CN214576696U - Conveniently folded herringbone ladder - Google Patents
Conveniently folded herringbone ladder Download PDFInfo
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- CN214576696U CN214576696U CN202023083374.4U CN202023083374U CN214576696U CN 214576696 U CN214576696 U CN 214576696U CN 202023083374 U CN202023083374 U CN 202023083374U CN 214576696 U CN214576696 U CN 214576696U
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Abstract
A conveniently folded herringbone ladder comprises a first ladder leg, a second ladder leg, a tool disc and a connecting rod mechanism, wherein the upper end of the first ladder leg is rotatably connected with the upper end of the second ladder leg, an unfolded state and a folded state are realized in the rotating process, and the tool disc is rotatably connected to the second ladder leg; the linkage mechanism comprises a linkage rod, a first swing rod and a second swing rod, one end of the first swing rod is rotatably connected to the first ladder leg, one end of the second swing rod is rotatably connected to the second ladder leg, the other end of the first swing rod and the other end of the second swing rod are both hinged to the same point at the lower end of the linkage rod, and the upper end of the linkage rod is rotatably connected with the tool disc; in the unfolding process, the tool disc rotates towards the horizontal state and drives the linkage rod to move upwards, and the linkage rod drives the first swing rod and the second swing rod to be unfolded until the herringbone ladder is in the unfolding state; in the folding process, the tool disc rotates towards the second ladder leg and drives the linkage rod to move downwards, and the linkage rod drives the first swing rod and the second swing rod to approach each other until the herringbone ladder is folded.
Description
Technical Field
The utility model relates to a double ladder field, concretely relates to convenient folding double ladder with can accomodate instrument dish.
Background
The existing herringbone ladder is usually provided with a tool disc, and the tool disc can be stored in the herringbone ladder under the folding state of the herringbone ladder; under the double ladder expansion state, the operator can emit the instrument dish for place some instruments temporarily, take when being convenient for ascend a height.
However, in the using process, the ladder needs to be unfolded firstly, and then the tool disc needs to be put down; when the folding ladder is folded, the ladder needs to be folded first, and then the tool disc needs to be retracted, so that the operation is troublesome, and the use is inconvenient.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a folding convenient double ladder, for reaching above-mentioned purpose, the utility model discloses a technical scheme be:
a conveniently folded herringbone ladder comprises a first ladder leg, a second ladder leg and a tool disc, wherein the upper end of the first ladder leg is rotatably connected with the upper end of the second ladder leg, the herringbone ladder has an unfolded state and a folded state in the rotating process, and the tool disc is rotatably connected relative to the second ladder leg; in the unfolded state, the tool tray is horizontally placed; in the folding process, one end of the tool disc close to the first ladder leg rotates downwards, and the other end of the tool disc far away from the first ladder leg rotates upwards until the tool disc rotates into the second ladder leg;
the conveniently folded herringbone ladder also comprises a connecting rod mechanism;
the linkage mechanism comprises a linkage rod, a first swing rod and a second swing rod, one end of the first swing rod is rotatably connected to the first ladder leg, one end of the second swing rod is rotatably connected to the second ladder leg, the other end of the first swing rod and the other end of the second swing rod are both hinged to the same point at the lower end of the linkage rod, and the upper end of the linkage rod is rotatably connected with one end, close to the first ladder leg, of the tool disc;
in the unfolding process, the tool disc rotates towards the horizontal state, the linkage rod moves upwards to drive the first swing rod and the second swing rod to be unfolded, and when the opening angles of the first swing rod and the second swing rod are flat angles, the herringbone ladder is in the unfolding state;
in the folding process, the tool disc rotates towards the second ladder leg, the linkage rod moves downwards to drive the first swing rod and the second swing rod to approach each other, and when the opening angles of the first swing rod and the second swing rod are zero, the first ladder leg and the second ladder leg form a folding state.
Further, the link mechanism further comprises a driving rod;
the rod body of the driving rod is rotatably connected to the second ladder leg, one end, far away from the first ladder leg, of the driving rod is fixedly connected with the tool disc in the connected state, and one end, close to the first ladder leg, of the driving rod is hinged to the upper end of the linkage rod.
Furthermore, a limiting structure is arranged on the first ladder leg;
when the first ladder leg and the second ladder leg are in the unfolded state, one end, close to the first ladder leg, of the driving rod swings upwards until being limited by the limiting structure, and at the moment, the tool disc fixedly connected to the driving rod is in a horizontally placed state.
Furthermore, a pedal is arranged on the first ladder leg, wherein a pedal with the same height as the tool tray in the horizontal state is the limiting structure.
The relevant content in the above technical solution is explained as follows:
1. in the scheme, in the folding process, one end of the tool disc close to the first ladder leg rotates downwards, and the other end of the tool disc far away from the first ladder leg rotates upwards until the tool disc rotates into the second ladder leg;
the end of the tool disk close to the first ladder leg rotates downwards instead of upwards, because when the operator uses the tool disk, the tool disk is placed on the outer side of the tool disk relative to the herringbone ladder, namely the end of the tool disk far away from the first ladder leg, so that in the using state, the end of the tool disk far away from the first ladder leg is subjected to downward force, but because in the unfolding state, the tool disk is in a horizontal state, the end of the tool disk close to the first ladder leg cannot continue to rotate upwards, so that the tool disk still keeps horizontal;
preferably, in the unfolded state, one end of the tool tray, which is close to the first ladder leg, is limited by a pedal with the same height as the first ladder leg and the tool tray, so that the tool tray can be stably kept horizontal in the use state;
the limiting tool can be a pedal with the height equal to that of the tool tray in a horizontal state, and can also be other limiting structures arranged on the first ladder leg or the second ladder leg, such as a limiting rivet or a limiting boss and the like.
2. In the scheme, when an operator folds the herringbone ladder, the operator can directly lift one end of the tool disc away from the first ladder leg upwards to enable the tool disc to drive the linkage rod to move downwards, the lower end of the linkage rod drives the first swing rod and the second swing rod to swing simultaneously in the movement process of the linkage rod until the opening angles of the first swing rod and the second swing rod are zero, and the first swing rod and the second swing rod drive the first ladder leg and the second ladder leg to approach each other in the swinging process until the folding state is formed;
the tool disc is rotatably connected relative to the second ladder leg, when the tool disc is long enough, the tool disc can be directly and rotatably connected with the second ladder leg, and the upper end of the linkage rod is rotatably connected with one end, close to the first ladder leg, of the tool disc; when the length of the tool disc is not enough, the driving rod can be rotationally connected with the first ladder leg, the tool disc is fixed on the driving rod, the tool disc and the driving rod synchronously rotate, the driving rod drives the linkage rod to rotate, and then the first swing rod and the second swing rod are driven to be away from or close to each other.
The working principle of the utility model is as follows:
a conveniently folded herringbone ladder comprises a first ladder leg, a second ladder leg, a tool disc and a connecting rod mechanism, wherein the upper end of the first ladder leg is rotatably connected with the upper end of the second ladder leg, an unfolded state and a folded state are realized in the rotating process, and the tool disc is rotatably connected to the second ladder leg; the linkage mechanism comprises a linkage rod, a first swing rod and a second swing rod, one end of the first swing rod is rotatably connected to the first ladder leg, one end of the second swing rod is rotatably connected to the second ladder leg, the other end of the first swing rod and the other end of the second swing rod are both hinged to the same point at the lower end of the linkage rod, and the upper end of the linkage rod is rotatably connected with the tool disc; in the unfolding process, the tool disc rotates towards the horizontal state and drives the linkage rod to move upwards, and the linkage rod drives the first swing rod and the second swing rod to be unfolded until the herringbone ladder is in the unfolding state; in the folding process, the tool disc rotates towards the second ladder leg and drives the linkage rod to move downwards, and the linkage rod drives the first swing rod and the second swing rod to approach each other until the herringbone ladder is folded.
The utility model has the advantages as follows:
firstly, convenient to use, when folding double ladder, need not to carry out unnecessary operation, can realize folding of whole double ladder through rotating the instrument dish.
Secondly, the structure is simple and the manufacturing cost is low.
Drawings
Fig. 1 is a perspective view of a herringbone ladder in an unfolded state when a linkage rod is connected to a driving rod in the embodiment of the present invention;
fig. 2 is a perspective view of the herringbone ladder during the folding process when the linkage rod is connected to the driving rod in the embodiment of the present invention;
fig. 3 is a perspective view of the herringbone ladder in a folded state when the linkage rod is connected to the driving rod in the embodiment of the present invention;
fig. 4 is a perspective view of the herringbone ladder in a folded state when the linkage rod is connected to the tool tray in the embodiment of the present invention.
In the above drawings: 1. a first ladder leg; 2. a second ladder leg; 3. a tool tray; 4. a linkage rod; 5. a first swing link; 6. a second swing link; 7. a driving lever; 8. a limiting structure.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.
The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.
As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
The terms "front", "rear", "upper", "lower", "left" and "right" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the specific direction of the protective reaction and the practical implementation of the present invention.
Example (b): referring to fig. 1 to 4, a conveniently folded herringbone ladder comprises a first ladder leg 1, a second ladder leg 2, a tool disc 3 and a link mechanism;
the upper end of the first ladder leg 1 is rotatably connected with the upper end of the second ladder leg 2, and the first ladder leg 1 is provided with a pedal in an unfolding state and a folding state in the rotating process;
the connecting rod mechanism comprises a driving rod 7, a linkage rod 4, a first swing rod 5 and a second swing rod 6, and is arranged between the first ladder leg 1 and the second ladder leg 2 and positioned at the left side and the right side of the first ladder leg 1 and the second ladder leg 2;
the rod body of the driving rod 7 is rotatably connected to the second ladder leg 2, one end, far away from the first ladder leg 1, of the driving rod 7 is fixedly connected with the tool disc 3 in a connected state, and one end, close to the first ladder leg 1, of the driving rod 7 swings relative to the first ladder leg 1 in the rotating process;
when the first ladder leg 1 and the second ladder leg 2 are in an unfolded state, the driving rod 7 is limited by the limiting structure 8 on the first ladder leg 1 in the rotating process and cannot rotate continuously after being limited, the tool tray 3 fixedly connected to the driving rod 7 is in a horizontal placement state, and the limiting structure 8 is a pedal with the same height as the tool tray 3 in the horizontal state;
one end of the first swing rod 5 is rotatably connected to the first ladder leg 1, one end of the second swing rod 6 is rotatably connected to the second ladder leg 2, the other end of the first swing rod 5 and the other end of the second swing rod 6 are both hinged to the same point at the lower end of the linkage rod 4, and the upper end of the linkage rod 4 is hinged to one end, close to the first ladder leg 1, of the driving rod 7;
in the folding process, an operator lifts one end of the tool tray 3 away from the first ladder leg 1 upwards, the tool tray 3 drives the driving rod 7 to rotate, in the rotating process of the driving rod 7, one end of the driving rod, which is close to the first ladder leg 1, drives the linkage rod 4 to move downwards, in the moving process of the linkage rod 4, the lower end of the linkage rod drives the first swing rod 5 and the second swing rod 6 to swing until the opening angles of the first swing rod 5 and the second swing rod 6 are zero, and the first swing rod 5 and the second swing rod 6 drive the first ladder leg 1 and the second ladder leg 2 to be close to each other in the swinging process until the folding state is formed;
in the unfolding process, an operator rotates the tool disc 3 downwards, the tool disc 3 drives the driving rod 7 to rotate, in the rotating process of the driving rod 7, one end, close to the first ladder leg 1, of the driving rod drives the linkage rod 4 to move upwards, in the moving process of the linkage rod 4, the lower end of the linkage rod drives the first swing rod 5 and the second swing rod 6 to swing until the opening angles of the first swing rod 5 and the second swing rod 6 are flat angles, and the first swing rod 5 and the second swing rod 6 drive the first ladder leg 1 and the second ladder leg 2 to be away from each other in the swinging process until the unfolding state is formed.
Other embodiments and structural changes of the present invention are described below as follows:
1. in the above embodiment, the tool tray 3 rotates to drive the driving rod 7 to rotate, and the driving rod 7 drives the linkage rod 4 to move, so as to drive the first swing rod 5 and the second swing rod 6 to be relatively close to or relatively far away from each other, and it is also possible to directly drive the driving rod 7 to move through the tool tray 3 as shown in fig. 4, and such a structure should be included in the present invention, which can be understood and accepted by those skilled in the art.
2. In the above embodiments, the limiting structure 8 is a pedal having a height equal to that of the tool tray 3 in a horizontal state, and may also be a rivet or boss structure on the first ladder leg 1, as long as the structure can limit the driving rod 7 so that it cannot rotate upwards, which is understood and accepted by those skilled in the art.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides a folding convenient double ladder which characterized in that:
the tool plate comprises a first ladder leg (1), a second ladder leg (2) and a tool plate (3), wherein the upper end of the first ladder leg (1) is rotatably connected with the upper end of the second ladder leg (2), an unfolding state and a folding state are realized in the rotating process, and the tool plate (3) is rotatably connected relative to the second ladder leg (2); in the unfolded state, the tool tray (3) is horizontally placed; in the folding process, one end of the tool disc (3) close to the first ladder leg (1) rotates downwards, and the other end of the tool disc far away from the first ladder leg (1) rotates upwards until the tool disc rotates into the second ladder leg (2);
the conveniently folded herringbone ladder also comprises a connecting rod mechanism;
the linkage mechanism comprises a linkage rod (4), a first swing rod (5) and a second swing rod (6), one end of the first swing rod (5) is rotatably connected to the first ladder leg (1), one end of the second swing rod (6) is rotatably connected to the second ladder leg (2), the other end of the first swing rod (5) and the other end of the second swing rod (6) are both hinged to the same point at the lower end of the linkage rod (4), and the upper end of the linkage rod (4) is rotatably connected with one end, close to the first ladder leg (1), of the tool disc (3);
in the unfolding process, the tool disc (3) rotates towards the horizontal state, the linkage rod (4) moves upwards to drive the first swing rod (5) and the second swing rod (6) to be unfolded, and when the opening angles of the first swing rod (5) and the second swing rod (6) are flat angles, the herringbone ladder is in the unfolding state;
in the folding process, the tool disc (3) rotates towards the second ladder leg (2), the linkage rod (4) moves downwards to drive the first swing rod (5) and the second swing rod (6) to be close to each other, and when the opening angles of the first swing rod (5) and the second swing rod (6) are zero, the first ladder leg (1) and the second ladder leg (2) form a folding state.
2. A conveniently folded catwalk according to claim 1, wherein: the link mechanism further comprises a driving rod (7);
the rod body of active rod (7) rotates to be connected on second ladder leg (2), and the one end and tool disc (3) fixed connection of first ladder leg (1) are kept away from in active rod (7) under the connected state, and the one end that active rod (7) is close to first ladder leg (1) is articulated with trace (4) upper end.
3. A conveniently folded catwalk according to claim 2, wherein: the first ladder leg (1) is provided with a limiting structure (8);
when the driving rod (7) rotates, one end, close to the first ladder leg (1), of the driving rod (7) swings up and down relative to the first ladder leg (1), when the first ladder leg (1) and the second ladder leg (2) are in an unfolded state, one end, close to the first ladder leg (1), of the driving rod (7) swings upwards until being limited by the limiting structure (8), and at the moment, the tool disc (3) fixedly connected to the driving rod (7) is in a horizontally placed state.
4. A conveniently folded catwalk according to claim 3, wherein: the first ladder leg (1) is provided with a pedal, wherein the pedal which is equal to the height of the tool plate (3) in the horizontal state is the limiting structure (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023083374.4U CN214576696U (en) | 2020-12-18 | 2020-12-18 | Conveniently folded herringbone ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023083374.4U CN214576696U (en) | 2020-12-18 | 2020-12-18 | Conveniently folded herringbone ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214576696U true CN214576696U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023083374.4U Active CN214576696U (en) | 2020-12-18 | 2020-12-18 | Conveniently folded herringbone ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214576696U (en) |
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2020
- 2020-12-18 CN CN202023083374.4U patent/CN214576696U/en active Active
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