A valve interface

Abstract

The utility model provides a kind of valve interface, including the injection molding piece with flange portion and interface portion being set on the flange portion, the side of the flange portion is fixed with reinforcing sheet, the reinforcing sheet is provided with interface connecting hole and injection molding connecting hole located in the interface connecting mouth side, the flange portion has mutually symmetrical first encapsulation portion and mutually asymmetric second encapsulation portion and third encapsulation portion;The reinforcing sheet has the first extension positioning portion corresponding first encapsulation portion, the second extension positioning portion corresponding the second encapsulation portion and the third extension positioning portion corresponding third encapsulation portion, the injection molding connecting hole is countersunk hole, and the head of countersunk hole is located the outside surface of the reinforcing sheet.The utility model in, injection molding connecting hole is countersunk hole, can make the injection molding structure body formed in its inside present the shape of big outside small inside, to improve the connecting strength between reinforcing sheet and injection molding piece, realize the purpose of effective anti -drop.

Description

Technical Field

[0001] This utility model belongs to the field of valve component technology, and specifically relates to a valve interface. Background Technology

[0002] To improve the strength of the injection-molded parts in valve interface components, metal sheets are used as reinforcing plates. During injection molding, the metal sheet is placed into the mold. However, because the metal sheet is located on the end face of the injection-molded part, its bonding force mainly relies on its surface through-holes and edges. Therefore, although the strength of the finished product is improved, it is prone to detachment from the injection-molded part. Furthermore, the metal sheet has an axisymmetric structure; therefore, if improper operation results in the metal sheet being placed upside down, it will cause compression molding and prevent proper glue adhesion, affecting the overall strength of the finished product. Utility Model Content

[0003] The purpose of this utility model is to provide a valve interface that improves the bonding force between the reinforcing sheet and the injection molded part and has an error prevention function, thereby improving the yield of finished products.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a valve interface, comprising an injection-molded part having a flange portion and an interface portion disposed on the flange portion, a reinforcing plate fixed to one side of the flange portion, the reinforcing plate having an interface connection hole and an injection-molded connection hole located on one side of the interface connection hole, the flange portion having a first coated portion that is symmetrical to each other and a second coated portion and a third coated portion that are asymmetrical to each other; the reinforcing plate having a first extended positioning portion corresponding to the first coated portion, a second extended positioning portion corresponding to the second coated portion and a third extended positioning portion corresponding to the third coated portion, the injection-molded connection hole being a countersunk hole, and the head of the countersunk hole being located on the outer side of the reinforcing plate.

[0005] Furthermore, the outer surface of the first coated portion is an arc surface, and the two first coated portions are symmetrically arranged with the first plane as the symmetrical face, the first plane passing through the central axis of the arc surface and the central axis of the interface portion.

[0006] Furthermore, the distance between the outer side of the second extended positioning portion and the arc surface is greater than the radius of the arc surface, and the distance between the outer extension of the third extended positioning portion and the arc surface is less than the radius of the arc surface.

[0007] Furthermore, the outer surfaces of the first and second extended positioning portions are both arc surfaces, while the outer surface of the third extended positioning portion is a plane.

[0008] Furthermore, the outer side surface of the first overmolded portion is coplanar with the outer side surface of the first extended positioning portion, the outer side surface of the second overmolded portion is coplanar with the outer side surface of the second extended positioning portion, and the outer side surface of the third overmolded portion is coplanar with the outer side surface of the third extended positioning portion.

[0009] Furthermore, the injection molding connection hole is a countersunk hole with a tapered surface, and its large diameter section diameter D1 and small diameter section diameter D2 satisfy D1-D2≥0.5mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the injection connection hole is a countersunk hole, which enables the injection structure formed inside to have a shape that is larger on the outside and smaller on the inside, thereby improving the connection strength between the reinforcing sheet and the injection molded part and achieving the purpose of effectively preventing detachment.

[0011] 2. In this utility model, the reinforcing sheet adopts an asymmetrical structure, which has the function of preventing errors and can effectively reduce the mismatch rate, avoiding the occurrence of glue application failure due to misplacement. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural view of a preferred embodiment of the present invention; Figure 2 for Figure 1 Front view of the structure of the embodiment shown; Figure 3 for Figure 2 Structural sectional view along the AA direction; Figure 4 for Figure 3 A magnified view of a section at point I; Figure 5 for Figure 1 Front view of the reinforcement sheet in the illustrated embodiment.

[0013] Figure label: 1. Injection molded part; 2. Flange part; 3. Interface part; 4. Reinforcing sheet; 5. Mushroom-shaped structure; 6. Interface connection hole; 7. Injection connection hole; 8. First overmolded part; 9. Second overmolded part; 10. Third overmolded part; 11. First extended positioning part; 12. Second extended positioning part; 13. Third extended positioning part; 14. First plane; 15. Large diameter section; 16. Small diameter section. Detailed Implementation

[0014] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] like Figures 1 to 5 As shown, this utility model discloses a valve interface, including an injection-molded part 1 having a flange portion 2 and an interface portion 3 disposed on the flange portion 2. The interface portion 3 penetrates the flange portion 2 and is eccentrically positioned. A reinforcing sheet 4 is fixed to the outer end face of the flange portion 2. The reinforcing sheet 4 is a metal sheet that can improve the strength of the entire injection-molded part 1. The plastic injection-molded body surrounds the edge of the reinforcing sheet 4 to the lower surface, and the material is PA66+30%GF or PA 6T / 6I / 66+50%GF. The reinforcing sheet 4 is SUS304 stainless steel with a thickness of 0.5mm-1.0mm.

[0016] The reinforcing sheet 4 is provided with an interface connection hole 6 and an injection connection hole 7 located on one side of the interface connection port. The interface connection hole 6 corresponds to the position of the interface part 3, so as to connect with the interface part 3 after injection molding. The flange part 2 has a first overmolded part 8 that is symmetrical to each other and a second overmolded part 9 and a third overmolded part 10 that are asymmetrical to each other. The reinforcing sheet 4 has a first extended positioning part 11 corresponding to the first overmolded part 8, a second extended positioning part 12 corresponding to the second overmolded part 9, and a third extended positioning part 13 corresponding to the third overmolded part 10. The injection connection hole 7 is a countersunk hole, and the head of the countersunk hole is located on the outer side of the reinforcing sheet 4. There are 7 injection connection holes 7, which are arranged symmetrically. The center of the middle injection connection hole 7 is located on the plane of symmetry, which is the same as the plane of symmetry of the two first overmolded parts 8. The first extended positioning part 11, the second extended positioning part 12, and the third extended positioning part 13 all protrude outward relative to the main body, so as to achieve positioning after being placed in the mold. The first overmolded portion 8, the second overmolded portion 9, and the third overmolded portion 10 are formed after injection molding, and respectively form a three-way covering corresponding to the first extended positioning portion 11, the second extended positioning portion 12, and the third extended positioning portion 13. The injection-molded part 1 completely wraps and seals the reinforcing sheet 4, effectively isolating it from moisture, oxygen, and corrosive substances, preventing corrosion of the metal parts, and improving the product's durability and reliability in harsh environments. At the same time, the encased plastic also acts as a reinforcing rib, preventing the product from deforming and failing during durability testing or use.

[0017] As a preferred example, the outer surface of the first rubber-coated part 8 is an arc surface, and the two first rubber-coated parts 8 are symmetrically arranged with the first plane 14 as the symmetrical surface. The first plane 14 passes through the central axis of the arc surface and the central axis of the interface part 3.

[0018] As a preferred example, the distance R2 between the outer surface of the second extended positioning part 12 and the arc surface is greater than the radius R1 of the arc surface, and the distance L between the outer extension of the third extended positioning part 13 and the arc surface is less than the radius R1 of the arc surface. This arrangement allows the second extended positioning part 12 and the third extended positioning part 13 to be arranged asymmetrically, and similarly, the two first extended positioning parts 11 are arranged asymmetrically with the second extended positioning part 12 and the third extended positioning part 13, thus achieving error prevention functionality for the reinforcing sheet 4 as a whole in two directions. As a preferred example, R2-R1∈[0.5mm,1.2mm], R1-L∈[0.5mm,1.2mm].

[0019] As a preferred example, in order to make it easier to process and manufacture the reinforcing sheet 4, the outer side of the first extended positioning part 11 and the outer side of the second extended positioning part 12 are both arc surfaces, and the outer side of the third extended positioning part 13 is a plane, so as to serve as a reference surface for positioning with the plane positioning block in the mold.

[0020] As a preferred example, the outer side of the first coating portion 8 is coplanar with the outer side of the first extended positioning portion 11, the outer side of the second coating portion 9 is coplanar with the outer side of the second extended positioning portion 12, and the outer side of the third coating portion 10 is coplanar with the outer side of the third extended positioning portion 13.

[0021] As a preferred example, the injection-molded connecting hole 7 is a countersunk hole with a tapered surface, where the diameter D1 of the larger diameter section 15 and the diameter D2 of the smaller diameter section 16 satisfy D1-D2≥0.5mm. The hole diameter is larger at the top and smaller at the bottom, with a cone angle α=45°. The diameter D1 of the larger diameter section 15 is 3.5mm, and the diameter D2 of the smaller diameter section 16 is 2.5mm. After injection molding, a mushroom-shaped structure 5 is formed inside the countersunk hole, enhancing the pull-out resistance. Any aspects not detailed in this invention are well-known techniques to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A valve interface, comprising an injection-molded part (1) having a flange portion (2) and an interface portion (3) disposed on the flange portion (2), wherein a reinforcing plate (4) is fixed to one side of the flange portion (2), and the reinforcing plate (4) is provided with an interface connection hole (6) and an injection-molded connection hole (7) located on one side of the interface connection hole, characterized in that: The flange (2) has a first rubber-coated portion (8) that is symmetrical to each other and a second rubber-coated portion (9) and a third rubber-coated portion (10) that are asymmetrical to each other; the reinforcing sheet (4) has a first extended positioning portion (11) corresponding to the first rubber-coated portion (8), a second extended positioning portion (12) corresponding to the second rubber-coated portion (9) and a third extended positioning portion (13) corresponding to the third rubber-coated portion (10), the injection molding connection hole (7) is a countersunk hole, and the head of the countersunk hole is located on the outer side of the reinforcing sheet (4).

2. A valve interface according to claim 1, characterized in that: The outer surface of the first rubber-coated part (8) is an arc surface. The two first rubber-coated parts (8) are symmetrically arranged with the first plane (14) as the symmetrical surface. The first plane (14) passes through the central axis of the arc surface and the central axis of the interface part (3).

3. A valve interface according to claim 2, characterized in that: The distance between the outer side of the second extended positioning part (12) and the arc surface is greater than the radius of the arc surface, and the distance between the outer extension of the third extended positioning part (13) and the arc surface is less than the radius of the arc surface.

4. A valve interface according to claim 3, characterized in that: The outer side of the first extended positioning part (11) and the outer side of the second extended positioning part (12) are both arc surfaces, and the outer side of the third extended positioning part (13) is a plane.

5. A valve interface according to claim 4, characterized in that: The outer side of the first coated part (8) is coplanar with the outer side of the first extended positioning part (11), the outer side of the second coated part (9) is coplanar with the outer side of the second extended positioning part (12), and the outer side of the third coated part (10) is coplanar with the outer side of the third extended positioning part (13).

6. A valve interface according to claim 1, characterized in that: The injection connection hole (7) is a countersunk hole with a tapered surface, and the diameter D1 of its large diameter section (15) and the diameter D2 of its small diameter section (16) satisfy D1-D2≥0.5mm.

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