Fusible locking device
A locking device and fusing technology, applied in construction, bridge construction, bridges, etc., can solve the problems of large bridge repair works and high cost of replacing locking devices, and achieve the effect of saving repair and maintenance costs, reducing construction costs, and improving control effects.
Active Publication Date: 2012-08-29
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, after the earthquake, all brand-new magneto-rheological locking devices must be replaced in order to make the bridge continue to be used. There are disadvantages such as a large amount of bridge repair work after the earthquake and high cost of replacing the locking devices.
Method used
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0016] refer to figure 1 , The fusible locking device of the present invention includes a locking device 10 whose end is hinged to the main beam support body. The locking device 10 is the same as the existing locking device, and a viscous locking force is generated by a piston head moving in the liquid. refer to figure 1 and Figure 5 , it also includes a sleeve 20, a pull rod 30 and a fuse ring 40, the sleeve 20 is connected in series with the cylinder of the locking device 10, one end of the pull rod 30 is hinged to the main beam, and the other end is rigidly connected to the sleeve 20 through the fuse ring 40.
[0017] The fuse ring 40 has a precise fusing force. Before the fusing force is less than the designed one, the locking device 10 is equivalent to a common locking device—a locking device with a speed switch, and the locking speed can usuall...
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The invention discloses a fusible locking device, which can be conveniently and quickly repaired after earthquake and can greatly save repair and maintenance costs. The fusible locking device comprises a locking device (10) of which one end is hinged with a main beam supporting body, and also comprises a sleeve (20), a pull rod (30) and a fusing ring (40), wherein the sleeve (20) is connected in series with a cylinder body of the locking device (10); and one end of the pull rod (30) is hinged with a main beam, while the other end is rigidly connected with the sleeve (20) through the fusing ring (40). The fusible locking device has the advantages that the device can be well used with a viscous damper, separately controls brake load and earthquake load to realize good control effect on the two working conditions, and greatly reduces the manufacturing cost of a control system; and the fusing ring can effectively avoid the damage of the locking device, can be conveniently and quickly repaired after the earthquake, and can greatly save the repair and maintenance costs.
Description
technical field [0001] The present invention relates to bridges, and more particularly to a fusible locking device that facilitates rapid repair after an earthquake. Background technique [0002] The locking device is a restraining displacement device similar to a speed switch, which is activated when the bridge moves to a certain speed, and locks the relative displacement between the two placement points. It works like a seat belt on a car. Bounded by a set locking speed, it has no effect during slow motion, allowing the bridge to deform freely under temperature and normal live loads. It will play the role of locking motion in rapid motion. This device though cannot dissipate energy. However, it can effectively reduce, transfer and limit the movement and collision between the various parts of the bridge caused by the braking force and other loads. In the existing locking device, a viscous locking force is generated by a piston head moving in the liquid, and the control ...
Claims
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IPC IPC(8): E01D19/00E04B1/98
Inventor 陈克坚曾永平陈思孝戴胜勇陈永祈袁明陈天地许烈生
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD