Valve mechanism for aluminum shell

Abstract

The utility model relates to the technical field of electronic product shell structures, discloses a valve mechanism for an aluminum shell, and aims to solve the problem that the existing valve mechanism for the aluminum shell is relatively poor in structural reliability. According to the spring plunger assembly, continuous axial thrust is provided through the built-in spiral compression spring, so that the hinge shaft and the mounting hole are in elastic self-adaptive fit, positioning can be completed without forced deformation of a plastic part, the hidden danger of microscopic cracks caused by repeated bending of materials is fundamentally eliminated, and in the assembly process, the assembly efficiency is greatly improved. By means of the automatic centering characteristic of the spring plunger, the installation working hour of a single assembly can be shortened by 40%, the control requirement for the assembling force of operators is lowered by 60%, the production line operation efficiency is remarkably improved, meanwhile, the groove-ball socket structure provides two-gear self-locking force (the closing force is larger than or equal to 3N, and the opening force is larger than or equal to 2.5 N), and the precision reaches + / -0.1 mm.

Description

Technical Field

[0001] This utility model relates to the field of electronic product housing structure technology, and in particular to a door mechanism for aluminum housings. Background Technology

[0002] For newly developed electronic products, a standard aluminum casing is the conventional choice. On one hand, the casing must provide protection and meet the basic installation requirements of the hardware circuitry; on the other hand, the casing design plays a crucial role in the product's appearance, requiring the design of input / output ports, displays, etc., according to project requirements. Some buttons and program upgrade ports on electronic products are only used by debugging engineers, necessitating the design of a flap (also called a flip cover) on the casing. Here, a flap mechanism has been designed to fit the product's aluminum casing.

[0003] The existing technical solutions have the following shortcomings:

[0004] Firstly, the existing aluminum-cased valve mechanism has certain defects in terms of material matching. Specifically, the plastic valve component and the aluminum casing show obvious differences in both visual presentation and actual tactile texture. This dual difference caused by material properties directly has a negative impact on the consistency of the overall appearance of the product, making it impossible for the product to meet the expected design standards and aesthetic requirements in terms of the unity and coordination of appearance texture.

[0005] Secondly, the existing aluminum-cased valve mechanism structure lacks reliability. The valve components based on plastic rely excessively on the material's own toughness and deformation to achieve locking and installation. This non-rigid connection method causes the components to accumulate microscopic plastic deformation in stress concentration areas (such as the root of the slot and the edge of the hinge shaft hole) under long-term alternating loads. This leads to functional failures such as reduced sealing surface fit when the valve is closed and abnormal fluctuations in opening resistance torque. The traditional hinge structure uses a simple pin hinge design. Due to the lack of damping limit structure or elastic positioning device, it cannot form a stable position holding capability at any opening angle. Such additional structures not only increase the complexity of the assembly process and the number of parts, but may also cause new reliability hazards due to wear and fatigue of the locking parts themselves.

[0006] Therefore, we need to design a gate mechanism based on an aluminum housing to solve the problems mentioned above. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing valve mechanism structure with insufficient reliability. This utility model proposes a valve mechanism for aluminum shells.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a valve mechanism for an aluminum shell, comprising a valve body, a valve seat, a spring plunger, and a glass ball;

[0009] The spring plunger is threadedly connected to the valve seat, and its plunger head is inserted into the holes on both sides of the valve body to form a rotating shaft.

[0010] The glass beads are riveted to the valve seat, and the inner wall of the valve body is provided with grooves that cooperate with the glass beads and ball sockets at both ends.

[0011] Preferably, the groove depth is less than the ball socket depth, with the ball socket depth being 0.8±0.05mm and the groove depth being 0.3±0.05mm.

[0012] Preferably, the valve body is made of anodized aluminum alloy with a surface roughness Ra≤0.8μm.

[0013] Preferably, the glass beads are made of stainless steel with a surface hardness ≥ HRC55.

[0014] Preferably, the spring stiffness of the spring plunger is in the range of 1.0–1.5 N / mm.

[0015] Preferably, the valve seat is fixed to the inner wall of the outer casing by screws.

[0016] Compared with the prior art, the beneficial effects of this utility model include:

[0017] 1. To optimize the installation process and improve structural reliability, a spring plunger hinge structure is adopted to replace the traditional plastic toughness installation method. This spring plunger assembly provides continuous axial thrust through a built-in helical compression spring, so that the hinge shaft and the mounting hole form an elastic adaptive fit. Positioning can be completed without forced deformation of the plastic parts, which fundamentally eliminates the hidden danger of micro-cracks caused by repeated bending of materials. During the assembly process, the automatic centering characteristic of the spring plunger can reduce the installation time of a single component by 40% and reduce the requirements for the assembly force control of operators by 60%, which significantly improves the efficiency of production line operation. At the same time, the groove-ball socket structure provides two levels of self-locking force (closing force ≥3N, opening and closing force ≥2.5N) with an accuracy of ±0.1mm.

[0018] 2. To fundamentally address the dual technical requirements of consistent appearance and structural durability, an innovative integrated aluminum alloy material system was adopted to reconstruct the valve mechanism. By selecting the same aluminum alloy as the outer shell as the valve base material, this material homogeneity design completely eliminates the textural disconnect between plastic and metal, giving the product a seamless metallic aesthetic after assembly. At the same time, this process increases the wear resistance of the hinge points to more than 8 times that of traditional plastic valves. In 100,000 cycles of opening and closing tests, the increase in the shaft hole clearance is controlled within 0.05mm, ensuring that the self-locking force attenuation is ≤10% during long-term use. This ensures the long-term reliability of the mechanism from both material and process perspectives. Attached Figure Description

[0019] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall combined three-dimensional structure of this utility model;

[0021] Figure 2 This is a front view structural diagram of the gate mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the right side of the gate mechanism of this utility model;

[0023] Figure 4 This is a bottom view schematic diagram of the gate mechanism of this utility model;

[0024] Figure 5 This is a bottom view schematic diagram of the gate mechanism of this utility model;

[0025] Figure 6 Cross-sectional view of the valve mechanism of this utility model Figure 1 Structural diagram;

[0026] Figure 7 Cross-sectional view of the valve mechanism of this utility model Figure 2 Structural diagram;

[0027] Figure 8 Axial view of the valve mechanism of this utility model Figure 1 Structural diagram;

[0028] Figure 9 Axial view of the valve mechanism of this utility model Figure 2 Structural diagram;

[0029] Figure 10 Axial view of the valve mechanism of this utility model Figure 3 Structural diagram;

[0030] Figure 11 This is a schematic diagram of the structure of the valve in the closed state of this utility model;

[0031] Figure 12 This is a schematic diagram of the structure of the valve in the open state of this utility model.

[0032] The following are the labels in the diagram: 1. Valve body; 2. Valve seat; 3. Spring plunger; 21. Glass ball; 31. Plunger head. Detailed Implementation

[0033] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0034] To address the technical problem and overcome the inherent reliability limitations of existing aluminum-cased valve mechanisms, the following solution is disclosed, specifically as follows: Figures 1-12 As shown:

[0035] A valve mechanism for an aluminum housing includes a valve body 1, a valve seat 2, a spring plunger 3, and a glass ball 21;

[0036] The spring plunger 3 is threadedly connected to the valve seat 2, and its plunger head 31 is inserted into the holes on both sides of the valve body 1 to form a rotating shaft;

[0037] The glass bead 21 is riveted to the valve seat 2, and the inner wall of the valve body 1 is provided with a groove that mates with the glass bead 21 and ball sockets at both ends;

[0038] Furthermore, the valve body 1 and valve seat 2 achieve dual-position self-locking through the contact of glass beads 21. Combining the depth difference between the groove and the ball socket, and utilizing the self-restoring characteristic of the compression spring of the glass beads 21, the position of the valve body 1 is kept accurate.

[0039] The groove depth is less than the ball-and-socket depth, with the ball-and-socket depth being 0.8±0.05mm and the groove depth being 0.3±0.05mm.

[0040] Furthermore, by utilizing the differentiated design of the groove depth (0.3±0.05mm) and the ball socket depth (0.8±0.05mm), and through the geometric constraints of the sliding path of the glass bead 21, a clear switching between closed and open states is achieved when the valve flips, thereby optimizing the positioning accuracy.

[0041] The valve body 1 is made of anodized aluminum alloy with a surface roughness Ra≤0.8μm;

[0042] Furthermore, by using anodized aluminum alloy (surface roughness Ra≤0.8μm) for the valve and designing it in the same way as the outer shell, the visual difference between plastic and metal is eliminated;

[0043] Glass Bead 21 is made of stainless steel with a surface hardness ≥ HRC55;

[0044] The spring stiffness of spring plunger 3 ranges from 1.0 to 1.5 N / mm.

[0045] Furthermore, by matching the spring stiffness range (1.0–1.5 N / mm) of the spring plunger with the weight of the valve, the ease and stability of opening and closing operations are ensured.

[0046] The valve seat 2 is fixed to the inner wall of the outer casing by screws;

[0047] Workflow:

[0048] S1: Screw the spring plunger 3 into the threaded hole of the valve seat 2, and adjust the preload to 5 N·m.

[0049] S2: Press glass beads 21 into the pre-drilled holes in the valve seat and fix them with adhesive.

[0050] S3: The plunger head 31 is inserted into the side hole of the valve body 1 to complete the hinge connection.

[0051] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A valve mechanism for an aluminum housing, comprising a valve body (1), a valve seat (2), a spring plunger (3), and a glass ball (21); Its features are: The spring plunger (3) is threadedly connected to the valve seat (2), and its plunger head (31) is inserted into the holes on both sides of the valve body (1) to form a rotating shaft; The glass bead (21) is riveted to the valve seat (2), and the inner wall of the valve body (1) is provided with a groove that matches the glass bead (21) and ball sockets at both ends.

2. The valve mechanism for an aluminum housing according to claim 1, characterized in that: The groove depth is less than the ball-and-socket depth, with the ball-and-socket depth being 0.8±0.05mm and the groove depth being 0.3±0.05mm.

3. The valve mechanism for an aluminum housing according to claim 1, characterized in that: The valve body (1) is made of anodized aluminum alloy with a surface roughness Ra≤0.8μm.

4. The valve mechanism for an aluminum housing according to claim 1, characterized in that: The glass beads (21) are made of stainless steel with a surface hardness ≥ HRC55.

5. The valve mechanism for an aluminum housing according to claim 4, characterized in that: The spring stiffness of the spring plunger (3) ranges from 1.0 to 1.5 N / mm.

6. The valve mechanism for an aluminum housing according to claim 1, characterized in that: The valve seat (2) is fixed to the inner wall of the outer casing by screws.

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