CN104806162A - Inspection well crawling ladder - Google Patents
Inspection well crawling ladder Download PDFInfo
- Publication number
- CN104806162A CN104806162A CN201510081210.2A CN201510081210A CN104806162A CN 104806162 A CN104806162 A CN 104806162A CN 201510081210 A CN201510081210 A CN 201510081210A CN 104806162 A CN104806162 A CN 104806162A
- Authority
- CN
- China
- Prior art keywords
- foot
- foot rest
- cat ladder
- crawling ladder
- driven lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/081—Rungs or other treads comprising anti-slip features
Abstract
The invention discloses an inspection well crawling ladder. The inspection well crawling ladder comprises a crawling ladder main body made of round steel; the crawling ladder main body comprises a foot rest lever, two bended supporting feet, and two connecting rods; each bended supporting foot comprises a bended segment embedded into walls and an exposed straight segment; each straight segment is connected with one end of the foot rest lever via a corresponding connecting rod; the foot rest lever and a bended segment are arranged on the two sides of a corresponding straight segment respectively; a foot rest surface of the foot rest lever is a concave surface with inclination angles ranging from 3 to 5 DEG C from the middle part to the two end parts; the foot rest lever, the connecting rods, and the straight segments are all coated with skid-resistant layers made of corrosion-resistant plastic. Structure optimization is adopted, so that stability and gravity center balance can be maintained easily when the inspection well crawling ladder is used by servicemen, slipping is not easily caused, and powerful guarantee is provided for safe repair operation.
Description
Technical field
The present invention relates to communication engineering technical field, especially relate to inspection shaft cat ladder.
Background technology
In the last few years, with the raising that scientific and technological level is maked rapid progress, communication industry obtained swift and violent development, had occurred that a large amount of communication cables lays maintenance works thus.The communication cable in city is laid in the inspection shaft of underground in a large number, and maintenance of works personnel utilize the communication inspection shaft of ladder discrepancy underground.But, carry ladder to carry out maintenance activity and have its weakness not easily, so just have, fixed ladder stands is set on the sidewall of communication inspection shaft inside, but the foot-operated position in the cat ladder structure of prior art is linearity, easily to stop over when maintenance personal tramples shakiness, cause unnecessary somatic damage in landing well time serious, bring adverse influence to maintenance activity.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, technical problem to be solved is to provide a kind of inspection shaft cat ladder, by structure optimization, strengthens stability when maintenance personal tramples and keeps gravity balance, not easily there is skidding, for working service operation provides powerful guarantee.
The present invention makes above-mentioned technical problem be solved by the following technical programs.
Inspection shaft cat ladder, cat ladder body is formed by round steel, cat ladder body comprises foot-driven lever, two bent angle legs and two connecting rods, bent angle leg comprises the bent angle section imbedding body of wall and the flat segments exposed, flat segments is by the rod end of connecting rod connecting pin treadle, foot-driven lever and bent angle section split the both sides in flat segments, and the foot-operated face of foot-driven lever is be the indent profiles at three to five degree inclination angles to two ends by centre, foot-driven lever, connecting rod and flat segments is coated with corrosion resistance plastic non-skid layer.By foot-operated face being set to by centre be the indent profiles at three to five degree inclination angles to two ends, make to trample above time, not easily there is the phenomenon of slippage foot-driven lever in barycentre steadiness, improve safety when trampling and comfort level, alleviating the intense strain of maintenance personal, providing favourable conditions for steadily implementing maintenance activity smoothly.
As preferably, the medial surface of foot-driven lever is provided with grip part.
As preferably, connecting rod and flat segments perpendicular.
As preferably, bent angle section arranges screw thread.
Beneficial effect of the present invention:
1. optimize foot-operated face structure, improve the stationarity of center of gravity, eliminate the phenomenon of slippage foot-driven lever, for maintenance personal provides strong safety guarantee.
2. improve through exquisite structure, additionally do not increase on the basis of material cost, substantially increase security reliability, manufacture craft is simple, is applicable to batch production and uses.
3. foot-driven lever and bent angle section split the both sides in flat segments, make stress equalization, and barycentre steadiness is reliable, and resistance to permanent use is without the need to maintenance.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is side-looking structural representation of the present invention;
Fig. 3 is that the A of foot-driven lever in Fig. 1 is to structural representation.
In figure: 1-foot-driven lever, 2-bent angle leg, 3-connecting rod, 4-plastic non-skid layer, 5-grip part.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail.
Inspection shaft cat ladder of the present invention as shown in Figure 1 to Figure 3, forms cat ladder body by round steel, and cat ladder body comprises foot-driven lever 1, two bent angle legs 2 and two connecting rods 3.Bent angle leg 2 comprises the bent angle section imbedding body of wall and the flat segments exposed, and bent angle Duan Shangke arranges screw thread and is used for strengthening the adhesion imbedding body of wall, compressive resistance during enhancing cat ladder and anti-impact force.Flat segments is by the rod end of connecting rod 3 connecting pin treadle 1, and foot-driven lever 1 and bent angle section split the both sides in flat segments, and in order to keep stress equalization, resistance to permanent use, can select to be connected vertical to connecting rod 3 and flat segments.The foot-operated face of foot-driven lever 1 is be the indent profiles at three to five degree inclination angles to two ends by centre, and when so easy guarantee is trampled, barycentre steadiness does not occur slip phenomenon, improves security reliability.Foot-driven lever 1, connecting rod 3 and flat segments are coated with corrosion resistance plastic non-skid layer 4, frictional force and skidproof effect can be strengthened.Grip part 5 is set at the medial surface of foot-driven lever 1, is convenient to hand-held dynamics when strengthening climbing.
The present invention is not limited to above-described embodiment; other the embodiment that in the middle of the known technology that the connected mode of foot-driven lever, bent angle leg and connecting rod also can adopt those skilled in the art to obtain or prior art, equivalence is replaced; as long as belong to technical conceive of the present invention or spirit; by foot-operated face is set to the indent profile with special angle; keep barycentre steadiness during to realize trampling, the embodiment not easily for the purpose of slippage all drops in protection scope of the present invention.
Claims (4)
1. inspection shaft cat ladder, it is characterized in that: form cat ladder body by round steel, cat ladder body comprises foot-driven lever (1), two bent angle legs (2) and two connecting rods (3), bent angle leg (2) comprises the bent angle section imbedding body of wall and the flat segments exposed, flat segments is by the rod end of connecting rod (3) connecting pin treadle (1), foot-driven lever (1) and bent angle section split the both sides in flat segments, the foot-operated face of foot-driven lever (1) is be the indent profiles at three to five degree inclination angles to two ends by centre, foot-driven lever (1), connecting rod (3) and flat segments are coated with corrosion resistance plastic non-skid layer (4).
2. inspection shaft cat ladder according to claim 1, is characterized in that: the medial surface of foot-driven lever (1) is provided with grip part (5).
3. inspection shaft cat ladder according to claim 1, is characterized in that: connecting rod (3) is perpendicular with flat segments.
4. inspection shaft cat ladder according to claim 1, is characterized in that: bent angle section arranges screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081210.2A CN104806162A (en) | 2015-02-15 | 2015-02-15 | Inspection well crawling ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081210.2A CN104806162A (en) | 2015-02-15 | 2015-02-15 | Inspection well crawling ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806162A true CN104806162A (en) | 2015-07-29 |
Family
ID=53691316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510081210.2A Pending CN104806162A (en) | 2015-02-15 | 2015-02-15 | Inspection well crawling ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806162A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6607053B1 (en) * | 2000-09-26 | 2003-08-19 | William Paul Warren | Retractable safety cage |
| CN2876305Y (en) * | 2006-03-20 | 2007-03-07 | 钟信军 | Ladder for gully drain |
| CN101649720A (en) * | 2009-08-26 | 2010-02-17 | 天津市金锚集团有限责任公司 | Step pedal section bar and ladder |
| CN201850995U (en) * | 2010-11-18 | 2011-06-01 | 河南省电力公司南阳供电公司 | Portable rope ladder |
| CN202338191U (en) * | 2011-10-17 | 2012-07-18 | 中国石油天然气股份有限公司 | Oil well head operation ladder |
| CN203742426U (en) * | 2014-01-10 | 2014-07-30 | 瑞和安惠项目管理集团有限公司 | Inspection well ladder for municipal engineering construction |
-
2015
- 2015-02-15 CN CN201510081210.2A patent/CN104806162A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6607053B1 (en) * | 2000-09-26 | 2003-08-19 | William Paul Warren | Retractable safety cage |
| CN2876305Y (en) * | 2006-03-20 | 2007-03-07 | 钟信军 | Ladder for gully drain |
| CN101649720A (en) * | 2009-08-26 | 2010-02-17 | 天津市金锚集团有限责任公司 | Step pedal section bar and ladder |
| CN201850995U (en) * | 2010-11-18 | 2011-06-01 | 河南省电力公司南阳供电公司 | Portable rope ladder |
| CN202338191U (en) * | 2011-10-17 | 2012-07-18 | 中国石油天然气股份有限公司 | Oil well head operation ladder |
| CN203742426U (en) * | 2014-01-10 | 2014-07-30 | 瑞和安惠项目管理集团有限公司 | Inspection well ladder for municipal engineering construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |