A fool-proof nozzle adapter block structure for a thin film coating valve

Abstract

The utility model relates to the field of film coating valve provides a kind of prevent stupid nozzle adapter block structure of film coating valve, including adapter block, lower sealing washer and lock nut, the upper end of the adapter block is equipped with the matching installation thread with the lower end of flow channel stem, to make the upper end of the adapter block with the flow channel stem is connected by thread, the lower end opening of the adapter block is in contact with nozzle, the contact part of the adapter block and nozzle is equipped with prevent stupid structure, the lower sealing washer is arranged at the lower end opening of the adapter block, and with the end surface of the nozzle contact, the lower end of the adapter block is equipped with the lock thread matched with the lock nut, after the nozzle and adapter block butt joint, the lock nut is installed by thread rotation, the nozzle is fixed, simultaneously make the lower sealing washer stress deformation, play sealing effect;The utility model is limited by the adapter block and nozzle, to make the nozzle when dismounting need not additional angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of thin film coated valves, and more specifically, to a foolproof nozzle adapter block structure for a thin film coated valve. Background Technology

[0002] Thin-film coating valves are widely used in electronic circuit board protection (such as conformal coating), lithium battery electrode coating, semiconductor packaging, and other fields. Their core principle is that adhesive is sprayed through a specially structured nozzle to form a uniform, water curtain-like film, improving coating accuracy and material utilization. Due to the characteristics of the thin-film water curtain, its orientation needs to be fixed after each maintenance; otherwise, variations in performance will occur. Older thin-film coating valves relied primarily on metal end-face sealing for the nozzles, which could lead to leakage if machining precision was insufficient. Furthermore, the connection between the flow channel rod and the nozzle, secured by an external nut, was restrictive in applications requiring clearance for certain high-density components. In terms of setup time, the lack of foolproof measures to maintain a relatively stable position meant that older designs required additional time to adjust the nozzle direction each time the nozzle was replaced. Utility Model Content

[0003] The problem solved by this invention is how to provide a connector block structure with a foolproof mechanism, in which the nozzle maintains a change of 0° or 180° during each disassembly and assembly process, and does not require additional angle adjustment during use.

[0004] To address the aforementioned problems, this utility model provides a foolproof nozzle adapter block structure for a thin-film coating valve, comprising: an adapter block, a lower sealing gasket, and a locking nut. The upper end of the adapter block and the lower end of the flow channel rod are provided with matching mounting threads, allowing the upper end of the adapter block to be threadedly connected to the flow channel rod. The lower end opening of the adapter block contacts the nozzle. The contact portion between the adapter block and the nozzle is provided with a foolproof structure for limiting the movement of the adapter block and the nozzle, ensuring that the nozzle does not require additional angle adjustment during assembly and disassembly. The lower sealing gasket is located at the lower end opening of the adapter block and contacts the end face of the nozzle. The lower end of the adapter block is provided with a locking thread matching the locking nut. After the nozzle and the adapter block are mated, the locking nut is rotated through the threads to fix the nozzle, while simultaneously deforming the lower sealing gasket under force, thus achieving a sealing effect.

[0005] Furthermore, the foolproof structure includes a pair of matching outer protrusions and inner flats respectively provided at the contact portions of the adapter block and the nozzle.

[0006] Furthermore, an O-ring is fitted on the upper end of the adapter block. The O-ring is located below the mounting thread and is used to achieve a seal at the mounting thread.

[0007] Furthermore, an annular baffle is provided inside the internal flow channel of the adapter block. The lower sealing gasket contacts the lower surface of the baffle, and an upper sealing gasket is placed on the upper surface of the baffle. The upper and lower sealing gaskets are annular, and their centers have flow channel holes of the same size as the center of the baffle.

[0008] Furthermore, the upper part of the nozzle is a mounting part, and the lower part is a spraying part. The mounting part is in contact with the adapter block. The foolproof structure is disposed on the mounting part, and the cross-section of the mounting part is larger than the cross-section of the spraying part.

[0009] Furthermore, the upper part of the locking nut is a threaded part, and the lower part is a locking part. The inner side of the threaded part has an internal thread that matches the locking thread. The center of the locking part has a through hole that matches the cross-sectional size of the spraying part. When the threaded part is threadedly installed with the lower end of the adapter block, the locking part passes through the spraying part of the nozzle and applies force to the bottom of the mounting part to lock it.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention's foolproof nozzle adapter block is designed to be assembled as a standalone component, making replacement and maintenance very convenient. Furthermore, due to its structural design, the volume of the outer locking structure is significantly reduced. In situations where tall components are present or where clearance is required, the small rod diameter design of the foolproof nozzle adapter block demonstrates its superiority. A pair of outer protrusions and an inner flat section are provided at the contact points between the adapter block and the nozzle. This structure works together to achieve positioning, ensuring the nozzle maintains a 0° or 180° angle change during each assembly or disassembly, eliminating the need for additional angle adjustments. A lower sealing gasket is located at the lower opening of the adapter block, contacting the nozzle's end face. The locking nut applies force during installation, deforming the lower sealing gasket for a better seal. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the adapter block during installation and use according to an embodiment of this utility model; Figure 2 This is a cross-sectional schematic diagram of the adapter block structure during installation and use according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the foolproof structure of an embodiment of the present utility model; Figure 4 This is the overall principle structure of the adapter block in this embodiment of the utility model; Figure 5 This is a schematic diagram of the internal structure of the adapter block in an embodiment of the present invention; Figure 6 This is a schematic diagram of the principle structure of the nozzle in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the principle structure of the locking nut in an embodiment of this utility model.

[0012] Explanation of reference numerals in the attached figures: 1-Flow channel rod; 2-Adapter block; 3-O-ring; 4-Upper sealing gasket; 5-Lower sealing gasket; 6-Locking nut; 7-Nozzle; 8-Fake-proof structure; 21-Mounting thread; 22-Locking thread; 23-Partition; 61-Threaded mounting part; 62-Locking part; 71-Mounting part; 72-Spraying part; 81-Protrusion; 82-Flat part. Detailed Implementation

[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0016] like Figure 1-3As shown, this utility model provides a foolproof nozzle adapter block structure for a thin-film coating valve, including: an adapter block 2, a lower sealing gasket 5, and a locking nut 6. The upper end of the adapter block 2 is provided with a matching mounting thread 21 to the lower end of the flow channel rod 1, so that the upper end of the adapter block 2 and the flow channel rod 1 are connected by threads. The lower end opening of the adapter block 2 contacts the nozzle 7. The contact portion of the adapter block 2 and the nozzle 7 is provided with a foolproof structure 8 for limiting the position of the adapter block 2 and the nozzle 7, so that the nozzle 7 does not need to be adjusted by angle during disassembly and assembly. The lower sealing gasket 5 is provided at the lower end opening of the adapter block 2 and contacts the end face of the nozzle 7. The lower end of the adapter block 2 is provided with a locking thread 22 that matches the locking nut 6. After the nozzle 7 is connected to the adapter block 2, the locking nut 6 is installed by rotating the thread to fix the nozzle 7, while the lower sealing gasket 5 is deformed by force to achieve a sealing effect.

[0017] like Figure 3 As shown, the foolproof structure 8 includes a pair of matching outer protrusions 81 and inner flat parts 82 respectively provided at the contact parts of the adapter block 2 and the nozzle 7. The protrusions 81 and flat parts 82 cooperate to achieve the limiting, and the nozzle 7 will maintain a change of 0° or 180° during each disassembly and assembly process, so no additional angle adjustment is required in use.

[0018] like Figure 4 As shown, an O-ring 3 is also fitted on the upper end of the adapter block 2. The O-ring 3 is located below the mounting thread 21 and is used to achieve a seal at the mounting thread 21.

[0019] like Figure 2 and 5 As shown, an annular partition 23 is also provided in the internal flow channel of the adapter block 2. The lower sealing gasket 5 contacts the lower surface of the partition 23. An upper sealing gasket 4 is also placed on the upper surface of the partition 23. The upper sealing gasket 4 and the lower sealing gasket 5 are annular, and their centers have flow channel holes of the same size as the center of the partition 23. The adapter block 2 and the flow channel rod 1 are both hollow flow channels. In use, the externally applied ejector pin will enter through the flow channel rod 1 and the internal flow channel of the adapter block 2 and reach the upper sealing gasket 4. In the internal flow channel, the upper sealing gasket 4 can contact the head of the ejector pin to realize the opening and closing valve function.

[0020] like Figure 6 As shown, the upper part of the nozzle 7 is the mounting part 71, and the lower part is the spraying part 72. The mounting part 71 is in contact with the adapter block 2. The foolproof structure 8 is disposed on the mounting part 71. The cross-section of the mounting part 71 is larger than the cross-section of the spraying part 72.

[0021] like Figure 7As shown, the upper part of the locking nut 6 is a threaded part 61, and the lower part is a locking part 62. The inner side of the threaded part 61 has an internal thread that matches the locking thread 22. The center of the locking part 62 has a through hole that matches the cross-sectional size of the spraying part 72. When the threaded part 61 is threadedly installed with the lower end of the adapter block 2, the locking part 62 passes through the spraying part 72 of the nozzle 7 and applies force to the bottom of the mounting part 71 to lock it.

[0022] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A foolproof nozzle adapter block structure for a thin-film coated valve, characterized in that, include: The adapter block (2), lower sealing gasket (5), and locking nut (6) are provided. The upper end of the adapter block (2) and the lower end of the flow channel rod (1) are provided with matching mounting threads (21) so that the upper end of the adapter block (2) and the flow channel rod (1) are connected by threads. The lower end opening of the adapter block (2) contacts the nozzle (7). The contact part of the adapter block (2) and the nozzle (7) is provided with a foolproof structure (8) for limiting the position of the adapter block (2) and the nozzle (7) so that the nozzle ( 7) No additional angle adjustment is required during disassembly and assembly. The lower sealing gasket (5) is located at the lower opening of the adapter block (2) and contacts the end face of the nozzle (7). The lower end of the adapter block (2) is provided with a locking thread (22) that matches the locking nut (6). After the nozzle (7) is connected to the adapter block (2), the locking nut (6) is installed by rotating the thread to fix the nozzle (7) and at the same time, the lower sealing gasket (5) is deformed by force to achieve a sealing effect.

2. The anti-foolproof nozzle adapter block structure of the thin-film coating valve according to claim 1, characterized in that, The foolproof structure (8) includes a pair of matching outer protrusions (81) and inner flats (82) respectively provided at the contact portions of the adapter block (2) and the nozzle (7).

3. The anti-foolproof nozzle adapter block structure of the thin-film coating valve according to claim 1, characterized in that, The upper end of the adapter block (2) is also fitted with an O-ring (3), which is located below the mounting thread (21) and is used to achieve a seal at the mounting thread (21).

4. The anti-foolproof nozzle adapter block structure of the thin-film coating valve according to claim 1, characterized in that, The internal flow channel of the adapter block (2) is also provided with an annular partition (23). The lower sealing gasket (5) contacts the lower surface of the partition (23). An upper sealing gasket (4) is also placed on the upper surface of the partition (23). The upper sealing gasket (4) and the lower sealing gasket (5) are annular, and their centers have flow channel holes of the same size as the center of the partition (23).

5. The anti-foolproof nozzle adapter block structure of the thin-film coating valve according to claim 1, characterized in that, The upper part of the nozzle (7) is the mounting part (71), and the lower part is the spraying part (72). The mounting part (71) is in contact with the adapter block (2). The foolproof structure (8) is provided on the mounting part (71). The cross-section of the mounting part (71) is larger than the cross-section of the spraying part (72).

6. The anti-fool nozzle adapter block structure of the thin-film coating valve according to claim 5, characterized in that, The upper part of the locking nut (6) is a threaded part (61), and the lower part is a locking part (62). The inner side of the threaded part (61) has an internal thread that matches the locking thread (22). The center of the locking part (62) has a through hole that matches the cross-sectional size of the spraying part (72). When the threaded part (61) is threadedly installed with the lower end of the adapter block (2), the locking part (62) passes through the spraying part (72) of the nozzle (7) and applies force to the bottom of the mounting part (71) to lock it.

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