CN108386124B - Safety ladder for large press - Google Patents
Safety ladder for large press Download PDFInfo
- Publication number
- CN108386124B CN108386124B CN201810289919.5A CN201810289919A CN108386124B CN 108386124 B CN108386124 B CN 108386124B CN 201810289919 A CN201810289919 A CN 201810289919A CN 108386124 B CN108386124 B CN 108386124B
- Authority
- CN
- China
- Prior art keywords
- cross rod
- rod
- touch
- pedal
- sliding block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000712 assembly Effects 0.000 claims abstract description 29
- 238000000429 assembly Methods 0.000 claims abstract description 29
- 230000007306 turnover Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 10
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
- E06C1/36—Ladders suspendable by hooks or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- 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
- 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
- E06C7/18—Devices for preventing persons from falling
- E06C7/181—Additional gripping devices, e.g. handrails
- E06C7/183—Additional gripping devices, e.g. handrails situated along the ladder
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to a safety ladder for a large press, which is characterized in that: the folding ladder comprises a mounting rod, a folding ladder and a touch supporting device, wherein the mounting rod is fixedly arranged at the top of the press; the folding ladder is detachably arranged on the mounting rod and comprises two grab bars, a plurality of groups of pedal assemblies and two groups of linkage assemblies, and the touch supporting device comprises a track plate, an adjusting platform, a limit sleeve, a touch sliding block, a reset spring and a limit switch. The detachable safety device has the advantages of safety, reliability, detachability and small occupied volume.
Description
Technical Field
The invention relates to the field of press equipment, in particular to a safety ladder for a press.
Background
At present, large-scale presses are all provided with ladders, so that workers can go up and down when the machine tool is overhauled conveniently, but the large-scale presses are often higher, the workers go to the tops of the presses, and other workers on the ground are often difficult to see. It is a dangerous thing if the press is started at this time. In addition, the ladder is always installed or leaned against the press, and vibration generated when the press is started can damage the ladder, so that the service life of the ladder is affected. And the maintenance is often one time in a period of time, and the ladder is in a non-use state when not being maintained, and the ladder occupies a large part of the volume of the press machine, so that the space allocation of a workshop is adversely affected.
Therefore, how to improve the existing ladder for the large-scale press machine so as to overcome the problems is a problem to be solved by the person skilled in the art.
Disclosure of Invention
The invention mainly aims to provide a safety ladder for a large-sized press, which is safe, reliable, detachable and small in occupied volume.
In order to achieve the above purpose, the invention adopts the following technical scheme: a safety ladder for a large press is characterized in that: comprises a mounting rod, a folding ladder and a touch supporting device;
the mounting rod is fixedly arranged at the top of the press;
the folding ladder is detachably arranged on the mounting rod and comprises two handrail rods, a plurality of groups of pedal assemblies and two groups of linkage assemblies, wherein the plurality of groups of pedal assemblies are equidistantly arranged on the inner sides of the handrail rods on two sides along the length direction of the handrail rods, and the linkage assemblies penetrate through the pedal assemblies to enable the plurality of groups of pedal assemblies to synchronously move; the two grab bars are arranged in parallel, the top of each grab bar is detachably arranged on the corresponding mounting bar, the top of each grab bar can slide along the corresponding mounting bar in the axial direction, and the bottom of each grab bar extends to the ground; the pedal assembly comprises a left cross rod, a right cross rod and pedals, wherein the left end of the left cross rod is hinged to the left handrail, the right end of the right cross rod is hinged to the right handrail, the right end of the left cross rod is hinged to the left end of the right cross rod, the contact surfaces of the left cross rod and the right cross rod are inclined planes, the inclined planes are mutually matched when the left cross rod and the right cross rod are collinear, the handrails on two sides are folded or unfolded through rotation of the left cross rod and the right cross rod, the pedals on two sides are respectively hinged to the left cross rod and the right cross rod, the pedals on two sides can be respectively turned along the circumferential directions of the left cross rod and the right cross rod, and when the left cross rod and the right cross rod are collinear, the pedals on two sides are parallel and are in contact with each other; the linkage assembly comprises a linkage rod, ball rollers and a ball seat, wherein the ball seat is fixedly arranged on the pedals, the ball rollers are fixedly arranged on the linkage rod at equal intervals, a plurality of ball rollers are movably arranged in the ball seats in sequence, the linkage rod and the grab rail are always parallel, two groups of linkage assemblies correspondingly penetrate through the pedals on two sides, and the linkage assemblies enable the pedals on the same side of different groups to be always parallel; it is worth mentioning that the footboard rotates on the horizontal pole, and the horizontal pole rotates on the grab rail again, and the footboard has two movable dimensions promptly, has consequently set up bulb roller and bulb seat between gangbar and the footboard, makes it can link in two dimensions, avoids the card to die and the linkage is unreliable. The left cross bar and the right cross bar are mutually matched inclined planes, so that the two bars cannot continuously rotate downwards.
The touch supporting device comprises a track plate, an adjusting platform, a limit sleeve, a touch sliding block, a reset spring and a limit switch, wherein the track plate is fixedly arranged on the side surface of the press machine and is positioned below the mounting rod, the adjusting platform is arranged on the track plate in a sliding manner along the vertical direction and can be fixed at any position of the track plate, the limit sleeve is fixedly arranged on the adjusting platform, the touch sliding block is arranged in the limit sleeve in a sliding manner along the vertical direction, the reset spring is arranged between the limit sleeve and the touch sliding block and forces the touch sliding block to slide upwards, the limit switch is arranged below the limit sleeve, and the touch sliding block touches the limit switch when sliding downwards so as to cut off the press machine; and when the folding ladder is completely unfolded and mounted on the mounting rod, the touch supporting device is positioned below one group of pedal assemblies, and the pedal presses the touch sliding block to enable the touch sliding block to slide downwards, and meanwhile, the touch supporting device supports the pedal to enable the pedal not to turn over any more.
As an improvement, the length of the mounting rod is greater than the maximum width of the folding ladder, and the mounting rod is provided with a rubber strip which limits the transverse sliding of the folding ladder. The rubber strip is bound on the mounting rod and is tightly attached to the grab rail, so that the folding ladder cannot slide to the right, and the stability of the folding ladder is ensured. In addition, when the length of installation pole is enough, can place a plurality of folding ladders, a plurality of staff of being convenient for go up and down.
Preferably, the section of the mounting rod is circular, the top of the grab bar is provided with a circular arc-shaped hook, and the grab bar is arranged on the mounting rod through the circular arc-shaped hook. The circular installation rod and the circular arc-shaped hook enable the installation of the folding ladder to be very convenient, and the installation rod is only required to be hung on the ground.
Preferably, the track plate is provided with a plurality of bolt holes, the adjusting platform extends to two sides, and the adjusting platform is inserted into the bolt holes through bolts to be fixed at different positions of the track plate. The installation and the fixation are very convenient.
The working flow is as follows: when the folding ladder is used, the folding ladder is hung on the installation, then the grab rail on one side is close to the end part of the installation rod, the grab rail on the other side is pushed open, so that the folding ladder is unfolded, and meanwhile, the pedal is turned downwards. The position of the adjusting platform is required to be adjusted during the first installation, the adjusting platform slides on the track plate to find a proper position, so that the touch sliding block is just pressed to the bottom and touches the limit switch when the pedal is laid down, and then the bolt is inserted into the bolt hole to fix the adjusting platform. When the pedal is put flat, the return spring is compressed, and because the resistance (including gravity) of the folding ladder is larger than the elastic force of the return spring, the limit switch cannot actively reset after the folding ladder is installed, and an operator can climb up the press machine through the folding ladder, so that the folding ladder is safe to operate. When the folding ladder is folded or taken away, the limit switch is reset, and the press can be normally operated.
Compared with the prior art, the invention has the following advantages:
1. the folding ladder can be directly folded and taken down for storage, so that the whole volume of the press machine is reduced, and the folding ladder can be placed on other press machines, thereby achieving multiple purposes. In a certain range, the folding ladder can use machine tools with different heights, and the pedal can be horizontal or at a proper angle when the folding ladder is matched with a new press machine by finely adjusting the height of the adjusting platform, so that the folding ladder is suitable for trampling, and meanwhile, the touch sliding block can be pressed.
2. The touch support device has two functions: one is to support the pedal assembly so that it can be in a horizontal position; the other is to touch the limit switch, so that the press is in a power-off state after the unfolded folding ladder is placed, and the safety of workers is ensured.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention fully extended;
FIG. 2 is a schematic perspective view of a preferred embodiment of the present invention when fully collapsed;
FIG. 3 is a schematic perspective view of a preferred embodiment of the present invention partially deployed;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A in accordance with a preferred embodiment of the present invention;
FIG. 5 is a partially enlarged view of B in FIG. 3 according to a preferred embodiment of the present invention;
FIG. 6 is an enlarged partial view at C in FIG. 3 in accordance with a preferred embodiment of the present invention;
FIG. 7 is a partially enlarged view of the portion D of FIG. 3 in accordance with a preferred embodiment of the present invention;
FIG. 8 is an enlarged partial view at E in FIG. 3 in accordance with a preferred embodiment of the present invention;
FIGS. 9 and 10 are schematic views of the connection of the left and right rails in accordance with a preferred embodiment of the present invention;
FIGS. 11 and 12 are half cross-sectional views of a linkage assembly in accordance with a preferred embodiment of the present invention;
FIG. 13 is a half cross-sectional view of a touch support device in accordance with a preferred embodiment of the present invention;
figure 14 is a block diagram of the folding ladder acting on the touch support device in accordance with a preferred embodiment of the invention.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
As shown in fig. 1 to 14, a preferred embodiment of the present invention comprises a mounting bar 1, a folding ladder 2 and a touch support device 3, in particular:
the mounting bar 1 is fixedly provided on top of the press 100.
The folding ladder 2 is detachably arranged on the mounting rod 1, the folding ladder 2 comprises two grab bars 21, a plurality of groups of pedal assemblies 22 and two groups of linkage assemblies 23, the plurality of groups of pedal assemblies 22 are equidistantly arranged on the inner sides of the grab bars 21 on two sides along the length direction of the grab bars 21, and the linkage assemblies 23 penetrate through the pedal assemblies 22 to enable the plurality of groups of pedal assemblies 22 to synchronously move; the two grab bars 21 are arranged in parallel, the top of the grab bar 21 is detachably arranged on the mounting bar 1, the top of the grab bar 21 can axially slide along the mounting bar 1, and the bottom of the grab bar 21 extends to the ground. The pedal assembly 22 comprises a left cross bar 221, a right cross bar 222 and pedals 223, wherein the left end of the left cross bar 221 is hinged to the left handrail bar 21, the right end of the right cross bar 222 is hinged to the right handrail bar 21, the right end of the left cross bar 221 is hinged to the left end of the right cross bar 222, the contact surface of the left cross bar 221 and the right cross bar 222 is an inclined surface, the inclined surfaces are mutually matched when the left cross bar 221 and the right cross bar 222 are collinear, the handrail bars 21 on the two sides are folded or unfolded through the rotation of the left cross bar 221 and the right cross bar 222, the pedals 223 on the two sides are respectively hinged to the left cross bar 221 and the right cross bar 222, the pedals 223 on the two sides can be respectively turned along the circumferential direction of the left cross bar 221 and the right cross bar 222, and when the left cross bar 221 and the right cross bar 222 are collinear, the pedals 223 on the two sides are parallel and abutted against each other; the linkage assembly 23 comprises a linkage rod 231, ball rollers 232 and ball seats 233, the ball seats 233 are fixedly arranged on pedals 223, the ball rollers 232 are fixedly arranged on the linkage rod 231 at equal intervals, a plurality of ball rollers 232 are movably arranged in the ball seats 233 in sequence, the linkage rod 231 and the grab rail 21 are always parallel, the pedals 223 on two sides correspondingly penetrate through the two groups of linkage assemblies 23, and the linkage assemblies 23 enable the pedals 223 on the same side of different groups to be always parallel.
The touch supporting device 3 comprises a track plate 31, an adjusting platform 32, a limit sleeve 33, a touch sliding block 34, a reset spring 35 and a limit switch 36, wherein the track plate 31 is fixedly arranged on the side surface of the press 100 and is positioned below the mounting rod 1, the adjusting platform 32 is arranged on the track plate 31 in a sliding manner in the vertical direction and can be fixed at any position of the track plate 31, the limit sleeve 33 is fixedly arranged on the adjusting platform 32, the touch sliding block 34 is arranged in the limit sleeve 33 in the sliding manner in the vertical direction, the reset spring 35 is arranged between the limit sleeve 33 and the touch sliding block 34, the touch sliding block 34 is forced to slide upwards, the limit switch 36 is arranged below the limit sleeve 33, and the limit switch 36 is touched when the touch sliding block 34 slides downwards, so that the press 100 is powered off; and when the folding ladder 2 is fully unfolded and mounted on the mounting rod 1, the touch supporting device 3 is positioned below one group of pedal assemblies 22, and the pedal 223 presses the touch sliding block 34, so that the touch sliding block 34 slides downwards, and meanwhile, the touch supporting device 3 supports the pedal 223, so that the pedal 223 does not overturn any more.
As the optimal design, the length of installation pole 1 is greater than the maximum width of folding ladder 2, is provided with rubber strip 11 on the installation pole 1, and the lateral sliding of folding ladder 2 is restricted to rubber strip 11. The section of the mounting rod 1 is circular, the top of the grab bar 21 is provided with a circular arc-shaped hook 211, and the grab bar 21 is arranged on the mounting rod through the circular arc-shaped hook 211. The track plate 31 is provided with a plurality of bolt holes 311, the adjusting platform 32 extends to two sides, and the adjusting platform 32 is fixed at different positions of the track plate 31 through inserting bolts into the bolt holes 311.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A safety ladder for a large press is characterized in that: comprises a mounting rod, a folding ladder and a touch supporting device;
the mounting rod is fixedly arranged at the top of the press;
the folding ladder is detachably arranged on the mounting rod and comprises two handrail rods, a plurality of groups of pedal assemblies and two groups of linkage assemblies, wherein the plurality of groups of pedal assemblies are equidistantly arranged on the inner sides of the handrail rods on two sides along the length direction of the handrail rods, and the linkage assemblies penetrate through the pedal assemblies to enable the plurality of groups of pedal assemblies to synchronously move; the two grab bars are arranged in parallel, the top of each grab bar is detachably arranged on the corresponding mounting bar, the top of each grab bar can slide along the corresponding mounting bar in the axial direction, and the bottom of each grab bar extends to the ground; the pedal assembly comprises a left cross rod, a right cross rod and pedals, wherein the left end of the left cross rod is hinged to the left handrail, the right end of the right cross rod is hinged to the right handrail, the right end of the left cross rod is hinged to the left end of the right cross rod, the contact surfaces of the left cross rod and the right cross rod are inclined planes, the inclined planes are mutually matched when the left cross rod and the right cross rod are collinear, the handrails on two sides are folded or unfolded through rotation of the left cross rod and the right cross rod, the pedals on two sides are respectively hinged to the left cross rod and the right cross rod, the pedals on two sides can be respectively turned along the circumferential directions of the left cross rod and the right cross rod, and when the left cross rod and the right cross rod are collinear, the pedals on two sides are parallel and are in contact with each other; the linkage assembly comprises a linkage rod, ball rollers and a ball seat, wherein the ball seat is fixedly arranged on the pedals, the ball rollers are fixedly arranged on the linkage rod at equal intervals, a plurality of ball rollers are movably arranged in the ball seats in sequence, the linkage rod and the grab rail are always parallel, two groups of linkage assemblies correspondingly penetrate through the pedals on two sides, and the linkage assemblies enable the pedals on the same side of different groups to be always parallel;
the touch supporting device comprises a track plate, an adjusting platform, a limit sleeve, a touch sliding block, a reset spring and a limit switch, wherein the track plate is fixedly arranged on the side surface of the press machine and is positioned below the mounting rod, the adjusting platform is arranged on the track plate in a sliding manner along the vertical direction and can be fixed at any position of the track plate, the limit sleeve is fixedly arranged on the adjusting platform, the touch sliding block is arranged in the limit sleeve in a sliding manner along the vertical direction, the reset spring is arranged between the limit sleeve and the touch sliding block and forces the touch sliding block to slide upwards, the limit switch is arranged below the limit sleeve, and the touch sliding block touches the limit switch when sliding downwards so as to cut off the press machine; when the folding ladder is completely unfolded and mounted on the mounting rod, the touch supporting device is positioned below one group of pedal assemblies, the pedal presses the touch sliding block to enable the touch sliding block to slide downwards, and meanwhile, the touch supporting device supports the pedal to enable the pedal not to turn over any more;
the length of the mounting rod is larger than the maximum width of the folding ladder, and a rubber strip is arranged on the mounting rod and used for limiting the transverse sliding of the folding ladder;
the track plate is provided with a plurality of bolt holes, the adjusting platform extends to two sides, and the adjusting platform is inserted into the bolt holes through bolts to be fixed at different positions of the track plate.
2. A safety ladder for a large press according to claim 1, characterized in that: the section of the mounting rod is circular, the top of the grab bar is provided with a circular arc-shaped hook, and the grab bar is arranged on the mounting rod through the circular arc-shaped hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289919.5A CN108386124B (en) | 2018-04-03 | 2018-04-03 | Safety ladder for large press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289919.5A CN108386124B (en) | 2018-04-03 | 2018-04-03 | Safety ladder for large press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386124A CN108386124A (en) | 2018-08-10 |
| CN108386124B true CN108386124B (en) | 2023-11-21 |
Family
ID=63073287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289919.5A Active CN108386124B (en) | 2018-04-03 | 2018-04-03 | Safety ladder for large press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386124B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185378A (en) * | 2019-05-18 | 2019-08-30 | 国网山东省电力公司诸城市供电公司 | A kind of folding ladder stand |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5158151A (en) * | 1992-01-21 | 1992-10-27 | Chang Wan Li | Bidirectionally foldable step ladder |
| CN2417282Y (en) * | 2000-04-07 | 2001-01-31 | 方大集团股份有限公司 | Two direction folding ladder |
| CN2498317Y (en) * | 2001-09-19 | 2002-07-03 | 江西洪都航空工业集团有限责任公司 | Folding ladder |
| JP2007186974A (en) * | 2005-12-14 | 2007-07-26 | Moriyama Tekko:Kk | Folding stepladder |
| ES2377615A1 (en) * | 2010-04-15 | 2012-03-29 | Ajm Santos, S.L.L. | Folding stepladder |
| CN202531008U (en) * | 2012-03-12 | 2012-11-14 | 广东机电职业技术学院 | Multifunctional emergency household folding ladder |
| CN206386079U (en) * | 2016-08-29 | 2017-08-08 | 南通锻压设备股份有限公司 | Cat ladder safety guard with auto-lock function |
| CN207048669U (en) * | 2017-05-15 | 2018-02-27 | 福建省盛荣生态花卉研究院有限责任公司 | A kind of park maintenance tool lift |
| CN208040289U (en) * | 2018-04-03 | 2018-11-02 | 浙江易锻精密机械有限公司 | A kind of large pressing machine emergency staircase |
-
2018
- 2018-04-03 CN CN201810289919.5A patent/CN108386124B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5158151A (en) * | 1992-01-21 | 1992-10-27 | Chang Wan Li | Bidirectionally foldable step ladder |
| CN2417282Y (en) * | 2000-04-07 | 2001-01-31 | 方大集团股份有限公司 | Two direction folding ladder |
| CN2498317Y (en) * | 2001-09-19 | 2002-07-03 | 江西洪都航空工业集团有限责任公司 | Folding ladder |
| JP2007186974A (en) * | 2005-12-14 | 2007-07-26 | Moriyama Tekko:Kk | Folding stepladder |
| ES2377615A1 (en) * | 2010-04-15 | 2012-03-29 | Ajm Santos, S.L.L. | Folding stepladder |
| CN202531008U (en) * | 2012-03-12 | 2012-11-14 | 广东机电职业技术学院 | Multifunctional emergency household folding ladder |
| CN206386079U (en) * | 2016-08-29 | 2017-08-08 | 南通锻压设备股份有限公司 | Cat ladder safety guard with auto-lock function |
| CN207048669U (en) * | 2017-05-15 | 2018-02-27 | 福建省盛荣生态花卉研究院有限责任公司 | A kind of park maintenance tool lift |
| CN208040289U (en) * | 2018-04-03 | 2018-11-02 | 浙江易锻精密机械有限公司 | A kind of large pressing machine emergency staircase |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386124A (en) | 2018-08-10 |
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