CN208310682U - A kind of ladder collapses joint - Google Patents
A kind of ladder collapses joint Download PDFInfo
- Publication number
- CN208310682U CN208310682U CN201820908356.9U CN201820908356U CN208310682U CN 208310682 U CN208310682 U CN 208310682U CN 201820908356 U CN201820908356 U CN 201820908356U CN 208310682 U CN208310682 U CN 208310682U
- Authority
- CN
- China
- Prior art keywords
- swing arm
- joint
- ladder
- terraced frame
- buckle
- 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
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Abstract
The utility model discloses a kind of ladder collapses joints, overcome the problems, such as that ladder collapses joint will can not limit the expanded angle of terraced frame in the prior art during the expansion of both ends ladder frame, it includes turning joint, the both ends of turning joint are respectively used to connect terraced frame, turning joint can drive the terraced frame at both ends is opposite to be unfolded or close up, the first swing arm and the second swing arm are respectively arranged in turning joint, when turning joint drives the terraced frame expansion at both ends, turning joint drives the first swing arm to close up to the second swing arm, when the first swing arm and the second swing arm are close together, the terraced frame at the first swing arm and the second swing arm limitation both ends continues to be unfolded, therefore the structure of the first swing arm and the second swing arm limits the expanded angle of terraced frame and avoids the safety accident for occurring crushing when in use, and use ladder first swing arm and second after deployment of the utility model Swing arm is close together, and ladder is placed on the floor, and ladder can be used directly.
Description
Technical field
The utility model belongs to the accessory of ladder, refers in particular to a kind of ladder collapses joint.
Background technique
In the prior art, double ladder includes ladder collapses joint and terraced frame, and the both ends in ladder collapses joint connect terraced frame, ladder
The terraced frame at both ends can be folded or be unfolded by sub- folding joint.
In the prior art, ladder collapses joint includes being pivotally connected relatively turnable left flap and right hinge
Plate, the outer end of left flap can connect a terraced frame, and the outer end of right flap can connect another terraced frame, by rotating left flap,
To drive the opposite expansion of two terraced frames or fold, on left flap can also radially on offer spacing edge-cut,
It is provided with positioning device on right flap, when left flap turns to positioning device alignment spacing edge-cut, positioning device can be with
It is stuck in spacing edge-cut, so that left flap and right flap are mutually locked, lock convenient for two terraced frames, conveniently makes at an angle
User ascends a height.
But ladder collapses joint in the prior art is not perfect, in the process that both ends ladder frame is unfolded in ladder collapses joint
In can not limit the expanded angle of terraced frame, therefore it is excessive during expansion to there is a problem of that terraced frame is unfolded, and existing will use
The danger that person crushes.
Utility model content
In order to overcome the deficiencies of the prior art and there are the problem of, the utility model provide it is a kind of use safe, expanded angle
Reasonable ladder collapses joint.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of ladder collapses joint, including turning joint, the both ends of turning joint are respectively used to connect terraced frame, turning joint
It can drive the terraced frame at both ends is opposite to be unfolded or close up, the first swing arm and the second swing arm are respectively arranged in turning joint, works as work
When movable joint drives the terraced frame expansion at both ends, turning joint drives the first swing arm to close up to the second swing arm, when the first swing arm and the
Two swing arms are close together, and the terraced frame at the first swing arm and the second swing arm limitation both ends continues to be unfolded.
After adopting the above structure, the first swing arm and the second swing arm are driven while turning joint drives the terraced frame expansion at both ends
Close up, the first swing arm and the second swing arm are close together and can limit the terraced frame at both ends and continue to be unfolded, the first swing arm and the second pendulum
The swing arm expanded angle at the structure limitation both ends of arm, expanded angle is reasonable, therefore the structure of the first swing arm and the second swing arm avoids
Occur the safety accident crushed when in use, and uses ladder the first swing arm and second swing arm after deployment of the utility model
It is close together, ladder is placed on the floor, ladder can be used directly, and the utility model has easy to use, safe excellent
Point.
Preferably, the inner end of the first swing arm is provided with the first top plate, the inner end of the second swing arm is provided with corresponding to first
Second top plate of top plate, when the first swing arm and the second swing arm are close together, the first top plate is resisted against on the second top plate.
Preferably, the first swing arm and the second swing arm are closed when turning joint drives the terraced frame at both ends to be launched into "-" type
Hold together together.
After adopting the above structure, in use, the terraced frame at turning joint both ends is fully deployed, the terraced frame at both ends is in a word
Terraced frame is limited the state in vertical ladder by type, the first swing arm and the second swing arm, therefore the structure has the advantages that operation is convenient.
Preferably, turning joint includes left joint and right joint, hingedly right joint, the outer end in left joint are used in left joint
One of them terraced frame of connection, the outer end in right joint are fixed on left joint for connecting another terraced frame, the first swing arm, and second
Swing arm is fixed on right joint,
After adopting the above structure, when the terraced frame of left joint outer end is unfolded relative to the terraced frame of right joint outer end, left joint
It drives the first swing arm to close up to the second swing arm, when the first swing arm and the second swing arm are close together, limit left joint and continue
Drive corresponding terraced frame expansion.
Preferably, the first swing arm and the second swing arm are shell, the first swing arm covers on left joint, and the second swing arm covers
On right joint.
After adopting the above structure, the first swing arm and the second swing arm are respectively used to protect left joint and right joint, when in use,
Turning joint will be often subject to impact when being placed against the wall and setting, the structure of the first swing arm and the second swing arm avoid left joint and
Right joint is deformed.
Preferably, offering several card slots on left joint, it is fixedly installed bracket on right joint, slides setting on bracket
There is buckle, spring is provided between buckle and bracket, spring forces buckle, and joint is mobile to the left, when left joint is relative to right joint
It turns an angle, buckle fits in card slot.
After adopting the above structure, it buckles and the structure of card slot is used for left joint and right joint locking in multiple angles of spread
Degree, when in use, the terraced frame at both ends can have herringbone scalariform state and vertical ladder state, have and facilitate adjusting ladder height, can incite somebody to action
Ladder is placed against the wall the advantages of setting from being placed on the floor to be converted into.
Preferably, offering the first notch in the second swing arm, buckle is movably arranged in the first notch.
Preferably, offering the second notch corresponding to the first notch in the second swing arm, buckle is threaded through the second notch
On.
Using the above structure, the second notch is convenient for pushing buckle from the external of the second swing arm, to will buckle out of card slot
Abjection, convenient for closing up ladder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that apply on ladder terraced frame be in the structural schematic diagram of "-" type to the utility model；
Fig. 3 is one of configuration schematic diagram of the utility model；
Fig. 4 is the two of the configuration schematic diagram of the utility model；
Fig. 5 is the schematic diagram of the section structure of the turning joint of the utility model；
In figure: 1- turning joint, 2- ladder frame, the first swing arm of 3-, the second swing arm of 4-, the left joint 5-, the right joint 6-, 7- first
Top plate, the second top plate of 8-, 9- card slot, 10- bracket, 11- buckle, 12- spring, the first notch of 13-, the second notch of 14-, 15- pivot
Axis, 16- bolt rod.
Specific embodiment
For the ease of the understanding of those skilled in the art, in the following with reference to the drawings and specific embodiments to the utility model make into
The description of one step.
The ladder collapses joint of double ladder in the prior art, double ladder will can not limit during the expansion of both ends ladder frame
The expanded angle of terraced frame, therefore it is excessive during expansion to there is a problem of that terraced frame is unfolded, and exists and crushes the hand of user
Danger.
Therefore, referring to figs. 1 to 5, the utility model provides a kind of ladder collapses joint, including turning joint 1, living
The both ends of movable joint 1 are respectively used to connect terraced frame 2, and turning joint 1 can drive the terraced frame 2 at both ends is opposite to be unfolded or close up, living
The first swing arm 3 and the second swing arm 4 are respectively arranged on movable joint 1, when turning joint 1 drives the terraced frame 2 at both ends to be unfolded, activity
Joint 1 drives the first swing arm 3 to close up to the second swing arm 4, when the first swing arm 3 and the second swing arm 4 are close together, the first swing arm 3
Continue to be unfolded with the terraced frame 2 at the second swing arm 4 limitation both ends.
Turning joint 1 drives the terraced frame 2 at both ends to drive the first swing arm 3 and the second swing arm 4 to close up while expansion, the first pendulum
Arm 3 and the second swing arm 4 are close together and can limit the terraced frame 2 at both ends and continue to be unfolded, the knot of the first swing arm 3 and the second swing arm 4
Structure limits 2 expanded angle of swing arm at both ends, and expanded angle is reasonable, therefore the structure of the first swing arm 3 and the second swing arm 4 avoids making
There is the safety accident crushed in used time, and the first swing arm 3 and the second swing arm 4 are closed after deployment using the ladder of the utility model
Hold together together, ladder is placed on the floor, ladder can be used directly, therefore the utility model is with easy to use, safe
Advantage.
The inner end of first swing arm 3 is provided with the first top plate 7, the first top plate 7 and the first swing arm 3 can be it is integrally formed,
The inside of the first swing arm 3 is arranged in one top plate 7, therefore has the advantages that occupy little space, and the inner end of the second swing arm 4 is provided with pair
Should in the second top plate 8 of the first top plate 7, the second top plate 8 and the second swing arm 4 can be it is integrally formed, when the first swing arm 3 and second
Swing arm 4 is close together, and the first top plate 7 is resisted against on the second top plate 8.
Therefore, after the first swing arm 3 and the second swing arm 4 are closed up, limitation is abutted each other by the first top plate 7 and the second top plate 8
The terraced frame 2 at both ends continues to be unfolded, in addition can also be with buckling in the first swing arm 3, can be with corresponding buckle in the second swing arm 4
Card slot, when the first swing arm 3 and the second swing arm 4 are close together pass through buckle and card slot clamping realize limitation both ends terraced frame
2 continue to be unfolded；In addition, a magnet can be set in the first swing arm 3, can be set in the second swing arm 4 in corresponding and the first swing arm 3
Magnet, when the first swing arm 3 and the second swing arm 4 are close together, the first swing arm 3 and the second swing arm 4 are limited by two magnet suction
The terraced frame 2 at both ends processed continues to be unfolded.
When turning joint 1 drives the terraced frame 2 at both ends to be launched into "-" type, i.e., the utility model applies the ladder on ladder
In under yi shaped ladder state, the first swing arm 3 and the second swing arm 4 are close together, therefore ladder maximum unfolded state is yi shaped ladder shape
State, yi shaped ladder is the state often applied, therefore the structure of the first swing arm 3 and the second swing arm 4 facilitates ladder expansion in yi shaped ladder.
Turning joint 1 includes left joint 5 and right joint 6, the hinged right joint 6 in left joint 5, and left joint 5 and right joint 6 can be with
Hinged by pivot 15, the outer end in left joint 5 is for connecting one of them terraced frame 2, and the outer end in right joint 6 is for connecting
Another ladder frame 2, the first swing arm 3 are fixed on left joint 5, and the second swing arm 4 is fixed on right joint 6, when left joint 5
When the terraced frame 2 of outer end is unfolded relative to the terraced frame 2 of right 6 outer end of joint, left joint 5 drives the first swing arm 3 to close to the second swing arm 4
Hold together, when the first swing arm 3 and the second swing arm 4 are close together, limit left joint 5 and continue that both ends ladder frame 2 is driven to continue to be unfolded.
First swing arm 3 and the second swing arm 4 are shell, and the first 3 sets of swing arm is on left joint 5, and the second 4 sets of swing arm is in You Guan
On section 6, the first swing arm 3 and the second swing arm 4 are respectively used to protect left joint 5 and right joint 6, and when in use, turning joint 1 is being leaned on
Wall will be often subject to impact when placing, and the structure of the first swing arm 3 and the second swing arm 4 avoids left joint 5 and right joint 6 from producing
Change shape.
Several card slots 9 are offered on left joint 5, and bracket 10 is fixedly installed on right joint 6, slides and is provided on bracket 10
Buckle 11 is provided with spring 12 between buckle 11 and bracket 10, spring 12 forces buckle 11, and joint 5 is mobile to the left, on buckle 11
Bolt rod 16 can be fixedly installed, 12 sets of spring on bolt rod 16, bolt rod 16 can be worn over the mount 10, bolt rod 16
It can slide to drive 11 sliding of buckle over the mount 10.
When left joint 5 turns an angle relative to right joint 6, buckle 11 is fitted in card slot 9, thus terraced frame 2 can
In spread, two terraced frames 2 can be in multiple angle mutually lockings together, and multiple angles may include "-" type, use
When, when the terraced frame 2 at both ends is launched into "-" type state by left joint 5 and right joint 6, the structure of the first swing arm 3 and the second swing arm 4
Buckle 11 is facilitated to be fitted in card slot 9.
The first notch 13 is offered in second swing arm 4, buckle 11 is movably arranged in the first notch 13, the first notch 13
Shape can be it is L-shaped, buckle 11 out of card slot 9 deviate from after may be stuck on the first notch 13, facilitate left joint 5 and right joint 6
Mutual rotation.
Offer the second notch 14 corresponding to the first notch 13 in second swing arm 4, the shape of the second notch 14 can also be with
Be it is L-shaped, buckle 11 is threaded through on the second notch 14, and the second notch 14 is convenient for pushing buckle 11 from the external of the second swing arm 4, from
And deviate from buckle 11 out of card slot 9, convenient for closing up ladder.
Use principle:
Terraced frame 2 is installed at the both ends of turning joint 1, to be assembled into ladder, user is by left joint 5 relative to right joint
6 expansion, left joint 5 drive corresponding terraced frame 2 to be unfolded relative to the terraced frame 2 on right joint 6, and expanded angle is by the first swing arm 3
With the limitation of the second swing arm 4, when being deployed into certain angle, buckle 11 is fitted in card slot 9, thus ladder can be locked into it is multiple
Perhaps ladder can be placed against the wall and sets or be placed on the floor the double ladder of angle by yi shaped ladder user, can be in the case where being placed on the floor
Adjust the whole height of ladder.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (8)
1. a kind of ladder collapses joint, which is characterized in that including turning joint (1), the both ends of turning joint (1) are respectively used to connect
It connects terraced frame (2), turning joint (1) can drive the terraced frame (2) at both ends is opposite to be unfolded or close up, and turning joint is set respectively on (1)
It is equipped with the first swing arm (3) and the second swing arm (4), when turning joint (1) drives terraced frame (2) expansion at both ends, turning joint (1)
The first swing arm (3) is driven to close up to the second swing arm (4), when the first swing arm (3) and the second swing arm (4) are close together, first is put
Arm (3) and the terraced frame (2) at the second swing arm (4) limitation both ends continue to be unfolded.
2. a kind of ladder collapses joint according to claim 1, which is characterized in that the inner end of the first swing arm (3) is provided with
First top plate (7), the inner end of the second swing arm (4) is provided with the second top plate (8) corresponding to the first top plate (7), when the first swing arm
(3) it is close together with the second swing arm (4), the first top plate (7) is resisted against on the second top plate (8).
3. a kind of ladder collapses joint according to claim 1, which is characterized in that when turning joint (1) drives both ends
When terraced frame (2) is launched into "-" type, the first swing arm (3) and the second swing arm (4) are close together.
4. a kind of ladder collapses joint according to claim 1, which is characterized in that turning joint (1) includes left joint (5)
With right joint (6), the hinged right joint (6) of left joint (5), the outer end of left joint (5) is for connecting one of them terraced frame (2), the right side
The outer end in joint (6) is fixed on left joint (5) for connecting another terraced frame (2), the first swing arm (3), the second swing arm (4)
It is fixed on right joint (6).
5. a kind of ladder collapses joint according to claim 4, which is characterized in that the first swing arm (3) and the second swing arm (4)
It is shell, the first swing arm (3) covers on left joint (5), and the second swing arm (4) covers on right joint (6).
6. a kind of ladder collapses joint according to claim 4 or 5, which is characterized in that offered on left joint (5) several
Card slot (9) is fixedly installed bracket (10) on right joint (6), and sliding is provided with buckle (11) on bracket (10), buckle (11) and
It is provided between bracket (10) spring (12), spring (12) forces buckle (11) mobile to the left joint (5), when left joint (5) phase
It turns an angle for right joint (6), buckle (11) fits in card slot (9).
7. a kind of ladder collapses joint according to claim 6, which is characterized in that the second swing arm offers first on (4)
Notch (13), buckle (11) are movably arranged in the first notch (13).
8. a kind of ladder collapses joint according to claim 7, which is characterized in that the second swing arm offers correspondence on (4)
In the second notch (14) of the first notch (13), buckles (11) and be threaded through on the second notch (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820908356.9U CN208310682U (en) | 2018-06-12 | 2018-06-12 | A kind of ladder collapses joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820908356.9U CN208310682U (en) | 2018-06-12 | 2018-06-12 | A kind of ladder collapses joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208310682U true CN208310682U (en) | 2019-01-01 |
Family
ID=64706877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820908356.9U Expired - Fee Related CN208310682U (en) | 2018-06-12 | 2018-06-12 | A kind of ladder collapses joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208310682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319111A (en) * | 2019-08-09 | 2019-10-11 | 福州大学 | A kind of more detent linkages of bolt-type and its working method |
| WO2022156483A1 (en) * | 2021-01-25 | 2022-07-28 | 江苏宙际杰智能科技股份有限公司 | Multifunctional ladder joint |
-
2018
- 2018-06-12 CN CN201820908356.9U patent/CN208310682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319111A (en) * | 2019-08-09 | 2019-10-11 | 福州大学 | A kind of more detent linkages of bolt-type and its working method |
| WO2022156483A1 (en) * | 2021-01-25 | 2022-07-28 | 江苏宙际杰智能科技股份有限公司 | Multifunctional ladder joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20200612 |