Fixing device with locking frame and heating strip
A technology of fixing device and locking frame, applied in the directions of roads, tracks, buildings, etc., can solve the problems of heating device failure, complex process structure, structural defects, etc., and achieve the effect of light weight, low weight, simple and reasonable structure
Active Publication Date: 2013-05-01
中铁电化(西安)通号设备有限公司
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The assembly of the elastic fixing card of the outer locking frame of the traditional fixed turnout is to completely fasten the heating strip with complex machined parts or structural parts with unreasonable materials. Rapid changes in temperature and alternating heavy dynamic loads will cause cracks or even breaks in the weak parts of the structure, directly causing the failure of the heating device or even more serious consequences
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] Such as Figure 1 to Figure 4 As shown, the upper and lower fixing clips of the present invention are provided with front and rear locking pieces for clamping and fastening the locking frame. The smaller elastic leaf spring material makes it form a spring chamber. At the same time, the design takes into account that the internal stress release at each bending point during the processing has a reasonable arc transition, which is conducive to improving the structural strength and enhancing the clamping tightness. Solid force, easy to adjust and install; making it more suitable for on-site locking frame heating strip fixing.
[0023] In order to prevent the occurrence of misalignment or deviation during the clamping process of the upper and lower clips, a positioning groove is provided on the locking plate to fix its directional movement, which ensures that the clips only move elastically in the vertical direction; at the same time, the clamping force is more reliable. Th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a fixing device with a locking frame and a heating strip. The device comprises an upper fixing clip and a lower fixing clip which are matched with the locking frame in shape, are elastic, and together wrap the locking frame respectively from top and bottom, the heating strip abutted to the locking frame is fixedly arranged at the inner side of the lower fixing clip, the two fixing clips are buckled, the buckled parts are provided with locking pieces, each locking piece consists of a convex middle part, corresponding two ends positioned in the length direction of the middle part, and two straight ends integrated with the middle part, the middle parts are provided with positioning grooves along the length directions, the front locking piece and the back locking piece are arranged back to back in a paired mode, and the upward and downward movement of the upper fixing clip and the lower fixing clip is limited elastically by a transitional slope of the convex middle parts. According to the fixing device disclosed by the invention, the paired elastic locking pieces and the buckled upper fixing clip and lower fixing clip are matched, so that the weight of the device is greatly reduced, clamping force is increased, and a severe test on a structure and material thereof caused by alternating heavy dynamic load and temperature upheaval is buffered.
Description
technical field [0001] The invention relates to a structural component of a fixed locking frame heating strip for railways. Background technique [0002] The external locking device is an important safety link in the railway switch conversion equipment. It is composed of a locking rod, a locking frame, a locking iron, a locking hook and a point rail connecting iron, etc., and is used to reliably maintain the state of the turnout. [0003] Turnout snow melting technology aims to prevent the switch rails from being frozen by ice and snow, and usually adopts the method of installing heating strips or heating plates under the outer locking device to achieve the purpose of timely snow melting. [0004] The assembly of the elastic fixing card of the outer locking frame of the traditional fixed turnout is to completely fasten the heating strip with complex machined parts or structural parts with unreasonable materials. Dramatic temperature changes and heavy alternating and dynamic...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): E01B7/24
Inventor 张健
Owner 中铁电化(西安)通号设备有限公司