Clip type anti-stealing manhole cover
A technology of manhole cover and manhole cover, which is applied in water conservancy projects, artificial islands, underwater structures, etc., achieves the effects of simple structure, few parts and low manufacturing cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0012] As shown in Figures 1 and 2, the clip-type anti-theft inspection well cover includes the well cover (1), the claw shaft (2), the pin (3) and the cover seat (4), the outer ring of the well cover (1) and the inner ring of the cover seat (4) They are all round, and the bottom of the well cover (1) is provided with reinforcing ribs, and the surface of the cover has a number of non-slip bumps and process holes for assembly and disassembly. Each edge has a hole with internal thread, and the claw shaft (2) is housed in the hole, and there is also a through hole on the left and right at the inner side of the central axis of the cover seat (4) corresponding to the hole position of the well cover (1). The hole is not threaded and the lower face of the hole is an inverted conical face.
[0013] The claw shaft (2) is a cylindrical hollow shaft with a thread on the upper end of the outer diameter and a claw with an equal opening slot at the lower end. The claw is elastic, and the nu...
Embodiment 2
[0016] See Fig. 3, embodiment 2 is to slightly modify the structure of the stepped inner hole of the claw shaft (2) and the outer diameter of the pin (3), process the matching internal and external threads, and change the threaded hole at the center of the top end of the pin (3) into In the concave triangular curve groove, use a special tool to rotate the pin (3) downward, and the conical cylindrical surface at the end of the pin will push against the inner arc surface of the claw shaft (2) to expand it outward, and the pin will be locked after expansion. Claw claw surface is firmly stuck on the inverted conical end face place of cover seat (4), because the claw inner arc surface is blocked, the claw can not bounce back by itself, plays the role of anti-theft dismantling.
[0017] All the other steps are the same as in Example 1.
[0018] This card-type anti-theft manhole cover has a simple structure, few parts, and low manufacturing cost. Especially, the interlocking of the m...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com