Sealing structure of video information acquisition board
By designing a sealing structure with components such as a fixing plate, sealing gasket, limiting ring, and spring on the video information acquisition board, the problem of moisture ingress caused by poor sealing is solved, achieving better sealing performance and stability, and protecting the components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LEITENG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-28
AI Technical Summary
The video information acquisition board has poor sealing during use, which allows moisture to enter the interior, affecting the stability and lifespan of the components.
A sealing structure including a fixed plate, sealing gasket, limiting ring, spring and other components was designed. The spring force drives the sealing gasket to fit with the acquisition plate to increase the sealing performance, and the limiting mechanism keeps the acquisition plate stable.
It effectively improves the sealing of the video information acquisition board, prevents moisture from entering, protects internal components, ensures stable operation of the equipment, and extends its service life.
Smart Images

Figure CN224178441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of video information acquisition board technology, specifically a sealing structure for a video information acquisition board. Background Technology
[0002] A video information acquisition board is a hardware device used to acquire, process, and transmit video signals from a video source. It is commonly used in security monitoring, intelligent transportation, video conferencing, live streaming, and other fields. This board supports multiple video signal input methods, including analog video signals (such as CVBS, VGA) and digital video signals (such as HDMI, SDI, etc.). It can acquire video data in real time and preprocess it, such as resolution conversion, image denoising, and color adjustment, to ensure that the output video quality meets requirements. According to a utility model patent with authorization announcement number CN221995823U, a video information acquisition board installation structure is disclosed, belonging to the field of video information acquisition board installation. This addresses the problem of repeatedly tightening and loosening bolts to fix the signal circuit board, a cumbersome process where excessively tight or loose bolts affect the fixing effect and reduce flexibility.
[0003] Poor sealing of video information acquisition boards during use can easily allow moisture to enter, affecting their normal operation and damaging internal components. This problem mainly stems from inadequate sealing design or unsuitable material selection, resulting in insufficient isolation between the board and the external environment. When the equipment is exposed to a humid environment for extended periods, moisture gradually penetrates, affecting circuit stability and component lifespan. Moisture entering the interior can cause not only short circuits and corrosion but also overheating or performance degradation of components, and in severe cases, even complete equipment failure. Utility Model Content
[0004] The purpose of this utility model is to provide a sealing structure for a video information acquisition board, which solves the problem that the sealing effect of the video information acquisition board is poor during use, which easily leads to moisture entering the inside of the video information acquisition board and causing damage to its internal components.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for a video information acquisition board, comprising a mounting shell, an acquisition board slidably connected inside the mounting shell, a fixing plate fixedly connected inside the mounting shell, sealing gaskets at both ends of the fixing plate, a connecting rod fixedly connected inside the fixing plate, the connecting rod slidably connected to the sealing gasket, a limit ring fixedly connected inside the sealing gasket, a first spring provided inside the sealing gasket, and a limit mechanism provided on the mounting shell.
[0006] Preferably, the sealing gasket is slidably connected to the mounting shell, and the sealing gasket is in contact with the acquisition plate. The design of the sealing gasket can increase the sealing performance between the acquisition plate and the mounting shell.
[0007] Preferably, the limiting ring is slidably connected to the connecting rod, and the limiting ring is in contact with the fixing plate. Through the design of the limiting ring, the sealing gasket can be limited.
[0008] Preferably, one end of the first spring contacts the connecting rod, and the other end of the first spring contacts the sealing gasket. The design of the first spring can drive the sealing gasket to fit with the acquisition plate.
[0009] Preferably, the limiting mechanism includes a limiting frame, which is slidably connected inside the mounting shell. A locking block is fixedly connected to the lower end of the limiting frame. A guide rod is fixedly connected inside the limiting frame. A guide block is fixedly connected to the outer side of the mounting shell. The guide block is slidably connected to the limiting frame and to the guide rod. A second spring is provided on the outer side of the guide rod. Through the design of the limiting mechanism, the acquisition plate can remain stable after installation.
[0010] Preferably, the card block is slidably connected to the mounting shell and to the acquisition plate. The design of the card block can limit the position of the acquisition plate.
[0011] Preferably, one end of the second spring contacts the guide block, and the other end of the second spring contacts the limiting frame. Through the design of the second spring, the limiting frame can be driven to limit the acquisition plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, by setting up components such as a fixing plate, a first spring, and a sealing gasket, can drive the sealing gasket to fit with the acquisition plate through the elastic force of the first spring, thereby effectively increasing the sealing performance between the acquisition plate and the mounting shell. This solves the problem that the video information acquisition plate has poor sealing performance during use, which easily leads to moisture entering the inside of the video information acquisition plate and causing damage to its internal components.
[0014] 2. This utility model, by setting up components such as a limiting frame, a second spring, and a locking block, can use the elastic force of the second spring to drive the locking block on the limiting frame to slide into the acquisition plate, thereby limiting the acquisition plate and keeping it stable during use. Attached Figure Description
[0015] Figure 1 This is a three-dimensional view of the overall structure of this utility model;
[0016] Figure 2 For the present utility model Figure 1A three-dimensional view of the local structure;
[0017] Figure 3 For the present utility model Figure 1 A front sectional view;
[0018] Figure 4 For the present utility model Figure 1 Side sectional view;
[0019] Figure 5 For the present utility model Figure 4 Enlarged view of part A of the structure.
[0020] In the diagram: 1. Mounting shell; 2. Acquisition plate; 3. Fixing plate; 31. Sealing gasket; 32. Connecting rod; 33. Limiting ring; 34. First spring; 4. Limiting mechanism; 41. Limiting frame; 42. Locking block; 43. Guide rod; 44. Guide block; 45. Second spring. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-5 A sealing structure for a video information acquisition board includes a mounting shell 1, an acquisition board 2 slidably connected inside the mounting shell 1, a fixing plate 3 fixedly connected inside the mounting shell 1, and sealing gaskets 31 in contact at both ends of the fixing plate 3. The sealing gaskets 31 are slidably connected to the mounting shell 1 and in contact with the acquisition board 2. The design of the sealing gaskets 31 can increase the sealing between the acquisition board 2 and the mounting shell 1.
[0023] Please see Figure 2-5 A connecting rod 32 is fixedly connected inside the fixing plate 3. The connecting rod 32 is slidably connected to the sealing gasket 31. A limiting ring 33 is fixedly connected inside the sealing gasket 31. The limiting ring 33 is slidably connected to the connecting rod 32 and contacts the fixing plate 3. Through the design of the limiting ring 33, the sealing gasket 31 can be limited. A first spring 34 is provided inside the sealing gasket 31. One end of the first spring 34 contacts the connecting rod 32, and the other end of the first spring 34 contacts the sealing gasket 31. Through the design of the first spring 34, the sealing gasket 31 can be driven to fit with the collection plate 2. A limiting mechanism 4 is provided on the mounting shell 1.
[0024] Please see Figure 2-5The limiting mechanism 4 includes a limiting frame 41. The limiting frame 41 is slidably connected inside the mounting shell 1. A locking block 42 is fixedly connected to the lower end of the limiting frame 41. The locking block 42 is slidably connected to the mounting shell 1 and to the acquisition plate 2. The locking block 42 can limit the acquisition plate 2. A guide rod 43 is fixedly connected inside the limiting frame 41. A guide block 44 is fixedly connected to the outside of the mounting shell 1. The guide block 44 is slidably connected to the limiting frame 41 and to the guide rod 43. A second spring 45 is provided on the outside of the guide rod 43. One end of the second spring 45 contacts the guide block 44, and the other end contacts the limiting frame 41. The second spring 45 can drive the limiting frame 41 to limit the acquisition plate 2. The limiting mechanism 4 can keep the acquisition plate 2 stable after installation.
[0025] The specific implementation process of this utility model is as follows: In use, by moving the limiting frame 41 away from the mounting shell 1, the limiting frame 41 drives the guide rod 43 to slide within the guide block 44, causing the limiting frame 41 to press against the second spring 45. Then, the collecting plate 2 is slid into the mounting shell 1, causing the collecting plate 2 to move the sealing gasket 31, causing the sealing gasket 31 to slide on the connecting rod 32, causing the sealing gasket 31 to press against the first spring 34. The elastic force of the first spring 34 can then cause the sealing gasket 31 to fit against the collecting plate 2, thereby effectively increasing the sealing between the collecting plate 2 and the mounting shell 1. Then, the limiting frame 41 is released, and the elastic force of the second spring 45 can then drive the limiting frame 41 to move, causing the limiting frame 41 to drive the locking block 42 to slide into the collecting plate 2, thus limiting the collecting plate 2 and keeping it stable after installation.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealing structure for a video information acquisition board, comprising a mounting shell (1), characterized in that: The mounting shell (1) is slidably connected to a collection plate (2), and the mounting shell (1) is fixedly connected to a fixing plate (3). Both ends of the fixing plate (3) are in contact with sealing gaskets (31). The fixing plate (3) is fixedly connected to a connecting rod (32), and the connecting rod (32) is slidably connected to the sealing gasket (31). The sealing gasket (31) is fixedly connected to a limit ring (33). The sealing gasket (31) is provided with a first spring (34). The mounting shell (1) is provided with a limit mechanism (4).
2. The sealing structure of a video information acquisition board according to claim 1, characterized in that: The sealing gasket (31) is slidably connected to the mounting shell (1), and the sealing gasket (31) is in contact with the acquisition plate (2).
3. The sealing structure of a video information acquisition board according to claim 1, characterized in that: The limiting ring (33) is slidably connected to the connecting rod (32), and the limiting ring (33) is in contact with the fixing plate (3).
4. The sealing structure of a video information acquisition board according to claim 1, characterized in that: One end of the first spring (34) is in contact with the connecting rod (32), and the other end of the first spring (34) is in contact with the sealing gasket (31).
5. The sealing structure of a video information acquisition board according to claim 1, characterized in that: The limiting mechanism (4) includes a limiting frame (41), which is slidably connected inside the mounting shell (1). A locking block (42) is fixedly connected to the lower end of the limiting frame (41). A guide rod (43) is fixedly connected inside the limiting frame (41). A guide block (44) is fixedly connected to the outer side of the mounting shell (1). The guide block (44) is slidably connected to the limiting frame (41). The guide block (44) is slidably connected to the guide rod (43). A second spring (45) is provided on the outer side of the guide rod (43).
6. The sealing structure of a video information acquisition board according to claim 5, characterized in that: The card block (42) is slidably connected to the mounting shell (1), and the card block (42) is slidably connected to the acquisition plate (2).
7. The sealing structure of a video information acquisition board according to claim 5, characterized in that: One end of the second spring (45) is in contact with the guide block (44), and the other end of the second spring (45) is in contact with the limit frame (41).
Citation Information
Patent Citations
Mounting structure of video information acquisition board
CN221995823U