A connector for connecting a capillary tube to a spray tube
By designing the connection parts for capillary and eruption pipes, the problem of high welding requirements for welding skills, large energy consumption and high waste gas emissions is solved, and the effect of reducing energy consumption and waste gas emissions is achieved and the risk of brittle fracture of the capillary is reduced.
Patent Information
- Application Number
- CN202420914545.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-29
AI Technical Summary
In the prior art, the fire welding connection method between the capillary and the eruption pipe is prone to injury to welding personnel, high energy consumption, high exhaust gas emissions, and high welding skills requirements, which can easily lead to overburning, deformation and brittle fracture of the capillary.
A connection member for connecting the capillary tube and the ejection tube is designed, including a guide section, a sliding section and a lock section, and the connection is achieved through through holes extending in the axial direction, avoiding fire welding.
Reduces requirements for welding skills, reduces energy consumption and exhaust gas emissions, reduces the risk of brittle capillary fracture and avoids leakage.
Smart Images
Figure CN222732327U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to a connector for connecting a capillary tube and a spray tube, belonging to the technical field of household appliances. Background technology:
[0002] Refrigerators, freezers, display cabinets, etc. all connect capillaries to spray tubes. Because the inner and outer diameters of refrigerator capillaries are relatively small (inner diameter is about 0.6, outer diameter is about 1.8), capillaries are currently connected to spray tubes (tapered tubes) through flame welding. This connection method can easily burn the inner tank and wires in the box. At the same time, poor control of welding time can easily cause the capillary to overburn, deform, and break easily, which requires welders to have high welding skills. In addition, flame welding consumes energy (oxygen and natural gas, etc.) and produces waste gas, which affects the welder's vision.
[0003] Therefore, it is necessary to improve the existing technology to solve the shortcomings of the existing technology. Utility model content:
[0004] The utility model provides a connecting piece for connecting a capillary tube and a spray tube in order to solve the problems existing in the prior art.
[0005] The technical solutions adopted by the utility model include: a connecting piece for connecting a capillary tube with a spray tube, comprising a guide section, a sliding section and a locking section connected in sequence, a through hole extending along the axial direction thereof is formed through the connecting piece, the through hole located at the guide section is a first through hole, the through hole located at the sliding section is a second through hole, the through hole located at the locking section is a third through hole, the diameter of the second through hole gradually increases from the connection between the second through hole and the third through hole to the connection between the second through hole and the first through hole, and the diameter of the first through hole gradually increases from the connection between the first through hole and the second through hole to the outer side wall of the connecting piece.
[0006] Further, the axial length of the first through hole is 0.5 mm±0.2 mm, the axial length of the second through hole is 3.7 mm, and the axial length of the third through hole is 2 mm.
[0007] Furthermore, the outer diameter of the connecting piece is 8 mm, and the diameter of the third through hole is 2.9 mm±0.05 mm.
[0008] Furthermore, a circular chamfer is formed on the end of the third through hole away from the second through hole, and the radius of the circular chamfer is R=0.5 mm.
[0009] Furthermore, a notch portion is formed on the guide segment and the sliding segment at a position adjacent to the guide segment.
[0010] Furthermore, the outer diameter of the capillary is 1.8 mm, the outer diameter of the spray tube is 3.2 mm, and the inner diameter of the spray tube is 1.95 mm.
[0011] Furthermore, the wall thickness of the spray tube is ≥0.6 mm.
[0012] Furthermore, the inner wall of the spray pipe bulges inward to form a limiting point.
[0013] The utility model has the following beneficial effects: the utility model is a connector for connecting a capillary tube and a blowout tube, does not require high operating skills of personnel, does not require operation by personnel of special types of work, can improve the risk of brittle fracture of the capillary tube, avoid leakage, and thus reduce energy consumption and waste gas emissions. Description of the drawings:
[0014] Figure 1 This is a schematic diagram of a connector for connecting a capillary tube and a spray tube according to the utility model.
[0015] Figure 2 Schematic diagram of a capillary tube.
[0016] Figure 3 Schematic diagram of the eruption tube. Specific implementation method:
[0017] The utility model is further described below in conjunction with the accompanying drawings.
[0018] The utility model discloses a connector for connecting a capillary tube with a spray tube, comprising a guide section 1, a sliding section 2 and a locking section 3 which are connected in sequence. A through hole extending along the axial direction thereof is formed through the connector. The through hole located at the guide section 1 is defined as a first through hole 10, the through hole located at the sliding section 2 is defined as a second through hole 20, and the through hole located at the locking section 3 is defined as a third through hole 30.
[0019] The outer diameter of the connector is 8 mm, the axial length of the third through hole 30 is 2 mm, and the diameter of the third through hole 30 is 2.9 mm ± 0.05 mm. The axial length of the second through hole 20 is 3.7 mm, and the diameter of the second through hole 20 gradually increases from the connection between the second through hole 20 and the third through hole 30 to the connection between the second through hole 20 and the first through hole 10. The axial length of the first through hole 10 is 0.5 mm ± 0.2 mm, and the diameter of the first through hole 10 gradually increases from the connection between the first through hole 10 and the second through hole 20 to the outer side wall of the connector.
[0020] A circular chamfer 300 is formed on the end of the third through hole 30 away from the second through hole 20 , and the radius R of the circular chamfer 300 is 0.5 mm.
[0021] In order to accurately distinguish which section of the connecting piece is the guide section from the appearance of the connecting piece, a notch 11 is formed on the guide section 1 and the sliding section 2 at a position adjacent to the guide section 1 .
[0022] As a specific implementation of the utility model, the outer diameter of the capillary is 1.8 mm, the outer diameter of the ejection tube is 3.2 mm, the inner diameter of the ejection tube is 1.95 mm, and the wall thickness of the ejection tube is ≥ 0.6 mm. In order to install the capillary to the accurate position in the ejection tube, the outer wall of the ejection tube is punched, and after the punching, the inner wall of the ejection tube bulges inward and deforms to form a limit point 4.
[0023] The utility model is used for connecting a capillary tube with a spray tube. When in use, the capillary tube is first installed in the spray tube, and the capillary tube is limited to an accurate position in the spray tube through a limit point 4, and then the position of the guide section 1 is first sleeved on the outside of the spray tube, and the connecting piece is further moved to sleeve the sliding section 2 on the outside of the spray tube until the locking section 3 is fastened to the outside of the spray tube.
[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.
Claims
1. A connector for connecting a capillary tube to a spray tube, characterized in that: The invention comprises a guide section (1), a sliding section (2) and a locking section (3) which are connected in sequence. A through hole extending in the axial direction of the connecting member is formed through the connecting member. The through hole located at the guide section (1) is a first through hole (10), the through hole located at the sliding section (2) is a second through hole (20), and the through hole located at the locking section (3) is a third through hole (30). The diameter of the second through hole (20) gradually increases from the connection between the second through hole (20) and the third through hole (30) to the connection between the second through hole (20) and the first through hole (10), and the diameter of the first through hole (10) gradually increases from the connection between the first through hole (10) and the second through hole (20) to the outer wall of the connecting member.
2. The connector for connecting a capillary tube to a spray tube according to claim 1, characterized in that: The axial length of the first through hole (10) is 0.5 mm±0.2 mm, the axial length of the second through hole (20) is 3.7 mm, and the axial length of the third through hole (30) is 2 mm.
3. The connector for connecting a capillary tube to a spray tube according to claim 2, characterized in that: The outer diameter of the connecting piece is 8 mm, and the diameter of the third through hole (30) is 2.9 mm±0.05 mm.
4. The connector for connecting a capillary tube to a spray tube according to claim 3, characterized in that: A circular chamfer (300) is formed on the end of the third through hole (30) away from the second through hole (20), and the radius R of the circular chamfer (300) is 0.5 mm.
5. The connector for connecting a capillary tube to a spray tube according to claim 4, characterized in that: A notch portion (11) is formed on the guide section (1) and the sliding section (2) at a position adjacent to the guide section (1).
6. The connector for connecting a capillary tube to a spray tube according to claim 5, characterized in that: The outer diameter of the capillary is 1.8 mm, the outer diameter of the spray tube is 3.2 mm, and the inner diameter of the spray tube is 1.95 mm.
7. The connector for connecting a capillary tube to a spray tube according to claim 6, characterized in that: The wall thickness of the spray pipe is ≥0.6 mm.
8. The connector for connecting a capillary tube to a spray tube according to claim 7, characterized in that: The inner wall of the ejection tube bulges inwards to form a limiting point (4).