Vacuum pipeline connecting piece

Abstract

The utility model discloses a vacuum pipeline connecting piece, which relates to the technical field of pipeline connection, and comprises a first pipeline and a second pipeline, and the outer surface of one end of the first pipeline is fixedly connected with a first fixing ring. Then, a movable sleeve is rotated, a threaded groove in the movable sleeve is matched with an external thread of the pipeline, the movable sleeve gradually gets close to the second fixing ring, in the process, a locking opening of the movable sleeve extrudes an elastic piece to enable the elastic piece to be attached to the outer surface of the second pipeline, and a notch in the elastic piece promotes deformation and enhances wrapping force; friction force is increased, the pipelines are effectively prevented from sliding or loosening, finally, along with complete locking of the movable sleeve, firm and stable connection of the two pipelines is achieved, and sealing performance and reliability of a system are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a vacuum pipeline connector. Background Technology

[0002] A vacuum pipeline is a piping system that maintains a vacuum state internally. Vacuum pipeline connectors can connect two different sections of pipeline to form a continuous vacuum channel. This allows the vacuum to be maintained throughout the system, ensuring its integrity and functionality.

[0003] For example, CN220186152U discloses a cryogenic vacuum pipeline connector, which includes a connecting valve. The outer surfaces of both ends of the connecting valve are provided with sealing devices. The sealing devices include a rectangular hole support, a sealing block and two clamping blocks. A maintenance-friendly device is provided between one side of the rectangular hole support and one end of the connecting valve. A connecting rod is fixedly connected to the outer surface of the clamping blocks, and a threaded rod is fixedly connected to the top of the connecting rod.

[0004] However, in existing technologies, when installing vacuum pipe connectors, they are easily subjected to impacts and collisions from external objects during long-term use. When an external object impacts or collides with a vacuum pipe connector, it first generates a strong instantaneous impact force. This impact force acts directly on the connector, causing the fastening parts of the connector to vibrate violently. If the connector is not installed securely enough or the fastening force is insufficient, it is easy for it to loosen under the action of this impact force. Once the connector loosens, it will damage the sealing performance of the vacuum pipe, leading to gas leakage and affecting the normal operation of the vacuum system. Utility Model Content

[0005] The purpose of this utility model is to solve the problem in the prior art that external object impacts or collisions can cause the connector to loosen or even be damaged, and to propose a vacuum pipe connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a vacuum pipe connector, comprising a first pipe and a second pipe, wherein a first fixing ring is fixedly connected to the outer surface of one end of the first pipe, and a second fixing ring is fixedly connected to the outer surface of one end of the second pipe, and a connecting mechanism is provided between the first pipe and the second pipe, wherein a plurality of locking elements are provided on one side of the connecting mechanism;

[0007] The connecting mechanism includes a movable sleeve and an outer tube. A convex ring is fixedly connected to the outer surface of one end of the outer tube, and a screw is fixedly connected to the outer surface of one side of the convex ring. An external thread is provided on the outer surface of the outer tube, and a plurality of elastic plates are fixedly connected to one end of the outer tube. A notch is provided between two of the elastic plates. A locking port is provided on the inner side of one end of the movable sleeve, and a threaded groove is provided on the inner side of the movable sleeve. The threaded groove is connected to the external thread.

[0008] Preferably, the locking component includes a rotating frame, one end of which is threadedly connected to a threaded rod, and the other end of which is rotatably connected to a movable frame.

[0009] Preferably, the movable frame is fixedly connected to the outer surface of the movable sleeve, and a pressing block is fixedly connected to one end of the threaded rod.

[0010] Preferably, a plug hole is provided on one side of the first fixing ring, and a plug block is fixedly connected to the side wall of the first fixing ring.

[0011] Preferably, the sidewall of the convex ring is provided with an insertion groove, and the outer surface of the screw is threaded with a nut.

[0012] Preferably, the insertion hole is inserted into the screw, and the insertion block is inserted into the insertion slot.

[0013] Preferably, one end of the first pipe extends to the inside of the outer pipe, and one end of the second pipe extends into the inside of the first pipe.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. In this utility model, the initial fixing by the screw and the first fixing ring ensures the alignment of the first pipe and the second pipe, laying the foundation for subsequent operations. Then, by rotating the movable sleeve, the threaded groove inside the movable sleeve engages with the external thread of the pipe, causing the movable sleeve to gradually approach the second fixing ring. During this process, the locking port of the movable sleeve squeezes the elastic plate, making it fit against the outer surface of the second pipe. The notch on the elastic plate promotes deformation and enhances the wrapping force, increasing friction and effectively preventing the pipe from sliding or loosening. Finally, as the movable sleeve is fully locked, the two pipes achieve a firm and stable connection, ensuring the sealing and reliability of the system.

[0016] 2. In this utility model, the precise fit between the plug block and the plug slot ensures a stable connection between the first and second pipes, preventing rotation or displacement of the pipes after connection. As the second fixed ring abuts against the movable sleeve, the connection operation enters a critical stage. Through the operation of the rotating frame and the threaded rod, the extrusion block gradually extrudes the second fixed ring, making it tightly fit against the movable sleeve. This extrusion process significantly enhances the firmness and strength of the pipe connection, ensuring that the two pipes can withstand external interference after connection. The entire process is precisely controlled, ensuring the stability, accuracy, and safety of the connection, and improving the overall stability and operating efficiency of the pipeline system. Attached Figure Description

[0017] Figure 1 This utility model provides a schematic diagram of the overall three-dimensional structure of a vacuum pipe connector;

[0018] Figure 2 This utility model provides a cross-sectional three-dimensional structural schematic diagram of a vacuum pipe connector;

[0019] Figure 3 This utility model provides a three-dimensional structural diagram of a disassembled vacuum pipe connector;

[0020] Figure 4 This utility model provides a three-dimensional structural diagram of a vacuum pipe connector connection mechanism.

[0021] Legend: 1. Connecting mechanism; 11. Movable sleeve; 111. Locking port; 112. Threaded groove; 12. Outer tube; 13. Convex ring; 14. External thread; 15. Elastic plate; 16. Screw; 17. Notch; 18. Insertion groove; 19. Nut; 2. First pipe; 21. First fixing ring; 22. Insertion block; 23. Insertion hole; 3. Second pipe; 31. Second fixing ring; 4. Locking element; 41. Rotating frame; 42. Threaded rod; 43. Pressing block; 44. Movable frame. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 - Figure 3As shown, this utility model provides a vacuum pipe connector, including a first pipe 2 and a second pipe 3. A first fixing ring 21 is fixedly connected to the outer surface of one end of the first pipe 2, and a second fixing ring 31 is fixedly connected to the outer surface of one end of the second pipe 3. A connecting mechanism 1 is provided between the first pipe 2 and the second pipe 3, and a plurality of locking elements 4 are provided on one side of the connecting mechanism 1.

[0025] The connecting mechanism 1 includes a movable sleeve 11 and an outer tube 12. A protruding ring 13 is fixedly connected to the outer surface of one end of the outer tube 12. A screw 16 is fixedly connected to the outer surface of one side of the protruding ring 13. An external thread 14 is provided on the outer surface of the outer tube 12. A plurality of elastic plates 15 are fixedly connected to one end of the outer tube 12. A notch 17 is provided between two elastic plates 15. A locking port 111 is provided on the inner side of one end of the movable sleeve 11. A threaded groove 112 is provided on the inner side of the movable sleeve 11. The threaded groove 112 is connected to the external thread 14.

[0026] The specific setup and function of this embodiment are described below. When connecting the second pipe 3 and the first pipe 2, one end of the second pipe 3 needs to be inserted into the interior of the first pipe 2 to ensure proper alignment of the two pipes during the initial connection. Next, the first retaining ring 21 and screw 16 located at the end of the first pipe 2 are used for insertion and fixation. Specifically, the screw 16 is passed through the mounting hole of the first retaining ring 21, and then the nut 19 is screwed into the outer surface of the screw 16. Through the gradual tightening of the nut 19, the first retaining ring 21 is firmly locked, thereby ensuring the initial connection between the first pipe 2 and the second pipe 3. The purpose of this step is to provide a foundation for the final locking and sealing of the pipes, preventing misalignment or loosening of the two pipes in subsequent operations.

[0027] Next, the locking step of the second pipe 3 is performed. To ensure the secure connection and sealing of the two pipes, the movable sleeve 11 located on the outer surface of the second pipe 3 needs to be rotated. The inner side of the movable sleeve 11 is provided with a threaded groove 112, which, by engaging with the external thread 14 on the outer surface of the pipe, allows the movable sleeve 11 to move along the outer surface of the second pipe 3. As the movable sleeve 11 gradually approaches the second fixing ring 31, the inner locking port 111 begins to contact and compress multiple elastic pieces 15. These elastic pieces 15 are elastic and flexible; through the compression of the locking port 111, the elastic pieces 15 gradually deform and adhere tightly to the outer surface of the second pipe 3.

[0028] It is worth noting that the elastic sheet 15 is designed with notches 17. When the compressive force between the locking port 111 and the elastic sheet 15 increases, these notches 17 allow the elastic sheet 15 to undergo slight deformation, forming a uniform wrapping force on the surface of the second pipe 3. Through this crystalline wrapping, the elastic sheet 15 can firmly grip the outer surface of the second pipe 3, generating strong friction. This friction not only helps prevent the pipe from sliding or falling off, but also further enhances the stability of the entire pipe system. As the movable sleeve 11 gradually tightens, the compressive and frictional forces of the elastic sheet 15 increase, ultimately completing the compression and positioning of the second pipe 3, thereby quickly and securely achieving a complete connection between the first pipe 2 and the second pipe 3.

[0029] Example 2: Figure 2 - Figure 4 As shown, the locking component 4 includes a rotating frame 41, one end of which is threadedly connected to a threaded rod 42, and the other end of which is rotatably connected to a movable frame 44. The movable frame 44 is fixedly connected to the outer surface of the movable sleeve 11, and one end of the threaded rod 42 is fixedly connected to a pressing block 43. A insertion hole 23 is provided on one side of the first fixing ring 21, and an insertion block 22 is fixedly connected to the side wall of the first fixing ring 21. An insertion groove 18 is provided on the side wall of the convex ring 13, and a nut 19 is threadedly connected to the outer surface of the screw 16. The insertion hole 23 is inserted into the screw 16, and the insertion block 22 is inserted into the insertion groove 18. One end of the first pipe 2 extends to the inside of the outer pipe 12, and one end of the second pipe 3 extends into the inside of the first pipe 2.

[0030] The overall effect of this embodiment is that when the first fixing ring 21 contacts the protruding ring 13, not only is the insertion hole 23 accurately aligned with the screw 16, but the insertion block 22 is also precisely inserted into the inner side of the insertion slot 18. The core purpose of this design is to prevent any arbitrary rotation or displacement of the first pipe 2 after connection through the stable fit between the insertion block 22 and the insertion slot 18. The presence of the insertion block 22 provides additional positioning and stabilization functions, making the connection of the first pipe 2 more secure, thereby ensuring that the pipe position will not change due to external forces or other interference during actual operation.

[0031] After the second retaining ring 31 abuts against the movable sleeve 11, the connection operation enters the crucial tightening stage. At this point, the entire system can be further locked by operating the rotating frame 41. The rotating frame 41 is designed to rotate 90 degrees horizontally. After this step is completed, the movement of the pressing block 43 is controlled by operating the threaded rod 42. The cooperation between the threaded rod 42 and the pressing block 43 allows the pressing block 43 to gradually press the second retaining ring 31 along a specified direction.

[0032] As the extrusion block 43 advances, the second fixed ring 31 will be subjected to increasing extrusion force and will eventually fit tightly against the movable sleeve 11. This extrusion action not only enhances the stability of the second fixed ring 31 but also significantly improves the connection strength between the second pipe 3 and the first pipe 2. During this process, the precise control of the threaded rod 42 ensures the smoothness and stability of the extrusion process, avoiding weak connections caused by excessive or insufficient force.

[0033] Through the action of the compression block 43, the tight engagement between the second fixing ring 31 and the movable sleeve 11 makes the connection between the two pipes more secure, effectively avoiding the risk of pipe detachment. The overall design takes into account both the stability and convenience of the connection, ensuring that the pipeline system can withstand external interference after connection and maintain efficient and stable operation.

[0034] The usage and working principle of this device are as follows: When connecting the second pipe 3 to the first pipe 2, firstly, one end of the second pipe 3 is inserted into the first pipe 2, and the first fixing ring 21 is inserted into the screw 16. Then, the nut 19 is installed on the outer surface of the screw 16, thereby further locking the first fixing ring 21 and completing the initial connection between the first pipe 2 and the second pipe 3. Next, when locking the second pipe 3, the movable sleeve 11 is rotated so that the inner thread groove 112 engages with the outer thread 14, allowing the movable sleeve 11 to move along the outer surface of the outer pipe 12. As the movable sleeve 11 gradually approaches the second fixing ring 31, the locking port 111 on the inner side of the movable sleeve 11 gradually squeezes the elastic piece 15. Since the elastic piece 15 has a notch 17, multiple elastic pieces 15 can gradually fit against the outer surface of the second pipe 3, thereby achieving compression positioning of the outer surface of the second pipe 3. The compression positioning is completed by using the friction between the elastic piece 15 and the second pipe 3, quickly realizing the connection between the first pipe 2 and the second pipe 3. During this process, when the first fixing ring 21 contacts the convex ring 13, the insertion hole 23 and the screw 16 can be precisely aligned, and the insertion block 22 is also accurately inserted into the inner side of the insertion groove 18, thereby effectively preventing the first pipe 2 from moving arbitrarily. At the same time, after the second fixing ring 31 abuts against the movable sleeve 11, the rotating frame 41 can be rotated 90 degrees, and then the threaded rod 42 can be rotated to gradually push the pressing block 43 to move, thereby pressing and positioning the second fixing ring 31, making it tightly fit with the movable sleeve 11, making the connection between the first pipe 2 and the second pipe 3 more stable, avoiding loosening or separation, thereby ensuring the stability and reliability of the connection.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A vacuum pipe connector, comprising a first pipe (2) and a second pipe (3), wherein a first fixing ring (21) is fixedly connected to the outer surface of one end of the first pipe (2), and a second fixing ring (31) is fixedly connected to the outer surface of one end of the second pipe (3), characterized in that: A connecting mechanism (1) is provided between the first pipe (2) and the second pipe (3), and a plurality of locking elements (4) are provided on one side of the connecting mechanism (1); The connecting mechanism (1) includes a movable sleeve (11) and an outer tube (12). A protruding ring (13) is fixedly connected to the outer surface of one end of the outer tube (12). A screw (16) is fixedly connected to the outer surface of one side of the protruding ring (13). An external thread (14) is provided on the outer surface of the outer tube (12). A plurality of elastic plates (15) are fixedly connected to one end of the outer tube (12). A notch (17) is provided between two elastic plates (15). A locking port (111) is provided on the inner side of one end of the movable sleeve (11). A threaded groove (112) is provided on the inner side of the movable sleeve (11). The threaded groove (112) is connected to the external thread (14).

2. A vacuum pipe connector according to claim 1, characterized in that: The locking component (4) includes a rotating frame (41), one end of which is threadedly connected to a threaded rod (42), and the other end of which is rotatably connected to a movable frame (44).

3. A vacuum pipe connector according to claim 2, characterized in that: The movable frame (44) is fixedly connected to the outer surface of the movable sleeve (11), and one end of the threaded rod (42) is fixedly connected to an extrusion block (43).

4. A vacuum pipe connector according to claim 1, characterized in that: The first fixing ring (21) has a plug hole (23) on one side, and a plug block (22) is fixedly connected to the side wall of the first fixing ring (21).

5. A vacuum pipe connector according to claim 1, characterized in that: The side wall of the convex ring (13) is provided with a insertion groove (18), and the outer surface of the screw (16) is threaded with a nut (19).

6. A vacuum pipe connector according to claim 4, characterized in that: The insertion hole (23) is inserted into the screw (16), and the insertion block (22) is inserted into the insertion slot (18).

7. A vacuum pipe connector according to claim 1, characterized in that: One end of the first pipe (2) extends to the inside of the outer pipe (12), and one end of the second pipe (3) extends into the inside of the first pipe (2).

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