Copper pipe expansion adjusting mechanism

Abstract

The utility model relates to the technical field of copper pipe expansion, and discloses a copper pipe expansion adjusting mechanism which comprises two rotating legs and a guide plate, the close sides of the two rotating legs are fixedly connected with a pipe expansion mechanism, the outer portion of the guide plate is connected with an extension mechanism in a sliding mode, and the left side of the pipe expansion mechanism is fixedly connected with a positioning mechanism. The extension mechanism comprises a grip, the interior of the grip is slidably connected to the exterior of the guide plate, the top side of the guide plate is fixedly connected to the bottom side of the rotating leg, the right end of the grip is slidably connected with a sliding plate, and the front side and the rear side of the sliding plate are fixedly connected with side plates. According to the copper pipe expanding device, the positioning plate can be clamped in the other limiting openings again, so that the length of the rotating leg can be increased, the force arm can be increased, the copper pipe expanding device can be conveniently used by women or workers with weak physical strength, insufficient copper pipe expanding is avoided, and then the copper pipe expanding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of copper tube expansion technology, and in particular to a copper tube expansion adjustment mechanism. Background Technology

[0002] Copper pipes are tubing made of copper and copper alloys, and are crucial for refrigerant circulation in air conditioning and refrigeration equipment. In split-type air conditioners, the indoor and outdoor units are connected by copper pipes. The refrigerant flows within the copper pipes, facilitating heat absorption and release. A copper pipe expansion adjustment mechanism ensures a tight connection when the copper pipe is connected to other components (such as tube sheets, other copper pipes, etc.), preventing fluid leakage.

[0003] When expanding a copper tube, hold the copper tube and insert the desired expansion end into the expansion end of the copper tube expansion adjustment mechanism. Then, repeatedly press the copper tube expansion adjustment mechanism and rotate the copper tube to achieve uniform expansion, thus facilitating docking and use.

[0004] In existing technologies, some copper tube expansion adjustment mechanisms suffer from varying strengths depending on the operator. For operators with less strength, such as women or physically weaker workers, insufficient force may be required to operate the mechanism, leading to inadequate expansion of the copper tube and reduced expansion quality. Therefore, this paper proposes a copper tube expansion adjustment mechanism to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a copper tube expansion adjustment mechanism, which aims to improve the problem that some copper tube expansion adjustment mechanisms in the prior art cannot fully expand the tube when faced with women or those with weak physical strength, resulting in a reduction in the quality of copper tube expansion.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A copper tube expansion adjustment mechanism includes two rotating legs and a guide plate. An expansion mechanism is fixedly connected to one side of the two rotating legs. An extension mechanism is slidably connected to the outside of the guide plate. A positioning mechanism is fixedly connected to the left side of the expansion mechanism.

[0008] The extension mechanism includes a handle, the inside of which is slidably connected to the outside of the guide plate. The top side of the guide plate is fixedly connected to the bottom side of the rotating leg. A sliding plate is slidably connected to the right end of the handle. Side plates are fixedly connected to both the front and rear sides of the sliding plate. A reset assembly for resetting the side plate is slidably connected inside the side plate. An inclined opening is provided inside the sliding plate. A sliding column is slidably connected inside the sliding plate. A positioning plate is fixedly connected to the left side of the sliding column. Multiple limiting openings are provided on the right side of the guide plate.

[0009] As a further description of the above technical solution:

[0010] The tube expansion mechanism includes two triangular blocks. The opposite sides of the two triangular blocks are fixedly connected to the adjacent sides of the two rotating legs. I-shaped blocks are rotatably connected to the outside of the two triangular blocks. An expansion tube is fixedly connected to the top side of the rotating leg. A ring is fixedly connected to the opposite side of the inner wall of the two expansion tubes. A torsion spring is fixedly connected to the outside of the two rings.

[0011] As a further description of the above technical solution:

[0012] The positioning mechanism includes a right-angle plate, the right side of which is fixedly connected to the left side of the I-shaped block. A positioning frame is fixedly connected to the top side of the right-angle plate. Positioning rods are fixedly connected to both the front and rear ends of the positioning frame. Springs are sleeved on both the upper and lower ends of the positioning rods. Two connecting plates are slidably connected to the outside of the positioning rods. Two arc-shaped plates are fixedly connected to the adjacent sides of the multiple connecting plates.

[0013] As a further description of the above technical solution:

[0014] The reset assembly includes a guide post, the outside of which is slidably connected to the inside of the side plate, and a spring is sleeved on the outside of the guide post;

[0015] As a further description of the above technical solution:

[0016] The top end of the spring is fixedly connected to the bottom end of the side plate, and the outside of the sliding column is slidably connected to the inside of the inclined opening.

[0017] As a further description of the above technical solution:

[0018] The positioning plate is externally slidably connected to the inside of the limiting opening, and the bottom ends of the two springs are fixedly connected to the bottom side of the inner wall of the handle.

[0019] As a further description of the above technical solution:

[0020] The distal ends of the plurality of springs are respectively fixedly connected to the upper and lower sides of the inner wall of the positioning frame, and the proximal ends of the plurality of springs are respectively fixedly connected to the distal side of the plurality of connecting plates.

[0021] As a further description of the above technical solution:

[0022] The positioning plate is slidably connected to the inside of the sliding plate, and the two side plates are slidably connected to the inner walls of the front and rear ends of the handle, respectively.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by releasing the pushing force on the sliding plate, the spring can be reset and the force can be transmitted to the positioning plate, so that the positioning plate can be locked into the interior of the remaining limiting openings again, thereby extending the length of the rotating leg and increasing the lever arm, making it easier for women or workers with weak physical strength to use, avoiding insufficient expansion of the copper tube, and thus improving the quality of copper tube expansion.

[0025] 2. In this utility model, the arc plate drives the two connecting plates to slide and compress the second spring, so that the second spring can store elastic potential energy, and then give the connecting plate a force in the opposite direction, thereby pushing the arc plate against the copper tube, so that the copper tube can be picked up manually for a long time, thus reducing manpower. Attached Figure Description

[0026] Figure 1 This is a perspective view of a copper tube expansion adjustment mechanism proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the ring structure of a copper tube expansion adjustment mechanism proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the guide plate of a copper tube expansion adjustment mechanism proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the sliding column of a copper tube expansion adjustment mechanism proposed in this utility model;

[0030] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 6 This is a schematic diagram of the right-angle plate of a copper tube expansion adjustment mechanism proposed in this utility model;

[0032] Figure 7 This is a schematic diagram of the arc-shaped plate of a copper tube expansion adjustment mechanism proposed in this utility model.

[0033] Legend:

[0034] 1. Rotating leg; 2. Triangular block; 3. I-shaped block; 4. Expansion tube; 5. Ring; 6. Torsion spring; 7. Guide plate; 8. Handle; 9. Sliding plate; 10. Side plate; 11. Guide post; 12. Spring one; 13. Inclined opening; 14. Sliding post; 15. Positioning plate; 16. Limiting opening; 17. Right angle plate; 18. Positioning frame; 19. Positioning rod; 20. Spring two; 21. Connecting plate; 22. Arc plate. Detailed Implementation

[0035] 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.

[0036] Reference Figures 1 to 2 This utility model provides an embodiment of a copper tube expansion adjustment mechanism, comprising two rotating legs 1 and a guide plate 7. The rotating legs 1 provide a stable foundation for subsequent tube expansion actions. An expansion mechanism is fixedly connected to the adjacent sides of the two rotating legs 1, which is responsible for expanding the copper tube. The expansion mechanism includes two triangular blocks 2, which serve as both connectors and supports. The distant sides of the two triangular blocks 2 are fixedly connected to the adjacent sides of the two rotating legs 1, forming a single unit through welding. An I-shaped block 3 is rotatably connected to the outside of the two triangular blocks 2, serving as a movable component in the expansion mechanism to support its rotation. An expansion tube 4 is fixedly connected to the top side of the rotating legs 1, directly contacting the copper tube and causing it to deform. Rings 5 ​​are fixedly connected to the distant sides of the inner walls of the two expansion tubes 4, providing support for subsequent components. The two rings 5 ​​are externally fixedly connected to torsion springs 6, which provide elastic restoring force during the expansion process to ensure that the expansion tube 4 can smoothly return to its original position after the expansion operation is completed. The guide plate 7 is externally slidably connected to an extension mechanism, which is mainly used to accommodate different users.

[0037] Reference Figures 3 to 5 The extension mechanism includes a handle 8, which facilitates operation and control by the operator. The handle 8 is internally slidably connected to the outside of a guide plate 7, allowing it to move smoothly on the guide plate 7. The top side of the guide plate 7 is fixedly connected to the bottom side of the rotating leg 1 via welding, thus strengthening the overall structure. A sliding plate 9 is slidably connected to the right end of the handle 8. The sliding plate 9 slides under the drive of the handle 8, transmitting the sliding force to subsequent components. Side plates 10 are fixedly connected to both the front and rear sides of the sliding plate 9, providing stable support and guidance for its sliding. A reset assembly for the reset side plate 10 is slidably connected internally to the side plate 10, enabling it to reset after operation. The reset assembly includes a guide post 11, which serves as the core guiding component of the reset assembly.

[0038] The guide post 11 is externally slidably connected to the inside of the side plate 10, allowing the side plate 10 to slide precisely up and down under the guidance of the guide post 11. A spring 12 is sleeved on the outside of the guide post 11, and by restricting the spring 12, it can be evenly stressed. The bottom ends of the two springs 12 are fixedly connected to the bottom side of the inner wall of the grip 8, stabilizing the bottom fixing point of the springs 12. The top ends of the springs 12 are fixedly connected to the bottom end of the side plate 10, allowing the springs 12 to apply an upward elastic force to the side plate 10. The outside of the two side plates 10 are slidably connected to the inner walls of the front and rear ends of the grip 8, respectively, ensuring the sliding stability of the side plates 10 within the grip 8. An inclined opening 13 is provided inside the sliding plate 9. The special inclined angle design of the inclined opening 13 converts the vertical sliding force of the sliding plate 9 into horizontal sliding. A sliding post 14 is slidably connected inside the sliding plate 9, and the sliding post 14 slides laterally under the guidance of the inclined opening 13. The sliding column 14 is externally slidably connected to the inside of the inclined opening 13, allowing the sliding column 14 to slide smoothly within the inclined opening 13. A positioning plate 15 is fixedly connected to the left side of the sliding column 14, and the positioning plate 15 moves accordingly under the action of the sliding column 14. The external side of the positioning plate 15 is slidably connected to the inside of the sliding plate 9, allowing the positioning plate 15 to slide stably within the sliding plate 9. Multiple limiting openings 16 are provided on the right side of the guide plate 7, which can precisely limit the movement range of the positioning plate 15. The external side of the positioning plate 15 is slidably connected to the inside of the limiting openings 16, allowing the positioning plate 15 to slide stably within the limiting openings 16.

[0039] Reference Figure 1 , Figure 6 and Figure 7 The positioning mechanism includes a right-angle plate 17 for supporting subsequent components. The right side of the right-angle plate 17 is fixedly connected to the left side of the I-shaped block 3, forming a single unit. A positioning frame 18 is fixedly connected to the top side of the right-angle plate 17, providing installation space for subsequent positioning components. Positioning rods 19 are fixedly connected to both ends of the positioning frame 18, serving as supports and guides for the positioning components. Springs 20 are fitted at both the upper and lower ends of the positioning rods 19, ensuring even force distribution. The adjacent ends of multiple springs 20 are fixedly connected to the upper and lower sides of the inner wall of the positioning frame 18, stabilizing the fixed points at both ends of the springs 20. Two connecting plates 21 are slidably connected to the outside of the positioning rods 19, sliding on the positioning rods 19 to adjust the position of the arc-shaped plate 22. Multiple springs 20 are fixedly connected at their proximal ends to the distal ends of multiple connecting plates 21, so that the springs 20 can apply elastic force to the connecting plates 21. Two arc-shaped plates 22 are fixedly connected at their proximal ends to the multiple connecting plates 21, and the arc-shaped plates 22 serve as positioning points for direct contact with the copper tube.

[0040] Working principle: The copper tube to be expanded is placed between two arc-shaped plates 22. The copper tube will then squeeze the arc-shaped plates 22. The arc-shaped plates 22 drive the two connecting plates 21 to slide and squeeze the second spring 20, so that the second spring 20 can store elastic potential energy, and then give the connecting plate 21 a force in the opposite direction, thereby pushing the arc-shaped plates 22 to hold the copper tube against it. This eliminates the need for manual handling of the copper tube for a long time, thus reducing manpower.

[0041] Then, grip the handle 8 and support the grip force, then transfer the force to the guide plate 7, and then to the triangular block 2, so that the triangular block 2 can rotate around the I-shaped block 3, thereby driving the expansion tube 4 to open and expand the copper tube. While the expansion tube 4 is opening, it will also drive the ring 5 to rotate and stretch the torsion spring 6, so that the torsion spring 6 can store elastic potential energy, and then give the expansion tube 4 a force in the opposite direction to reset it. Then, repeatedly grip the handle 8 so that it can expand the copper tube.

[0042] Furthermore, to accommodate different user groups, pushing the sliding plate 9 causes the two side plates 10 to slide downwards and compress the spring 12, allowing the spring 12 to store elastic potential energy. This then provides the sliding plate 9 with a force in the opposite direction to reset it. Subsequently, through the inclined opening 13 inside the sliding plate 9, the sliding plate 9 pushes the sliding column 14 to slide horizontally as it slides downwards, causing the positioning plate 15 to slide and move away from the inside of the limiting opening 16. Then, the handle 8 slides downwards along the guide plate 7. Releasing the pushing force on the sliding plate 9 allows the spring 12 to reset and transmit force to the positioning plate 15, enabling the positioning plate 15 to engage again inside the remaining limiting openings 16. This extends the length of the rotating leg 1, increases the lever arm, and makes it easier for women or workers with weaker physical strength to use, preventing insufficient expansion of the copper tube and thus improving the quality of copper tube expansion.

[0043] 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 copper tube expansion adjustment mechanism, comprising two rotating legs (1) and a guide plate (7), characterized in that: An expansion mechanism is fixedly connected to one side of the two rotating legs (1), an extension mechanism is slidably connected to the outside of the guide plate (7), and a positioning mechanism is fixedly connected to the left side of the expansion mechanism. The extension mechanism includes a handle (8), the inside of which is slidably connected to the outside of the guide plate (7), the top side of the guide plate (7) is fixedly connected to the bottom side of the rotating leg (1), the right end of the handle (8) is slidably connected to a sliding plate (9), the front and rear sides of the sliding plate (9) are fixedly connected to side plates (10), the inside of the side plate (10) is slidably connected to a reset assembly for resetting the side plate (10), the inside of the sliding plate (9) is provided with an inclined opening (13), the inside of the sliding plate (9) is slidably connected to a sliding column (14), the left side of the sliding column (14) is fixedly connected to a positioning plate (15), and the right side of the guide plate (7) is provided with multiple limiting openings (16).

2. The copper tube expansion adjustment mechanism according to claim 1, characterized in that: The tube expansion mechanism includes two triangular blocks (2), with the far sides of the two triangular blocks (2) fixedly connected to the near sides of the two rotating legs (1), and I-shaped blocks (3) rotatably connected to the outside of the two triangular blocks (2). An expansion tube (4) is fixedly connected to the top side of the rotating leg (1), and a ring (5) is fixedly connected to the far sides of the inner walls of the two expansion tubes (4). A torsion spring (6) is fixedly connected to the outside of the two rings (5).

3. The copper tube expansion adjustment mechanism according to claim 2, characterized in that: The positioning mechanism includes a right-angle plate (17), the right side of which is fixedly connected to the left side of the I-shaped block (3), a positioning frame (18) is fixedly connected to the top side of the right-angle plate (17), a positioning rod (19) is fixedly connected to both the front and rear ends of the positioning frame (18), and springs (20) are sleeved on both the upper and lower ends of the positioning rod (19). Two connecting plates (21) are slidably connected to the outside of the positioning rod (19), and two arc-shaped plates (22) are fixedly connected to the adjacent side of the multiple connecting plates (21).

4. The copper tube expansion adjustment mechanism according to claim 1, characterized in that: The reset assembly includes a guide post (11), the outside of which is slidably connected to the inside of the side plate (10), and a spring (12) is sleeved on the outside of the guide post (11).

5. The copper tube expansion adjustment mechanism according to claim 4, characterized in that: The top end of the spring (12) is fixedly connected to the bottom end of the side plate (10), and the outside of the sliding column (14) is slidably connected to the inside of the inclined opening (13).

6. The copper tube expansion adjustment mechanism according to claim 5, characterized in that: The external part of the positioning plate (15) is slidably connected to the inside of the limiting opening (16), and the bottom ends of the two springs (12) are fixedly connected to the bottom side of the inner wall of the handle (8).

7. The copper tube expansion adjustment mechanism according to claim 3, characterized in that: The far ends of the multiple springs (20) are respectively fixedly connected to the upper and lower sides of the inner wall of the positioning frame (18), and the near ends of the multiple springs (20) are respectively fixedly connected to the far side of the multiple connecting plates (21).

8. The copper tube expansion adjustment mechanism according to claim 1, characterized in that: The positioning plate (15) is slidably connected to the inside of the sliding plate (9), and the two side plates (10) are slidably connected to the inner walls of the front and rear ends of the handle (8).

Images