What should I do if the key cannot fit into the lock? Hot topics and solutions across the Internet for 10 days
Recently, the problem of keys not being inserted into locks has become one of the hot topics of discussion on social platforms, with many netizens sharing their personal experiences and solutions. The following is a compilation of relevant hot content across the Internet in the past 10 days, combined with structured data and practical suggestions to help you quickly solve this trouble.
1. Analysis of causes of popular problems

| Reason type | Proportion (discussion data of the entire network) | Typical scenario |
|---|---|---|
| Key wear/deformation | 42% | Long-term use and violent unlocking |
| Lock cylinder failure | 35% | Rust, foreign matter clogging |
| right or wrong key | 15% | Misuse of similar keys |
| Wrong direction | 8% | Not paying attention to the front and back of the key |
2. Ranking of high frequency solutions
According to statistics from platforms such as Douyin, Weibo, and Zhihu, the following methods have been mentioned the most:
| Ranking | method | Applicable scenarios | effectiveness |
|---|---|---|---|
| 1 | Graphite powder lubrication | Lock core is dry | ★★★★☆ |
| 2 | The key is inserted with slight shaking | slight misalignment | ★★★☆☆ |
| 3 | WD-40 rust remover | metal oxidation | ★★★★★ |
| 4 | key heating method | Lock cylinder freezes in winter | ★★★☆☆ |
3. Step-by-step emergency response guide
1.Inspection phase
• Make sure the key is fully inserted into the keyhole
• Observe the keyhole for obvious foreign matter
• Try other keys of the same type (note: non-violent testing)
2.basic processing
• Use a hair dryer to warm the lock cylinder (for low temperature freezing)
• Wait 3 minutes after spraying a small amount of lubricant
• Test the resistance by gently turning the key
3.Advanced operations
• Use pins to synchronize insertion with keys (skill required)
• Contact the property management company to obtain the spare lock cylinder code
• Take close-up photos of the keyhole and consult a locksmith
4. Effective folk remedies tested by netizens
| Source platform | method | Number of likes |
|---|---|---|
| little red book | Pencil lead powder lubrication method | 2.4w |
| Station B | Blowing through a straw to remove foreign matter | 1.7w |
| Douyin | Key dipped in cooking oil and inserted | 3.1w |
5. Professional locksmith advice
1.taboo behavior
• Never twist the key by force (the core is easy to break)
• Avoid using sticky lubricants (such as butter)
• Refuse to use non-professional lockpicking tools
2.Maintenance cycle
• Ordinary lock cylinder: lubrication and maintenance every six months
• Anti-theft lock cylinder: professional inspection every year
• Smart lock: maintain according to instructions
3.Change indicator
• The same key failed to open the door 3 times in a row
• There is obvious metal friction sound when the lock cylinder rotates
• Unknown rust or looseness
6. Extend hotspot association
Recent related hot search topics:
• #热播综合综合综合综合(Readed 120 million times on Weibo)
• #INTELLIGENT LOCK EMERGENCY MECHANICAL KEY FAILURE# (Douyin Challenge)
• #老LOCKCollectionHot# (Kuaishou popular tag)
Through the above structured data and solutions, when encountering a situation where the key cannot be inserted into the lock, it is recommended to try simple methods step by step. If the problem persists, you should contact a regular locksmith service agency in time to avoid greater losses due to improper operation.
check the details
check the details