A special mold for riveting gas meter connectors and casings

Abstract

This utility model relates to the field of gas meter connector installation technology, and discloses a special mold for riveting gas meter connectors and meter cases. It includes a carrier with a cavity inside. A cylinder is fixedly connected to the top inner wall of the cavity. A driven plate is fixedly connected to the driving end of the cylinder. Two linkage plates are fixedly connected to the top of the driven plate. Two rotating plates are rotatably connected to the top of the linkage plates. Two fixing blocks are fixedly connected to the top of the carrier. Two linkage grooves are opened inside the fixing blocks. Two linkage blocks are slidably connected inside the linkage grooves. A clamping block is fixedly connected to the top of the linkage block. This utility model achieves rapid tightening and release of the clamping blocks on both sides of the meter case, significantly improving the stability and reliability of the riveting process. Combined with the elastic reset function of a spring, it can ensure the fixing strength of the meter case through mechanical force during riveting and automatically assist the clamping blocks in resetting after the process is completed.

Description

Technical Field

[0001] This utility model relates to the field of gas meter connector installation technology, and in particular to a special mold for riveting gas meter connectors and meter housings. Background Technology

[0002] Gas meter connectors are key components used to connect gas meters to external pipelines. They typically feature sealing structures such as sealing rings to prevent gas leakage. Internally, they often have flow-guiding structures to ensure smooth airflow. Externally, they can be fixed to the meter case using methods such as threads or riveting. Specialized meter case riveting molds are tooling instruments specifically designed for the meter case riveting process. Through specific structures and dimensions, they precisely position meter case components and apply pressure to achieve a firm connection between the rivet or component and the meter case. They are characterized by high precision, high efficiency, and strong specialization, and are mainly used in watch manufacturing and other fields to ensure the quality of meter case assembly and production efficiency.

[0003] A special mold for riveting gas meter connectors and housings is a dedicated tooling designed for the riveting process of gas meter connectors and housings. The mold cavity precisely positions the connector and housing. Driven by a pressure device, the mold applies directional pressure to the riveting parts, causing the materials to undergo plastic deformation and tightly mesh. Its features include precise positioning and high riveting efficiency. It is specifically designed for gas meter assembly to ensure connection strength and sealing.

[0004] In existing technologies, some special molds for riveting gas meter connectors and casings are difficult to adapt precisely to the complex structure and size requirements of gas meter casings due to the difficulty of using general molds. This results in positioning deviations after riveting, making the casing installation insecure and posing a risk of loosening. This not only affects the overall sealing performance of the gas meter but also causes safety hazards such as gas leaks. Therefore, a special mold for riveting gas meter connectors and casings is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a special mold for riveting gas meter connectors and meter housings, aiming to improve the problems of positioning deviation and unstable housing installation in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A special mold for riveting gas meter connectors and casings includes a carrier, an interior cavity of which a cylinder is fixedly connected to the top inner wall of the cavity. A driven plate is fixedly connected to the driving end of the cylinder. Two linkage plates are fixedly connected to the top of the driven plate. Two rotating plates are rotatably connected to the top of the linkage plates. Two fixing blocks are fixedly connected to the top of the carrier. Two linkage grooves are formed inside the fixing blocks. Two linkage blocks are slidably connected inside the linkage grooves. A clamping block is fixedly connected to the top of the linkage blocks. A spring is fixedly connected to each of the two linkage blocks on their adjacent sides. Two support columns are fixedly connected to the top of the carrier. Multiple adjustment components are formed inside the support columns. As a further description of the above technical solution: The adjustment assembly includes connecting grooves, with multiple connecting grooves externally formed inside the support column. A driven column is slidably connected inside the connecting groove. A wedge block is fixedly connected to an adjacent side of each of the multiple driven columns. A second spring is sleeved on the outside of each driven column. A support ring is fixedly connected to the outside of each of the multiple driven columns. As a further description of the above technical solution: The support column is internally slidably connected to a wedge-shaped column, and the top of the wedge-shaped column is fixedly connected to a connecting block; As a further description of the above technical solution: Two of the springs are fixedly connected to the inner walls of two of the linkage grooves on their adjacent sides, and the tops of the two rotating plates are rotatably connected to the bottoms of the two fixed blocks. As a further description of the above technical solution: The outer side of the wedge block is slidably connected to the inside of the connecting groove, and the bottom of the wedge column and the top of the plurality of wedge blocks are in contact on the same side. As a further description of the above technical solution: The left side of one of the second springs is fixedly connected to the right side of one of the driven columns, and the right side of one of the second springs is fixedly connected to the right inner wall of one of the connecting grooves; As a further description of the above technical solution: It also includes a connector, the inside of which is provided with an annular groove, and a sealing ring is fixedly connected to the inner wall of the annular groove; As a further description of the above technical solution: The top of the connecting block is in contact with the top inner wall of the connector, and the outer surfaces of the plurality of support rings are in contact with the inner wall of the connector.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the driven plate moves downward by starting the cylinder, which drives the linkage plate to move downward synchronously. Then, the linkage plate pulls the rotating plate to rotate synchronously, thereby pushing the linkage block to slide towards the center in the linkage groove. This causes the clamping blocks on both sides to tighten inward and clamp the gas meter casing. The cylinder drives the connected parts to reset, and at the same time, the spring force can drive the clamping blocks to reset. This achieves rapid tightening and release of the clamping blocks on both sides of the casing, significantly improving the stability and reliability of the riveting process. Combined with the elastic reset function of the spring, it can ensure the fixing strength of the casing through mechanical force during riveting, and automatically assist the clamping blocks to reset after the process is completed.

[0008] 2. In this utility model, the impact force caused by the weight of the connector itself and the riveting force drives the connecting block to push the wedge column down along the support column. The inclined surface at the bottom of the wedge column squeezes the wedge block, which in turn forces the driven column to slide outward in the connecting groove, thereby driving the support ring to press tightly against the inner wall of the connector. The second spring is compressed to generate elastic reaction force, so that the support ring continuously presses against the inner wall of the connector. Thus, the wedge mechanism is driven by the weight of the connector itself, and the adaptive radial positioning and fixing of the inner wall of the connector can be achieved without an additional power source. The elastic buffer of the second spring can not only offset the riveting impact force and protect the components, but also improve the fixing accuracy and stability of the connector through continuous pressing force. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a special mold for riveting a gas meter connector and a meter case according to the present invention. Figure 2 This is a schematic diagram of the fixing block of a special mold for riveting a gas meter connector and a meter case, as proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the wedge-shaped column of a special mold for riveting a gas meter connector and a meter case according to the present invention. Figure 5 This is a schematic diagram of the connection head of a gas meter connector and a special mold for riveting the meter casing, as proposed in this utility model.

[0010] Legend: 1. Carrier; 2. Cylinder; 3. Driven plate; 4. Linkage plate; 5. Rotating plate; 6. Fixed block; 7. Linkage groove; 8. Linkage block; 9. Clamping block; 10. Spring 1; 11. Support column; 12. Connecting groove; 13. Driven column; 14. Wedge block; 15. Spring 2; 16. Support ring; 17. Wedge column; 18. Connector; 19. Annular groove; 20. Sealing ring; 21. Connecting block. Detailed Implementation

[0011] 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.

[0012] Reference Figures 1 to 3 This utility model provides an embodiment of a special mold for riveting a gas meter connector and a meter casing, including a carrier 1. The carrier 1 provides installation space and support for the upper device. The carrier 1 has a cavity inside, which provides support for fixing and supporting a cylinder 2. The cylinder 2 is fixedly connected to the inner wall of the top of the cavity. The cylinder 2 is the power source for fixing the outer casing. The drive end of the cylinder 2 is fixedly connected to a driven plate 3. The driven plate 3 receives the force from the cylinder 2 and moves. Two linkage plates 4 are fixedly connected to the top of the driven plate 3. The linkage plates 4 then receive the force from the driven plate 3 and move up or down synchronously. Two rotating plates 5 are rotatably connected to the top of the linkage plates 4. The rotating plates 5 serve to connect the fixing block 6 and the linkage plates 4. Two fixing blocks 6 are fixedly connected to the top of the carrier 1. The fixing blocks 6 provide space for the opening of the linkage groove 7. The fixing blocks 6 have two linkage grooves 7 inside. The linkage grooves 7 provide limiting and guiding functions for the linkage block 8. The linkage grooves 7 have two sliding connections inside. The linkage blocks 8 provide fixing and support functions for the clamping block 9. The top of the linkage block 8 is fixedly connected to the clamping block 9. The clamping block 9 is subjected to the force from the linkage block 8 and moves inward to fix the watch case. The two linkage blocks 8 are respectively fixedly connected to a spring 10 on their adjacent sides. The spring 10 has an elastic function and provides fixing and support functions for the linkage block 8. The top of the carrier 1 is fixedly connected to two support columns 11. The support columns 11 are used to provide support and positioning for the watch case and the connector. Multiple adjustment components are opened inside the support columns 11.

[0013] Reference Figure 1 and Figure 4 The adjustment assembly includes a connecting groove 12, which provides a limiting and guiding function for the driven column 13. Multiple connecting grooves 12 are opened on the outside of the support column 11, which provides space for the connecting grooves 12. The driven column 13 is slidably connected inside the connecting groove 12, which provides a limiting and guiding function for the driven column 13. Wedge blocks 14 are fixedly connected to the adjacent sides of the multiple driven columns 13. The wedge blocks 14 are used to be squeezed by the wedge column 17 above, thereby driving the driven column 13 to slide outward, while squeezing the spring 15 at the same time. A second spring 15 is sleeved on the outside of the driven column 13. The second spring 15 has an elastic function and provides elastic support for the driven column 13. Support rings 16 are fixedly connected to the outside of multiple driven columns 13. The support rings 16 are used to receive the force from the driven column 13, thereby fixing the inner wall of the connector 18. At the same time, the elasticity of the second spring 15 can reduce the impact force caused during riveting. The elastic support of the second spring 15 can also reduce the wear on the support column 11. A wedge column 17 is slidably connected to the inside of the support column 11. The support column 11 provides a limiting and guiding function for the wedge column 17. A connecting block 21 is fixedly connected to the top of the wedge column 17. The connecting block 21 is used to receive the force from the connector 18 or the impact force caused during riveting to drive the wedge column 17 to slide down.

[0014] Reference Figures 2 to 4 Two springs 10 are fixedly connected to the inner walls of two adjacent linkage grooves 7, with the springs 10 fixed on one side. The linkage grooves 7 provide fixation and support for the springs 10 and can be reset by their own elasticity after the linkage block 8 is stressed, thus driving the clamping block 9 to reset. The tops of the two rotating plates 5 are rotatably connected to the bottoms of the two fixed blocks 6, and the fixed blocks 6 receive the force from the rotating plates 5 and slide inward or outward. The wedge block 14 is externally slidably connected to the inside of the connecting groove 12, which provides a limit for the wedge block 14. The bottom of the wedge-shaped post 17 and the top of the multiple wedge-shaped blocks 14 are in contact with each other on the same side. The wedge-shaped post 17 slides down and squeezes the wedge-shaped blocks 14, which in turn allows them to slide outward and support the inner wall of the connector 18. The left side of one of the springs 15 is fixedly connected to the right side of one of the driven posts 13. The spring 15 provides auxiliary support for the driven post 13. The right side of one of the springs 15 is fixedly connected to the inner wall of the right side of one of the connecting grooves 12. The connecting groove 12 serves to fix and support the spring 15.

[0015] Reference Figure 1 and Figure 5 It also includes a connector 18, which has an annular groove 19 inside. The connector 18 provides space for the annular groove 19. A sealing ring 20 is fixedly connected to the inner wall of the annular groove 19. The sealing ring 20 can seal by its own elasticity when it is squeezed by the case during riveting. The top of the connecting block 21 is in contact with the top inner wall of the connector 18. The connecting block 21 is used to place the connector 18 and plays a role in positioning and supporting the connector 18. The outer side of multiple support rings 16 is in contact with the inner wall of the connector 18. The support rings 16 can fix the inner wall of the connector 18.

[0016] Working principle: When it is necessary to fix the watch case, the cylinder 2 drives the driven plate 3 to move downward, which drives the linkage plate 4 to move downward synchronously. Then, the linkage plate 4 pulls the rotating plate 5 to rotate synchronously, which in turn pushes the linkage block 8 to slide towards the center in the linkage groove 7, so that the clamping blocks 9 on both sides tighten inward and clamp the gas meter casing. After the riveting is completed, the cylinder 2 drives the connected parts to reset, and at the same time, the spring force of spring 10 drives the clamping block 9 to reset, so as to achieve stable fixation of the watch case and ensure that the watch case does not shift during the riveting process.

[0017] When connector 18 is placed, the weight of connector 18 and the impact force caused by riveting drive connecting block 21 to push wedge column 17 down along support column 11. The inclined surface at the bottom of wedge column 17 squeezes wedge block 14, which in turn forces driven column 13 to slide outward in connecting groove 12, thereby driving support ring 16 to press tightly against the inner wall of connector 18. Spring 15 is compressed to generate elastic reaction force, so that support ring 16 continuously presses against the inner wall of connector 18. This not only completes the radial positioning of connector 18, but also buffers and offsets the impact force of riveting momentarily through spring buffer. This structure does not require an additional power source, but only relies on the weight of connector 18 to drive the wedge mechanism, and with the elastic support of spring, it achieves adaptive fixation and buffer protection of the inner wall of connector 18.

[0018] The sealing ring 20 inside the annular groove 19 undergoes elastic deformation under the pressure of the watch case during riveting, filling the mating gap to achieve a seal. After the watch case and the connector 18 are bidirectionally fixed by the clamping block 9 and the support ring 16, the upper mold applies riveting pressure to the connector 18. The support ring 16 stabilizes the inner wall of the connector 18 through the elastic support of the second spring 15, preventing it from deforming due to force. The external clamping block 9 fixes the watch case through the preload of the first spring 10, ensuring that the axes of the two are aligned.

[0019] 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. A special die for the riveting of a gas meter connection to a meter housing, comprising a carrier (1), characterized in that: The carrier (1) has a cavity inside, and a cylinder (2) is fixedly connected to the top inner wall of the cavity. A driven plate (3) is fixedly connected to the driving end of the cylinder (2). Two linkage plates (4) are fixedly connected to the top of the driven plate (3). Two rotating plates (5) are rotatably connected to the top of the linkage plate (4). Two fixed blocks (6) are fixedly connected to the top of the carrier (1). Two linkage grooves (7) are opened inside the fixed blocks (6). Two linkage blocks (8) are slidably connected inside the linkage grooves (7). A clamping block (9) is fixedly connected to the top of the linkage blocks (8). A spring (10) is fixedly connected to the adjacent side of the two linkage blocks (8). Two support columns (11) are fixedly connected to the top of the carrier (1). Multiple adjustment components are opened inside the support columns (11).

2. The special die for riveting the joint of gas meter and the shell of the meter according to claim 1, characterized in that: The adjustment assembly includes a connecting groove (12), and the outside of the multiple connecting grooves (12) is opened inside the support column (11). A driven column (13) is slidably connected inside the connecting groove (12). A wedge block (14) is fixedly connected to one side of the multiple driven columns (13). A spring (15) is sleeved on the outside of the driven column (13). A support ring (16) is fixedly connected to the outside of the multiple driven columns (13).

3. The special mold for riveting a gas meter connector and a meter case according to claim 2, characterized in that: The support column (11) is internally slidably connected to a wedge column (17), and the bottom and top of the wedge column (17) are fixedly connected to a connecting block (21).

4. The special die for riveting the joint of gas meter and the shell of the gas meter according to claim 1, characterized in that: Two of the springs (10) are fixedly connected to the inner walls of two of the linkage grooves (7) on their respective adjacent sides, and the tops of the two rotating plates (5) are rotatably connected to the bottoms of the two fixed blocks (6).

5. The special die for riveting the joint of gas meter and the shell of gas meter according to claim 3, characterized in that: The external of the wedge block (14) is slidably connected to the inside of the connecting groove (12), and the bottom of the wedge post (17) and the top of the plurality of wedge blocks (14) are in contact on the same side.

6. The special die for riveting the gas meter joint to the meter shell according to claim 2, characterized in that: The left side of one of the springs (15) is fixedly connected to the right side of one of the driven posts (13), and the right side of one of the springs (15) is fixedly connected to the right inner wall of one of the connecting grooves (12).

7. The special die for riveting the joint of gas meter and the shell of gas meter according to claim 3, characterized in that: It also includes a connector (18), the inside of which is provided with an annular groove (19), and a sealing ring (20) is fixedly connected to the inner wall of the annular groove (19).

8. The special die for riveting the gas meter joint to the meter shell according to claim 7, characterized in that: The top of the connecting block (21) is in contact with the top inner wall of the connector (18), and the outer sides of the plurality of support rings (16) are in contact with the inner wall of the connector (18).

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