CN203434261U - Fall protection device of lifting rod - Google Patents
Fall protection device of lifting rod Download PDFInfo
- Publication number
- CN203434261U CN203434261U CN201320403945.9U CN201320403945U CN203434261U CN 203434261 U CN203434261 U CN 203434261U CN 201320403945 U CN201320403945 U CN 201320403945U CN 203434261 U CN203434261 U CN 203434261U
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- CN
- China
- Prior art keywords
- spring
- rod
- elevating lever
- axis pin
- proof device
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- Expired - Lifetime
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Abstract
Disclosed is a fall protection device of a lifting rod. The fall protection device is installed between any two adjacent rod bodies of the lifting rod, which move relatively. The fall protection device comprises a spring supporting base with an inner cavity, which is installed on the relatively moving rod bodies, and a spring pin roll which can slide inside the inner cavity of the spring supporting base, wherein the spring pin roll is installed inside the spring supporting base in a pressed mode through a steel wire rope of a synchronous lifting steel wire rope system, a compression spring which is used for connecting the spring pin roll and a spring supporting base blank cap is arranged between the spring pin roll and the spring supporting base blank cap, and a reserved hole which can accommodate the outer end of the ejected spring pin roll is formed in a relatively static rod body. The device has the advantages that the theory is simple, the structure is compact, the required installation space is small, the reliability is high, and particularly after the device is assembled, the device is completely sealed in the lifting rod, so that the lifting rod is safe to use.
Description
Technical field
The utility model belongs to communication equipment technical field, relates to a kind of elevating lever falling proof device.
Background technology
Existing communication antenna hoisting gear (elevating lever), due to history, inner space and the factors such as load impact strength of falling, does not all install falling proof device.Communication antenna lowering or hoisting gear, as the delivery vehicle of sky line load, raises communicator or is reduced to assigned work height.In this process, communication antenna lowering or hoisting gear Promotion From Within steel wire rope ruptures suddenly, and its top antenna load movement of falling object under Action of Gravity Field, falls earthward fast, and gently antenna and relevant device are smashed; Heavy personnel casualty accidents occurs.There is potential safety hazard in original communication antenna lowering or hoisting gear, to communication property and construction and attendant's life formation great threat.Therefore, communication is the basic demand of security protection with antenna hoisting gear research and development and enforcement falling proof device, is can not be uncared-for.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, use safety, elevating lever falling proof device that reliability is high.
For reaching goal of the invention the technical solution adopted in the utility model, be:
Elevating lever falling proof device, its be installed on elevating lever relative motion any two joint the adjacent body of rod between, it is characterized in that: comprise the spring fastening with inner chamber being arranged on the relative motion body of rod, the axis pin of the spring that can slide in the inner chamber of spring fastening, described axis pin of the spring is fitted in spring fastening by the steel wire rope of synchronization lifting steel rope system, between described axis pin of the spring and spring fastening stifle, is provided with the Compress Spring connecting; The relatively static body of rod is provided with the reserving hole of the axis pin of the spring outer end that can hold ejection.
Further, described spring fastening is arranged on the bottom of the relative motion body of rod.
Further, on described spring fastening and spring fastening stifle, being fixed with axis pin of the spring can be along the axis pin of the spring guide rod sliding.
Further, described spring fastening is fixed on the relative motion body of rod by housing screw.
Further, the gap between the adjacent two pole bodies of described elevating lever is all not more than 20mm.
For effectively preventing that overload or any other unexpected factor from causing the fracture of steel wire rope to cause body of rod falling accident, between the adjacent body of rod of any two joint of relative motion, all assemble elevating lever falling proof device, elevating lever falling proof device is assemblied in every joint relative motion body of rod bottom, during normal operation, be subject to outside and tighten the compression of steel wire rope, with steel wire rope associated movement, once steel wire rope fracture, the axis pin of the spring of the elevating lever falling proof device being compressed at ordinary times ejects immediately under Compress Spring triggers, penetrate in the reserving hole with this relative static body of rod in fracture steel wire rope place, pin the body of rod that just starts tenesmus, make it to stop, play fall arrest effect.
The course of work of the present utility model is as follows: when communication antenna elevating lever normal operation (rise, decline or be still in arbitrary particular job height), the steel wire rope compacting that axis pin of the spring is tauted, Compress Spring is in pressured state, axis pin of the spring keeps dynamic equilibrium under the acting in conjunction of steel wire rope and Compress Spring, transfixion.Whole falling proof device and steel wire rope together rise, decline and keep static; When steel wire rope ruptures suddenly, steel wire rope disappears to the pressure of axis pin of the spring, the balance sysmte that steel wire rope, axis pin of the spring and Compress Spring form is broken, under the thrust of axis pin of the spring Compress Spring, eject immediately, penetrate in the reserving hole of the relatively static body of rod, make the relative motion body of rod that just starts tenesmus at once stop tenesmus motion, by locked.The axis pin of the spring of going out inserts after relatively static body of rod reserving hole, and the relatively static body of rod, the relative motion body of rod can not produce relative motion together with being locked in elevating lever falling proof device, play the effect that prevents that the body of rod from falling suddenly.
The beneficial effects of the utility model: principle is simple, compact conformation, require installing space little, and reliability is high, particularly, after assembling completes, in completely airtight elevating lever, elevating lever are used safer.
Accompanying drawing explanation
Fig. 1 is installation sketch of the present utility model.
Fig. 2 is that the utility model is along A-A in Fig. 1 to cutaway view.
Fig. 3 is fundamental diagram of the present utility model.
Fig. 4 is that the utility model is along B-B in Fig. 3 to cutaway view.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described, but the utility model is not confined to these embodiments.One skilled in the art would recognize that the utility model contained all alternatives, improvement project and the equivalents that within the scope of claims, may comprise.
With reference to Fig. 1-4, elevating lever falling proof device, its be installed on elevating lever relative motion any two joint the adjacent body of rod between, comprise the spring fastening 6 with inner chamber being arranged on the relative motion body of rod 7, the axis pin of the spring 5 that can slide in the inner chamber of spring fastening 6, described axis pin of the spring 5 is fitted in spring fastening 6 by the steel wire rope 9 of synchronization lifting steel rope system, is provided with the Compress Spring 2 connecting between described axis pin of the spring 5 and spring fastening stifle 3; The relatively static body of rod 8 is provided with the reserving hole 10 of axis pin of the spring 5 outer ends that can hold ejection.
Described spring fastening 6 is arranged on the bottom of the relative motion body of rod 7.
On described spring fastening 6 and spring fastening stifle 3, being fixed with axis pin of the spring 5 can be along the axis pin of the spring guide rod 4 sliding.
Described spring fastening 6 is fixed on the relative motion body of rod by housing screw 1.
Gap between the adjacent two pole bodies of described elevating lever is all not more than 20mm.
For effectively preventing that overload or any other unexpected factor from causing the fracture of steel wire rope to cause body of rod falling accident, between the adjacent body of rod of any two joint of relative motion, all assemble elevating lever falling proof device, elevating lever falling proof device is assemblied in every joint relative motion body of rod bottom, during normal operation, be subject to outside and tighten the compression of steel wire rope 9, with steel wire rope 9 associated movements, once steel wire rope 9 fractures, the axis pin of the spring 5 of the elevating lever falling proof device being compressed at ordinary times ejects immediately under Compress Spring 2 triggers, penetrate in the reserving hole 10 with this fracture steel wire rope 9 relative static bodies of rod 8 in place, pin the body of rod that just starts tenesmus, make it to stop, play fall arrest effect.
The course of work of falling proof device is as follows: when communication antenna elevating lever normal operation (rise, decline or be still in arbitrary particular job height), steel wire rope 9 compactings that axis pin of the spring 5 is tauted, Compress Spring 2 is in pressured state, axis pin of the spring 5 keeps dynamic equilibrium, transfixion under the acting in conjunction of steel wire rope 9 and Compress Spring 2.Whole falling proof device and steel wire rope 9 together rise, decline and keep static; When steel wire rope 9 ruptures suddenly, the pressure of 9 pairs of axis pin of the spring 5 of steel wire rope disappears, the balance sysmte that steel wire rope 9, axis pin of the spring 5 and Compress Spring 2 form is broken, axis pin of the spring 5 ejects immediately under the thrust of Compress Spring 2, penetrate in the reserving hole 10 of the relatively static body of rod 8, make the relative motion body of rod 7 that just starts tenesmus at once stop tenesmus motion, by locked.The axis pin of the spring 5 of going out inserts after the relatively static body of rod 8 reserving holes 10, and the relatively static body of rod 8, the relative motion body of rod 7 can not produce relative motion together with being locked in elevating lever falling proof device, play the effect that prevents that the body of rod from falling suddenly.
Claims (5)
1. elevating lever falling proof device, its be installed on elevating lever relative motion any two joint the adjacent body of rod between, it is characterized in that: comprise the spring fastening with inner chamber being arranged on the relative motion body of rod, the axis pin of the spring that can slide in the inner chamber of spring fastening, described axis pin of the spring is fitted in spring fastening by the steel wire rope of synchronization lifting steel rope system, between described axis pin of the spring and spring fastening stifle, is provided with the Compress Spring connecting; The relatively static body of rod is provided with the reserving hole of the axis pin of the spring outer end that can hold ejection.
2. elevating lever falling proof device according to claim 1, is characterized in that: described spring fastening is arranged on the bottom of the relative motion body of rod.
3. elevating lever falling proof device according to claim 1 and 2, is characterized in that: on described spring fastening and spring fastening stifle, being fixed with axis pin of the spring can be along the axis pin of the spring guide rod sliding.
4. elevating lever falling proof device according to claim 3, is characterized in that: described spring fastening is fixed on the relative motion body of rod by housing screw.
5. elevating lever falling proof device according to claim 4, is characterized in that: the gap between the adjacent two pole bodies of described elevating lever is all not more than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403945.9U CN203434261U (en) | 2013-07-08 | 2013-07-08 | Fall protection device of lifting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403945.9U CN203434261U (en) | 2013-07-08 | 2013-07-08 | Fall protection device of lifting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434261U true CN203434261U (en) | 2014-02-12 |
Family
ID=50063282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320403945.9U Expired - Lifetime CN203434261U (en) | 2013-07-08 | 2013-07-08 | Fall protection device of lifting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390788A (en) * | 2013-07-08 | 2013-11-13 | 电联工程技术股份有限公司 | Fall protection device of lifting rod |
-
2013
- 2013-07-08 CN CN201320403945.9U patent/CN203434261U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390788A (en) * | 2013-07-08 | 2013-11-13 | 电联工程技术股份有限公司 | Fall protection device of lifting rod |
| CN103390788B (en) * | 2013-07-08 | 2016-06-29 | 电联工程技术股份有限公司 | Elevating lever falling proof device |
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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: 20140212 |