CN106677695B - Terraced joint - Google Patents
Terraced joint Download PDFInfo
- Publication number
- CN106677695B CN106677695B CN201710026893.0A CN201710026893A CN106677695B CN 106677695 B CN106677695 B CN 106677695B CN 201710026893 A CN201710026893 A CN 201710026893A CN 106677695 B CN106677695 B CN 106677695B
- Authority
- CN
- China
- Prior art keywords
- locking teeth
- ladder
- outer box
- locking
- hinge shaft
- 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.)
- Expired - Fee Related
Links
- 210000000515 tooth Anatomy 0.000 claims description 24
- 238000012856 packing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The present invention proposes a kind of terraced joint, and for first ladder and second ladder of being articulated and connected, the ladder joint includes：First locking teeth is fixedly connected with first ladder；Second locking teeth is rotatablely connected with second ladder；First ladder and second ladder are rotatablely connected by the first hinge shaft；First locking teeth and second locking teeth intermeshing, and first locking teeth and second locking teeth are one-way locking.The present invention can realize adjustment angle multifarious variation and adjustment it is continuous, it is thus possible to adapt to the variation of folding ladder opening angle.
Description
Technical field
The present invention relates to a kind of for connecting the joint of ladder, i.e., a kind of terraced joint.
Background technology
Existing folding ladder can be rotated mutually between two panels ladder, and shape has a certain degree.But existing folding ladder
Connecting joint between two panels ladder is positioned only by the mode of simple snaps into position, only sets several buckles, and one
As for 3, so, the adjustment angle between two panels ladder also only has a limited number of, and generally namely 3, adjustment is inconvenient,
Influence the use of ladder.
Invention content
The present invention provides a kind of terraced joint, to solve existing ladder angle adjustment inconvenience, discontinuous problem.
For this purpose, the present invention proposes a kind of terraced joint, for first ladder and second ladder of being articulated and connected, the ladder closes
Section includes：
First locking teeth is fixedly connected with first ladder；
Second locking teeth is rotatablely connected with second ladder；
First ladder and second ladder are rotatablely connected by the first hinge shaft；
First locking teeth and second locking teeth intermeshing, and first locking teeth and second lock
Tight tooth is one-way locking.
Further, first locking teeth is semi-circular gear, the axle center of the semi-circular gear and the described first hinge
Axis is concentric, and second locking teeth has both ends, the respectively second end of the first end of the second locking teeth and the second locking teeth, institute
Stating the second locking teeth also has medial surface and lateral surface, and the first end of second locking teeth passes through the second hinge with second ladder
Axis is articulated and connected, and the semi-circular gear is between first hinge shaft and second hinge shaft；Second locking teeth
The column spring of return action is compressed in second end, the medial surface of second locking teeth is arc-shaped, second locking teeth
The tooth engaged that is meshed with semi-circular gear of medial surface, the column spring is pressed on the institute at the second end of second locking teeth
It states on lateral surface.
Further, the terraced joint further includes：The first outer box and cladding being coated on except first locking teeth
The second outer box except second locking teeth, first outer box are cut with scissors with second outer box by first hinge shaft
It connects；
First locking teeth is fixedly connected in first outer box, and second locking teeth passes through second hinge shaft
It is hingedly connected in second outer box；First locking teeth is fixed by first outer box and first ladder to be connected
It connects；Second locking teeth is connect by being rotatably connected in second outer box with second ladder, outside described second
The spring base for supporting the column spring is additionally provided in box.
Further, the torsional spring for replying second locking teeth is arranged on second hinge shaft.
Further, the second end of first end and first outer box of first outer box with the first outer box, described second
Outer box have a first end of the second outer box and the second end of the second outer box, and the of the first ends of first outer box and the second outer box
One end is hinged；The second end of first outer box connects first ladder, and the second end of second outer box is fixedly connected
Second ladder；
The ladder joint further includes：Bracing wire, connects the second end of second locking teeth, and the bracing wire is located at described second
In outer box and stretch out the second ends of second outer box.
Further, the bracing wire connects the second end of second locking teeth by being threaded through in the column spring.
Further, it is additionally provided with the guider being oriented to the bracing wire in second outer box.
Further, the semi-circular gear is equipped with 6 to 90 teeth.
Further, second locking teeth is rack, and the number of teeth of the rack is 3 to 6.
Further, the semi-circular gear is fixed on by more than two rivets in first outer box.
Further, first outer box and second outer box are two-piece unit formula structure.
The present invention is using wheel gear locking, and two locking teeths are connect respectively with two panels ladder, so adjustment angle can be realized
Multifarious variation and adjustment it is continuous, it is thus possible to adapt to the variation of folding ladder opening angle.
And then the present invention realizes auto lock using column spring, avoiding tradition locking needs the buckle people of two panels ladder
The operation of work alignment, reduces the danger of ladder opening.And then the present invention replys the second locking jointly using column spring and torsional spring
Tooth, first, foring dual fail-safe, two are the reduction of the abrasion of column spring and torsional spring, increase the service life in entire joint.
And then the present invention controls the position of the second locking teeth using bracing wire, so as to control the locking between two locking teeths,
In this way, it may not necessarily need to climb to the junction of the joint, i.e. ladder peak of ladder as traditional snap lock, to lock
Or unlock buckle, the present invention can ladder lower part stear drawing line so as to fulfill locking or unlocking two panels ladder, avoid every
It is secondary to fold or need to climb to the operation on ladder vertex again when packing up ladder, reduce accident odds, increase safety,
It is also convenient for quickly packing up.
Description of the drawings
Fig. 1 is the external structure schematic diagram according to the terraced joint of the embodiment of the present invention；
Fig. 2 is the internal structure schematic diagram according to the terraced joint of the embodiment of the present invention；
Fig. 3 is according to the terraced joint of the embodiment of the present invention and the attachment structure schematic diagram of ladder.
Drawing reference numeral explanation：
10th, terraced 11, first, joint 12, second ladders of ladder
1st, the first locking teeth 2, the second locking teeth 3, the first outer box 4, the second outer box 5, the first hinge shaft 6, bracing wire 7,
Second hinge shaft 8, spring base 9, column spring 20, threading groove 30, rivet 30, rivet 32, the second end 42 of the first outer box,
45 guider of second end of two outer box
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control illustrates this hair
Bright specific embodiment.
As shown in Figure 1, Figure 2 and Figure 3, the present invention proposes a kind of terraced joint 10, for first 11 He of ladder that be articulated and connected
Second ladder 12, as shown in figure 3, every ladder has two parallel vertical supporting bars for being supported on ground and is connected to
The different horizontal stroke ladder of multiple height between two parallel vertical supporting bars, people are climbed by horizontal ladder；
As shown in Figure 1 and Figure 2, the terraced joint 10 includes：
First locking teeth 1 is fixedly connected with first ladder 11；
Second locking teeth 2 is rotatablely connected with second ladder 12, i.e., the second locking teeth 2 can be relative to second
Ladder 12 rotates；
First ladder 11 and second ladder 12 are rotatablely connected by the first hinge shaft 5；
First locking teeth 1 and second locking teeth 2 are intermeshed, and first locking teeth 1 and described
Two locking teeths 2 are one-way locking, for example, when first ladder 11 and second ladder 12 mutually close up, the first locking teeth 1 and institute
Gear drive can be formed by stating the second locking teeth 2, and first ladder 11 and second ladder 12 are located remotely from each other, when angle becomes larger,
First locking teeth 1 and second locking teeth 2 are locked, in case ladder slips off outward in use.
Further, first locking teeth 1 is semi-circular gear, because the maximum opening angle of ladder is 180 degree, institute
To be just sufficient for the maximum opening angle of ladder using semi-circular gear, so as to reduce cost, alleviate weight, space
It is more compact；The axle center of the semi-circular gear 1 and first hinge shaft 5 are concentric, and second locking teeth 2 has both ends, respectively
For the first end of the second locking teeth and the second end of the second locking teeth, second locking teeth also has medial surface and lateral surface,
The first end of second locking teeth is articulated and connected with second ladder by the second hinge shaft 7, and the semi-circular gear 1 is located at institute
It states between the first hinge shaft 5 and second hinge shaft 7；The column spring of return action is compressed in the second end of second locking teeth
9, the medial surface of second locking teeth 2 is arc-shaped, this is arc-shaped coaxial with the gear of the first locking teeth or with the first hinge shaft,
So that the second locking teeth 2 is meshed with the first locking teeth, the medial surface of second locking teeth is mutually nibbled equipped with semi-circular gear
The tooth engaged of conjunction, i.e. the second locking teeth 2 are the tooth of multiple straight lines arrangement, and the column spring 9 is pressed on the of second locking teeth
On the lateral surface at two ends, to realize one-way locking.
In the case of the External force interference of nobody, column spring (cylindrical spring) 9 so that 2 automatic impaction of the second locking teeth the
In one locking teeth 1, when the second locking teeth 2 is relative to the first 1 inwardly rotation of locking teeth, the second locking teeth 2 is by inside effect
Power, i.e. the second locking teeth 2 by the second end from the second locking teeth to the power of the first extreme direction of the second locking teeth, at this point, by
It is fixing end in the first end of the second locking teeth, the first end of the second locking teeth is immovable, so as to prevent 2 phase of the second locking teeth
To the first inwardly rotation of locking teeth 1, so as to which two panels ladder be prevented to open；But for opposite first locking teeth 1 of the second locking teeth 2 to
Outer rotation, at this point, the second locking teeth 2, by the outside thrust of the first locking teeth 1, the second end of the second locking teeth is on-fixed
End, since the second locking teeth 2 is by return action power of the outside thrust of the first locking teeth 1 more than column spring 9, though there is column spring 9
Return action power, but do not influence the second locking teeth 2 and be turned out or move relative to the first locking teeth 1, thus, the second locking teeth 2
The pressure being pressed in the first locking teeth 1 relatively rotates not contradiction, thus 2 opposite turns of the second locking teeth with the second locking teeth 2
Dynamic unaffected, i.e., when two panels ladder closes up, joint does not influence packing up or closing up for ladder.
Further, the terraced joint 10 further includes：The first outer box 3 for being coated on except first locking teeth 1 and
The second outer box 4 being coated on except second locking teeth 2, first outer box 3 pass through described first with second outer box 4
Hinge shaft 5 is hinged；First outer box 3 can be relatively rotated with second outer box 4, form different angles, so as to form ladder
Different subtended angles；
First outer box 3 are fixedly connected with first ladder 11, and the second ladder 12 of outer box 4 second is fixedly connected；
First locking teeth 1 is fixedly connected in first outer box 3, and second locking teeth 2 passes through described second
Hinge shaft 5 is hingedly connected in second outer box 4；First locking teeth 1 passes through first outer box 3 and first ladder
Son 11 is fixedly connected；Second locking teeth 2 is rotatably connected in second outer box and described second by the second hinge shaft 7
Ladder 12 connects, and the spring base 8 for supporting the column spring 9 is additionally provided in second outer box 4.Outside first outer box 3 and described second
Box 4 mainly plays a part of to close off and protects corresponding locking teeth, and provide and fix and support for corresponding locking teeth；It can be with
Support is provided for column spring 9.
Further, the torsional spring that being arranged on second hinge shaft 7 replys second locking teeth 2 (does not show in figure
Go out).Torsional spring also functions to return action, can make two locking teeth auto locks in the case of the External force interference of nobody.Its
In, the second hinge shaft 7 is arranged in the second outer box 4, and the bottom of the second hinge shaft 7 stretches out the second locking teeth 2 and exposes the second outer box
4, the second locking teeth 2 is stretched out at the top of the second hinge shaft 7, and torsional spring is respectively sleeved at the bottom of the second hinge shaft 7 and the top of the second hinge shaft 7
Portion is respectively sleeved at the both ends of the second hinge shaft 7, on the one hand can play return action, on the other hand, moreover it is possible to play to second
Hinge shaft 7 carries out the effect of axially position and buffering, plays good counterbalance effect.
Further, first outer box 3 have a first end of the first outer box and the second end 32 of the first outer box, and described the
Two outer box 4 have the first end of the second outer box and the second end 42 of the second outer box, outside the first end and second of first outer box
The first end of box is hinged；The second end 32 of first outer box connects first ladder 11, and the second of second outer box
End 42 is fixedly connected with second ladder 12；
The ladder joint 10 further includes：Bracing wire 6, connects the second end of second locking teeth 2, and the bracing wire 6 is located at institute
The second end 42 of second outer box is stated in the second outer box 4 and stretches out, the second end of the second locking teeth 2 is locked with the first locking teeth 1
Next, bracing wire can overcome the pressure of torsional spring, pull the second end of the second locking teeth 2, be detached from the second end of the second locking teeth 2
With the contact of the first locking teeth 1, so as to release the locking with the first locking teeth 1, in this way, ladder can be opened；Second locking teeth 2
The locking of second end and the first locking teeth 1 after, when exert a force to bracing wire, the second end of the second locking teeth 2 and the first locking teeth 1
It then keeps being engaged, maintains locking, at this point, two panels ladder cannot open outward, but two panels ladder inwardly can then be packed up；Due to
The second end 42 of two outer box is fixedly connected with second ladder 12, is equivalent to the control extended to the second locking teeth 2 in this way
Length can be extended at locking teeth at second ladder, reduces control height.Second locking teeth is controlled using bracing wire
Position, so as to control the locking between two locking teeths, in this way, may not necessarily need to climb to ladder as traditional snap lock
Joint, i.e. ladder peak junction, to lock or unlock buckle, the present invention can be in the lower part stear drawing line of ladder
So as to fulfill locking or unlocking two panels ladder, avoid needs to climb to the behaviour on ladder vertex again when folding or pack up ladder every time
Make, reduce accident odds, increase safety, be also convenient for quickly packing up.
Further, the bracing wire 6 connects the second end of second locking teeth 2 by being threaded through in the column spring 9, this
Sample, setting is ingenious, the problem of guy winding other component will not occur.The second end of second locking teeth 2 can be equipped with threading groove
20, so that bracing wire is fixed to the second end of the second locking teeth 2.
Further, the guider 45 being oriented to the bracing wire 6 is additionally provided in second outer box 4, drawing can be adjusted
The direction of line 6.Guider 45 is, for example, lead.
Further, the semi-circular gear be equipped with 6 to 90 teeth, for example, 20 to 60 equally distributed teeth, in this way
It can realize fine-tuning for the continuous multi-angle in the range of 180 degree, disclosure satisfy that the various needs that ladder opens.
Further, second locking teeth 2 be the rack with circular ring shape medial surface, (tooth engaged) tooth of the rack
Number is 3 to 6.Since the first locking teeth 1 has multiple teeth, 180 degree rotation can be carried out, thus, the second locking teeth 2 only needs several
A tooth is just enough, and the length of the second locking teeth 2 can accomplish smaller, and the number of teeth can be done less, facilitated manufacture processing and installation, subtracted
Light ladder quality.
Further, the semi-circular gear is fixed on by more than two rivets 30 in first outer box 3, example
Such as, it is fixed with 3 rivets, in this way, 1 fixing-stable of the first locking teeth, will not rotate relative to the first outer box 3.
Further, first outer box 3 and second outer box 4 are two-piece unit formula structure, main protection and envelope
The upper and lower ends of the first locking teeth 1 and second locking teeth 2 are closed, the first outer box 3 are with second outer box 4 in the first locking teeth
1 and 2 intermeshing of the second locking teeth at be equipped with opening, not influence the engagement and rotation of two locking teeths, the first outer box 3
Two halves up and down are divided into second outer box 4, to re-form envelope after installing the first locking teeth 1 and second locking teeth 2
It closes.
The terraced joint of the present invention can realize that stablize locking and the multi-angle of folding ladder accurately adjust.The present invention uses bracing wire
Control locking, it may not be necessary to need to climb to the junction of the joint, i.e. ladder peak of ladder as traditional snap lock, come
Locking or unlock buckle, the present invention can ladder lower part stear drawing line so as to fulfill locking or unlocking two panels ladder, avoid
Each folding or while packing up ladder, need to climb to the operation on ladder vertex again, reduce accident odds, increase peace
Quan Xing is also convenient for quickly packing up.
The foregoing is merely the schematical specific embodiments of the present invention, are not limited to the scope of the present invention.For this
Each component part of invention can be combined with each other under conditions of not conflicting, any those skilled in the art, not depart from this
Made equivalent variations and modification, should all belong to the scope of protection of the invention under the premise of the design of invention and principle.
Claims (6)
- A kind of 1. ladder joint, for first ladder and second ladder of being articulated and connected, which is characterized in that ladder joint packet It includes：First locking teeth is fixedly connected with first ladder；Second locking teeth is rotatablely connected with second ladder；First ladder and second ladder are rotatablely connected by the first hinge shaft；First locking teeth and second locking teeth intermeshing, and first locking teeth and second locking teeth For one-way locking；First locking teeth is semi-circular gear, and the axle center of the semi-circular gear and first hinge shaft are concentric, described the Two locking teeths have both ends, the respectively second end of the first end of the second locking teeth and the second locking teeth, second locking teeth Also there is medial surface and lateral surface, the first end of second locking teeth is articulated and connected with second ladder by the second hinge shaft, The semi-circular gear is between first hinge shaft and second hinge shaft；It is compressed in the second end of second locking teeth There is the column spring of return action, the medial surface of second locking teeth is arc-shaped, arc-shaped and the first locking teeth gear It is or coaxial with the first hinge shaft；The medial surface of second locking teeth is equipped with the tooth engaged being meshed with semi-circular gear, described Column spring is pressed on the lateral surface at the second end of second locking teeth；The ladder joint further includes：The first outer box for being coated on except first locking teeth and it is coated on second lock The second outer box except tight tooth, first outer box are hinged with second outer box by first hinge shaft；First locking teeth is fixedly connected in first outer box, and second locking teeth is hinged by second hinge shaft It is connected in second outer box；First locking teeth is fixedly connected by first outer box with first ladder； Second locking teeth is connect by being rotatably connected in second outer box with second ladder, in second outer box It is additionally provided with the spring base for supporting the column spring；First outer box have the first end of the first outer box and the second end of the first outer box, and second outer box have outside second The second end of the first end of box and the second outer box, the first end of the first end and the second outer box of first outer box are hinged；It is described The second end of first outer box connects first ladder, and the second end of second outer box is fixedly connected with second ladder Son；The ladder joint further includes：Bracing wire, connects the second end of second locking teeth, and the bracing wire is located at second outer box In and stretch out the second ends of second outer box；The bracing wire connects the second end of second locking teeth by being threaded through in the column spring.
- 2. ladder joint as described in claim 1, which is characterized in that being arranged on second hinge shaft makes second locking teeth The torsional spring of reply.
- 3. ladder joint as described in claim 1, which is characterized in that be additionally provided with what is be oriented to the bracing wire in second outer box Guider.
- 4. ladder joint as described in claim 1, which is characterized in that the semi-circular gear is equipped with 6 to 90 teeth, and described second Locking teeth is rack, and the number of teeth of the rack is 3 to 6.
- 5. ladder joint as described in claim 1, which is characterized in that the semi-circular gear is fixed by more than two rivets In first outer box.
- 6. ladder joint as described in claim 1, which is characterized in that first outer box are to divide up and down with second outer box Body formula structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026893.0A CN106677695B (en) | 2017-01-15 | 2017-01-15 | Terraced joint |
| PCT/CN2018/072180 WO2018130166A1 (en) | 2017-01-15 | 2018-01-11 | Folding stepladder |
| PCT/CN2018/072183 WO2018130167A1 (en) | 2017-01-15 | 2018-01-11 | Stepladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026893.0A CN106677695B (en) | 2017-01-15 | 2017-01-15 | Terraced joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106677695A CN106677695A (en) | 2017-05-17 |
| CN106677695B true CN106677695B (en) | 2018-07-06 |
Family
ID=58858861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710026893.0A Expired - Fee Related CN106677695B (en) | 2017-01-15 | 2017-01-15 | Terraced joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677695B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869305B (en) * | 2016-09-26 | 2020-10-13 | 李南仁 | Vehicle-mounted and maintenance-mounted insulated folding ladder device |
| WO2018130166A1 (en) * | 2017-01-15 | 2018-07-19 | 黄崇华 | Folding stepladder |
| CN110319111B (en) * | 2019-08-09 | 2023-05-16 | 福州大学 | Bolt type multi-clamping hinge mechanism and working method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1654888B2 (en) * | 1967-07-06 | 1976-07-29 | Bahmüller, Wilhelm, 7067 Plüderhausen | FOLDING MULTI-PURPOSE LADDER |
| SE390323B (en) * | 1969-07-30 | 1976-12-13 | H Hoffmann | FOPABLE UNIVERSAL LADDER |
| US4425983A (en) * | 1981-10-09 | 1984-01-17 | Reinhard Cheyenne A | Folding fire escape ladder |
| CN2161713Y (en) * | 1993-02-15 | 1994-04-13 | 庄清宝 | Structure of folding ladder |
| CN206448766U (en) * | 2017-01-15 | 2017-08-29 | 黄崇华 | Terraced joint |
-
2017
- 2017-01-15 CN CN201710026893.0A patent/CN106677695B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106677695A (en) | 2017-05-17 |
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Granted publication date: 20180706 |