner wall of the annular groove 9, and a first sealing ring 10 is installed in each of the first mounting grooves. After the positioning cylinder 8 is inserted into the annular groove 9, it fits tightly with the first sealing ring 10. The positioning cylinder 8, after being inserted into the annular groove 9, forms a strong seal with the first sealing ring 10, resisting the risk of leakage of high-pressure gas. The sealing rings arranged at multiple points within the annular groove 9 can provide sealing force in both the axial and radial directions, ensuring uniform force distribution at the connection and preventing seal failure due to misalignment or vibration.

[0039] In this embodiment, a slot 11 for sliding of the positioning cylinder 8 is provided on one side of the first connecting plate 2. A second mounting groove is provided on the inner wall of the slot 11, and a second sealing ring 12 is installed inside the second mounting groove. Several through holes are provided on one side of the slot 11, and a sliding rod 13 is slidably connected to and fixedly connected to the positioning cylinder 8 inside the through holes. An mounting cylinder 14 is fixedly connected to one side of the first connecting plate 2, and a connecting ring 15 is threadedly fitted on the outer wall of the mounting cylinder 14. The connecting ring 15 and the sliding rod 13 are rotatably connected. A positioning ring is fixedly connected to one end of the sliding rod 13, and a guide ring with a T-shaped cross-section is fixedly connected to one end of the positioning ring. An annular groove 9 that matches the guide ring is provided on one side of the connecting ring 15. This structure avoids the sliding rod 13 from being suspended, thereby achieving synchronous sliding with the connecting ring 15.

[0040] The second sealing ring 12 in the slot 11 provides a sliding seal for the positioning cylinder 8, making the insertion and withdrawal process smoother and preventing dust from entering the sliding cavity. The rotational engagement structure between the slide rod 13 and the connecting ring 15 converts the rotational motion into a smooth linear push, which is convenient for manual operation and ensures a stable output of the pushing force.

[0041] In this embodiment, a guide groove is provided above the positioning groove 5, and a locking rod 16 is slidably connected inside the guide groove. A locking groove adapted to the locking rod 16 is provided on one side of the positioning post 4. The sliding cooperation between the guide groove and the locking rod 16 ensures that the locking rod 16 maintains directional movement during locking and releasing, preventing jamming or displacement. The structural cooperation between the locking groove and the locking rod 16 enables reliable fastening of the positioning post 4.

[0042] In this embodiment, a sliding groove 17 is provided above the annular groove 9. A positioning hole communicating with the guide groove is provided on one side of the sliding groove 17. A push rod 18 that can push the locking rod 16 into the locking groove is slidably connected inside the positioning hole. A positioning disk 19 located in the annular groove 9 is slidably connected inside the sliding groove 17, and the push rod 18 and the positioning disk 19 are fixedly connected. A first spring is fixedly connected between one side of the positioning disk 19 and the inner wall of the sliding groove 17. The linkage structure formed by the sliding groove 17, the positioning hole, and the positioning disk 19 can automatically push the push rod 18 when the positioning cylinder 8 is inserted, so that the locking rod 16 smoothly enters the locking groove, and locking can be completed without manual intervention. The first spring always provides a restoring force to the positioning disk 19, so that the locking rod 16 is in a stable position under force, improving the reliability of the locking mechanism in a vibration environment.

[0043] In this embodiment, the end of the push rod 18 is a hemispherical structure, and a groove 20 is provided on one side of the locking rod 16. One side of the inner wall of the groove 20 is provided with a slope that matches the hemispherical structure. A guide block is fixedly connected to one side of the locking rod 16, and a guide block is provided on one side of the guide groove, matching the straight groove. A second spring is fixedly connected between the inner wall of the straight groove and the guide block. The hemispherical design of the end of the push rod 18 matches the slope surface within the groove 20 of the locking rod 16, allowing the locking rod 16 to automatically open during disassembly by retracting the push rod 18, thus smoothly disengaging the locking rod 16 from the groove and avoiding the problem of difficulty in disassembly due to excessive locking.

[0044] In this embodiment, a threaded cylinder 21 is fixedly connected to one side of both the first connecting disc 2 and the second connecting disc 3. The outer wall of the threaded cylinder 21 is provided with external threads, and the inner wall of the tube body 1 is provided with internal threads that are compatible with the external threads. The threaded cylinder 21 is connected to the inner wall of the tube body 1 by threads, which allows the connecting disc and the tube body 1 to form an integral structure, avoiding the problems of thermal deformation or stress concentration caused by welding.

[0045] Working principle: When rapid assembly of tube body 1 is required, first align the ends of two adjacent tube bodies 1, so that the positioning pin 4 on the first connecting plate 2 is inserted into the positioning groove 5 on the second connecting plate 3. At this time, the positioning pin 4 and the positioning groove 5 achieve preliminary angular alignment and limitation.

[0046] Then, the connecting ring 15 on the side of the first connecting plate 2 is rotated. The connecting ring 15 and the mounting cylinder 14 have a threaded fit structure. When the connecting ring 15 is rotated, the connecting ring 15 will generate axial displacement along the direction of the mounting cylinder 14, and drive the positioning cylinder 8 to slide towards the direction of the second connecting plate 3 through the slide rod 13 that is rotatably connected to it, so that the positioning cylinder 8 is gradually inserted into the annular groove 9 of the second connecting plate 3.

[0047] As the positioning cylinder 8 enters the annular groove 9, the outer wall of the positioning cylinder 8 will squeeze the first sealing ring 10 inside the annular groove 9, causing the sealing ring to undergo radial elastic deformation and form a tight fit with the positioning cylinder 8, thereby achieving a sealed connection between the pipe bodies 1. At the same time, the positioning cylinder 8 pushes the positioning disc 19 fixedly connected to it, causing the positioning disc 19 to move along the direction of the slide groove 17 and move closer to the inner wall of the slide groove 17.

[0048] When the positioning plate 19 moves to the limit position, the positioning plate 19 will touch the bottom of the slide groove 17, causing the push rod 18 fixed on the positioning plate 19 to slide out of the groove 20 at the locking rod 16. At this time, the second spring undergoes elastic deformation to push the locking rod 16 into the slot to achieve the final locking of the positioning pin 4.

[0049] Once the locking lever 16 is fully inserted into the slot, the elastic force generated by the second spring's reset will stably press the locking lever 16 into the slot, preventing it from disengaging and achieving automatic locking of the two connecting discs. Simultaneously, the first spring provides a continuous pushing force to the positioning disc 19, ensuring the locking mechanism is in a force-holding state and improving connection reliability.

[0050] When it is necessary to disassemble the tube body 1, first rotate the connecting ring 15 counterclockwise, so that the connecting ring 15 moves in the opposite direction along the thread direction of the mounting cylinder 14, driving the slide rod 13 to retract synchronously, thereby causing the positioning cylinder 8 to gradually exit from the annular groove 9. As the positioning cylinder 8 moves outward, the positioning plate 19 fixed on it returns to its original position away from the inner wall of the slide groove 17 under the action of the first spring, while driving the push rod 18 to retract into the groove 11.

[0051] During the retraction process, the hemispherical end of the push rod 18 slides along the ramp surface provided in the groove 20 of the locking rod 16. Due to the wedge-shaped guiding effect between the hemispherical head and the ramp, the push rod 18 gradually presses against the locking rod 16, causing the locking rod 16 to overcome the elastic force of the second spring and slide in the opposite direction, eventually exiting from the slot on the positioning post 4. As the locking rod 16 disengages from the slot, the original locking mechanism is released, and the rotational and axial limiting states between the two connecting discs are simultaneously eliminated.

[0052] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An industrial compressed air delivery pipeline, characterized in that, include: Several tubes (1) that can be spliced ​​together, and the ends of two adjacent tubes (1) are threaded together with a snap-fit ​​mechanism; The snap-fit ​​mechanism includes a first connecting plate (2) and a second connecting plate (3). A number of positioning posts (4) are fixedly connected in a ring on one side of the first connecting plate (2). A number of positioning grooves (5) that are adapted to the positioning posts (4) are opened on one side of the second connecting plate (3). A sealing component that can be inserted into the second connecting plate (3) is provided on one side of the first connecting plate (2), and after the sealing component is inserted into the second connecting plate (3), the positioning post (4) is locked in the positioning groove (5); Both the first connecting plate (2) and the second connecting plate (3) are fixedly connected to the opposite side of each other, with a bonding component attached to the surface of the tube body (1).

2. The industrial compressed air delivery pipeline according to claim 1, characterized in that, The bonding assembly includes several arc-shaped plates (6) respectively disposed on one side of the first connecting plate (2) and the second connecting plate (3). The inner wall of the arc-shaped plate (6) is fixedly connected to a rubber pad that is bonded to the outer surface of the tube body (1). A connecting rod (7) is fixedly connected between the arc-shaped plate (6), the first connecting plate (2), and the second connecting plate (3).

3. An industrial compressed air delivery pipeline according to claim 2, characterized in that, The sealing assembly includes a positioning cylinder (8) disposed on one side of the first connecting plate (2), and an annular groove (9) adapted to the positioning cylinder (8) is provided on one side of the second connecting plate (3). Several first mounting grooves are provided on the inner wall of the annular groove (9), and a first sealing ring (10) is installed in the first mounting groove. After the positioning cylinder (8) is inserted into the annular groove (9), it fits tightly with the first sealing ring (10).

4. An industrial compressed air delivery pipeline according to claim 3, characterized in that, The first connecting plate (2) has a slot (11) on one side for the positioning cylinder (8) to slide. The inner wall of the slot (11) has a second mounting groove. The second mounting groove is installed inside the second sealing ring (12). The slot (11) has several through holes on one side. The through holes are slidably connected to a slide rod (13) which is fixedly connected to the positioning cylinder (8). The first connecting plate (2) has a mounting cylinder (14) fixedly connected to one side. The outer wall of the mounting cylinder (14) is threaded with a connecting ring (15). The connecting ring (15) and the slide rod (13) are rotatably connected.

5. An industrial compressed air delivery pipeline according to claim 4, characterized in that, A guide groove is provided above the positioning groove (5), and a locking rod (16) is slidably connected inside the guide groove. A locking groove that matches the locking rod (16) is provided on one side of the positioning column (4).

6. An industrial compressed air delivery pipeline according to claim 5, characterized in that, A sliding groove (17) is provided above the annular groove (9). A positioning hole communicating with the guide groove is provided on one side of the sliding groove (17). A push rod (18) that can push the locking rod (16) into the locking groove is slidably connected inside the positioning hole. A positioning disk (19) located in the annular groove (9) is slidably connected inside the sliding groove (17). The push rod (18) is fixedly connected to one side of the positioning disk (19).

7. An industrial compressed air delivery pipeline according to claim 6, characterized in that, The end of the push rod (18) is a hemispherical structure, and a groove (20) is provided on one side of the locking rod (16). A slope that matches the hemispherical structure is provided on one side of the inner wall of the groove (20).

8. An industrial compressed air delivery pipeline according to claim 7, characterized in that, A threaded cylinder (21) is fixedly connected to one side of both the first connecting plate (2) and the second connecting plate (3). The outer wall of the threaded cylinder (21) is provided with an external thread, and the inner wall of the tube body (1) is provided with an internal thread that matches the external thread.

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