CN115030651A - Sectional quick-release self-locking ladder stand structure and using method thereof - Google Patents
Sectional quick-release self-locking ladder stand structure and using method thereof Download PDFInfo
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- CN115030651A CN115030651A CN202210519364.5A CN202210519364A CN115030651A CN 115030651 A CN115030651 A CN 115030651A CN 202210519364 A CN202210519364 A CN 202210519364A CN 115030651 A CN115030651 A CN 115030651A
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- fixing
- ladder
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000009193 crawling Effects 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 16
- 241000282326 Felis catus Species 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000009194 climbing Effects 0.000 claims 1
- 230000011218 segmentation Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
- E06C1/36—Ladders suspendable by hooks or the like
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a segmented quick-release self-locking type ladder stand structure and a using method thereof, wherein the ladder stand structure comprises a unit type ladder stand, wherein a plurality of unit type ladder stands are sequentially connected up and down to form the ladder stand; the unit type crawling ladder comprises a crawling ladder main body, an upper connecting piece arranged at the upper end of the crawling ladder main body and a lower connecting piece arranged at the lower end of the crawling ladder main body; the fixing piece is used for being arranged on a base body for mounting the ladder stand and is provided with an opening; the end part of the upper connecting piece is provided with an inserting sleeve which is inserted into the corresponding fixing piece; a plurality of fixing pins are symmetrically arranged in the jack of the plug-in sleeve along the radial direction, are positioned below the fixing piece and can extend out along the radial direction of the plug-in sleeve; the end part of the lower connecting piece is provided with a vertical downward inserting column which is inserted into an inserting sleeve on the upper connecting piece of the unit type ladder stand positioned below and drives the fixing pin to radially extend out. The ladder stand can solve the problems that the existing ladder stand is complex in structure, needs to be welded and installed, and is serious in material waste.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a segmented quick-release self-locking ladder stand structure and a using method thereof.
Background
The ladder stand is used as an up-and-down passage for construction personnel and is widely applied to foundation pit engineering, steel structure installation engineering and municipal public engineering construction. Generally, the ladder stand is manufactured and welded on a structural member by workers on site by using steel bars or section steel, the ladder stand is convenient to use, but needs to be welded and connected with a main body structure, the problems of large workload of installation and removal, poor safety and the like are caused, and the steel ladder stand is generally difficult to recycle, so that the material waste is caused.
Disclosure of Invention
The invention provides a segmented quick-release self-locking ladder stand structure and a using method thereof, which are simple in structure and can solve the problems that the existing ladder stand is complex in structure, needs to be welded and installed and is serious in material waste.
In order to achieve the above object, in a first aspect, the present invention provides the following technical solutions: a sectional quick-release self-locking ladder stand structure comprises a unit type ladder stand, wherein the unit type ladder stand is formed by sequentially connecting the upper part and the lower part; the unit type crawling ladder comprises a crawling ladder main body, an upper connecting piece arranged at the upper end of the crawling ladder main body and a lower connecting piece arranged at the lower end of the crawling ladder main body, wherein the upper connecting piece and the lower connecting piece are both arranged vertically to the crawling ladder main body; the fixing piece is used for being installed on a base body for installing the ladder stand, and an opening is formed in the fixing piece; the end part of the upper connecting piece is vertically provided with an inserting sleeve, an inserting hole is formed in the inserting sleeve, and the inserting sleeve is inserted into the opening hole in the corresponding fixing piece; a plurality of fixing pins are symmetrically arranged in the jack of the plug-in sleeve along the radial direction, and the fixing pins are positioned below the fixing piece and can extend out along the radial direction of the plug-in sleeve; the end part of the lower connecting piece is provided with a vertically downward inserting column which is inserted into an inserting sleeve on the upper connecting piece of the unit type crawling ladder positioned below and drives the fixing pin to radially extend out; and the top locking piece is inserted into the inserting sleeve on the upper connecting piece of the uppermost unit type ladder stand and drives the fixing pin to radially extend.
Preferably, an elastic piece is arranged between the fixing pin and the plug sleeve, and the elastic piece drives the fixing pin to return to the original position after the plug column or the top locking piece is pulled out of the plug sleeve.
Preferably, the elastic part be the spring, the axial cup joints in the outside of fixed pin, one end offsets with the grafting sleeve, the other end offsets with the lateral wall of fixed pin.
Preferably, a circle of groove is formed in the side wall of the inserting sleeve around the fixing pin, a blocking table is arranged on the outer side wall of the fixing pin, and the elastic piece is arranged between the end portion of the groove and the blocking table.
Preferably, one end of the fixing pin, which is positioned inside the plug sleeve, is provided with an arc surface.
Preferably, the lower end parts of the plug column and the top locking piece are provided with ball heads.
Preferably, the top locking piece is in a T shape, and the vertical part of the top locking piece is inserted into the plug sleeve.
In a second aspect, the invention further provides a use method of the segmented quick-release self-locking ladder stand structure according to the first aspect, which comprises the following specific steps:
s1, manufacturing each component and a top locking piece of the unit type ladder stand according to actual needs;
s2, marking corresponding positions on the base body for installing the ladder stand, and installing a plurality of fixing pieces on the base body in a welding or bolt connection mode;
s3, hoisting the first section of unit ladder by using hoisting equipment, and respectively inserting the insertion sleeve at the end part of the upper connecting piece and the insertion column of the lower connecting piece into the corresponding circular holes on the fixing piece;
s4, hoisting the second section unit type ladder stand to enable the insertion sleeve at the end part of the upper connecting piece on the second section to be inserted into the round hole of the corresponding fixing piece, inserting the insertion column of the lower connecting piece into the fixing sleeve of the upper connecting piece on the first section unit type ladder stand, and popping up the fixing pin under the action of the insertion column when inserting to form a stable structure with the fixing piece;
s4, sequentially hoisting the rest unit ladder stands to a preset height by analogy, inserting a locking buckle into the fixed sleeve of the upper connecting piece of the uppermost unit ladder stand, and popping up a fixing pin under the action of the locking buckle to form a stable structure with the fixing piece;
and S5, after the use is finished, the locking buckle is pulled out, and the hoisting machinery is used from top to bottom to hoist each unit type ladder stand to the designated position sequentially for the next use.
Compared with the prior art, the invention has the beneficial effects that:
the ladder stand is simple in structure, and the installation mode that the upper connecting piece and the lower connecting piece are inserted into the fixing piece is adopted during installation, so that the personnel is prevented from needing high-altitude welding operation, and the safety of ladder stand installation is improved; the self-locking function between connecting piece and the mounting can be realized through the fixed pin, the safe fastness of cat ladder installation is improved, the cat ladder regularization preparation can have enough to meet the need the use, realizes the saving of material.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a schematic view of the overall installation front structure of the present invention;
FIG. 3 is a block diagram of the upper connector of the present invention;
FIG. 4 is a block diagram of the lower connector of the present invention;
FIG. 5 is a cross-sectional structural view of the fixing socket of the present invention;
FIG. 6 is a cross-sectional view of the self-locking state of the fixing sleeve of the present invention;
FIG. 7 is a block diagram of the fastener of the present invention;
fig. 8 is a block diagram of the top lock of the present invention.
Reference numerals:
1. ladder stand main part, 2, upper junction spare, 21, connecting rod, 22, grafting sleeve, 23, fixed pin, 24, elastic component, 25, keep off the platform, 26, arc surface, 27, recess, 3, lower connecting piece, 31, grafting post, 32, bulb, 4, mounting, 5, top locking piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1 to 8, in order to solve the technical problem of the present invention, in order to solve the deficiencies in the prior art, an embodiment is provided:
example 1:
the embodiment provides a sectional quick-release self-locking type ladder stand structure which comprises a unit type ladder stand, wherein the unit type ladder stand is sequentially connected up and down to form the ladder stand; the unit type crawling ladder comprises a crawling ladder main body 1, an upper connecting piece 2 arranged at the upper end of the crawling ladder main body 1 and a lower connecting piece 3 arranged at the lower end of the crawling ladder main body 1, wherein the upper connecting piece 2 and the lower connecting piece 3 are both arranged perpendicular to the crawling ladder main body 1; the fixing piece 4 is used for being installed on a base body for installing the ladder stand, and the fixing piece 4 is provided with an opening; the end part of the upper connecting piece 2 is vertically provided with an inserting sleeve 22, an inserting hole is arranged in the inserting sleeve 22, and the inserting sleeve 22 is inserted into the corresponding opening on the fixing piece 4; a plurality of fixing pins 23 are symmetrically arranged in the jack of the plug-in sleeve 22 along the radial direction, and the fixing pins 23 are positioned below the fixing piece 4 and can extend out along the radial direction of the plug-in sleeve 22; the end part of the lower connecting piece 3 is provided with a vertically downward inserting column 31, the inserting column 31 is inserted into the inserting sleeve 22 on the upper connecting piece 2 of the unit ladder stand positioned below, and the fixing pin 23 is driven to radially extend; the top locking piece 5 is inserted into the plug-in sleeve 22 on the upper connecting piece 2 of the uppermost modular ladder and drives the fixing pins 23 to extend radially.
Specifically, cat ladder main part 1 form by two vertical square steel pipes and a plurality of horizontal square steel tube welding, the single section height is no more than 2 meters, bulk strength is big, go up connecting piece 2 and connecting piece 3 down and be the structure of arranging side by side, can weld with cat ladder main part 1, every unit type cat ladder's structure is the same, can carry out large-scale production, can adopt the structure of small volume, convenient transportation.
The fixing piece 4 is of an L-shaped structure, if the base body is of a concrete structure, the fixing piece 4 can be connected with the base body in a pre-embedded mode, round holes in the fixing piece 4 are formed in the horizontal portion of the fixing piece, and the number of the round holes corresponds to that of the upper connecting pieces 2.
Go up connecting piece 2 and include connecting rod 21 and the grafting sleeve 22 of setting in connecting rod 21 one end, connecting rod 21 can be integrated into one piece with grafting sleeve 22, also can be welded connection together, connecting rod 21 can adopt the square steel pipe to make, the quantity of fixed pin 23 is two at least, the symmetry sets up, also can set up to be 4, evenly arrange round the circumference, can firmly block limit fixing part 4, fixed pin 23 can be cylindrical, also can be other cross sectional shapes of rectangular shape.
The diameter of the plug-in post 31 and the top-locking piece 5 is smaller than the diameter of the insertion hole on the plug-in sleeve 22, so that the plug-in post 31 and the top-locking piece 5 can be easily inserted into the plug-in sleeve 22 as long as the fixing pin 23 can be extended radially.
The top locking piece 5 is T-shaped, and the vertical part of the top locking piece is inserted into the plug-in sleeve 22, so that the use is convenient.
In this embodiment, the elastic member 24 is disposed between the fixing pin 23 and the inserting sleeve 22, and the elastic member 24 drives the fixing pin 23 to return to the original position after the inserting column 31 or the top locking member 5 is pulled out from the inserting sleeve 22, so that the ladder stand can be detached more quickly by the elastic member 24, and the fixing pin 23 does not need to be adjusted when the ladder stand is installed next time, which is very convenient. In this embodiment, the elastic element 24 may be a spring, which is axially sleeved on the outer side of the fixing pin 23, and one end of the spring abuts against the insertion sleeve 22, and the other end of the spring abuts against the outer side wall of the fixing pin 23. The extended fixing pin 23 can be axially pulled back through a spring, specifically, a circle of groove 27 is formed around the fixing pin 23 on the side wall of the plug-in sleeve 22, a blocking platform 25 is arranged on the outer side wall of the fixing pin 23, the elastic piece 24 is arranged between the end part of the groove 27 and the blocking platform 25, when the fixing pin 23 moves, the blocking platform 25 can be embedded into the groove 27 to compress the elastic piece 24, meanwhile, the end part of the groove 27 can limit the movement of the fixing pin 23, and in order to prevent the fixing pin 23 from falling off, two ends of the elastic piece 24 can be respectively fixedly connected with the plug-in sleeve 22 and the fixing pin 23, for example, welding, clamping, bonding or the like can be adopted.
In order to make the plug-in post 31 smoothly push the fixing pin 23, as shown in fig. 5-6, an arc surface 26 is disposed at one end of the fixing pin 23 located inside the plug-in sleeve 22, and the fixing pin 23 can be pushed to the side when the plug-in post 31 contacts with the arc surface 26. In order to better eject the fixing pin 23, the lower end parts of the insertion column 31 and the top locking piece 5 are provided with ball heads 32, so that the contact between the lower end of the insertion column 31 and the fixing pin 23 is point contact, and the clamping is prevented.
Example 2:
the embodiment also provides a use method of the segmented quick-release self-locking ladder stand structure according to the embodiment 1, which comprises the following specific steps:
s1, manufacturing each component and a top locking piece of the unit type ladder stand according to actual needs;
s2, marking corresponding positions on the base body for installing the ladder stand, and installing a plurality of fixing pieces 4 on the base body in a welding or bolt connection mode;
s3, hoisting the first section of unit ladder by using hoisting equipment, and respectively inserting the insertion sleeve 22 at the end part of the upper connecting piece 2 and the insertion column 31 of the lower connecting piece 3 into the corresponding round holes on the fixing piece 4;
s4, hoisting the second section unit type ladder stand, inserting the insertion sleeve 22 at the end part of the upper connecting piece 2 on the second section into the round hole of the corresponding fixing piece 4, inserting the insertion column 31 of the lower connecting piece 3 into the fixing sleeve 22 of the upper connecting piece 2 on the first section unit type ladder stand, and popping up the fixing pin 23 under the action of the insertion column 31 when inserting to form a stable structure with the fixing piece 4;
s4, sequentially hoisting the rest unit ladder stands to a preset height by analogy, inserting the locking buckle 5 into the fixing sleeve 22 of the upper connecting piece 2 of the uppermost unit ladder stand, and popping the fixing pin 23 under the action of the locking buckle 5 to form a stable structure with the fixing piece 4;
if the height of the ladder stand needs to be increased, the locking buckle 5 is removed, the unit ladder stands are continuously installed, and the locking buckle 5 is inserted after the uppermost unit ladder stand is installed.
And S5, after the use is finished, the locking buckle 5 is pulled out, and the lifting machinery is used from top to bottom to lift each unit ladder to a specified position so as to be used next time.
Therefore, the ladder stand in the embodiment is simple in structure, and the installation mode that the upper connecting piece and the lower connecting piece are inserted into the fixing piece is adopted during installation, so that the requirement of high-altitude welding operation for personnel is avoided, and the installation safety of the ladder stand is improved; the self-locking function between connecting piece and the mounting can be realized through the fixed pin, the safe fastness of cat ladder installation is improved, the cat ladder regularization preparation can have enough to meet the need the use, realizes the saving of material.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (8)
1. The utility model provides a segmentation quick detach is from locking-type cat ladder structure which characterized in that includes:
the unit type crawling ladder is sequentially connected up and down to form the crawling ladder;
the unit type ladder stand comprises a ladder stand main body (1), an upper connecting piece (2) arranged at the upper end of the ladder stand main body (1) and a lower connecting piece (3) arranged at the lower end of the ladder stand main body (1), wherein the upper connecting piece (2) and the lower connecting piece (3) are both arranged perpendicular to the ladder stand main body (1);
the fixing piece (4) is used for being installed on a base body for installing the ladder stand, and an opening is formed in the fixing piece (4);
an inserting sleeve (22) is vertically arranged at the end part of the upper connecting piece (2), an inserting hole is formed in the inserting sleeve (22), and the inserting sleeve (22) is inserted into the opening hole in the corresponding fixing piece (4);
a plurality of fixing pins (23) are symmetrically arranged in the jacks of the plug-in sleeve (22) along the radial direction, and the fixing pins (23) are positioned below the fixing piece (4) and can extend out along the radial direction of the plug-in sleeve (22);
the end part of the lower connecting piece (3) is provided with a vertically downward inserting column (31), the inserting column (31) is inserted into an inserting sleeve (22) on the upper connecting piece (2) of the unit ladder stand positioned below, and a fixing pin (23) is driven to radially extend out;
the top locking piece (5) is inserted into the plug-in sleeve (22) on the upper connecting piece (2) of the uppermost unit ladder and drives the fixing pin (23) to radially extend.
2. The self-locking ladder stand structure capable of being disassembled quickly in sections according to claim 1, is characterized in that: an elastic piece (24) is arranged between the fixing pin (23) and the inserting sleeve (22), and the elastic piece (24) drives the fixing pin (23) to return to the original position after the inserting column (31) or the top locking piece (5) is pulled out of the inserting sleeve (22).
3. The self-locking ladder stand structure capable of being disassembled quickly in sections according to claim 2, is characterized in that: the elastic piece (24) is a spring, the elastic piece is axially sleeved on the outer side of the fixing pin (23), one end of the elastic piece is abutted to the inserting sleeve (22), and the other end of the elastic piece is abutted to the outer side wall of the fixing pin (23).
4. The self-locking ladder stand structure capable of being disassembled quickly in sections according to claim 2, is characterized in that: the side wall of the plug-in sleeve (22) is provided with a circle of groove (27) around the fixing pin (23), the outer side wall of the fixing pin (23) is provided with a blocking platform (25), and the elastic piece (24) is arranged between the end part of the groove (27) and the blocking platform (25).
5. The self-locking ladder stand structure capable of being disassembled quickly in sections according to claim 1, is characterized in that: one end of the fixing pin (23) positioned in the inserting sleeve (22) is provided with an arc surface (26).
6. The stair climbing structure with the self-locking function and the quick-release function according to claim 1, wherein: the lower end parts of the inserting column (31) and the top locking piece (5) are provided with ball head parts (32).
7. The self-locking ladder stand structure capable of being disassembled quickly in sections according to claim 1, is characterized in that: the top locking piece (5) is T-shaped, and the vertical part of the top locking piece is inserted into the plug-in sleeve (22).
8. The use method of the segmented quick-release self-locking ladder stand structure according to any one of claims 1 to 7 is characterized by comprising the following specific steps:
s1, manufacturing each component and a top locking piece of the unit type ladder stand according to actual needs;
s2, marking corresponding positions on the base body for installing the ladder stand, and installing a plurality of fixing pieces (4) on the base body in a welding or bolt connection mode;
s3, hoisting the first section of unit ladder by using hoisting equipment, and respectively inserting the insertion sleeve (22) at the end part of the upper connecting piece (2) and the insertion column (31) of the lower connecting piece (3) into the corresponding round holes on the fixing pieces (4);
s4, hoisting the second section unit type ladder stand, inserting the inserting sleeve (22) at the end part of the upper connecting piece (2) on the second section into the round hole of the corresponding fixing piece (4), inserting the inserting column (31) of the lower connecting piece (3) into the fixing sleeve (22) of the upper connecting piece (2) on the first section unit type ladder stand, and popping up the fixing pin (23) under the action of the inserting column (31) when inserting to form a stable structure with the fixing piece (4);
s4, sequentially hoisting the rest unit ladder stands to a preset height by analogy, inserting a locking buckle (5) into the fixing sleeve (22) of the upper connecting piece (2) of the uppermost unit ladder stand, and popping the fixing pin (23) under the action of the locking buckle (5) to form a stable structure with the fixing piece (4);
and S5, after the ladder is used, pulling out the locking buckle (5), and using a hoisting machine from top to bottom to hoist each section of the unit ladder to a specified position for the next use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519364.5A CN115030651A (en) | 2022-05-12 | 2022-05-12 | Sectional quick-release self-locking ladder stand structure and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210519364.5A CN115030651A (en) | 2022-05-12 | 2022-05-12 | Sectional quick-release self-locking ladder stand structure and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115030651A true CN115030651A (en) | 2022-09-09 |
Family
ID=83121547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210519364.5A Pending CN115030651A (en) | 2022-05-12 | 2022-05-12 | Sectional quick-release self-locking ladder stand structure and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115030651A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1595493A (en) * | 1978-05-19 | 1981-08-12 | Robertson Co H H | Access ladder for a land drainage manhole sump |
| CN202451039U (en) * | 2012-02-19 | 2012-09-26 | 中国十七冶集团有限公司 | Combined type ladder for installing steel columns in factory |
| CN204113103U (en) * | 2014-07-26 | 2015-01-21 | 国家电网公司 | A kind of extendible steel tube tower in electric transmission line frame climbing ladder |
| CN207436897U (en) * | 2017-11-07 | 2018-06-01 | 河海大学常州校区 | A kind of detachable offshore wind turbine foundation cat ladder |
| CN209637679U (en) * | 2018-09-25 | 2019-11-15 | 上海建工集团股份有限公司 | The segmented assembly formula ladder to pass through up and down for high altitude operation personnel |
| CN111648715A (en) * | 2020-07-10 | 2020-09-11 | 楼和根 | A cat ladder for building outer wall climbing usefulness |
| CN212376572U (en) * | 2020-04-13 | 2021-01-19 | 中建三局集团有限公司 | Ladder is hung to engineering that can divide segmentation to connect long |
| CN213205529U (en) * | 2020-08-03 | 2021-05-14 | 福建宏瑞建设工程有限公司 | Cable shaft cat ladder structure |
| CN214247190U (en) * | 2020-12-23 | 2021-09-21 | 葫芦岛国华能源装备集团有限公司 | Vertical storage tank ladder |
| CN214576717U (en) * | 2020-12-30 | 2021-11-02 | 中建三局集团有限公司 | But quick assembly disassembly's cat ladder |
| CN216197769U (en) * | 2021-09-03 | 2022-04-05 | 中交路桥建设有限公司 | Retractable box girder crawling ladder convenient to disassemble and assemble |
-
2022
- 2022-05-12 CN CN202210519364.5A patent/CN115030651A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1595493A (en) * | 1978-05-19 | 1981-08-12 | Robertson Co H H | Access ladder for a land drainage manhole sump |
| CN202451039U (en) * | 2012-02-19 | 2012-09-26 | 中国十七冶集团有限公司 | Combined type ladder for installing steel columns in factory |
| CN204113103U (en) * | 2014-07-26 | 2015-01-21 | 国家电网公司 | A kind of extendible steel tube tower in electric transmission line frame climbing ladder |
| CN207436897U (en) * | 2017-11-07 | 2018-06-01 | 河海大学常州校区 | A kind of detachable offshore wind turbine foundation cat ladder |
| CN209637679U (en) * | 2018-09-25 | 2019-11-15 | 上海建工集团股份有限公司 | The segmented assembly formula ladder to pass through up and down for high altitude operation personnel |
| CN212376572U (en) * | 2020-04-13 | 2021-01-19 | 中建三局集团有限公司 | Ladder is hung to engineering that can divide segmentation to connect long |
| CN111648715A (en) * | 2020-07-10 | 2020-09-11 | 楼和根 | A cat ladder for building outer wall climbing usefulness |
| CN213205529U (en) * | 2020-08-03 | 2021-05-14 | 福建宏瑞建设工程有限公司 | Cable shaft cat ladder structure |
| CN214247190U (en) * | 2020-12-23 | 2021-09-21 | 葫芦岛国华能源装备集团有限公司 | Vertical storage tank ladder |
| CN214576717U (en) * | 2020-12-30 | 2021-11-02 | 中建三局集团有限公司 | But quick assembly disassembly's cat ladder |
| CN216197769U (en) * | 2021-09-03 | 2022-04-05 | 中交路桥建设有限公司 | Retractable box girder crawling ladder convenient to disassemble and assemble |
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