Guiding pin with waterproof and positioning functions for automobile front cover lock
By designing a flange disc on the guide pin, waterproofing and positioning functions are achieved through contact with the guide hole. This solves the manufacturing difficulties in the existing technology, improves the reliability and production efficiency of the car hood lock, and reduces costs.
CN223937865UActive Publication Date: 2026-02-24TAICANG CHAOYI SCREW IND CO LTD
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Patent Information
- Application Number
- CN202520467841.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Technical Problem
Traditional car hood locks have guide pins that require precise matching for waterproofing and positioning, are difficult to manufacture, costly, and prone to wear, which affects system reliability and service life.
Method used
Design a guide pin with a flange disc. The flange disc contacts the guide hole to form a seal, achieving waterproof function. The fixed position of the disc provides positioning function, reducing the requirements for precision fit.
Benefits of technology
This design prevents water vapor from entering even with non-precision fit, avoiding damage to internal components due to moisture, thus improving the lifespan of the casing, increasing production efficiency, and reducing production costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a guide pin with waterproof and positioning functions for an automobile front cover lock, which comprises a guide pin body, and a flange disc is arranged at one end of the guide pin body; a connecting area is arranged at one end of the guide pin body away from the flange disc; the connecting area is provided with a first chamfer; a connecting block is arranged on the side, away from the flange disc, of the first chamfer. Second chamfers are arranged at the ends, away from the flange disc, of the connecting blocks; the diameter of the flange disc is larger than or equal to that of the guide hole end face of the guide pin body. The guide pin body can do axial reciprocating motion along the mounted guide hole; when the guide pin body does not do axial reciprocating motion, the flange disc just covers the end face of a guide hole where the guide pin body is installed. According to the guide pin with the waterproof and positioning functions for the automobile front cover lock, through the sealing state naturally formed when the flange disc makes contact with the guide hole, the waterproof function is achieved under the condition that the guide pin and the guide hole are not very precisely matched, and the production precision requirement is lowered.
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