CN107013158A - The practical safe three-leg ladder in orchard - Google Patents
The practical safe three-leg ladder in orchard Download PDFInfo
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- CN107013158A CN107013158A CN201710311516.1A CN201710311516A CN107013158A CN 107013158 A CN107013158 A CN 107013158A CN 201710311516 A CN201710311516 A CN 201710311516A CN 107013158 A CN107013158 A CN 107013158A
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- ladder
- leg
- foot
- tread
- pedal
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- 239000002420 orchard Substances 0.000 title claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 30
- 238000010168 coupling process Methods 0.000 claims abstract description 30
- 238000005859 coupling reaction Methods 0.000 claims abstract description 30
- 238000013519 translation Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000000007 visual effect 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
- E06C1/14—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
-
- 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
- E06C1/382—Tripod ladders
-
- 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
- E06C1/39—Ladders having platforms; Ladders changeable into platforms
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/003—Indicating devices, e.g. user warnings or inclinators
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/16—Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The practical safe three-leg ladder in orchard, the three-legged ladder includes pedal ladder leg, supporting ladder leg, tramples tread and foot of ladder pad；The upper end of pedal ladder leg and supporting ladder leg links together in which can adjust with trampling tread angle, the lower end of pedal ladder leg and supporting ladder leg all padded by foot of ladder with orthogonal shaft coupling, foot of ladder turn now to, upper and lower translation connection；Two pedal ladder legs and a supporting ladder leg are collectively forming the triangular support configurations relation to trampling tread.The present invention is simple for structure, reliable, reasonable, multiple functional, not only remain the original effect of simple three-leg ladder, characteristic, and increased newly trample tread maintain an equal level adjustment, supporting ladder leg rotates constraint, foot of ladder pad gross area contacts to earth and informed with the warning that may topple, so as to by fundamentally having taken precautions against the personal injury event generation because of the initiation that slides, topples, different crowd safe handling limitation is significantly improved, various geographical environment adaptability are additionally greatly expanded.
Description
Technical field
The present invention relates to a kind of practical safe three-leg ladder in orchard, it both can be applied to orchard, can also apply to it is indoor or
Other common environmentals are ascended a height, climbed.
Background technology
At present, be widely used in all kinds of orchard environment ascend a height, the simple three-leg ladder hidden danger climbed it is numerous, especially prominent is
Personal safety shortage for user is effectively ensured.Different age group, sex and the people of social experience are in the normal both hands in orchard
Operation simultaneously, and needed according to actual conditions to change self-position, posture frequently, once occur that center of gravity is unbalance to cause ladder to topple
Easily there is actual bodily harm.Operator often stands on ladder top, periphery difficulty and looked for by visitors such as the soft skiddings of object and soil
Reality is seen, ladder event of toppling more is facilitated and frequently changes, branch is dense, random growth easily causes ladder and toppled process again
It can not effectively hide and aggravate extent of injury.If using simple three-leg ladder instead other occasions, with the mutual not phase of terraced leg folding angle
Together, first tread is trampled with pedal ladder leg because being fixed angle welding in top, cannot then maintain an equal level according to needing to be adjusted, and two
Then terraced leg low side is only welded with angle bar so that is generally contacted to earth with point and is more easy to sliding occur, topples.Lifting platform, double ladder and pull ladder
Deng because of many restrictions such as cost, space requirement, trivial operations, it is difficult to be widely used in orchard.
The content of the invention
Goal of the invention：The present invention relates to a kind of practical safe three-leg ladder in orchard, its object is to solve the terraced nothing of three-leg simple
Method adjustment, the fair problem for trampling tread, it will both trample the same pedal ladder of tread using spine ring, spine cup, slide plate, spring and bolt
Leg is closely coupled to together, desirably can every now and then be adjusted again and be maintained an equal level to meet user's demand；In order to reduce, prevent out
Now slide, topple, ground is on the one hand contacted with causing foot of ladder pad moment gross area by orthogonal shaft coupling, another aspect is by anti-skidding
Nail on sole further strengthens skidproof effect among pricking mellow soil deeply.Except this, ladder is constantly detected with dynamometry potentiometer
Foot pad provides ladder in good time with respect to foot of ladder distance change, by one-chip computer according to distribution of force may topple warning.So with
Not only to effectively ensure the personal safety of orchard application, while can also relievedly apply to other all kinds of places.
Technical scheme：The present invention is achieved by the following technical solutions：
The practical safe three-leg ladder in orchard, it is characterised in that：The three-legged ladder include pedal ladder leg, supporting ladder leg, trample tread and
Foot of ladder pad；The upper end of pedal ladder leg and supporting ladder leg with linking together with trampling tread adjustable angle, pedal ladder leg and branch
The lower end of the terraced leg of support all padded by foot of ladder with orthogonal shaft coupling, foot of ladder turn now to, upper and lower translation is connected；Two pedal ladder legs and
A piece supporting ladder leg is collectively forming the triangular support configurations relation to trampling tread.
It is provided with pedal ladder leg top on bolt fixing axle, bolt fixing axle coaxial line and is welded with spine ring, is trampled tread and wear
More spine ring is realized with the connection and rotation between pedal ladder leg；Spine cup is withheld on spine ring end face, spine ring is with spine cup by end face
Ratchet reaches engagement, positioning；Spine cup bottom outside is connected with slide plate, and the another side pressure of slide plate has holddown spring, and slide plate another end passes through two
The individual bearing pin parallel to bolt fixing axle axis is spacing and is connected to and tramples on tread, and bolt fixing axle passes through Ji Bei bottom centre
Circular hole, slide plate and holddown spring, are locked using nut, so as to accomplish the rotation between spine ring and spine cup and lock-bit.
The supporting ladder leg top left and right sides is all provided with the cross bolts rotating shaft passed through and trample tread, and its outside is with nut
Realize that lock-bit is compressed.
The pedal ladder leg is all configured with foot of ladder with supporting ladder leg bottom, and foot of ladder is cut with scissors using orthogonal shaft coupling with foot of ladder pad
Chain, foot of ladder contacts ground with being always ensured that foot of ladder pad gross area with foot of ladder pad on-link mode (OLM).
Foot of ladder 11 is provided with the vertical horizontal strip hole of eccentric axis on terraced leg center side line, i.e., horizontal circular hole upper and lower
To continuation, bearing pin passes through foot of ladder strip hole and orthogonal shaft coupling（12）, realize the rotation, up and down of foot of ladder and orthogonal connecting shaft internode
Translation is hinged；Foot of ladder strip hole is eccentric, and axial plane is orthogonal is provided with connectivity circular hole upwards, and inspection position bar, inspection position bar are inserted with the circular hole
Upper end is fixed with spacer, and spacer is promoted on tight against bearing pin by holddown spring, is driven when spacer is acted and is fixed on support
Slidingtype dynamometry potentiometer above determines the carrying change of foot of ladder pad, dynamometry potentiometer connection one-chip computer indirectly.
Dynamometry potentiometer is at any time by foot of ladder pad stress check calculation into resistance parameter, and one-chip computer becomes according to each leg distribution of force
Change, informed when surmounting predetermined threshold value warning of then being toppled in time.
Orthogonal shaft coupling lower end is rotatably connected on foot of ladder pad by rotating shaft, realizes that rotation is hinged according to this.
The rebasing end of foot of ladder is provided with anti-skidding sole.
Anti-skidding sole bottom is provided with anti-skidding nail.
Advantage and effect：The present invention provides a kind of orchard practical safe three-leg ladder, and the three-leg ladder mainly includes pedal ladder
Leg, supporting ladder leg, trample tread, foot of ladder, orthogonal shaft coupling, foot of ladder pad and optional anti-skidding sole；The tread of trampling passes through horizontal stroke
Connected to bolt rotating shaft with supporting ladder leg, while being stepped on using bearing pin, slide plate, spine cup, spine ring, holddown spring and bolt fixing axle are same
Plate ladder leg connection；The terraced leg pad is connected with pedal ladder leg, supporting ladder leg bottom respectively by orthogonal shaft coupling, foot of ladder, just
Under commissure joint is helped, terraced leg pad remains that achieving full-area contact is realized on same ground, and optional anti-skidding sole further weakens, avoided
Orchard soft terrain uses the sliding being likely to occur, event of toppling；The foot of ladder is using strip hole by bearing pin with orthogonal
Shaft coupling circular hole hinge, the orthogonal upward insertion circular hole interpolation inspection position bar of foot of ladder strip hole bias axial plane, is promoted in holddown spring
Under, the linkage slidingtype dynamometry potentiometer moment reflects the gravity that foot of ladder pad is carried indirectly with resistance Parameters variation, finally by list
Piece computer provides the warning that may topple in good time according to each leg distribution of force by default or training threshold value.
The invention under the premise for inheriting simple three-leg ladder many advantages, by introduce trample tread through slide plate, spine cup,
Spine ring, bolt fixing axle with the connection of pedal ladder leg, overcome trample tread can not with terraced leg folding angle difference adjustment, maintain an equal level
The drawbacks of；Meanwhile, both remain original folding by means of the cross bolts rotating shaft trampled between tread and supporting ladder leg, rotate freely spy
Property, the random degree of rotation is again limited, and then improve and use safety guarantee；Orthogonal shaft coupling, foot of ladder pad, anti-skidding sole, cunning
The collective effect of dynamic formula dynamometry potentiometer and one-chip computer etc., has increased anti-skidding, overturn-preventing that simple three-leg ladder never has newly
With the warning effect that topples, can not only safely be used in variety classes environment, can also be widely applicable for each age level,
Physical efficiency, agility crowd, even suffer from certain slight handicapped person and open with possible.
The present invention is simple for structure, reliable, reasonable, multiple functional, not only remains the original effect of simple three-leg ladder, characteristic,
And increased newly trample tread maintain an equal level adjustment, supporting ladder leg rotate constraint, foot of ladder pad gross area contact to earth with may topple warning accuse
Know, so as to by fundamentally having taken precautions against the personal injury event generation because of the initiation that slides, topples, significantly improve different crowd
Safe handling limitation, is additionally greatly expanded various geographical environment adaptability.
Brief description of the drawings：
Fig. 1 is agent structure of the invention, schematic layout pattern；
Fig. 2 is Fig. 1 side view；
Fig. 3 tramples tread with supporting ladder leg, pedal ladder leg attachment structure schematic diagram for the present invention's；
Fig. 4 is Fig. 3 side view；
Fig. 5 shows for each terraced same foot of ladder of leg of the present invention, orthogonal shaft coupling, foot of ladder pad, anti-skidding sole, dynamometry potentiometer attachment structure
It is intended to；
Fig. 6 is Fig. 5 side view.
Embodiment：The present invention is described further below in conjunction with the accompanying drawings：
The practical safe three-leg ladder in orchard, the three-legged ladder includes pedal ladder leg 1, supporting ladder leg 2, tramples tread 3 and foot of ladder pad 16；
The upper end of pedal ladder leg 1 and supporting ladder leg 2 links together in which can adjust with trampling the angle of tread 3, pedal ladder leg 1 and supporting ladder
All realize that steering, upper and lower translation are connected by foot of ladder 11 and orthogonal shaft coupling 12, foot of ladder pad 16 in the lower end of leg 2；Two pedal ladders
Leg 1 and a supporting ladder leg 2 are collectively forming the triangular support configurations relation to trampling tread 3.
It is provided with the top of pedal ladder leg 1 on bolt fixing axle 8, the coaxial line of bolt fixing axle 8 and is welded with spine ring 5, tramples ladder
Face 3 passes through spine ring 5 and realizes connection and rotation between same pedal ladder leg 1；Spine cup 6, spine ring 5 and spine have been withheld on the end face of spine ring 5
Cup 6 reaches engagement, positioning by end face ratchet；Spine 6 bottom outsides of cup are connected with slide plate 9, and the another side pressure of slide plate 9 has holddown spring 7,
The another end of slide plate 9 is spacing and be connected to and trample on tread 3 by two bearing pins 10 parallel to the axis of bolt fixing axle 8, and bolt is solid
Dead axle 8 passes through the bottom centre's circular holes of Ji Bei 6, slide plate 9 and holddown spring 7, is locked using nut, thus accomplish spine ring 5 with
Rotation and lock-bit between spine cup 6.
The top left and right sides of supporting ladder leg 2 all provided with passing through the cross bolts rotating shaft 4 of trampling tread 3, its outside with
Nut realizes that lock-bit is compressed.
The pedal ladder leg 1 is all configured with foot of ladder 11 with the bottom of supporting ladder leg 2, and foot of ladder 11 is using orthogonal shaft coupling 12 with ladder
The hinge of foot pad 16, foot of ladder 11 contacts ground with being always ensured that the gross area of foot of ladder pad 16 with the on-link mode (OLM) of foot of ladder pad 16.
Foot of ladder 11 is provided with vertical strip hole, i.e., the continuation of horizontal circular hole above-below direction, bearing pin 13 on center side line
The strip hole of foot of ladder 11 and orthogonal shaft coupling 12 are passed through, realizes that the rotation between foot of ladder 11 and orthogonal shaft coupling 12, upper and lower translation are hinged；
The strip hole of foot of ladder 11 is orthogonal to be provided with connectivity circular hole upwards, inspection position bar 19 is inserted with the circular hole, it is fixed that inspection position bar 19 upper end is fixed with
Bit slice 20, spacer 20 is promoted tight against on bearing pin 13 by holddown spring 21, and support 22 is fixed in drive when spacer 20 is acted
Slidingtype dynamometry potentiometer 23 above determines the carrying change of foot of ladder pad 16, the connection one-chip computer of dynamometry potentiometer 23 indirectly
24。
The orthogonal lower end of shaft coupling 12 is rotatably connected on foot of ladder pad 16 by rotating shaft 14, realizes that rotation is hinged according to this.
The bottom of foot of ladder pad 16 is provided with anti-skidding sole 17.
The anti-skidding bottom of sole 17 is provided with available anti-skidding nail 18.
As shown in figure 1, the present invention provides a kind of orchard practical safe three-leg ladder, the three-leg ladder mainly includes pedal ladder leg
1st, supporting ladder leg 2, trample tread 3 and the early warning one-chip computer 24 that topples；Pedal ladder leg 1 is supplied used in the upper and lower climbing of user, it
Crossbeam that people trample is arranged and provided at a certain distance through weldering with some by left and right terraced leg（Riveting）Connect and form, no matter terraced leg is also
It is to trample crossbeam, can both uses angular, flute profile, square or rectangle, also can be in irony, aluminum, magnalium, aluminium titanium and stainless steel
Between pick out at random, actual product is at that time according to intensity, quality, cost, durability, anticorrosive, and its market purchasing convenience
Etc. all class factors, determined after Comprehensive, balance；Supporting ladder leg 2 belongs to single leg type column, and its function is only in that branch
Standing when holding ladder without dependence is not fallen, and its cross sectional shape species and choice of material are analogous to pedal ladder leg 1；Tread 3 is trampled to lead
Shape is a rectangle frame, and frame can both be welded, and can also rivet, be bolted together, and is existed for increase intensity
Centre weldering（Riveting）Crossbeam is connected to, to prevent user from accidentally squeezing pin in crossbeam between frame, can be welded above（Riveting）Fishplate bar
Shape or netted covering, trample the cross sectional form species and choice of material of the frame of tread 3 and crossbeam, and its top cover material
Selection is analogous to pedal ladder leg 1；Trample tread 3 with pedal ladder leg 1, supporting ladder leg 2 with bolt rotating shaft mode to be connected, first ask for an advance on one's pay
The terraced leg 2 of support is relative to be trampled tread 3 and rotates and realize that folding changes, and is separately then stepped on using pedal ladder leg 1 relative to trampling the rotation of tread 3 and reach
Step face 3, which maintains an equal level, to be adjusted；Then constantly detection pedal ladder leg 1, the bottom dynamometry potentiometer parameter of supporting ladder leg 2 become one-chip computer 24
Change, the warning that may topple is provided in good time and is informed.The alert thresholds that topple are accumulated by default, practical application experience, each leg stress cloth
Office, stress change rapidity, development trend etc., on the basis of the unbalance recovery agility memorized reference of nearest user's center of gravity, lead to
Prediction is crossed to be produced.
Tread 3 is trampled with the attachment structure signal between supporting ladder leg 2, pedal ladder leg 1 as shown in Fig. 2 giving.It is first
First, welded on the top orthogonal vertical direction of supporting ladder leg 2（Riveting）Connect angular, the flute profile or square for slightly shorter than trampling the width of tread 3
Crossbeam, crossbeam left and right sides corner is welded with for passing through the cross bolts rotating shaft 4 trampled tread 3 and play connection function,
Realize that lock-bit is compressed in the outside of cross bolts rotating shaft 4 with nut.Here, why crossbeam does not follow common now inside and outside
Pipe wears thinking, and its basic goal is exactly while characteristic is relatively rotated between reservation supporting ladder leg 2 tramples together tread 3, to press
Tight beam regulation is set according to user intention offer is necessary, so as to overcome the safe handling hidden danger that original random rotational band is come.Go out
In easy to process with avoiding electro-chemical reaction, crossbeam material should be consistent with supporting ladder leg 2.Secondly, stepped on to ensure that pedal ladder leg 1 is same
The intermarginal great disparity within reason in the outside of step face 3, the column top of pedal ladder leg 1 in the left and right sides is all welded with angular transition body, angle
One side of shape transition body is welded on the cross section of pedal ladder leg 1, and opposite side is vacantly used to consolidate by the bolt of circular hole thereon
Dead axle 8 realizes connection with tread 3 is trampled.Angular transition body is hanging facing to welding in the circular hole concentric shafts for trampling the side of tread 3
There is a spine ring 5, spine ring 5 realizes that tread 3 is trampled in support through trampling the frame vertical plane circular hole of tread 3, and reach and allow pedal ladder leg 1 can
To be rotated around bolt fixing axle 8 relative to tread 3 is trampled, the fair adjustment of tread 3 is trampled so as to meet.For the purpose of ensuring that pedal ladder leg
1 and trample corner between tread 3 and lock, glass bottom center hole is withheld on spine ring 5 through the spine cup 6 of bolt fixing axle 8, spine cup
It is set with holddown spring 7 in the bolt fixing axle 8 of 6 another sides, end is with nut gear, locking, and nut adjusts pressure according to this
The elasticity tension of tight spring 7.For up to spine 6 targets of cup, its bottom face outside is welded（Riveting）Slide plate 9 is connect, the another end of slide plate 9 is by dividing
Bearing pin 10 in two circular hole is not passed through close to be connected and maintain each other that pose, angle are constant with trampling tread 3 and realize.To be pre-
Antiskid plate 9, which departs from bearing pin 10, to be there is ladder and falls, and bearing pin 10, which should be selected, has perforate species, and is given with split pin spacing.
Regulation trample tread 3 maintain an equal level angle when spine cup 6 is together risen together with slide plate 9 along the axial plate of bearing pin 10, depart from spine ring 5, spine cup 6
Engagement, unclamps spine cup 6 and slide plate 9 after the completion of regulation, original spine ring 5, spine are recovered again under the promotion of holddown spring 7
Locking is engaged between cup 6.The ratchet that spine ring 5 belongs to ratchet in fact is changing to the simple mutation of ring cross-section, spine cup 6 from circumference bus
Spine ring 5 is also similar to, difference is only the former for the offer of holddown spring 7 acts supporting surface and is set in ratchet opposition end bottom
There is the cup bottom of center hole.Spine ring 5, the tooth form of spine cup 6 both can be triangles, also can be trapezoidal or rectangle, it is selected
It is reconciling, trading off between tooth pitch, high tooth, locking security and the conversion degree of convenience etc. that maintains an equal level to take crucial foundation.Tooth pitch herein
It is overriding concern emphasis, because it directly decides the exquisiteness and resolution ratio for trampling the fair adjustment of tread 3, but due to restricted
In the restriction of other several factors, can not excessively preference and be led to obstruction overall performance and improve.In fact, spine ring 5, spine cup 6, cunning
Fair regulation that plate 9 and holddown spring 7 etc. are collectively constituted, locking mechanism not reach the unique channel of this target, if being ready
Still replaced using traditional ratchet, ratchet.
As shown in Figures 1 and 3, the terraced leg bottom in the left and right of supporting ladder leg 2 and pedal ladder leg 1 is all welded（Riveting）Foot of ladder 11 is connected to,
Foot of ladder 11 is provided with the continuation of the vertical horizontal strip hole of eccentric axis, i.e. transverse direction circular hole above-below direction on center side line, from
It is a vertical strip hole that side, which is seen, and the strip hole runs through foot of ladder 11, so that the bearing pin 13 passed through therebetween is made in carrying pressure
Upper and lower translation motion is made under, bearing pin 13 from opening type and prevents it to come off with split pin insertion, bending.Pass through foot of ladder 11
The bearing pin 13 of strip hole realizes rotary gemel with the orthogonal top circular hole of shaft coupling 12, and orthogonal shaft coupling 12 is relative to nose-circle hole axle
Line is orthogonal and the rotating shaft 14 on the lower side being welded in together, under the help of rotating shaft buckle closure 15 that orthogonal shaft coupling 12 and foot of ladder pad 16 is tight
Thickly link together.The side that lands of foot of ladder pad 16 can connect anti-skidding sole 17, anti-skidding sole temporarily optionally through bolt
Anti-skidding nail 18 on 17 ensure that orchard soft terrain using being not in that sliding is toppled.Anti-skidding nail on anti-skidding sole 17
18 numbers can be changed, but consider with length according to geology species and user intention in quite broad scope
Stress equalization and visual appearance, recommend to the utmost in pairs, be arranged symmetrically.Its transversal dimensions, choice of material also have great deal empty
Between, such as, it can just be chosen in terms of material between cast iron, mild steel, high-carbon steel, or even manganese steel etc..Certainly, appropriately
Material positioning must still take durable, hardness, embrittlement, cost and buying convenience, etc. into account, can not attend to one thing and lose sight of another.Orthogonal shaft coupling
12 and rotating shaft 14 thereon undertaken the front, rear, left and right of foot of ladder pad 16 jointly and adapted to the uneven mission in ground, finally ensure foot of ladder
Pad 16 maintains contact gross area, takes this to further improve anti-skidding topple all the time within the sufficiently large slant range in ground
Tumble is collapsed with rat hole.In addition, taking on the rotating shaft buckle closure that rotating shaft 14 on orthogonal shaft coupling 12 compresses lock-bit responsibility with foot of ladder pad 16
15, not only bear connection function, and both sides or so distribution and close twist-on yet forms both without specially adjust it is non-wantonly, from
Adapt to ground slope characteristic.
As it was previously stated, the bearing pin 13 passed through in the strip hole of foot of ladder 11 is not only connected to foot of ladder 11 and orthogonal shaft coupling 12, make
Obtain orthogonal shaft coupling 12 may be rotated, while it is also inspection position bar 19, and its connected dynamometry current potential 23 is provided and acted
Rely on.Bearing pin 13 is tightly fixed to above orthogonal shaft coupling 12, and both is almost motionless, and bearing pin 13 is passed through
The structure of the vertical strip hole of foot of ladder 11 to change with the stress of foot of ladder pad 16, drive orthogonal shaft coupling 12 together with bearing pin 13 relative to
Foot of ladder 11 does upper and lower translation motion, because bearing pin 13 is circular, so also make it that orthogonal shaft coupling 12 is relative around the axis of bearing pin 13
Rotated in foot of ladder 11.Inspection position bar 19 is fixed with spacer 20 in the outside of foot of ladder 11, and spacer 20 is promoted and tight by holddown spring 21
Offset axle 13 on, the another side of holddown spring 21 rely on fixed support 22 turn to bottom plate and constitute assembling stop coordinate.Spacer
20 drive the slidingtype dynamometry potentiometer 23 being fixed on above support 22, and foot of ladder pad 16 is carried into the caused bearing pin 13 of stress change
It is mobile, change into resistance parameter variations indirectly, and then be collected into by one-chip computer 24 each terraced leg load-bearing and distribution,
Development trend, with reference to various preceding factors, considers after Comprehensive, gives necessary warning quarter in due course and informs.Dynamometry
Potentiometer 23 is connected with spacer 20, can either use snap fit, socket joint type can also be used, comparatively, if current potential
The travelling arm of device is thick enough, and plug-in slightly shows advantage in terms of assembling and gap are adapted to.
Claims (8)
1. the practical safe three-leg ladder in orchard, it is characterised in that：The three-legged ladder includes pedal ladder leg（1）, supporting ladder leg（2）, step on
Step face（3）With foot of ladder pad（16）；Pedal ladder leg（1）With supporting ladder leg（2）Upper end with trampling tread（3）Angle can adjust ground
Link together, pedal ladder leg（1）With supporting ladder leg（2）Lower end all pass through foot of ladder（11）With orthogonal shaft coupling（12）, foot of ladder
Pad（16）Realize steering, upper and lower translation connection；Two pedal ladder legs（1）With a supporting ladder leg（2）It is collectively forming to trampling ladder
Face（3）Triangular support configurations relation.
2. the practical safe three-leg ladder in orchard according to claim 1, it is characterised in that：In pedal ladder leg（1）Top is set
There is bolt fixing axle（8）, bolt fixing axle（8）Spine ring is welded with coaxial line（5）, trample tread（3）Pass through spine ring（5）Realize same
Pedal ladder leg（1）Between connection and rotation；In spine ring（5）Spine cup has been withheld on end face（6）, spine ring（5）With spine cup（6）By end
Face ratchet reaches engagement and positioned；Spine cup（6）Bottom outside is connected with slide plate（9）, slide plate（9）Another side pressure has holddown spring（7）,
Slide plate（9）Another end is by two parallel to bolt fixing axle（8）The bearing pin of axis（10）It is spacing and be connected to and trample tread（3）
On, bolt fixing axle（8）Pass through spine cup（6）Bottom centre's circular hole, slide plate（9）With holddown spring（7）, locked using nut
Tightly, so as to accomplish spine ring（5）With spine cup（6）Between rotation and lock-bit.
3. the practical safe three-leg ladder in orchard according to claim 1, it is characterised in that：The supporting ladder leg（2）Top is left
Right both sides, which all are provided with to pass through, tramples tread（3）Cross bolts rotating shaft（4）, its outside realizes that lock-bit is compressed with nut.
4. the practical safe three-leg ladder in orchard according to claim 1-3, it is characterised in that：The pedal ladder leg（1）With branch
The terraced leg of support（2）Bottom is all configured with foot of ladder（11）, foot of ladder（11）Utilize orthogonal shaft coupling（12）With foot of ladder pad（16）Hinge, foot of ladder
（11）With foot of ladder pad（16）On-link mode (OLM) is always ensured that foot of ladder pad（16）Contact ground gross area.
5. the practical safe three-leg ladder in orchard according to claim 4, it is characterised in that：Foot of ladder（11）On center side line
It is provided with vertical strip hole, bearing pin（13）Pass through foot of ladder（11）Strip hole and orthogonal shaft coupling（12）, realize foot of ladder（11）With just
Commissure joint（12）Between rotation and upper and lower translation be hinged；Foot of ladder（11）Strip hole is orthogonal to be provided with connectivity circular hole upwards, the circle
Inspection position bar is inserted with hole（19）, examine position bar（19）Upper end is fixed with spacer（20）, spacer（20）By holddown spring（21）Push away
Move tight against bearing pin（13）On, spacer（20）Driven during action and be fixed on support（22）Slidingtype dynamometry potentiometer above
（23）Foot of ladder pad is determined indirectly（16）Carrying change, dynamometry potentiometer（23）Connect one-chip computer（24）.
6. the practical safe three-leg ladder in orchard according to claim 5, it is characterised in that：Orthogonal shaft coupling（12）Lower end passes through
Rotating shaft（14）It is rotatably connected at foot of ladder pad（16）On, realize that rotation is hinged according to this.
7. the practical safe three-leg ladder in orchard according to claim 1, it is characterised in that：Foot of ladder pad（16）Bottom is provided with anti-
Shoes plate（17）.
8. the practical safe three-leg ladder in orchard according to claim 7, it is characterised in that：Anti-skidding sole（17）Bottom is provided with
Available anti-skidding nail（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311516.1A CN107013158B (en) | 2017-05-05 | 2017-05-05 | Practical and safe three-leg ladder for orchard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311516.1A CN107013158B (en) | 2017-05-05 | 2017-05-05 | Practical and safe three-leg ladder for orchard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013158A true CN107013158A (en) | 2017-08-04 |
| CN107013158B CN107013158B (en) | 2020-06-19 |
Family
ID=59449445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710311516.1A Expired - Fee Related CN107013158B (en) | 2017-05-05 | 2017-05-05 | Practical and safe three-leg ladder for orchard |
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| Country | Link |
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| CN (1) | CN107013158B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071975A1 (en) * | 2021-10-25 | 2023-05-04 | 东莞长谷川金属制品有限公司 | Pedal system and ladder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839541Y (en) * | 2005-09-30 | 2006-11-22 | 碧卡株式会社 | Universal support parts |
| CN1914402A (en) * | 2004-02-26 | 2007-02-14 | 梅尔文·迈克肯兹·斯图尔特 | Ladder stabiliser |
| CN200992947Y (en) * | 2006-12-22 | 2007-12-19 | 金佳宇 | Multifunctional three-leg ladder |
| CN202249715U (en) * | 2011-08-16 | 2012-05-30 | 严启卓 | Folding type triangular ladder |
| EP3088653A1 (en) * | 2015-04-30 | 2016-11-02 | Laboratorio di Tappezzeria Poletto | Assembly with combined support element and ladder |
| CN207194800U (en) * | 2017-05-05 | 2018-04-06 | 沈阳工业大学 | The practical safe three-leg ladder in orchard |
-
2017
- 2017-05-05 CN CN201710311516.1A patent/CN107013158B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1914402A (en) * | 2004-02-26 | 2007-02-14 | 梅尔文·迈克肯兹·斯图尔特 | Ladder stabiliser |
| CN2839541Y (en) * | 2005-09-30 | 2006-11-22 | 碧卡株式会社 | Universal support parts |
| CN200992947Y (en) * | 2006-12-22 | 2007-12-19 | 金佳宇 | Multifunctional three-leg ladder |
| CN202249715U (en) * | 2011-08-16 | 2012-05-30 | 严启卓 | Folding type triangular ladder |
| EP3088653A1 (en) * | 2015-04-30 | 2016-11-02 | Laboratorio di Tappezzeria Poletto | Assembly with combined support element and ladder |
| CN207194800U (en) * | 2017-05-05 | 2018-04-06 | 沈阳工业大学 | The practical safe three-leg ladder in orchard |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071975A1 (en) * | 2021-10-25 | 2023-05-04 | 东莞长谷川金属制品有限公司 | Pedal system and ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107013158B (en) | 2020-06-19 |
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