CN115450553B - Ladder anti-shaking device and ladder - Google Patents
Ladder anti-shaking device and ladder Download PDFInfo
- Publication number
- CN115450553B CN115450553B CN202211189457.2A CN202211189457A CN115450553B CN 115450553 B CN115450553 B CN 115450553B CN 202211189457 A CN202211189457 A CN 202211189457A CN 115450553 B CN115450553 B CN 115450553B
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- Prior art keywords
- ladder
- connecting part
- adjusting
- limiting
- supporting
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- 230000008093 supporting effect Effects 0.000 claims abstract description 67
- 230000002265 prevention Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000009194 climbing Effects 0.000 description 6
- 230000001174 ascending effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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
- E06C1/38—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
- E06C1/397—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 characterised by having wheels, rollers, or runners
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to a ladder anti-sway device which comprises a connecting part and a supporting part which is arranged in a crossing way with the connecting part, wherein the connecting part is arranged on the side surface of a ladder, and the supporting part is supported on the ground, so that the condition that the ladder falls down in the using process can be reduced, and the stability and the using safety of the ladder are improved. The invention also discloses a ladder, which comprises the two ladder anti-shake devices which are respectively arranged on the two handrails of the ladder. The ladder anti-sway device disclosed by the invention has a three-level adjusting structure from coarse adjustment to fine adjustment so as to adapt to ladders with different heights and floors in various states. The telescopic connecting part is used for synchronously stretching and retracting aiming at core assembly platforms with different heights by matching with a ladder; the adjusting part can be used for adjusting the height of the supporting part so as to enable the supporting part to be stably supported on the ground; the fine adjustment bolt is used for adjusting the contact area between the supporting surface of the supporting leg and the ground, and improving the supporting effect of the supporting part.
Description
Technical Field
The invention relates to the technical field of climbing operation equipment, in particular to a ladder anti-shaking device and a ladder.
Background
The sand mould core assembly is printed to 3D, the assembling box is completed on a core assembly platform with the height of more than 1 meter, a climbing ladder is arranged on one side of the core assembly platform for operators to go up and down the core assembly platform, and each group of sand cores of the operators need to go up and down for a plurality of times. In the use of ladder of ascending a height, often can appear when operating personnel climbs, and the eccentric load that exerts on the ladder makes ladder of ascending a height and people's risk of empting, and then makes operating personnel injured in the operation of ascending a height. In the prior art, one person usually holds up the climbing ladder, and the other person performs climbing and core assembling operation, so that the production efficiency is seriously affected.
Disclosure of Invention
In view of the above, it is necessary to provide a ladder sway prevention device that prevents a ladder from swaying or swaying during a climbing operation, thereby improving the stability and the safety in use of the ladder.
In order to solve the problems, the invention adopts the following technical scheme:
a ladder anti-sway device is disclosed, the ladder comprising a pair of spaced apart handrails and a plurality of rungs extending between and coupled to the spaced apart handrails; the ladder also comprises a vertical rod for supporting the ladder and a transverse rod arranged at the bottom of the ladder; the anti-shaking device comprises a connecting part and a supporting part which is arranged in a crossing way with the connecting part, one end of the connecting part is connected to the handrail, the other end of the connecting part is connected to the cross rod, and the connecting part is arranged in parallel with the vertical rod; one end of the supporting part is connected to the connecting part, and the other end of the supporting part is supported on the ground.
In one embodiment, the anti-shake device further comprises an adjusting part, the adjusting part comprises an adjusting sleeve and a first limiting pin, the adjusting sleeve is sleeved on the connecting part, and the supporting part is fixedly connected to the outer side of the adjusting sleeve; the adjusting sleeve is provided with a first limiting hole, and the connecting part is provided with equidistant limiting grooves; the first limiting pins penetrate through the first limiting holes and are inserted into different limiting grooves to be limited and fixed.
In one embodiment, the connecting part comprises an inner sleeve rod and an outer sleeve rod, the inner sleeve rod is provided with equidistant second limiting holes, the outer sleeve rod is provided with limiting bolts or second limiting pins, and the outer sleeve rod is inserted into different limiting holes through the second limiting bolts or the second limiting pins to be limited and fixed.
In one embodiment, the supporting portion comprises a first supporting section, a second supporting section and supporting legs, one end of the first supporting section is connected to the middle of the connecting portion, the other end of the first supporting section is connected with the second supporting section, and one end, deviating from the first supporting section, of the second supporting section is provided with the supporting legs.
In one embodiment, the first support section has a larger angle with the connecting portion than the second support section.
In one embodiment, the included angle between the first support section and the connecting part is 30-60 degrees; the included angle between the second support section and the connecting part is 0-20 degrees.
In one embodiment, the first end of the connecting rod is rotatably connected to the compression bar.
In one embodiment, the distance between the two ends of the pressing rod and the connecting part of the connecting rod is not equal.
In one embodiment, the anti-shake device further comprises a fine adjustment bolt, a threaded through hole matched with the fine adjustment bolt is formed in the supporting leg, and the fine adjustment bolt passes through the threaded through hole to be abutted to the ground so as to adjust the contact area between the supporting surface of the supporting leg and the ground.
In one embodiment, the support surface of the support leg is provided with a non-slip mat.
In one embodiment, the connection is connected between the handrail top and 1/3 the handrail length from the top.
In a second aspect, the embodiment of the invention further discloses a ladder, which comprises any ladder anti-shake device, wherein the number of the ladder anti-shake devices is two, and the ladder anti-shake devices are respectively arranged on two handrails.
The technical scheme adopted by the invention can achieve the following beneficial effects:
according to the ladder anti-sway device disclosed by the invention, the supporting part is supported on the ground, so that the condition that the ladder is inclined in the use process can be reduced, and the stability and the use safety of the ladder are improved. The ladder anti-sway device disclosed by the invention has a three-level adjusting structure, and is capable of adapting to ladders with different heights and various uneven ground conditions from coarse adjustment to fine adjustment. The telescopic connecting part is used for synchronously stretching and retracting aiming at core assembly platforms with different heights by matching with a ladder; the adjusting part can be used for adjusting the height of the supporting part so as to enable the supporting part to be stably supported on the ground; the fine adjustment bolt is used for adjusting the contact area between the supporting surface of the supporting leg and the ground, and improving the supporting effect of the supporting part.
Drawings
Fig. 1 is a schematic view of a ladder anti-sway device according to an embodiment of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1;
fig. 3 is an enlarged view of a portion B of fig. 1.
Reference numerals illustrate:
110-armrests, 120-steps, 130-rollers, 140-vertical rods and 150-cross rods;
200-supporting parts, 210-first supporting sections, 220-second supporting sections, 230-supporting legs, 240-fine tuning bolts and 250-anti-skid pads;
300-connecting parts, 310-limit grooves;
410-adjusting sleeve, 411-first limiting hole, 420-first limiting pin.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The present embodiment discloses a ladder anti-sloshing apparatus, as shown in fig. 1, which may include a pair of spaced apart handrails 110, a plurality of rungs 120, a vertical bar 140, and a rail 150, the plurality of rungs 120 extending between the spaced apart handrails 110 and being coupled to the spaced apart handrails 110. Two sides of the highest stair 120 are respectively provided with a vertical rod 140 for supporting the ladder; and a cross bar 150 is disposed between the bottom of each vertical bar 140 and the lowest step 120. The bottom of the ladder is also provided with four rollers 130 with braking devices, the ladder is pushed to one side of each core assembly platform, and the braking wrenches of the rollers 130 are pulled to adjust the height of the ladder to be the same as that of the core assembly platform and are butted with the core assembly platform. The disclosed ladder anti-sway device is arranged on the ladder, and can comprise a connecting part 300 and a supporting part 200, wherein the connecting part 300 and the vertical rod 140 are arranged on the ladder in parallel, the supporting part 200 and the connecting part 300 are arranged outside in a crossing way, one end of the supporting part is connected to the connecting part 300, and the other end of the supporting part is supported on the ground, so that the stability of the ladder is improved, the situation that the ladder falls down in the use process is prevented, and the use safety of the ladder is improved.
Specifically, the first end of the connection part 300 may be fastened to the cross bar 150 by a bolt, and the second end of the connection part 300 may be fastened to the armrest 110 by a bolt. Preferably, the second end may be connected between the top of the armrest 110 and 1/3 of the armrest length from the top thereof.
In the disclosed embodiment, the ladder anti-sloshing apparatus may include a three-stage adjustment structure for adjusting the length of the connection part 300 to adapt to the telescopic height of the telescopic ladder. The second stage adjusting mechanism is used to adjust the direction and height of the supporting portion 200 to adapt to the length of the connecting portion 300, uneven ground, etc. The third-stage adjusting mechanism is a fine adjusting mechanism for fine adjusting the contact area between the supporting portion 200 and the ground.
The telescopic connection part 300 may be used as a first-stage adjusting mechanism, and specifically, the connection part 300 may include an inner sleeve rod and an outer sleeve rod (not shown in the figure), the inner sleeve rod is provided with equidistant second limiting holes, the outer sleeve rod is provided with limiting bolts or second limiting pins, and the limiting bolts or the second limiting pins are inserted into different second limiting holes to perform limiting fixation.
The second stage adjusting mechanism may be an adjusting portion, as shown in fig. 2, where the adjusting portion includes an adjusting sleeve 410 and a first limiting pin 420, the adjusting sleeve 410 is sleeved on the connecting portion 300, and a supporting portion 200 is fixedly connected to the outer side of the adjusting sleeve 410. The adjusting sleeve 410 is also provided with a first limiting hole 411, the connecting part 300 is provided with equidistant limiting grooves 310, and the first limiting pins 420 penetrate through the first limiting holes 411 and are inserted into different limiting grooves 310 to be limited and fixed. Preferably, two first limiting holes 411 are formed in the adjusting sleeve 410, the two first limiting holes 411 are located on the same cross section of the adjusting sleeve 410, the first limiting pin 420 penetrates through one of the first limiting holes 411 to be inserted into different limiting grooves 310 and then penetrates out of the other first limiting hole 411, and stability of limiting and fixing of the first limiting pin 420 is increased.
The third-stage adjusting mechanism is disposed on the supporting leg 230 at the bottom of the supporting portion 200, as shown in fig. 3, specifically, a fine tuning bolt 240 is disposed on the supporting leg 230, and a threaded through hole matched with the fine tuning bolt 240 is disposed on the supporting leg 230, and the fine tuning bolt 240 can pass through the threaded through hole to be supported on the ground, so as to adjust the angle of the supporting surface of the supporting leg 230, and further adjust the contact area between the supporting leg 230 and the ground, so as to adapt to various uneven ground conditions. Preferably, the fine tuning bolt 240 may be provided in plurality.
Further, a non-slip mat 250 may be provided on the support surface of the support foot 230 to increase the friction coefficient between the support foot 230 and the ground. Preferably, cleat 250 is an elastomeric material.
In the embodiment disclosed in the present invention, the supporting portion 200 may further include a first supporting section 210 and a second supporting section 220, where the first supporting section 210, the second supporting section 220 and the supporting leg 230 are sequentially connected from top to bottom, and one end of the first supporting section 210 facing away from the second supporting section 220 is connected to the middle portion of the connecting portion 300. The included angle between the first support section 210 and the connecting portion 300 may be greater than the included angle between the second support section 220 and the connecting portion 300, so that the support effect of the support portion 200 on the ladder is better.
Preferably, the included angle between the first support section 210 and the connecting portion 300 is 30 ° to 60 °; the second support section 220 has an angle of 0 ° to 20 ° with the connection portion 300. Optimally, the first support section 210 is at an angle of 55 ° to the connection 300; the second support section 220 has an angle of 5 ° to 10 ° with the connection portion 300.
The embodiment of the invention also discloses a ladder, which comprises any ladder anti-shake device, wherein the ladder anti-shake device can be arranged on two sides of the ladder respectively, when the ladder moves, the supporting part of the anti-shake device can be lifted up or rotated to be retracted to the inner side of the ladder through the second adjusting mechanism, and before climbing operation, the supporting part is supported on the ground on the outer side of the ladder.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. A ladder anti-sway device, the ladder comprising a pair of spaced apart handrails and a plurality of rungs extending between and coupled to the spaced apart handrails; the ladder also comprises a vertical rod for supporting the ladder and a transverse rod arranged at the bottom of the ladder; the anti-shake device is characterized by comprising a connecting part and a supporting part which is arranged in a crossing way with the connecting part, wherein one end of the connecting part is connected to the armrest, the other end of the connecting part is connected to the cross rod, and the connecting part is arranged in parallel with the vertical rod; one end of the supporting part is connected to the connecting part, and the other end of the supporting part is supported on the ground;
the ladder anti-shake device comprises a three-stage adjusting structure, wherein the first-stage adjusting structure is used for adjusting the length of the connecting part, the second-stage adjusting mechanism is used for adjusting the direction and the height of the supporting part, and the third-stage adjusting mechanism is used for finely adjusting the contact area between the supporting part and the ground;
the second-stage adjusting mechanism is an adjusting part, the adjusting part comprises an adjusting sleeve and a first limiting pin, the adjusting sleeve is sleeved on the connecting part, and the supporting part is fixedly connected to the outer side of the adjusting sleeve; the adjusting sleeve is provided with a first limiting hole, and the connecting part is provided with equidistant limiting grooves; the first limiting pins penetrate through the first limiting holes and are inserted into different limiting grooves to be limited and fixed;
the support part comprises a first support section, a second support section and support legs, one end of the first support section is connected to the connecting part, the other end of the first support section is connected with the second support section, and one end, deviating from the first support section, of the second support section is provided with the support legs;
the included angle between the first support section and the connecting part is larger than the included angle between the second support section and the connecting part.
2. The ladder sway prevention device according to claim 1, wherein the connection portion comprises an inner sleeve rod and an outer sleeve rod, the inner sleeve rod is provided with equidistant second limiting holes, the outer sleeve rod is provided with limiting bolts or second limiting pins, and the limiting bolts or the second limiting pins are inserted into different second limiting holes to conduct limiting fixation.
3. The ladder anti-sway device of claim 1, wherein the first support section comprises an angle of 30 ° to 60 ° with the connection portion; the included angle between the second support section and the connecting part is 0-20 degrees.
4. The anti-sway device of the ladder of claim 1 further comprising a fine tuning bolt, wherein the support leg is provided with a threaded through hole matched with the fine tuning bolt, and the fine tuning bolt is supported on the ground through the threaded through hole for adjusting the contact area of the support surface of the support leg with the ground.
5. The ladder anti-sway device of claim 1, characterized in that the support surface of the support foot is provided with an anti-slip pad.
6. The ladder anti-sway device of claim 1, characterized in that the connection is connected between the top of the rail and 1/3 the length of the rail from the top.
7. A ladder comprising a ladder anti-sway device according to any one of claims 1 to 6, the number of ladder anti-sway devices being two, each being provided on two handrails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211189457.2A CN115450553B (en) | 2022-09-29 | 2022-09-29 | Ladder anti-shaking device and ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211189457.2A CN115450553B (en) | 2022-09-29 | 2022-09-29 | Ladder anti-shaking device and ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115450553A CN115450553A (en) | 2022-12-09 |
| CN115450553B true CN115450553B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211189457.2A Active CN115450553B (en) | 2022-09-29 | 2022-09-29 | Ladder anti-shaking device and ladder |
Country Status (1)
| Country | Link |
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| CN (1) | CN115450553B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899849A (en) * | 1988-12-05 | 1990-02-13 | A. C. Innovations, Inc. | Ladder stabilizer |
| CN102341558A (en) * | 2009-03-03 | 2012-02-01 | 伟英企业有限公司 | Adjustable ladders and related methods |
| CN105322461A (en) * | 2015-10-28 | 2016-02-10 | 国家电网公司 | Electric power overhauling ladder convenient to use |
| CN205977076U (en) * | 2016-08-29 | 2017-02-22 | 惠州市嘉程驾校有限公司 | Ladder |
| CN109138826A (en) * | 2018-11-13 | 2019-01-04 | 李月辉 | A kind of anti-shaking device and ladder |
| CN214787139U (en) * | 2021-04-07 | 2021-11-19 | 永康市伟格工贸有限公司 | Stable ladder that supports |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9482053B2 (en) * | 2012-11-14 | 2016-11-01 | William D. Polzen | Ladder safety device and method of attachment |
| US20200087985A1 (en) * | 2018-09-17 | 2020-03-19 | William D. Polzen | Ladder safety device improvements |
-
2022
- 2022-09-29 CN CN202211189457.2A patent/CN115450553B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899849A (en) * | 1988-12-05 | 1990-02-13 | A. C. Innovations, Inc. | Ladder stabilizer |
| CN102341558A (en) * | 2009-03-03 | 2012-02-01 | 伟英企业有限公司 | Adjustable ladders and related methods |
| CN105322461A (en) * | 2015-10-28 | 2016-02-10 | 国家电网公司 | Electric power overhauling ladder convenient to use |
| CN205977076U (en) * | 2016-08-29 | 2017-02-22 | 惠州市嘉程驾校有限公司 | Ladder |
| CN109138826A (en) * | 2018-11-13 | 2019-01-04 | 李月辉 | A kind of anti-shaking device and ladder |
| CN214787139U (en) * | 2021-04-07 | 2021-11-19 | 永康市伟格工贸有限公司 | Stable ladder that supports |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115450553A (en) | 2022-12-09 |
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