Steel strand tensioning protection device
A protective device and steel strand technology, which is applied in the processing of building materials, construction, building construction, etc., can solve the problems of personal injury, jack device rebound, jack rotation and swing, etc.
Pending Publication Date: 2021-12-03
CHINA RAILWAY 16TH BUREAU GRP 5TH ENG
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the embodiments of the present invention is to provide a steel strand tensioning protection device, which aims to solve the problem that the existing device may easily cause the rotation and swing of the jack due to excessive torque during the stretching process of the jack, but the existing device cannot Dealing with this kind of change, which in turn causes the rebound of the jack device and the injury to personnel, lacks the problem of the corresponding stress buffer protection device
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
[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.
[0023] Such as figure 1 and 3 As shown, a steel strand tension protection device provided for an embodiment of the present invention includes a jack 13, and also includes:
[0024] Torque device 14, the torque device 14 includes a card device 141 installed on one side of the jack 13, the card device 141 is used to abut against the surface of the jack 13, and transmit the rotational torque generated when the jack 13 is stretched to the card device 141, one side...
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 is suitable for the field of buildings, and provides a steel strand tensioning protection device which comprises a jack and further comprises a torque device, wherein the torque device comprises a clamping piece device installed on one side of the jack, and the clamping piece device is used for abutting against the surface of the jack and transmitting a rotation torque generated when the jack is stretched to the clamping piece device; one side of the clamping piece device is connected with an elastic piece, and the clamping piece device outputs an elastic force into the elastic piece; and a buffering device which comprises a clamping piece installed on the surface of the jack, a plunger is installed in an outer cover in a sliding mode, a protection frame is installed on one side of the outer cover, the clamping piece is used for absorbing transverse impact, and buffering is achieved through movement of the plunger in the outer cover. According to the invention, when the jack rotates in the axial direction, torque is inevitably generated, the axial torque acts on the surface of a contact pad to form a transverse impact force, and due to the fact that the contact pad and the limiting piece are fixedly installed, the torque can be transmitted to the portion of the inserting block and eliminated through the elastic piece.
Description
technical field [0001] The invention belongs to the field of construction, and in particular relates to a tension protection device for steel strands. Background technique [0002] The jack is a kind of hydraulic control to realize the thrust of the device, and further realize the push of large items and large tension devices. Due to the particularity of the hydraulic device, it has a greater pulling effect. [0003] In the field of construction, the prestressed concrete device needs to prestress the steel bars inside the building, that is, the steel bars are sleeved inside the jack, and the steel bars are stretched with a practical hydraulic device. [0004] However, during the stretching process of the jack in the existing device, due to the excessive torque, it is easy to cause the rotation and swing of the jack, but the existing device cannot handle this change, which in turn causes the rebound of the jack device and the injury to personnel. stress buffer protection dev...
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 Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12
CPCE04G21/121
Inventor 张旭东李志强张黎吕志军张志永盛磊刘彬孙成龙
Owner CHINA RAILWAY 16TH BUREAU GRP 5TH ENG