A metal shell corrosion-resistant fastener

Abstract

The utility model provides a metal shell corrosion -resistant fastener relates to metal shell corrosion -resistant fastener technical field, including first metal shell, first metal shell one side is provided with second metal shell, the outer surface fixedly connected with connecting plate of second metal shell, the outer surface of connecting plate is opened with mounting hole, the inner wall sliding connection with connecting piece of mounting hole. The utility model, set up's mounting post, can be inserted in fixed hole and mounting hole, thereby convenient for moving piece and be stuck in the outer surface of connecting plate, the bottom plate of setting, one side makes the first rotating plate and second rotating plate of both sides one side completely contact bottom plate, can present horizontal state to first rotating plate and second rotating plate, thereby make the other side of first rotating plate and second rotating plate closely adhere to the outer surface of connecting plate, form the clearance between the other side and the moving mouth, when the sliding column moves to first metal shell direction, can be received two rotating plates to the moving storehouse of mounting post.

Description

Technical Field

[0001] This utility model relates to the field of metal shell corrosion-resistant fasteners, and in particular to a metal shell corrosion-resistant fastener. Background Technology

[0002] In industrial equipment, electronic devices, and transportation machinery, metal casings are widely used to protect internal core components from external environmental interference due to their high strength, high rigidity, and excellent protective performance. The stability of their connection, ease of disassembly and assembly, and corrosion resistance directly determine the overall protective effect and service life of the metal casing. Current traditional fasteners (such as bolts and rivets), especially those installed for opening and maintaining internal structures, require frequent disassembly and assembly to maintain the components inside the metal casing. Repeated disassembly and assembly can easily lead to thread wear, stripping, and loosening of the connection. In salt spray and humid environments, they are prone to corrosion, which not only reduces mechanical strength and increases the difficulty of disassembly and assembly but may also contaminate internal components. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies. Current traditional fasteners (such as bolts and rivets), especially those installed for opening and maintaining internal structures, require frequent disassembly and assembly to maintain components inside the metal shell. Repeated disassembly and assembly can easily lead to thread wear and stripping, causing loose connections. They are also prone to corrosion in salt spray and humid environments, which not only reduces mechanical strength and increases the difficulty of disassembly and assembly, but may also contaminate internal components. This invention provides a corrosion-resistant fastener with a metal shell.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a metal-shell corrosion-resistant fastener, comprising a first metal shell, a second metal shell disposed on one side of the first metal shell, a connecting plate fixedly connected to the outer surface of the second metal shell, an installation hole formed on the outer surface of the connecting plate, a connector slidably connected to the inner wall of the installation hole, a movable component disposed inside the connector, the connector comprising an installation column, a movable chamber formed inside the installation column, a movable opening formed at the bottom of the movable chamber, a base plate fixedly connected to the bottom of the movable opening, the movable component comprising a sliding column, a first rotating plate rotatably connected to the outer surface of the sliding column, a second rotating plate disposed on one side of the first rotating plate, an extension rod fixedly connected to the outer surface of the sliding column, and a sliding disc fixedly connected to one end of the extension rod.

[0005] In a preferred embodiment, both ends of the sliding column are slidably connected to the inner wall of the movable compartment, and one side of the second rotating plate is rotatably sleeved on the outer surface of the sliding column.

[0006] In a preferred embodiment, the outer surface of the sliding disk is slidably connected to the inner wall of the movable compartment, and two movable ports are symmetrically opened, with the inner walls of the two movable ports respectively slidably connected to the outer surfaces of the first rotating plate and the second rotating plate.

[0007] In a preferred embodiment, one end of the mounting post has a circular hole, and a fixing member is slidably connected to the inner wall of the circular hole.

[0008] In a preferred embodiment, the fastener includes a push post, the outer surface of which is slidably connected to the inner wall of the circular hole.

[0009] In a preferred embodiment, a nut is fixedly connected to one end of the push post, and the inner wall of the nut is threadedly connected to the outer surface of the mounting post.

[0010] In a preferred embodiment, a spring is provided on the outer surface of the pusher, and one end of the spring is fixedly connected to the outer surface of the sliding disk.

[0011] In a preferred embodiment, a fixing hole is provided on the outer surface of the first metal shell, and the fixing hole is slidably connected to the outer surface of the mounting post.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention features a mounting post that can be inserted into the fixing hole and mounting hole, facilitating the locking of the moving part onto the outer surface of the connecting plate. The base plate ensures that one side of the first and second rotating plates is in full contact with the base plate, maintaining a horizontal position and allowing the other side of the first and second rotating plates to fit tightly against the outer surface of the connecting plate. Furthermore, a gap is formed between the base plate and the moving opening, allowing the two rotating plates to be retracted into the moving compartment of the mounting post when the sliding post moves towards the first metal shell, preventing interference with the mounting post's disengagement from the mounting hole and fixing hole. The extension rod and sliding plate can be pushed to move the first and second rotating plates towards the base plate. The fixing component, used in conjunction with the first and second rotating plates, ensures the mounting post is installed and fixed in position, preventing loosening. This avoids the need for direct bolt connection to the mounting hole, thus preventing the deterioration of the mounting hole and reduced bolt connection caused by repeated bolt removal for maintenance of the internal components of the metal shell. The spring facilitates easy disassembly and maintenance; after the nut is loosened, the extension rod is pulled backward by the spring, automatically repositioning the first and second rotating plates. Attached Figure Description

[0013] Figure 1 The left-side perspective view of a corrosion-resistant metal shell fastener provided by this utility model.

[0014] Figure 2 This is a right-side perspective view of a corrosion-resistant metal shell fastener provided by this utility model.

[0015] Figure 3 Provided by this utility model Figure 2 A magnified 3D view of the structure at point A in the middle.

[0016] Figure 4 This utility model provides a three-dimensional structural view of the connector and fastener of a metal shell corrosion-resistant fastener.

[0017] Figure 5 This is a three-dimensional, exploded view of the moving part of a metal-cased corrosion-resistant fastener provided by this utility model.

[0018] Legend: 1. First metal shell; 2. Second metal shell; 3. Connecting plate; 4. Connector; 5. Moving part; 6. Fixing part; 4. Connecting parts; 41. Mounting column; 42. Moving compartment; 43. Moving port; 44. Base plate; 5. Moving component; 51. Sliding column; 52. First rotating plate; 53. Second rotating plate; 54. Extension rod; 55. Sliding disk; 6. Fastener; 61. Push post; 62. Nut; 63. Spring. Detailed Implementation

[0019] 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.

[0020] Example 1 like Figure 1-5As shown, this utility model provides a technical solution: a metal shell corrosion-resistant fastener, including a first metal shell 1, a second metal shell 2 disposed on one side of the first metal shell 1, a connecting plate 3 fixedly connected to the outer surface of the second metal shell 2, an installation hole opened on the outer surface of the connecting plate 3, a connecting member 4 slidably connected to the inner wall of the installation hole, a movable member 5 disposed inside the connecting member 4, the connecting member 4 including a mounting post 41, a movable chamber 42 opened inside the mounting post 41, a movable opening 43 opened at the bottom of the movable chamber 42, a base plate 44 fixedly connected to the bottom of the movable opening 43, the movable member 5 including a sliding post 51, a first rotating plate rotatably connected to the outer surface of the sliding post 51. 52. A second rotating plate 53 is provided on one side of the first rotating plate 52. An extension rod 54 is fixedly connected to the outer surface of the sliding column 51. A sliding disk 55 is fixedly connected to one end of the extension rod 54. Both ends of the sliding column 51 are slidably connected to the inner wall of the moving chamber 42. One side of the second rotating plate 53 is rotatably sleeved on the outer surface of the sliding column 51. The outer surface of the sliding disk 55 is slidably connected to the inner wall of the moving chamber 42. Two moving ports 43 are symmetrically opened. The inner walls of the two moving ports 43 are slidably connected to the outer surfaces of the first rotating plate 52 and the second rotating plate 53, respectively. A fixing hole is opened on the outer surface of the first metal shell 1. The fixing hole is slidably connected to the outer surface of the mounting column 41.

[0021] In this embodiment, by setting the mounting post 41, it can be inserted into the fixing hole and the mounting hole, thereby facilitating the locking of the moving part 5 onto the outer surface of the connecting plate 3. The moving opening 43 has its inner wall with the side near the connecting plate 3 in a horizontal position, and the side away from it extends through to one end of the mounting post 41. The base plate 44 is set so that when one side of the first rotating plate 52 and the second rotating plate 53 on both sides is fully in contact with the base plate 44, it can be in a horizontal state, thereby making the other side of the first rotating plate 52 and the second rotating plate 53 tightly fit against the outer surface of the connecting plate 3. On the other hand, a gap is formed between the base plate 44 and the moving opening 43, so that when the sliding post 51 moves towards the first metal shell 1, the two rotating plates can be stored in the moving compartment 42 of the mounting post 41, preventing the mounting post 41 from disengaging from the mounting hole and the fixing hole. The extension rod 54 and the sliding plate 55 can be pushed to move the first rotating plate 52 and the second rotating plate 53 towards the base plate 44, while gradually extending out of the moving opening 43 and gradually tightly fitting against the outer surface of the connecting plate 3.

[0022] Example 2 like Figure 3-4As shown, a circular hole is provided at one end of the mounting post 41, and a fixing member 6 is slidably connected to the inner wall of the circular hole. The fixing member 6 includes a push post 61, the outer surface of the push post 61 is slidably connected to the inner wall of the circular hole, a nut 62 is fixedly connected to one end of the push post 61, the inner wall of the nut 62 is threadedly connected to the outer surface of the mounting post 41, and a spring 63 is provided on the outer surface of the push post 61. One end of the spring 63 is fixedly connected to the outer surface of the sliding plate 55.

[0023] In this embodiment, the fixing member 6 is used in conjunction with the first rotating plate 52 and the second rotating plate 53. While the nut 62 is turned, the sliding plate 55 is pushed by the push post 61. The first rotating plate 52 and the second rotating plate 53 are attached to the outer surface of the connecting plate 3. At the same time, the nut 62 is locked at the other end of the mounting post 41, realizing the installation and position fixation of the mounting post 41, which will not loosen. At the same time, it avoids the direct connection of the mounting hole with bolts, thereby avoiding the consequences of repeated bolt removal to maintain the internal components of the metal shell, which would lead to the deterioration of the mounting hole and the reduction of the bolt connection. The spring 63 is provided so that when the nut 62 is unscrewed during disassembly and maintenance, the extension rod 54 is pulled backward by the spring 63, thereby automatically moving the first rotating plate 52 and the second rotating plate 53.

[0024] Working principle: like Figure 1-5 As shown, when actually installing the corrosion-resistant fastener with the metal casing, firstly align the first metal casing 1 and the second metal casing 2 with the preset installation position, so that the mounting hole on the connecting plate 3 and the fixing hole of the first metal casing 1 are coaxial. Then, insert the mounting post 41 of the connecting member 4 into the mounting hole and the fixing hole. At this time, the first rotating plate 52 and the second rotating plate 53 of the moving member 5 are not under force and are stored in the moving chamber 42, so that the mounting post 41 can pass through smoothly. Then, by tightening the nut 62 of the fixing member 6, it moves along the thread on the outer surface of the mounting post 41 towards the sliding plate 55. The nut 62 drives the push post 61 to move synchronously, and the push post 61 compresses the tension spring. 63. Push the sliding disk 55 to slide towards the bottom plate 44 in the moving chamber 42. The sliding disk 55 drives the sliding column 51 to move through the extension rod 54. During the sliding process of the two ends of the sliding column 51 along the inner wall of the moving chamber 42, the first rotating plate 52 and the second rotating plate 53 connected to its outer surface slide outward of the moving port 43 with the rotating connection as the axis under the pushing action of the sliding column 51 until the bottom of the first rotating plate 52 and the second rotating plate 53 contact the bottom plate 44 and are in a horizontal state. At this time, the outer surfaces of the two are tightly attached to the outer surface of the connecting plate 3. With the limiting effect of the nut 62 on the mounting column 41, a stable connection between the first metal shell 1 and the second metal shell 2 is achieved. When disassembly is required, loosen the nut 62 in the reverse direction. The squeezing force of the push post 61 on the spring 63 disappears, and the spring 63 resets, causing the sliding plate 55, extension rod 54 and sliding post 51 to move in the opposite direction. After the first rotating plate 52 and the second rotating plate 53 lose their pushing force, they rotate into the moving chamber 42 for storage, so that the mounting post 41 can be pulled out from the mounting hole and the fixing hole, thus completing the disassembly operation.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A corrosion-resistant fastener with a metal casing, comprising a first metal casing (1), characterized in that: A second metal shell (2) is provided on one side of the first metal shell (1). A connecting plate (3) is fixedly connected to the outer surface of the second metal shell (2). An installation hole is provided on the outer surface of the connecting plate (3). A connector (4) is slidably connected to the inner wall of the installation hole. A moving part (5) is provided inside the connector (4). The connector (4) includes a mounting column (41). A moving chamber (42) is provided inside the mounting column (41). A moving opening (43) is provided at the bottom of the moving chamber (42). A base plate (44) is fixedly connected to the bottom of the moving opening (43). The moving part (5) includes a sliding column (51). A first rotating plate (52) is rotatably connected to the outer surface of the sliding column (51). A second rotating plate (53) is provided on one side of the first rotating plate (52). An extension rod (54) is fixedly connected to the outer surface of the sliding column (51). A sliding disk (55) is fixedly connected to one end of the extension rod (54).

2. The metal casing corrosion-resistant fastener according to claim 1, characterized in that: Both ends of the sliding column (51) are slidably connected to the inner wall of the moving chamber (42), and one side of the second rotating plate (53) is rotatably sleeved on the outer surface of the sliding column (51).

3. The metal casing corrosion-resistant fastener according to claim 1, characterized in that: The outer surface of the sliding disk (55) is slidably connected to the inner wall of the moving chamber (42). Two moving ports (43) are symmetrically opened, and the inner walls of the two moving ports (43) are slidably connected to the outer surfaces of the first rotating plate (52) and the second rotating plate (53), respectively.

4. The metal casing corrosion-resistant fastener according to claim 1, characterized in that: One end of the mounting post (41) has a circular hole, and a fastener (6) is slidably connected to the inner wall of the circular hole.

5. A corrosion-resistant fastener with a metal casing according to claim 4, characterized in that: The fastener (6) includes a push post (61), the outer surface of which is slidably connected to the inner wall of the circular hole.

6. A corrosion-resistant fastener with a metal casing according to claim 5, characterized in that: One end of the push post (61) is fixedly connected to a nut (62), and the inner wall of the nut (62) is threadedly connected to the outer surface of the mounting post (41).

7. A metal casing corrosion-resistant fastener according to claim 5, characterized in that: A spring (63) is provided on the outer surface of the pusher (61), and one end of the spring (63) is fixedly connected to the outer surface of the sliding disk (55).

8. A corrosion-resistant fastener with a metal casing according to claim 1, characterized in that: The outer surface of the first metal shell (1) is provided with a fixing hole, and the fixing hole is slidably connected to the outer surface of the mounting post (41).

Images