一种弹簧复位双滤光片切换器
By introducing a limiting cylinder, a limiting piston rod, a contact spring, and a damping fluid into the dual filter switcher, combined with an auxiliary support base and a contact pin structure, automatic reset and precise positioning of the filter are achieved. This solves the problem of unstable filter switching in the existing technology and improves the stability and accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING XINGYING OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dual-filter switchers rely on manual or friction positioning after filter switching, which can easily lead to inaccurate positioning, failure to return to the original position, and large inertial impact. Prolonged use can easily damage the device, making operation inconvenient and prone to incorrect switching.
The device is equipped with a limiting cylinder, a limiting piston rod, a contact spring, and a damping fluid filling structure to achieve buffer control and automatic reset during filter switching. It also achieves precise mechanical positioning and automatic locking through an auxiliary support base, a contact pin, and an arc-shaped guide groove structure.
It improves the stability and reliability of filter switching, avoids optical errors or optical axis misalignment caused by inaccurate positioning in traditional devices, and ensures that the filter can be automatically and smoothly reset in high-frequency operation.
Smart Images
Figure CN224519023U_ABST
Abstract
Claims
1. A spring-return dual filter switcher comprising an upper shell (1), a lower shell (2), a switching seat (3) and a filter body (4), characterized in that: The upper shell (1) is installed on the upper side of the lower shell (2), the switching seat (3) is located in the middle of the upper shell (1) and the lower shell (2), the top outer wall of the switching seat (3) is symmetrically embedded with the filter body (4), and the switching slot is left between the upper shell (1) and the lower shell (2) for the rotating installation of the switching seat (3); The plug-in positioning assembly (5) is connected and installed between the upper shell (1) and the lower shell (2), and the switching control assembly (6) is connected and installed between the upper shell (1) and the switching seat (3); The plug-in positioning assembly (5) comprises a positioning T-shaped block (501), a positioning mounting seat (502) and a positioning T-shaped groove (503), the side outer wall of the upper shell (1) is fixedly provided with the positioning T-shaped block (501), the side outer wall of the middle position of the lower shell (2) is fixedly provided with the positioning mounting seat (502), and the top outer wall of the middle position of the positioning mounting seat (502) is correspondingly provided with the positioning T-shaped groove (503) for the plug-in installation of the positioning T-shaped block (501); The cylindrical mounting groove (504) is slidably connected with the fastening bolt (506), and the fastening bolt (506) is threadedly connected with the butt joint screw groove (505).
2. A spring-return dual filter switch according to claim 1, characterized in that: The switching control assembly (6) comprises a rotating disc (601), a support (602) and a groove block (603), the top outer wall of the upper shell (1) is rotatably provided with the rotating disc (601), the bottom outer wall of the rotating disc (601) is fixedly provided with the support (602), the lower end of the support (602) penetrates through the rotating disc (601) and is located below the rotating disc (601), the top outer wall of the middle position of the switching seat (3) is embeddedly provided with the groove block (603), and the groove in the groove block (603) is matched with the shape of the support (602).
3. A spring-return dual filter switch according to claim 2, characterized in that: The side outer wall of the groove block (603) and the switching seat (3) is throughly provided with the positioning through groove (604), the side outer wall of the support (602) is throughly provided with the butt joint through groove (605) in position, the inside of the positioning through groove (604) and the butt joint through groove (605) is slidably provided with the pin shaft (606), the annular thread groove is formed in the annular face outer wall of the terminal position of the pin shaft (606), and the outside of the annular thread groove is threadedly provided with the blocking cap (607).
4. A spring-return dual filter switch according to claim 3, characterized in that: The inside of the lower shell (2) is embeddedly installed with a cylindrical mounting seat (701), the bottom end outer wall of the groove block (603) is fixedly installed with an auxiliary supporting seat (702), the inside of the cylindrical mounting seat (701) is provided with a positioning placing groove (703) for rotatably installing the auxiliary supporting seat (702), the side inner wall of the cylindrical mounting seat (701) at the position of the positioning placing groove (703) is symmetrically and through-provided with a cylindrical placing groove (704), the side inner wall of the cylindrical placing groove (704) at the groove bottom position is fixedly installed with a limiting cylinder (705), the inside of the limiting cylinder (705) is slidably installed with a limiting piston rod (706), the side outer wall of the limiting piston rod (706) and the cylinder bottom inner wall of the limiting cylinder (705) are connected and installed with a resisting spring (707), the extending end of the limiting piston rod (706) is arranged outside the limiting cylinder (705), and the extending end of the limiting piston rod (706) is connected with the side outer wall of the resisting clamping column (708), the two side outer walls of the auxiliary supporting seat (702) at the annular surface position are provided with resisting clamping grooves (709), and the side outer wall of the auxiliary supporting seat (702) at the position of the resisting clamping groove (709) is arranged in an arc-shaped structure.
5. A spring-return dual filter changer according to claim 4, characterized in that: The resisting clamping column (708) is combined by a resisting part and a positioning part, the resisting part of the resisting clamping column (708) is arranged in a hemispherical structure, the positioning part of the resisting clamping column (708) is arranged in a cylindrical structure, the side outer wall of the resisting clamping column (708) at the position of the positioning part is symmetrically and fixedly installed with a limiting supporting block (7010), the inside of the cylindrical mounting seat (701) is correspondingly provided with a strip-shaped supporting groove (7011) for slidably installing the limiting supporting block (7010), and the inside space of the strip-shaped supporting groove (7011) and the cylindrical placing groove (704) are through.
6. A spring-return dual filter switch according to claim 5, characterized in that: The inside of the limiting cylinder (705) is filled with damping liquid, and the side outer wall of the limiting piston rod (706) at the piston disc position is circumferentially and through-provided with a cylindrical overflow groove.