Title:
IMPACT-PROTECTION AND DAMAGE-REDUCTION STRUCTURE WITH TIRE PRESSURE GAUGE FOR AIR VALVE
Document Type and Number:
WIPO Patent Application WO/2011/160315
Kind Code:
A1
Abstract:
An impact-protection and damage-reduction structure with a tire pressure gauge for an air valve is disclosed. The tire pressure gauge (1) includes a shell (11) and a hollow pipe body (4) of the air valve. An inward concave spherical surface (74) is formed on the shell (11). An air inlet (41) and an air outlet (40) which penetrates through the side are formed on the pipe body (4). A universal head (3) is provided on the outside of the air outlet (40) along the axial direction of the air valve (2), and a universal connection is realized between the universal head (3) and the inner concave spherical surface (74). A weak link (43), the thickness of which is smaller than that of other pipe body parts, is provided on the air inlet tail end of the air valve pipe body (4) and passes through the air outlet (40). Since the mechanical strength of the weak link (43) is weakened relative to other parts of the air valve, the unique weakness lies in the weak link (43) when the tire pressure gauge installed on a hub is impacted by an external force. The weak link is easier to break under the impact of the external force. Accordingly, although the tire pressure gauge can be separated from the air valve (2), a broken structure is the pipe body of the air valve (2) instead of the tire pressure gauge, thus just replacing the air valve and retaining the tire pressure gauge. Since the cost of the air valve is far lower than that of the tire pressure gauge, the impact-protection and damage-reduction structure can save high maintenance cost for users.
Inventors:
LI ZHITAO (CN)
Application Number:
PCT/CN2010/075168
Publication Date:
December 29, 2011
Filing Date:
July 15, 2010
Export Citation:
Assignee:
LI ZHITAO (CN)
STEELMATE CO LTD (CN)
STEELMATE CO LTD (CN)
International Classes:
B60C23/04; B60C29/06; G01L17/00
Foreign References:
| CN101863202A | 2010-10-20 | |||
| CN101863201A | 2010-10-20 | |||
| CN201751217U | 2011-02-23 | |||
| CN201376472Y | 2010-01-06 | |||
| JP2004299535A | 2004-10-28 | |||
| CN2272503Y | 1998-01-14 | |||
| DE19610376A1 | 1997-09-18 | |||
| CN2835361Y | 2006-11-08 | |||
| CN200910260535A | 2009-12-10 | |||
| CN201376472Y | 2010-01-06 |
Other References:
See also references of EP 2586632A4
Attorney, Agent or Firm:
LIFANG & PARTNERS (CN)
北京市立方律师事务所 (CN)
北京市立方律师事务所 (CN)
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Claims: