An L-shaped integrated bend for connecting a gas meter
By introducing mechanical structures such as carriers, connecting rings, and linkage blocks into the L-shaped integrated bend, combined with sealing gaskets and sealing rings, the problems of cumbersome installation and easy loosening in the existing technology are solved, achieving fast and firm connection and efficient gas sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENLAN PIPE TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-26
AI Technical Summary
Existing L-shaped integrated bends are cumbersome to install and prone to loosening when connected to external devices, which increases the risk of gas leakage, especially in space-constrained scenarios where operation is difficult.
The system employs a mechanical structure consisting of a carrier, connecting ring, linkage block, clamping block, and sealing components. The linkage ring is rotated by a lever to achieve double mechanical fixation. Combined with a sealing gasket and sealing ring, a multi-layer sealing structure is formed to ensure the firmness and sealing performance of the connection.
It achieves rapid installation and efficient dual mechanical fixation, significantly improving the strength and sealing performance of the connection and effectively preventing gas leakage.
Smart Images

Figure CN224283913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas engineering technology, and in particular to an L-shaped integrated bend pipe for connecting a gas meter. Background Technology
[0002] L-shaped integrated bends are pipe fittings with a specific L-shaped structure. They are made of a single, integral piece without any splicing parts. They change the flow direction of fluids and are commonly used in various pipeline systems. They are made of a variety of materials, such as metal and plastic, and different materials of L-shaped integrated bends are suitable for different working conditions.
[0003] The L-shaped integrated bend connecting the gas meter is a special pipe fitting made of specific materials with an L-shaped structure. It is used to achieve a stable connection between the gas meter and the gas pipeline, ensuring a tight seal and preventing leakage. The L-shaped structure changes the direction of gas flow, allowing gas to flow smoothly from the pipeline into the gas meter, be metered, and then be transported along the pipeline to the gas-using equipment.
[0004] In existing technologies, some L-shaped integrated bends are cumbersome and time-consuming to install. When connecting to external devices (such as gas meters and pipe interfaces), traditional L-shaped bends use bolts or welding, requiring repeated adjustments of angle and position with tools. This is especially true in space-constrained scenarios where the difficulty of operation increases significantly. Split structures or spliced connections are prone to loosening due to external vibrations, thermal expansion and contraction of pipes, etc., which can lead to gas leakage risks. Therefore, an L-shaped integrated bend for connecting gas meters is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an L-shaped integrated bend for connecting a gas meter, aiming to improve the problem of loose interfaces in the prior art that could lead to gas leakage risks.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An L-shaped integrated bend for connecting a gas meter includes a carrier, a connecting ring fixedly connected to the outside of the carrier, multiple connecting grooves inside the connecting ring, two springs fixedly connected to the top inner wall of one of the connecting grooves, a linkage block fixedly connected to the bottom of the two springs, a clamping block fixedly connected to the front side of the linkage block, an annular groove inside the connecting ring, a linkage ring rotatably connected to the outside of the carrier, multiple linkage blocks fixedly connected to the outside of the carrier, multiple driven grooves inside the carrier, multiple springs fixedly connected to the bottom inner wall of one of the driven grooves, a driven block fixedly connected to the top of the multiple springs, a driven block fixedly connected to the top of the driven block, multiple square grooves inside the linkage ring, a linkage assembly fixedly connected to the rear side of the linkage ring, and a sealing assembly inside the carrier.
[0008] As a further description of the above technical solution:
[0009] The sealing assembly includes a sealing groove, a plurality of fixing posts are fixedly connected to the rear inner wall of the sealing groove, a spring four is fixedly connected to the rear inner wall of the fixing posts, a connecting post is fixedly connected to the front side of the spring four, an annular post is fixedly connected to the front side of the plurality of connecting posts, a sealing ring is fixedly connected to the front side of the annular post, and a sealing gasket is fixedly connected to the front side of the carrier.
[0010] As a further description of the above technical solution:
[0011] The linkage component includes a lever, the front side of which is fixedly connected to the rear side of the linkage ring, and a spring is fixedly connected to the right side of the lever. The carrier has multiple through holes inside.
[0012] As a further description of the above technical solution:
[0013] The external sliding connection of the first linkage block is inside the connecting groove, and the adjacent sides of the multiple first linkage blocks and the distant sides of the multiple second linkage blocks are in contact.
[0014] As a further description of the above technical solution:
[0015] The outer side of the second linkage block is in contact with the inner wall of the annular groove, and the outer side of the second driven block is in contact with the inner wall of the square groove.
[0016] As a further description of the above technical solution:
[0017] The outer side of the driven block one is in contact with the inner wall of the through hole, and the bottom of the spring three is fixedly connected to the bottom inner wall of the carrier;
[0018] As a further description of the above technical solution:
[0019] The external of the driven block is slidably connected to the inside of the driven groove, and the external of the connecting column is slidably connected to the inner wall of the fixed column;
[0020] As a further description of the above technical solution:
[0021] The outer side of the annular column is slidably connected to the inside of the sealing groove, and the outer side of the sealing groove is opened inside the carrier.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the rotating paddle causes the linkage ring to rotate, which in turn causes the linkage block two to slide in the annular groove and press the linkage block one, causing the clamping block to slide outward along the connecting groove. When the linkage ring rotates, the paddle is elastically reset by the spring three, and the clamping block is reset inward under the action of the spring one. At the same time, the edge of the square groove presses the driven block two again, pushing the driven block one out of the through hole. Thus, the paddle linkage spring and mechanical structure are linked, and the mechanical linkage process is synchronously triggered by the double fixing mechanism, which can quickly complete the double mechanical fixing with the external device, improving the installation efficiency and connection firmness.
[0024] 2. In this utility model, the sealing gasket contacts the external device and, after being squeezed, fills the gap at the connection point through its own deformation, thus completing the initial seal. At the same time, when the external device is inserted into the carrier, it will push the annular column and the sealing ring on its front side to move to the rear side of the sealing groove. The connecting column compresses the spring four and slides along the fixed column. The elastic support force of the spring four is transmitted to the annular column through the connecting column, thereby realizing that the sealing gasket and the sealing ring form a double sealing structure, forming a multi-layer barrier, significantly improving the sealing performance and effectively preventing gas leakage. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of an L-shaped integrated bend for connecting a gas meter, as proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the connecting ring for an L-shaped integrated bend pipe connecting a gas meter, as proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the driven block of an L-shaped integrated bend pipe for connecting a gas meter, as proposed in this utility model.
[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0029] Figure 5 for Figure 3 Enlarged view of section B in the middle.
[0030] Legend:
[0031] 1. Carrier; 2. Connecting ring; 3. Connecting groove; 4. Spring 1; 5. Linkage block 1; 6. Clamping block; 7. Annular groove; 8. Linkage ring; 9. Linkage block 2; 10. Driven groove; 11. Spring 2; 12. Driven block 1; 13. Driven block 2; 14. Square groove; 15. Push block; 16. Spring 3; 17. Through hole; 18. Sealing groove; 19. Fixing post; 20. Spring 4; 21. Connecting post; 22. Annular post; 23. Sealing ring; 24. Sealing gasket. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1 to 3 This utility model provides an embodiment of an L-shaped integrated bend for connecting a gas meter, comprising a carrier 1, which provides installation space and protection for internal devices. A connecting ring 2 is fixedly connected to the outside of the carrier 1, and the connecting ring 2 provides space for opening connecting grooves 3. Multiple connecting grooves 3 are opened inside the connecting ring 2, and the connecting grooves 3 provide fixing and support for springs 4. Two springs 4 are fixedly connected to the top inner wall of one of the connecting grooves 3. The springs 4 have an elastic function and provide elastic support for its linkage block 5. A linkage is fixedly connected to the bottom of the two springs 4. Block 5 is compressed by link block 2 9, which in turn drives clamping block 6 to move outward. Clamping block 6 is fixedly connected to the front side of link block 5. Clamping block 6 is used to clamp and fix the external device. An annular groove 7 is opened inside the connecting ring 2. The annular groove 7 allows link block 2 9 to slide inside it, thereby compressing link block 5. Linking ring 8 is rotatably connected to the outside of carrier 1. Linking ring 8 provides fixation and support for link block 2 9. Multiple link blocks 2 9 are fixedly connected to the outside of carrier 1. Linking blocks 2 9 are used to compress link block 5.
[0034] Reference Figure 3 and Figure 4The carrier 1 has multiple driven grooves 10 inside, which provide fixation and support for the second spring 11. Multiple second springs 11 are fixedly connected to the bottom inner wall of one of the driven grooves 10. The second springs 11 have elasticity and provide elastic support for the first driven block 12. The first driven block 12 is fixedly connected to the top of the multiple second springs 11. The first driven block 12 is used to slide through the through hole 17 and thus fix the internal part of the external device. The second driven block 13 is fixedly connected to the top of the first driven block 12. The second driven block 13 is used to be squeezed from the edge of the square groove 14, which drives the second driven block 13 to slide down and squeeze the second spring 11 at the same time. The linkage ring 8 has multiple square grooves 14 inside, which are used to squeeze the second driven block 13 at the edge. The linkage assembly is fixedly connected to the rear side of the linkage ring 8. The carrier 1 has a sealing assembly inside.
[0035] Reference Figure 3 and Figure 5 The sealing assembly includes a sealing groove 18, which provides fixation and support for the fixing posts 19. Multiple fixing posts 19 are fixedly connected to the rear inner wall of the sealing groove 18. The fixing posts 19 provide fixation and support for the four springs 20. The four springs 20 are elastic, providing elastic support for their connecting posts 21. Connecting posts 21 are fixedly connected to the front of the four springs 20, serving to connect the annular post 22 and the four springs 20. The front of the multiple connecting posts 21 is fixed... The carrier 1 is connected to an annular post 22, which provides fixation and support for the sealing ring 23. The sealing ring 23 is fixedly connected to the front side of the annular post 22. The sealing ring 23 is subjected to compression from an external device and then elastic support from a spring 20 through the annular post 22. This causes the sealing ring 23 to adhere to the inner wall of the sealing groove 18 through its own elastic deformation, thereby completing the initial seal. The front side of the carrier 1 is fixedly connected to a sealing gasket 24. The sealing gasket 24 is subjected to compression from an external device and completes the seal through its own deformation, thereby achieving a double seal.
[0036] Reference Figures 3 to 5The linkage component includes a lever 15, which drives the linkage ring 8 to rotate. The front side of the lever 15 is fixedly connected to the rear side of the linkage ring 8. By rotating the lever 15, the linkage ring 8 is driven to rotate, which in turn drives the external linkage block 2 9 to press the linkage block 1 5, causing its clamping block 6 to slide outward. At the same time, the square groove 14 releases the pressure on the driven block 2 13, so that the driven block 1 12 is elastically reset and retracted by the spring 2 11, thus preparing to connect with the external device. The right side of the lever 15 is fixedly connected to the spring 3 16, which has an elastic function. The lever 15 provides elastic support. The carrier 1 has multiple through holes 17 inside, which are used for the passage of the driven block 1 12. The external side of the linkage block 1 5 is slidably connected to the inside of the connecting groove 3. The connecting groove 3 provides the limiting and guiding function for the linkage block 1 5.
[0037] Multiple linkage blocks 5 are in contact with each other on their adjacent sides and multiple linkage blocks 9 are in contact with each other on their distant sides. Linkage block 5 is used to be squeezed by linkage block 9, thereby driving clamp block 6 to move outward. The outer side of linkage block 9 is in contact with the inner wall of annular groove 7. Linkage block 9 can slide inside annular groove 7. The outer side of driven block 13 is in contact with the inner wall of square groove 14. Square groove 14 is used to squeeze driven block 13 through the edge of square groove 14 when its linkage ring 8 rotates. The outer side of driven block 12 is in contact with the inner wall of through hole 17. Driven block 12 slides through the edge of through hole 17.
[0038] The bottom of spring 16 is fixedly connected to the inner wall of the bottom of carrier 1. Carrier 1 provides fixation and support for spring 16. The external of driven block 12 is slidably connected to the inside of driven groove 10. Driven groove 10 provides limiting and guiding function for driven block 12. The external of connecting post 21 is slidably connected to the inner wall of fixed post 19. Fixed post 19 provides limiting and guiding function for connecting post 21. The external of annular post 22 is slidably connected to the inside of sealing groove 18. Sealing groove 18 provides limiting and guiding function for annular post 22. The external of sealing groove 18 is opened inside carrier 1. Carrier 1 provides opening space for sealing groove 18.
[0039] Working principle: When an external device needs to be connected, rotating the lever 15 drives the linkage ring 8 to rotate around the carrier 1, which in turn drives the linkage ring 8 to rotate, causing the linkage block 2 9 to slide in the annular groove 7 and press the linkage block 1 5. After being pressed, the linkage block 1 5 overcomes the elastic force of the spring 1 4, causing the clamping block 6 to slide outward along the connecting groove 3, so that the clamping block 6 clamps the external pipe or gas meter interface. When the linkage ring 8 rotates, the pressing of the driven block 2 13 by the edge of the square groove 14 is released. Under the elastic reset action of the spring 2 11, the driven block 12 retracts to its initial position through the through hole 17, making room for the external device to be inserted into the carrier 1. After insertion, the lever 15 is elastically reset by the spring 3 16, and the linkage block 2 9 gradually moves away from the linkage block 1 5. The clamping block 6 resets inward under the action of the spring 1 4. At the same time, the edge of the square groove 14 presses the driven block 2 13 again, pushing the driven block 12 out of the through hole 17 and into the internal hole of the external device, achieving double mechanical fixation.
[0040] While connecting to the external device, the sealing gasket 24 contacts the external device and, upon compression, fills the gap at the connection point through its own deformation, completing the initial seal. At the same time, when the external device is inserted into the carrier 1, it pushes the annular column 22 and its front sealing ring 23 to move towards the rear of the sealing groove 18. The connecting column 21 compresses the spring 4 20 and slides along the fixed column 19. The elastic support force of the spring 4 20 is transmitted to the annular column 22 through the connecting column 21, making the sealing ring 23 tightly adhere to the inner wall of the sealing groove 18 and the outer wall of the external device. The elastic deformation of the sealing ring 23 further seals the gap. The double sealing structure of the sealing gasket 24 and the sealing ring 23 effectively prevents gas leakage and ensures the sealing and safety of the connection.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An L-shaped integrated bend for connecting a gas meter, comprising a carrier (1), characterized in that: The carrier (1) is externally fixedly connected to a connecting ring (2). Multiple connecting grooves (3) are provided inside the connecting ring (2). Two springs (4) are fixedly connected to the top inner wall of one of the connecting grooves (3). A linkage block (5) is fixedly connected to the bottom of the two springs (4). A clamping block (6) is fixedly connected to the front side of the linkage block (5). An annular groove (7) is provided inside the connecting ring (2). A linkage ring (8) is rotatably connected to the outside of the carrier (1). The carrier (1) is externally fixedly connected to... Multiple linkage blocks (9), multiple driven grooves (10) are provided inside the carrier (1), multiple springs (11) are fixedly connected to the bottom inner wall of one of the driven grooves (10), a driven block (12) is fixedly connected to the top of the multiple springs (11), a driven block (13) is fixedly connected to the top of the driven block (12), multiple square grooves (14) are provided inside the linkage ring (8), a linkage component is fixedly connected to the rear side of the linkage ring (8), and a sealing component is provided inside the carrier (1).
2. The L-shaped integrated bend for connecting a gas meter according to claim 1, characterized in that: The sealing assembly includes a sealing groove (18), a plurality of fixing posts (19) are fixedly connected to the rear inner wall of the sealing groove (18), a spring four (20) is fixedly connected to the rear inner wall of the fixing post (19), a connecting post (21) is fixedly connected to the front side of the spring four (20), an annular post (22) is fixedly connected to the front side of the plurality of connecting posts (21), a sealing ring (23) is fixedly connected to the front side of the annular post (22), and a sealing gasket (24) is fixedly connected to the front side of the carrier (1).
3. The L-shaped integrated bend for connecting a gas meter according to claim 1, characterized in that: The linkage component includes a toggle block (15), the front side of which is fixedly connected to the rear side of the linkage ring (8), and a spring three (16) is fixedly connected to the right side of the toggle block (15). The carrier (1) has multiple through holes (17) inside.
4. The L-shaped integrated bend for connecting a gas meter according to claim 1, characterized in that: The external sliding connection of the first linkage block (5) is inside the connecting groove (3), and the adjacent sides of the multiple first linkage blocks (5) and the distant sides of the multiple second linkage blocks (9) are in contact.
5. An L-shaped integrated bend for connecting a gas meter according to claim 1, characterized in that: The outer side of the linkage block 2 (9) is in contact with the inner wall of the annular groove (7), and the outer side of the driven block 2 (13) is in contact with the inner wall of the square groove (14).
6. An L-shaped integrated bend for connecting a gas meter according to claim 3, characterized in that: The outer side of the driven block (12) is in contact with the inner wall of the through hole (17), and the bottom of the spring (16) is fixedly connected to the bottom inner wall of the carrier (1).
7. An L-shaped integrated bend for connecting a gas meter according to claim 2, characterized in that: The external sliding connection of the driven block (12) is inside the driven groove (10), and the external sliding connection of the connecting column (21) is inside the fixed column (19).
8. An L-shaped integrated bend for connecting a gas meter according to claim 2, characterized in that: The annular column (22) is slidably connected to the inside of the sealing groove (18), and the outside of the sealing groove (18) is opened inside the carrier (1).