CN105545202B - A kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering - Google Patents
A kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering Download PDFInfo
- Publication number
- CN105545202B CN105545202B CN201510919308.0A CN201510919308A CN105545202B CN 105545202 B CN105545202 B CN 105545202B CN 201510919308 A CN201510919308 A CN 201510919308A CN 105545202 B CN105545202 B CN 105545202B
- Authority
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- China
- Prior art keywords
- connector
- steel
- pedal
- prefabricated steel
- prefabricated
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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
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
-
- 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
- E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
-
- 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
-
- 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
- E06C7/082—Connections between rungs or treads and longitudinal members
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
This application discloses a kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering, cat ladder includes the first prefabricated steel, the second prefabricated steel, the first connector, the second connector and pedal, wherein, the first prefabricated steel, the second prefabricated steel are embedded into wall in parallel to each other；One end of first connector is separately fixed in the first prefabricated steel and the second prefabricated steel, and the first connector is exposed to outside wall；The other end of first connector opens up the opening of breach upwards, and one end of pedal is overlapped in the breach, and the first connector is extended vertically through with vertical second connector that wall be arranged in parallel with pedal and is connected, and pedal can be flipped up around the second connector.The application structure design is simple, practical, it is easy to accomplish.First connector is connected with pedal by the second connector latch, convenient dismounting, convenient maintenance.
Description
Technical field
The application is related to field of engineering technology, the manufacture method of the detachable U-shaped cat ladder of particularly a kind of hydraulic engineering.
Background technology
At present, hydraulic engineering is located at by-place, especially pumping plant mostly, and the design of discharge bay cat ladder uses screw-thread steel always
Component is directly embedded in armored concrete in advance.Outer due to being chronically exposed to, cat ladder is easy to get rusty, and the cat ladder after getting rusty is difficult
Repair, also result in discharge bay exterior wall and have rusty stains very unsightly；In addition, the illegal of unrelated person also often occurs for fixed ladder stands
Using or children play and cause contingency.
Existing City Pumping Station is built in river course scenic belt mostly, appearance requirement will arrange in pairs or groups with landscape, originally pumping plant discharge bay
Cat ladder design has been not suitable with city landscape design requirement, and the cat ladder of the application design is using detachable stainless steel assembling fittings
Into, it is both attractive in appearance, and non-corrosive, and it is easy to maintenance.
The content of the invention
The application technical problem to be solved is to be directed to above-mentioned the deficiencies in the prior art, and offer one kind is simple in construction, set
Meter rationally, conveniently overhauls, is difficult the manufacture method of the detachable U-shaped cat ladder of the hydraulic engineering got rusty.
In order to solve the above technical problems, the technical scheme that the application is used is：
A kind of detachable U-shaped cat ladder of hydraulic engineering, including the first prefabricated steel, the second prefabricated steel, the first connector, the
Two connectors and pedal, wherein, the first prefabricated steel, the second prefabricated steel are embedded into wall in parallel to each other；First connection
One end of part is separately fixed in the first prefabricated steel and the second prefabricated steel, and the first connector is exposed to outside wall；First connects
The other end of fitting opens up the opening of breach upwards, and one end of pedal is overlapped in the breach, the first connector and pedal by with
The second connector that wall be arranged in parallel extends vertically through connection, and pedal can be flipped up around the second connector.
Herein described pedal is the U-shape structure that stainless steel square steel pipe is made.
Herein described pedal is that square steel tube bending is formed.
Herein described first connector is channel-section steel.
The application is used after said structure, is had the following technical effect that：
The application structure design is simple, practical, it is easy to accomplish.First connector is connected with pedal by the second connector latch
Connect, convenient dismounting, convenient maintenance.
The first stud connector design enables pedal to be flipped up around the second connector into upward breach is opened up in the application,
In the case of, overturn upwards in pedal or whole cat ladder, space can be saved.
The first connector is fixed in the first and second prefabricated steel in the application, and pedal is connected with the first connector,
Avoid directly contacting for pedal and wall, it is to avoid existing cat ladder causes the problem of wall comes off.
The invention also discloses a kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering, its feature includes following technique
And step：
1) interception stainless steel channel-section steel is the first connector, channel-section steel thickness 3-5mm, groove depth, groove width 30-40mm, length 40-
50mm, the hole of fixed pedestal is set in one end of channel-section steel；
2) prefabricated steel of strip first and the second prefabricated steel are made with stainless steel plate, the first prefabricated steel and second pre-
The thickness 2-5mm of steel plate processed, width 5-10cm, length is with pond height；Divide in the first prefabricated steel and the second prefabricated steel
Not Han Jie obtained the first connector of the 1st step, the first connector in first, second prefabricated steel between the upper and lower every identical, one
As interval 30-40cm and left and right alignment it is parallel；Set several pre- respectively at the back side of the first prefabricated steel and the second prefabricated steel
Bury fixture；
3) stainless steel square pipe is taken to make pedal, pedal is U-shaped, is formed with square tube bending or three sections of square tubes solderings, its tubing
Thickness 2-4mm, length, width 40-60cm, are threaded or raised anti-skid structure in pedal upper surface, in the U-shaped opening of pedal
Hole, hole of the aperture with the first connector are got through at the 10mm of end respectively；
4) stainless steel rebar is taken to do pin, i.e. the second connector, the second connector diameter is less than on the first connector and pedal
Hole 0.5-1mm；
5) the first prefabricated steel with the first connector, the second prefabricated steel obtained the 2nd step is spaced apart
It is fixed on so that embedded fixing component is pre-buried on the metope of pond；
6) bipod for the U-shaped pedal for obtaining the 3rd step when using is respectively put into prefabricated positioned at the first prefabricated steel and second
In the groove for two the first connectors that correspondence on steel plate is parallel to each other, the second connector is inserted in hole respectively and fixes pedal
Cat ladder is used above and below can be used as on the first parallel connector of left and right two；
7) U-shaped pedal is lifted up being folded on pool wall or reverse dismounting after use, first with the first connector
Prefabricated steel, the second prefabricated steel are reserved on the wall of pond.
Using the detachable U-shaped cat ladder described herein for hydraulic engineering, by the first and second prefabricated steel
On be fixedly connected after the first connector and be embedded into wall, the pressure born on pedal falls in the second and first connector and pre-
On steel plate processed, wall is played a protective role, and cat ladder described herein can bearing strength it is big, it is not variable during use
It may be folded on after shape, use on pool wall or quick dismounting.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 shows the structural representation of the detachable U-shaped cat ladder of herein described hydraulic engineering；
Fig. 2 shows the structural representation that the detachable U-shaped cat ladder of herein described hydraulic engineering is flipped up；
Wherein have：1. the first prefabricated steel；2. the second prefabricated steel；3. the first connector；4. the second connector；5. step on
Plate.
Embodiment
To make the purpose and technical scheme of the application clearer, below in conjunction with skill of the embodiment of the present application to the application
Art scheme is clearly and completely described.Obviously, described embodiment is a part of embodiment of the application, rather than entirely
The embodiment in portion.Based on described embodiments herein, those of ordinary skill in the art are before without creative work
The every other embodiment obtained is put, the scope of the application protection is belonged to.
As shown in figure 1, one end of the first connector 3 is all fixedly mounted in the first prefabricated steel 1 and the second prefabricated steel 2.
Preferably, one end of the first connector 3 is welded in the first prefabricated steel 1 and the second prefabricated steel 2.
The other end of first connector 3 is connected with pedal 5.The other end of first connector 3 opens up the opening of breach upwards,
One end of pedal 5 is overlapped in the breach, and the first connector 3 is with pedal 5 by vertical with the second connector 4 that wall be arranged in parallel
Through connection, the purpose so designed is：
1st, pedal 5 can be flipped up around the second connector 4, pedal 5 or whole cat ladder without using situation
Under, it is flipped up, space can be saved, as shown in Figure 2；
2nd, upwards, pedal 5 is overlapped in the breach breach, and the side plate on breach both sides can stop the double swerve of pedal 5, keep away
Exempt to cause to slide.
Preferably, the first connector 3 is channel-section steel in the application, thus has ready-made breach, saves scribing by bench worker
The man-hour of gap.
Preferably, pedal 5 is square steel tube in the application, and raw material sources are wide, and processes simple, it is easy to accomplish.Pedal 5
For U-shaped structure, can by ready-made square steel tube by preheating and then bending, either can directly clod wash machine-shaping or
Three square steel tube welding fabrications can also be used.
Second connector 4 described herein can be standard component pin, or the rod iron processed, materials
It is abundant.
Preferably, pedal 5 described herein, the first connector 3 and the second connector 4 are stainless steel, this
Sample is out of doors in hydraulic engineering, and it is not easy to get rusty, and especially solves City Pumping Station construction and river course scenic belt appearance requirement phase
The problem of matching.
The present embodiment also discloses a kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering, and its feature includes following work
Skill and step：
1) interception stainless steel channel-section steel is the first connector 3, channel-section steel thickness 3-5mm, groove depth, groove width 30-40mm, length 40-
50mm, the hole of fixed pedestal 5 is set in one end of channel-section steel；
2) strip the first prefabricated steel 1 and the second prefabricated steel 2 are made with stainless steel plate, the first prefabricated steel 1 and the
The thickness 2-5mm of two prefabricated steels 2, width 5-10cm, length is with pond height；In the first prefabricated steel 1 and the second pre-manufactured steel
Be respectively welded the first connector 3 that the 1st step is obtained on plate 2, the first connector 3 in first, second prefabricated steel between the upper and lower
Every identical, typically it is spaced 30-40cm and left and right alignment is parallel；Distinguish at the back side of the first prefabricated steel 1 and the second prefabricated steel 2
Several embedded fixing components are set；
3) stainless steel square pipe is taken to make pedal 5, pedal 5 is U-shaped, is formed with square tube bending or three sections of square tubes solderings, it is managed
Material thickness 2-4mm, length, width 40-60cm, are threaded or raised anti-skid structure in the upper surface of pedal 5, in the U-shaped of pedal 5
Hole, hole of the aperture with the first connector 3 are got through at the 10mm of openend respectively；
4) stainless steel rebar is taken to do pin, i.e. the second connector 4, the diameter of the second connector 4 is less than the first connector 3 and pedal
Hole 0.5-1mm on 5；
5) the first prefabricated steel 1 with the first connector 3, the second prefabricated steel 2 that the 2nd step is obtained are spaced a spacing
It is fixed on from so that embedded fixing component is pre-buried on the metope of pond；
6) bipod for the U-shaped pedal 5 for obtaining the 3rd step when using is respectively put into pre- positioned at the first prefabricated steel 1 and second
In the groove for two the first connectors 3 that correspondence on steel plate 2 processed is parallel to each other, inserting the second connector 4 in hole respectively will step on
Plate 5 be fixed on left and right two the first parallel connectors 3 on can be used as above and below cat ladder use；
7) after use by U-shaped pedal 5 be lifted up being folded on pool wall or it is reverse remove, the with the first connector 3
One prefabricated steel 1, the second prefabricated steel 2 are reserved on the wall of pond.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in the application art.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be explained with idealization or excessively formal implication.
The implication of "and/or" described herein refers to that the simultaneous situation of respective individualism or both is wrapped
Including including.
The implication of " inside and outside " described herein referred to relative to equipment itself, the side inside sensing equipment
To be interior, otherwise is outer.
When the implication of " left and right " described herein refers to reader just to accompanying drawing, the left side of reader is a left side,
The right of reader is the right side.
The implication of " connection " described herein can be that being directly connected between part can also be passed through between part
Other parts are indirectly connected with.
Using the above-mentioned desirable embodiment according to the application as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out in the range of without departing from this application technological thought entirely.The technology of this application
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (1)
1. a kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering, cat ladder includes the first prefabricated steel（1）, the second pre-manufactured steel
Plate（2）, the first connector（3）, the second connector（4）And pedal（5）, wherein, the first prefabricated steel（1）, the second prefabricated steel
（2）It is embedded into parallel to each other in wall；First connector（3）One end be separately fixed at the first prefabricated steel（1）With second
Prefabricated steel（2）On, the first connector（3）It is exposed to outside wall；First connector（3）The other end open up breach opening upwards
Mouthful, pedal（5）One end be overlapped in the breach, the first connector（3）With pedal（5）Connected with wall be arranged in parallel second
Fitting（4）Extend vertically through connection, and pedal（5）Can be around the second connector（4）It is flipped up；
The pedal（5）The U-shape structure being made for stainless steel square steel pipe；The pedal（5）Formed for square steel tube bending；Described
A connection piece（3）For channel-section steel；
The specific manufacture method of the detachable U-shaped cat ladder of described hydraulic engineering, its feature includes following technique and step：
1）Interception stainless steel channel-section steel is the first connector (3), channel-section steel thickness 3-5mm, groove depth, groove width 30-40mm, length 40-
50mm, fixed pedestal is set in one end of channel-section steel（5）Hole；
2）The prefabricated steel of strip first is made with stainless steel plate（1）With the second prefabricated steel（2）, the first prefabricated steel（1）With
Second prefabricated steel（2）Thickness 2-5mm, width
5-10cm, length is with pond height；In the first prefabricated steel（1）With the second prefabricated steel（2）On the 1st step be respectively welded obtain
The first connector arrived（3）, the first connector（3）In first, second prefabricated steel between the upper and lower every identical, general interval
Simultaneously left and right alignment is parallel by 30-40cm；In the first prefabricated steel（1）With the second prefabricated steel（2）The back side set several pre- respectively
Bury fixture；
3）Stainless steel square pipe is taken to make pedal（5）, pedal（5）It is U-shaped, with square tube bending
Form, its tubing thickness 2-4mm, length, width 40-60cm, in pedal（5）Upper surface is threaded anti-skid structure,
Pedal（5）U-shaped opening end 10mm at get through hole respectively, aperture is with the first connector（3）Hole；
4）Stainless steel rebar is taken to do pin, i.e. the second connector（4）, the second connector（4）Diameter is less than the first connector（3）With step on
Plate（5）On hole 0.5-1mm；
5）The first connector is carried by what the 2nd step was obtained（3）The first prefabricated steel（1）, the second prefabricated steel（2）Interval is certain
Distance is fixed on the metope of pond so that embedded fixing component is pre-buried；
6）The U-shaped pedal for obtaining the 3rd step when using（5）Bipod be respectively put into positioned at the first prefabricated steel（1）It is pre- with second
Steel plate processed（2）On two the first connectors being parallel to each other of correspondence（3）Groove in, the second connector is inserted in hole respectively
(4) by pedal（5）It is fixed on two the first parallel connectors in left and right（3）On can be used as above and below cat ladder use；
7）By U-shaped pedal after use（5）It is lifted up being folded on pool wall or reverse dismounting, with the first connector（3）
One prefabricated steel（1）, the second prefabricated steel（2）It is reserved on the wall of pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919308.0A CN105545202B (en) | 2015-01-23 | 2015-01-23 | A kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510036355.0A CN104594797B (en) | 2015-01-23 | 2015-01-23 | A kind of detachable U-shaped cat ladder of hydraulic engineering and manufacture method thereof |
| CN201510919308.0A CN105545202B (en) | 2015-01-23 | 2015-01-23 | A kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510036355.0A Division CN104594797B (en) | 2015-01-23 | 2015-01-23 | A kind of detachable U-shaped cat ladder of hydraulic engineering and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545202A CN105545202A (en) | 2016-05-04 |
| CN105545202B true CN105545202B (en) | 2017-08-25 |
Family
ID=53120807
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510920049.3A Expired - Fee Related CN105464584B (en) | 2015-01-23 | 2015-01-23 | A kind of manufacture method of the detachable cat ladder of hydraulic engineering |
| CN201510036355.0A Active CN104594797B (en) | 2015-01-23 | 2015-01-23 | A kind of detachable U-shaped cat ladder of hydraulic engineering and manufacture method thereof |
| CN201510919308.0A Expired - Fee Related CN105545202B (en) | 2015-01-23 | 2015-01-23 | A kind of manufacture method of the detachable U-shaped cat ladder of hydraulic engineering |
| CN201510919225.1A Pending CN105443031A (en) | 2015-01-23 | 2015-01-23 | Detachable cat ladder for hydraulic engineering |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510920049.3A Expired - Fee Related CN105464584B (en) | 2015-01-23 | 2015-01-23 | A kind of manufacture method of the detachable cat ladder of hydraulic engineering |
| CN201510036355.0A Active CN104594797B (en) | 2015-01-23 | 2015-01-23 | A kind of detachable U-shaped cat ladder of hydraulic engineering and manufacture method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510919225.1A Pending CN105443031A (en) | 2015-01-23 | 2015-01-23 | Detachable cat ladder for hydraulic engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN105464584B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464584B (en) * | 2015-01-23 | 2017-08-04 | 河南省华通水利工程有限公司 | A kind of manufacture method of the detachable cat ladder of hydraulic engineering |
| CN106320381A (en) * | 2016-11-11 | 2017-01-11 | 中车建设工程有限公司 | Manhole ladder assembly |
| CN111088945A (en) * | 2019-11-08 | 2020-05-01 | 浙江大学城市学院 | Test device and method capable of climbing up and down and standing with turnover plate in reaction well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893199U (en) * | 1981-12-18 | 1983-06-24 | 昌一金属株式会社 | Step fittings for utility poles |
| CN2746109Y (en) * | 2004-11-15 | 2005-12-14 | 赵汤进 | Lader and its connecting pipe fitting |
| GB2417751A (en) * | 2004-08-28 | 2006-03-08 | Caswick Ltd | Ladder with pivoting tip-up steps |
| JP4094820B2 (en) * | 2001-02-26 | 2008-06-04 | 株式会社アイ・アイ・ピー | Attachment structure for manholes, etc. |
| CN203783448U (en) * | 2014-04-04 | 2014-08-20 | 河南鼎力杆塔股份有限公司 | Fixing device for crawling ladder of large-bending-moment concrete pole |
| CN203867454U (en) * | 2014-06-09 | 2014-10-08 | 厦门嘉达环保建造工程有限公司 | Inspection well ladder stand |
| CN105464584A (en) * | 2015-01-23 | 2016-04-06 | 苏州多固工程设计有限公司 | Manufacturing method of water conservancy project detachable ladder stand |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190817121A (en) * | 1908-08-14 | 1909-07-01 | Alfred Cotgreave | An Improvement in Automatically Folding Steps. |
| US4402385A (en) * | 1981-05-28 | 1983-09-06 | Buche Peter J | Folding step |
| CN202788598U (en) * | 2012-09-07 | 2013-03-13 | 电联工程技术股份有限公司 | Connecting rod type hidden cat ladder |
| CN203891752U (en) * | 2014-05-09 | 2014-10-22 | 滁州启鹏铁塔制造有限公司 | Anti-climbing ladder of angular tower |
| CN204511283U (en) * | 2015-01-23 | 2015-07-29 | 响水县水利建筑工程处 | The detachable U-shaped cat ladder of a kind of hydraulic engineering |
-
2015
- 2015-01-23 CN CN201510920049.3A patent/CN105464584B/en not_active Expired - Fee Related
- 2015-01-23 CN CN201510036355.0A patent/CN104594797B/en active Active
- 2015-01-23 CN CN201510919308.0A patent/CN105545202B/en not_active Expired - Fee Related
- 2015-01-23 CN CN201510919225.1A patent/CN105443031A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893199U (en) * | 1981-12-18 | 1983-06-24 | 昌一金属株式会社 | Step fittings for utility poles |
| JP4094820B2 (en) * | 2001-02-26 | 2008-06-04 | 株式会社アイ・アイ・ピー | Attachment structure for manholes, etc. |
| GB2417751A (en) * | 2004-08-28 | 2006-03-08 | Caswick Ltd | Ladder with pivoting tip-up steps |
| CN2746109Y (en) * | 2004-11-15 | 2005-12-14 | 赵汤进 | Lader and its connecting pipe fitting |
| CN203783448U (en) * | 2014-04-04 | 2014-08-20 | 河南鼎力杆塔股份有限公司 | Fixing device for crawling ladder of large-bending-moment concrete pole |
| CN203867454U (en) * | 2014-06-09 | 2014-10-08 | 厦门嘉达环保建造工程有限公司 | Inspection well ladder stand |
| CN105464584A (en) * | 2015-01-23 | 2016-04-06 | 苏州多固工程设计有限公司 | Manufacturing method of water conservancy project detachable ladder stand |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464584A (en) | 2016-04-06 |
| CN105443031A (en) | 2016-03-30 |
| CN105464584B (en) | 2017-08-04 |
| CN104594797A (en) | 2015-05-06 |
| CN105545202A (en) | 2016-05-04 |
| CN104594797B (en) | 2016-05-25 |
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