CN110374490B - Folding ladder - Google Patents
Folding ladder Download PDFInfo
- Publication number
- CN110374490B CN110374490B CN201910687046.8A CN201910687046A CN110374490B CN 110374490 B CN110374490 B CN 110374490B CN 201910687046 A CN201910687046 A CN 201910687046A CN 110374490 B CN110374490 B CN 110374490B
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- China
- Prior art keywords
- rotating shaft
- fixed
- ladder body
- supporting
- support
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- 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.)
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Classifications
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- 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
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
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- 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
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
- E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/006—Devices for preventing access
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/423—Ladder stabilising struts
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/46—Non-skid equipment
Abstract
The invention discloses a folding ladder, which comprises a ladder body, a support frame for supporting the ladder body, a movable device movably connected with the upper end of the support frame at the upper end of the ladder body, an adjusting device for adjusting the angle of the ladder body, two sets of anti-skidding devices arranged on the ladder body and anti-toppling devices arranged on two sides of the support frame, wherein the adjusting device is used for adjusting the angle of the ladder body, the anti-skidding devices enable the integral stability of the ladder body not to be influenced after the angle is adjusted, and the anti-toppling devices are used for preventing the ladder body from swaying left and right. The ladder disclosed by the invention realizes the anti-slip and anti-toppling of the ladder, is more stable in the using process, and avoids the occurrence of safety accidents of operators.
Description
Technical Field
The invention relates to the field of ladders, in particular to a folding ladder.
Background
The ladder is widely applied to various industries and can help operators to climb from a low place to a high place for operation. According to the restriction of the use space, there is a ladder which needs to be used by inclining a leaning wall surface, and the ladder has the phenomenon of slipping and falling and damages to the leaning wall surface or objects.
Disclosure of Invention
The invention provides a folding ladder for overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a folding ladder, includes the ladder body, is used for supporting the support frame of the ladder body, ladder body upper end and support frame upper end swing joint's head, is used for adjusting the adjusting device of ladder body angle, locates two sets of antiskid on the ladder body, locates the anti-overturning device of support frame both sides, the ladder body includes the footboard, is located two support arms that the footboard both sides are used for fixed footboard, fixes the backplate of locating on the support arm, the ladder body passes through the head with the support frame and is connected. The anti-skidding device is provided with the two groups of anti-skidding devices, so that the contact part of the ladder body and the bottom surface is prevented from skidding; the anti-toppling device is arranged, so that the ladder body is prevented from shaking when a worker stands on the ladder body to work; the movable device is arranged, so that the ladder body and the support frame can be connected together, the angle of the ladder body can be adjusted, and the ladder is suitable for various middle-height operations; through setting up the support frame, avoid the ladder body and wall contact, cause the wall damage, can be close to the wall simultaneously, avoid the space problem, influence the ladder and use.
The supporting frame comprises a first supporting leg and a second supporting leg, a first supporting rod sleeved on the first supporting leg, a second supporting rod sleeved on the second supporting leg, a first sliding groove arranged on the first supporting rod, a second sliding groove arranged on the second supporting rod, a plurality of telescopic bearing blocks arranged on the first supporting leg and the second supporting leg in an equidistant array mode, a plurality of supporting blocks for fixing the first supporting leg and the second supporting leg below the telescopic bearing blocks, and a plurality of fixing grooves arranged in the first sliding groove and the second sliding groove, wherein the first supporting leg and the second supporting leg are in contact with the bottom surface; the first support leg and the second support leg are pulled to adjust the height of the whole support frame, and the telescopic weighing block fixes the height of the support frame; the first supporting rod and the second supporting rod are arranged on the second supporting rod in a sleeved mode, the supporting frame can be integrally adjusted to adapt to angle adjustment of the ladder body, the adjustable height is fixed through the telescopic supporting block, the supporting block is arranged below the telescopic supporting block, the telescopic supporting block is prevented from being bent, and stretching and bearing are affected.
The movable device comprises a first fixed seat and a second fixed seat which are fixedly arranged on the two support arms, and a first rotating shaft which simultaneously penetrates through the first fixed seat and the second fixed seat; the ladder body and the supporting frame are movably connected through the first rotating shaft and are convenient to fold.
The adjusting device comprises a third fixing seat and a fourth fixing seat which are arranged at the middle positions of the two support arms, a second rotating shaft which simultaneously penetrates through the third fixing seat and the fourth fixing seat, a first moving block which is arranged on the first support rod and in the first sliding groove, a second moving block which is arranged on the second support rod and in the second sliding groove, a third rotating shaft which is rotatably arranged on the first moving block and the second moving block, two connecting rods which are arranged on the second rotating shaft at one end and on the third rotating shaft at the other end, and two fixed columns which penetrate through the first moving block and the second moving block and are inserted into the fixed grooves; through second pivot and third pivot, when making first movable block and second movable block reciprocate, the connecting rod can overturn, accomplishes the regulation of ladder body angle, is equipped with the fixed column on rethread first movable block and the second movable block, makes to carry out the fixed action after adjusting the position.
The anti-slip device comprises a fifth rotating shaft, anti-slip seats, half teeth, a pinion, a first anti-slip sheet, a second anti-slip sheet, a sixth rotating shaft and a locking part, wherein the fifth rotating shaft is rotatably arranged at the bottom end of the support arm; through rotating the fifth pivot of locating on the support arm, make the antiskid seat that is located the fifth pivot both ends can rotate, make ladder body angle regulation back, antiskid seat bottom surface can contact with ground all the time, ensure with bottom surface area of contact, avoid area of contact to reduce and produce the ladder body and slide, through locking portion, make first antiskid sheets and second antiskid sheets can be close to each other and keep away from, first antiskid sheets and second antiskid sheets are close to each other and play braking effect, keep away from the rotatable adjusting position of antiskid seat.
The locking part comprises a sleeve sleeved on the sixth rotating shaft and fixed on the support arm, a pressure spring, a seventh rotating shaft, a spanner, two special-shaped blocks and a buckle, wherein one end of the pressure spring is positioned between the sleeve and the sixth rotating shaft and fixed on the sixth rotating shaft; through pulling the spanner, make the movable block rotate, make the sixth pivot remove to the spanner direction, make first antiskid sheet and second antiskid sheet be close to each other, accomplish fixed to the antiskid seat, it is fixed to the spanner through the buckle, avoid using in-process spanner playback, and the influence is used, and spanner playback when needing to adjust, through the pressure spring, makes first antiskid sheet and second antiskid sheet can part, makes the antiskid seat can rotate.
The anti-toppling device comprises an eighth rotating shaft, a stretching rod, a fixed switch, a ninth rotating shaft, two anti-toppling feet and a connecting fixed rod, wherein the eighth rotating shaft is rotatably arranged on the first supporting rod, the stretching rod is fixedly arranged on the eighth rotating shaft, the fixed switch is arranged on the stretching rod, the ninth rotating shaft is arranged at the bottom end of the stretching rod, the two anti-toppling feet are arranged at two ends of the ninth rotating shaft, the connecting fixed rod is fixedly arranged on the two anti-toppling feet and is positioned between the two anti-toppling feet, the stretching rod is rotated and stretched; through the eighth pivot, make tensile pole can rotate, through the length of tensile pole regulation tensile pole, tensile pole angle regulation at will, rethread fixed switch makes tensile pole length fixed, avoids rocking about the ladder body, through swing joint's ninth pivot, makes and prevents empting the foot and can rotate, makes and prevents empting the sole face and can contact ground, avoids the telescopic link to slide.
The invention has the following advantages: by arranging two sets of anti-skidding devices, the contact part of the ladder body and the bottom surface is prevented from sliding; the anti-toppling device is arranged, so that the ladder body is prevented from shaking when a worker stands on the ladder body to work; the movable device is arranged, so that the ladder body and the support frame can be connected together, the angle of the ladder body can be adjusted, and the ladder is suitable for various middle-height operations; through setting up the support frame, avoid the ladder body and wall contact, cause the wall damage, can be close to the wall simultaneously, avoid the space problem, influence the ladder and use.
Drawings
FIG. 1 is a schematic view of a folding ladder.
Fig. 2 is a schematic structural view of the support frame.
Fig. 3 is a first cross-sectional view of the support frame.
Fig. 4 is a second cross-sectional view of the supporting frame.
Fig. 5 is a third schematic sectional view of the supporting frame.
Fig. 6 is a schematic view of the anti-skid device.
Fig. 7 is an enlarged view of a portion a in fig. 6.
Fig. 8 is a schematic sectional view of the antiskid device.
Fig. 9 is a schematic structural view of the locking portion.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-9, a folding ladder comprises a ladder body 1, a support frame 2 for supporting the ladder body, a movable device 3 movably connected with the upper end of the support frame at the upper end of the ladder body, an adjusting device 4 for adjusting the angle of the ladder body, two sets of anti-skid devices 5 arranged on the ladder body, and anti-toppling devices 6 arranged at two sides of the support frame, wherein the ladder body comprises a pedal 11, two support arms 12 arranged at two sides of the pedal and used for fixing the pedal, and guard plates 13 fixedly arranged on the support arms, the ladder body is connected with the support frame through the movable device, the support frame is perpendicular to the ground, and the angle of the ladder body and the support frame is adjusted through the.
Further, the support frame 2 comprises a first support leg 21 and a second support leg 22, a first support bar 23 sleeved on the first support leg, a second support bar 24 sleeved on the second support leg, a first sliding groove 25 arranged on the first support bar, a second sliding groove 26 arranged on the second support bar, a plurality of telescopic support blocks 27 arranged on the first support leg and the second support leg in an equidistant array manner, a plurality of support blocks 28 for fixing the first support leg and the second support leg below the telescopic support blocks, and a plurality of fixing grooves 29 arranged in the first sliding groove and the second sliding groove, wherein the first support leg and the second support leg are in contact with the bottom surface; the first support leg and the second support leg are pulled to adjust the height of the whole support frame, and the telescopic weighing block fixes the height of the support frame; the first supporting rod and the second supporting rod are arranged on the second supporting rod in a sleeved mode, the supporting frame can be integrally adjusted to adapt to angle adjustment of the ladder body, the adjustable height is fixed through the telescopic supporting block, the supporting block is arranged below the telescopic supporting block, the telescopic supporting block is prevented from being bent, and stretching and bearing are affected.
Further, the movable device 3 comprises a first fixing seat 31 and a second fixing seat 32 which are fixedly arranged on the two support arms, and a first rotating shaft 33 which penetrates through the first fixing seat and the second fixing seat, and the ladder body and the support frame are movably connected through the first rotating shaft and are convenient to fold.
Further, the adjusting device 4 comprises a third fixing seat 41 and a fourth fixing seat 42 which are arranged at the middle positions of the two support arms, a second rotating shaft 43 which penetrates through the third fixing seat and the fourth fixing seat simultaneously, a first moving block 44 which is arranged on the first support rod in a first sliding groove, a second moving block 45 which is arranged on the second support rod in a second sliding groove, a third rotating shaft 46 which is rotatably arranged on the first moving block and the second moving block, two connecting rods 47 which are arranged on the second rotating shaft at one end and on the third rotating shaft at the other end, two fixing columns 48 which penetrate through the first moving block and the second moving block and are inserted into the fixing grooves, the third rotating shaft is moved, the first moving block and the second moving block move up and down, after the positions are determined, the moving columns are inserted into the fixing grooves, and fixing the first moving block and the second moving block to complete the adjustment and fixation of the angle of the ladder body.
Furthermore, the anti-skid device 5 comprises a fifth rotating shaft 51 rotatably arranged at the bottom end of the support arm, anti-skid seats 52 positioned at two ends of the fifth rotating shaft and two sides of the support arm, a half tooth 53 arranged on the anti-skid seats, a pinion 54 positioned at one side of the support arm and meshed with the half tooth, a first anti-skid sheet 55 fixedly arranged at the center of the pinion, a second anti-skid sheet 56 symmetrically arranged on the support arm and fixed on the pinion, a sixth rotating shaft 57 rotatably arranged on the support arm and penetrating through the first anti-skid sheet and the second anti-skid sheet simultaneously and a locking part 58 positioned at the other side of the support arm, wherein the anti-skid seats rotate to adjust the angle of the ladder body to drive the pinion to rotate, the sixth rotating shaft is pulled by the locking part, the first anti-skid sheet and the second anti-skid sheet are close to stop the rotation; through rotating the fifth pivot of locating on the support arm, make the antiskid seat that is located the fifth pivot both ends can rotate, make ladder body angle regulation back, antiskid seat bottom surface can contact with ground all the time, ensure with bottom surface area of contact, avoid area of contact to reduce and produce the ladder body and slide, through locking portion, make first antiskid sheets and second antiskid sheets can be close to each other and keep away from, first antiskid sheets and second antiskid sheets are close to each other and play braking effect, keep away from the rotatable adjusting position of antiskid seat.
Further, the locking portion 58 is located the sixth pivot and fixes the sleeve 581 on the support arm including the cover, be located sleeve and the middle one end of sixth pivot and fix the epaxial pressure spring 582 of sixth pivot, the epaxial seventh pivot 583 of sixth pivot is located in the rotation, fix the spanner 584 of locating the seventh pivot intermediate position, fix two special-shaped blocks 585 of locating the seventh pivot both ends, fix locate on the support arm with spanner complex buckle 586, the spanner pulls to the buckle direction, the seventh pivot rotates, two movable blocks rotate, the sixth pivot removes to the spanner direction simultaneously, lock the spanner through the buckle, loosen the locking to the spanner, the pressure spring promotes the sixth pivot and removes to the pinion direction, first antiskid ribbed tile and second antiskid ribbed tile separately.
Further, the anti-toppling device 6 comprises an eighth rotating shaft 61 rotatably arranged on the first supporting rod, a stretching rod 62 fixedly arranged on the eighth rotating shaft, a fixed switch 63 arranged on the stretching rod, a ninth rotating shaft 64 arranged at the bottom end of the stretching rod, two anti-toppling feet 65 arranged at two ends of the ninth rotating shaft, a connecting fixed rod 66 fixedly arranged on the two anti-toppling feet and positioned between the two anti-toppling feet, the stretching rod is rotated and stretched, the anti-toppling feet are in contact with the ground, and the fixed switch fixes the length of the stretching rod; through the eighth pivot, make tensile pole can rotate, through the length of tensile pole regulation tensile pole, tensile pole angle regulation at will, rethread fixed switch makes tensile pole length fixed, avoids rocking about the ladder body, through swing joint's ninth pivot, makes and prevents empting the foot and can rotate, makes and prevents empting the sole face and can contact ground, avoids the telescopic link to slide.
Claims (2)
1. A folding ladder comprises a ladder body (1), a support frame (2) for supporting the ladder body, a movable device (3) movably connected with the upper end of the support frame at the upper end of the ladder body, an adjusting device (4) for adjusting the angle of the ladder body, two groups of anti-skid devices (5) arranged on the ladder body and anti-toppling devices (6) arranged at two sides of the support frame, wherein the ladder body comprises a pedal (11), two support arms (12) positioned at two sides of the pedal and used for fixing the pedal, and a protective plate (13) fixedly arranged on the support arms; the supporting frame (2) comprises a first supporting leg (21) and a second supporting leg (22), a first supporting rod (23) sleeved on the first supporting leg, a second supporting rod (24) sleeved on the second supporting leg, a first sliding groove (25) arranged on the first supporting rod, a second sliding groove (26) arranged on the second supporting rod, a plurality of telescopic supporting blocks (27) arranged on the first supporting leg and the second supporting leg in an equidistant array mode, a plurality of supporting blocks (28) for fixing the first supporting leg and the second supporting leg below the telescopic supporting blocks, and a plurality of fixing grooves (29) arranged in the first sliding groove and the second sliding groove; the movable device (3) comprises a first fixed seat (31) and a second fixed seat (32) which are fixedly arranged on the two support arms, and a first rotating shaft (33) which simultaneously penetrates through the first fixed seat and the second fixed seat; the adjusting device (4) comprises a third fixed seat (41) and a fourth fixed seat (42) which are arranged in the middle positions of the two support arms, a second rotating shaft (43) which simultaneously penetrates through the third fixed seat and the fourth fixed seat, a first moving block (44) which is arranged on the first support rod and is arranged in a first sliding groove, a second moving block (45) which is arranged on the second support rod and is arranged in a second sliding groove, a third rotating shaft (46) which is rotatably arranged on the first moving block and the second moving block, two connecting rods (47) with one end arranged on the second rotating shaft and the other end arranged on the third rotating shaft, and two fixed columns (48) which penetrate through the first moving block and the second moving block and are inserted into the fixed grooves; the anti-skid device (5) comprises a fifth rotating shaft (51) rotatably arranged at the bottom end of the support arm, anti-skid seats (52) arranged at two ends of the fifth rotating shaft and two sides of the support arm, half teeth (53) arranged on the anti-skid seats, a pinion (54) arranged on one side of the support arm and meshed with the half teeth, a first anti-skid sheet (55) fixedly arranged at the central part of the pinion, a second anti-skid sheet (56) symmetrically arranged on the support arm, a sixth rotating shaft (57) rotatably arranged on the support arm and penetrating through the first anti-skid sheet and the second anti-skid sheet on the fixed pinion simultaneously, and a locking part (58) arranged on the other side of the support arm; locking portion (58) are located the sixth pivot and are fixed sleeve (581) on the support arm including the cover, lie in sleeve and sixth pivot middle one end and fix pressure spring (582) in the sixth pivot, rotate and locate sixth pivot epaxial seventh pivot (583), fixed spanner (584) of locating seventh pivot intermediate position, fixed two special-shaped piece (585) of locating seventh pivot both ends, fixed buckle (586) of locating on the support arm and spanner complex.
2. A folding ladder as set forth in claim 1, wherein: the anti-toppling device (6) comprises an eighth rotating shaft (61) which is rotatably arranged on the first supporting rod, a stretching rod (62) which is fixedly arranged on the eighth rotating shaft, a fixed switch (63) which is arranged on the stretching rod, a ninth rotating shaft (64) which is arranged at the bottom end of the stretching rod, two anti-toppling feet (65) which are arranged at two ends of the ninth rotating shaft, and a connecting fixed rod (66) which is fixedly arranged on the two anti-toppling feet and is positioned between the two anti-toppling feet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361371.8A CN111535734A (en) | 2019-07-29 | 2019-07-29 | Prevent folding ladder that emptys |
| CN201910687046.8A CN110374490B (en) | 2019-07-29 | 2019-07-29 | Folding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910687046.8A CN110374490B (en) | 2019-07-29 | 2019-07-29 | Folding ladder |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361371.8A Division CN111535734A (en) | 2019-07-29 | 2019-07-29 | Prevent folding ladder that emptys |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110374490A CN110374490A (en) | 2019-10-25 |
| CN110374490B true CN110374490B (en) | 2020-06-09 |
Family
ID=68256681
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910687046.8A Active CN110374490B (en) | 2019-07-29 | 2019-07-29 | Folding ladder |
| CN202010361371.8A Withdrawn CN111535734A (en) | 2019-07-29 | 2019-07-29 | Prevent folding ladder that emptys |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361371.8A Withdrawn CN111535734A (en) | 2019-07-29 | 2019-07-29 | Prevent folding ladder that emptys |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110374490B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535734A (en) * | 2019-07-29 | 2020-08-14 | 浦江概念五金科技有限公司 | Prevent folding ladder that emptys |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677437A (en) * | 2020-06-18 | 2020-09-18 | 广东电网有限责任公司清远供电局 | Support arrangement for ladder |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202788592U (en) * | 2012-10-11 | 2013-03-13 | 庄雷 | Safety type extending ladder |
| CN203769633U (en) * | 2014-04-21 | 2014-08-13 | 佛山职业技术学院 | Multifunctional folding non-slip ladder |
| CN205532236U (en) * | 2016-03-10 | 2016-08-31 | 湖州中辰建设有限公司 | Can be applied to folding ladder of multiple occasion |
| CN206409176U (en) * | 2017-01-21 | 2017-08-15 | 马明智 | It is a kind of to prevent the high stability double ladder of rollover |
| CN107237598A (en) * | 2017-07-19 | 2017-10-10 | 温州奇思科技有限公司 | A kind of folding extension ladder |
| CN206928889U (en) * | 2017-05-17 | 2018-01-26 | 常州信息职业技术学院 | A kind of easy regulation ladder for interior decoration |
| CN207110954U (en) * | 2017-08-30 | 2018-03-16 | 兰州工业学院 | A kind of Multifunctional high-low bed cat ladder |
| CN109184541A (en) * | 2018-10-23 | 2019-01-11 | 张钰瑶 | With anti-skidding anti-side fall can danger warning high altitude operation ladder |
| CN208734264U (en) * | 2018-04-04 | 2019-04-12 | 韶关市鸿杰电力安装工程有限公司 | Electric power overhaul ladder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8424642B2 (en) * | 2009-07-27 | 2013-04-23 | James D. Lietz | Stabilizer kit for providing reinforcing support to a ladder |
| US20160177625A1 (en) * | 2014-12-18 | 2016-06-23 | Shih-Chieh Chang | Working ladder |
| CN110374490B (en) * | 2019-07-29 | 2020-06-09 | 浦江概念五金科技有限公司 | Folding ladder |
-
2019
- 2019-07-29 CN CN201910687046.8A patent/CN110374490B/en active Active
- 2019-07-29 CN CN202010361371.8A patent/CN111535734A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202788592U (en) * | 2012-10-11 | 2013-03-13 | 庄雷 | Safety type extending ladder |
| CN203769633U (en) * | 2014-04-21 | 2014-08-13 | 佛山职业技术学院 | Multifunctional folding non-slip ladder |
| CN205532236U (en) * | 2016-03-10 | 2016-08-31 | 湖州中辰建设有限公司 | Can be applied to folding ladder of multiple occasion |
| CN206409176U (en) * | 2017-01-21 | 2017-08-15 | 马明智 | It is a kind of to prevent the high stability double ladder of rollover |
| CN206928889U (en) * | 2017-05-17 | 2018-01-26 | 常州信息职业技术学院 | A kind of easy regulation ladder for interior decoration |
| CN107237598A (en) * | 2017-07-19 | 2017-10-10 | 温州奇思科技有限公司 | A kind of folding extension ladder |
| CN207110954U (en) * | 2017-08-30 | 2018-03-16 | 兰州工业学院 | A kind of Multifunctional high-low bed cat ladder |
| CN208734264U (en) * | 2018-04-04 | 2019-04-12 | 韶关市鸿杰电力安装工程有限公司 | Electric power overhaul ladder |
| CN109184541A (en) * | 2018-10-23 | 2019-01-11 | 张钰瑶 | With anti-skidding anti-side fall can danger warning high altitude operation ladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535734A (en) * | 2019-07-29 | 2020-08-14 | 浦江概念五金科技有限公司 | Prevent folding ladder that emptys |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111535734A (en) | 2020-08-14 |
| CN110374490A (en) | 2019-10-25 |
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Denomination of invention: A folding ladder Effective date of registration: 20210702 Granted publication date: 20200609 Pledgee: Zhejiang Pujiang Rural Commercial Bank Co.,Ltd. Pledgor: PUJIANG CONCEPT OF HARDWARE TECHNOLOGY Co.,Ltd. Registration number: Y2021330000772 |
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Date of cancellation: 20221213 Granted publication date: 20200609 Pledgee: Zhejiang Pujiang Rural Commercial Bank Co.,Ltd. Pledgor: PUJIANG CONCEPT OF HARDWARE TECHNOLOGY CO.,LTD. Registration number: Y2021330000772 |