CN202672749U - Prestress stretch-draw safety protection device connected through thread - Google Patents
Prestress stretch-draw safety protection device connected through thread Download PDFInfo
- Publication number
- CN202672749U CN202672749U CN 201220263831 CN201220263831U CN202672749U CN 202672749 U CN202672749 U CN 202672749U CN 201220263831 CN201220263831 CN 201220263831 CN 201220263831 U CN201220263831 U CN 201220263831U CN 202672749 U CN202672749 U CN 202672749U
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- China
- Prior art keywords
- protective cover
- draw
- prestressed stretch
- stretch
- main body
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- Expired - Lifetime
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Abstract
Provided is a prestress stretch-draw protection device connected through thread. The prestress stretch-draw protection device connected through the thread comprises a prestress stretch-draw protective cover device in a shape of a metal cylinder with one opening end and one closing end. The prestress stretch-draw protective cover device is composed of a connecting device, a protective cover body and a damping device. One end of the connecting device can be screwed on a work anchor through the thread and the other end of the connecting device is provided with a circle of a closing mouth which extends inwards. An opening end of the protective cover body is provided with the circle of an outward convex mouth with a diameter slightly longer than that of the protective cover body. The outward convex mouth of the protective cover body is sleeved inside the closing mouth of the connecting device. A small steel block is arranged outside the protective cover body so as to prevent the connecting device form sliding out. The tail end of the prestress stretch-draw protective cover device is provided with the damping device which is provided with a damping spring in the middle. The prestress stretch-draw protection device connected through the thread is easy to install, convenient to use and can effectively protect field workers during the process of stretching and drawing prestress.
Description
Technical field
The utility model relates to the prestressed stretch-draw safety device that a kind of usefulness is threaded, and belongs to prestressed stretch-draw safeguard protection field.
Background technology
Present stage, the prestressed stretch-draw safety precautions had warning devices such as placing warning sign in the prestressed member end; but this can only play warning function; can't really play the safeguard protection effect; also have at component ends masonry protection wall or pile up sandbag and gripper shoe; not only have high input, and protection effect is not obvious.Existing stretch-draw protective device license publicity CN 2020816610U; the component ends of prestressed reinforcement being installed in protective cover by bolt in, it is housed; Crashworthy plate and vibration damper plate are set in the protective cover; protective cover is several fonts; mainly born the effect of security protection by protected apron; but this protector will take the prestressed stretch-draw working space; prestressed stretch-draw work can't be carried out; and this protector will be buried the reinforcing bar of connecting bolt in advance underground at component ends; greatly increased engineering cost; therefore this prestressed stretch-draw protector is difficult to really be applied among the actual prestressed stretch-draw security protection.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists; and the prestressed stretch-draw safety device that provides a kind of usefulness to be threaded; this device is installed simple, easy to use, and the safety of staff in the stretch-draw prestressing force process that can effectively keep the scene intact.
The purpose of this utility model is finished by following technical solution, it comprises that one is the prestressed stretch-draw safety shield device that an end seals the round metal tubular of an end opening, this prestressed stretch-draw safety shield device is made of linkage, protective cover main body and damping device, one end of described linkage can change on the work ground tackle closing in that the other end has a circle to extend internally over to by screw thread; Described protective cover body openings end is provided with a circle outer tang slightly larger than main diameter, and the evagination muzzle of protective cover main body is in the inside that linkage closes up and holds, and the protective cover main body outside is provided with the little iron block that prevents that linkage from skidding off; The end of this prestressed stretch-draw safety shield device is the damping device that a centre is furnished with damping spring.
As preferably, described damping device is made of vibration damper plate, damping spring, and this damping spring is between vibration damper plate and the sealing of protective cover main body.
As preferably, described steel strand are interspersed on member, end anchorage, jack, work ground tackle and the prestressed stretch-draw safety shield device successively, are provided with intermediate plate between these steel strand and ground tackle.
The beneficial effects of the utility model are: the prestressed stretch-draw safety device that this usefulness is threaded can be installed on the work ground tackle, can realize having operability under the present stage condition, and uses and be threaded simple and conveniently, and bonding strength is high; This device can be wrapped in intermediate plate protector inside, intermediate plate and staff are kept apart, when if generation fracture of wire or intermediate plate inefficacy etc. are unexpected, protector will absorb the unexpected energy that discharges, the intermediate plate or the steel strand that accident are collapsed are controlled at protector inside, the staff's that keeps the scene intact safety; This device will be reformed prestressed stretch-draw protection field, and the staff's that keeps the scene intact that can be practical safety has broad application prospects.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that prestressed stretch-draw safety device of the present utility model uses flow chart.
Label in the accompanying drawing is respectively: 1, work ground tackle, 2, linkage, 3, the protective cover main body, 4, damping device, 5, member, 6, jack, 7, intermediate plate, 8, steel strand, 9, end anchorage, 21, close up, 22, screw thread, 31, outer tang, 32, little iron block, 41, vibration damper plate, 42, damping spring.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed introduction: as shown in Figure 1, the utility model comprises that one is the prestressed stretch-draw safety shield device that an end seals the round metal tubular of an end opening, this prestressed stretch-draw safety shield device is made of linkage 2, protective cover main body 3 and damping device 4, one end of described linkage 2 can change on work ground tackle 1 closing in 21 that the other end has a circle to extend internally over to by screw thread 22; Described protective cover main body 3 openends are provided with a circle outer tang 31 slightly larger than main diameter, the outer tang 31 of protective cover main body 3 is enclosed within the inside of linkage 2 closing ins 21 ends, both can freely rotate, but both can not separate, by this structure, prestressed stretch-draw is installed protective cover and just can be able to be installed on the ground tackle.Protective cover main body 3 outsides are provided with the little iron block 32 that prevents that linkage 2 from skidding off; The end of this prestressed stretch-draw safety shield device is the damping device 4 that a centre is furnished with damping spring 42.
Described damping device 4 is made of vibration damper plate 41, damping spring 42, and this damping spring 42 is between vibration damper plate 41 and 3 sealings of protective cover main body; Can impact-absorbing power by damping device 4, reduce unexpected destruction of causing, the staff's that keeps the scene intact safety.
It is inner that described steel strand 8 are interspersed in member 5, end anchorage 9, jack 6, work ground tackle 1 and prestressed stretch-draw safety shield device successively, will have the steel strand 8 of potential safety hazard and intermediate plate 7 to be rolled into enclosed environment, guaranteed site operation personnel's safety; Because the prestressed stretch-draw safety shield device is installed in the end of work ground tackle 1, and is easy to operate in the prestressed stretch-draw operating process, use simple.Behind the prestressed stretch-draw end-of-job, only the prestressed stretch-draw safety shield device need to be unloaded from work ground tackle 1, namely finish a prestressed stretch-draw protection, this device can recycle, and utilization rate is high.
The use flow process of this prestressed stretch-draw safety shield device is: (as shown in Figure 2)
1, according to the concrete condition of prestressed stretch-draw, steel strand 8, ground tackle 9 and intermediate plate 7 are installed, are selected suitable jack 6, jack 6 by Chain block, is winched to the prestressed stretch-draw position, steel strand 8 are passed jack 6.
2, the ground tackle 1 of will working is installed into jack 6 ends, should note the direction of work ground tackle 1 during installation, and threaded end is contained in the outside, and work ground tackle 1 installs, and intermediate plate 7 is installed.
3, after intermediate plate 7 installations, just protective cover can be installed on the work ground tackle 1, again the protective cover screw thread be aimed at the ground tackle screw thread, by linkage 2 protective cover be screwed in work ground tackle 1, protective cover is fixing with work ground tackle 1.
4, install after the protective cover, just can begin prestressed stretch-draw work, program is finished prestressed stretch-draw work according to the rules.
5, after prestressed stretch-draw is finished, because work ground tackle 1 can inwardly not bounce back, so should first protective cover be screwed out work ground tackle 1, unload after the low protection cover, with jack 6 retractions, unload work ground tackle 1 again.
The utility model is not limited to above-mentioned embodiment; no matter do any variation in its shape or material formation; every employing structure design provided by the utility model all is a kind of distortion of the present utility model, all should think within the utility model protection domain.
Claims (3)
1. one kind with the prestressed stretch-draw safety device that is threaded, comprise that one is the prestressed stretch-draw safety shield device that an end seals the round metal tubular of an end opening, it is characterized in that: this prestressed stretch-draw safety shield device is made of linkage (2), protective cover main body (3) and damping device (4), one end of described linkage (2) can change on work ground tackle (1) closing in (21) that the other end has a circle to extend internally over to by screw thread (22); Described protective cover main body (3) openend is provided with a circle outer tang (31) slightly larger than main diameter, the outer tang (31) of protective cover main body (3) is enclosed within the inside that linkage (2) closes up and holds, and protective cover main body (3) outside is provided with the little iron block (32) that prevents that linkage (2) from skidding off; The end of this prestressed stretch-draw safety shield device is the damping device (4) that a centre is furnished with damping spring (42).
2. the prestressed stretch-draw safety device that is threaded of usefulness according to claim 1, it is characterized in that: described damping device (4) is made of vibration damper plate (41), damping spring (42), and this damping spring (42) is positioned between vibration damper plate (41) and protective cover main body (3) sealing.
3. the prestressed stretch-draw safety device that is threaded of usefulness according to claim 1 and 2, it is characterized in that: described steel strand (8) are interspersed on member (5), end anchorage (9), jack (6), work ground tackle (1) and the prestressed stretch-draw safety shield device successively, these steel strand (8) with end anchorage (9), working accompanies intermediate plate (7) between ground tackle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263831 CN202672749U (en) | 2012-06-06 | 2012-06-06 | Prestress stretch-draw safety protection device connected through thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263831 CN202672749U (en) | 2012-06-06 | 2012-06-06 | Prestress stretch-draw safety protection device connected through thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202672749U true CN202672749U (en) | 2013-01-16 |
Family
ID=47493659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263831 Expired - Lifetime CN202672749U (en) | 2012-06-06 | 2012-06-06 | Prestress stretch-draw safety protection device connected through thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202672749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119566A (en) * | 2017-03-23 | 2017-09-01 | 中铁七局集团西安铁路工程有限公司 | A kind of guy protector |
| CN107489104A (en) * | 2017-08-31 | 2017-12-19 | 浙江工业大学 | A kind of girder pre-stressed steel Shu Zhangla protectors of T |
| CN109211667A (en) * | 2018-09-13 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of safety protection jacket of the steel strand relaxation test machine |
-
2012
- 2012-06-06 CN CN 201220263831 patent/CN202672749U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119566A (en) * | 2017-03-23 | 2017-09-01 | 中铁七局集团西安铁路工程有限公司 | A kind of guy protector |
| CN107119566B (en) * | 2017-03-23 | 2020-06-16 | 中铁七局集团西安铁路工程有限公司 | Inhaul cable protection device |
| CN107489104A (en) * | 2017-08-31 | 2017-12-19 | 浙江工业大学 | A kind of girder pre-stressed steel Shu Zhangla protectors of T |
| CN109211667A (en) * | 2018-09-13 | 2019-01-15 | 上海华龙测试仪器有限公司 | A kind of safety protection jacket of the steel strand relaxation test machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |