CN109750974B - Ladder - Google Patents
Ladder Download PDFInfo
- Publication number
- CN109750974B CN109750974B CN201910088701.8A CN201910088701A CN109750974B CN 109750974 B CN109750974 B CN 109750974B CN 201910088701 A CN201910088701 A CN 201910088701A CN 109750974 B CN109750974 B CN 109750974B
- Authority
- CN
- China
- Prior art keywords
- hole
- mounting
- ladder
- rods
- positioning
- 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.)
- Active
Links
Images
Landscapes
- Ladders (AREA)
Abstract
A ladder is provided. The method is characterized in that: the positioning piece is provided with a positioning shaft which simultaneously penetrates through the fourth mounting through hole and the second mounting through hole, and the other positioning shaft penetrates through the first position of the fifth mounting through hole; the positioning piece is provided with a positioning shaft which simultaneously penetrates through the fourth mounting through hole and the third mounting through hole, and the other positioning shaft penetrates through the second position of the fifth mounting through hole; the positioning piece is provided with a third position at which one positioning shaft penetrates through the first mounting through hole and the other positioning shaft penetrates through the third mounting through hole. The ladder has the advantages that the ladder can be changed and adjusted in different heights, angles and forms by adopting the scheme, and the ladder is wide in application range and good in practicability.
Description
Technical Field
The invention relates to a climbing tool, in particular to a ladder.
Background
Ladder, daily life apparatus for climb.
The ladder is divided into a single lifting ladder and a double ladder by the structure that two long thick rods are used as edges, the middle part of the ladder is transversely crossed with a cross rod suitable for climbing.
The single ladder is usually only used for ascending a height, and the double ladder is more suitable for high-position operation, but each existing ladder only has one form, cannot be changed, and is single in function.
Disclosure of Invention
In order to overcome the defects of the background art, the invention provides a ladder.
The technical scheme adopted by the invention is as follows: a ladder comprises a first ladder part, a second ladder part, a connecting piece, a supporting piece, a positioning piece and a limiting and adjusting drawstring; the first ladder part comprises two first supporting rods and a plurality of first ladder rods, the first ladder rods are uniformly distributed between the two first supporting rods at intervals, the upper ends of the two first supporting rods are connected with a first connecting shaft, and first mounting through holes are correspondingly formed in the positions, close to the upper ends, of the two first supporting rods; the second ladder part comprises two second support rods and a plurality of second ladder rods, the second ladder rods are uniformly distributed between the two second support rods at intervals, the upper ends of the two second support rods are connected with a second connecting shaft, a second mounting through hole is formed in the center of the second connecting shaft, and a third mounting through hole is correspondingly formed in the position, close to the lower end, of the two second support rods; one end of the connecting piece is connected with the first connecting shaft, and the other end of the connecting piece is connected with the second connecting shaft; the support piece comprises two third support rods and at least two connecting rods, the connecting rods are connected with the two third support rods, and the two third support rods are sequentially and correspondingly provided with a fourth mounting through hole and a fifth mounting through hole from top to bottom; the positioning piece comprises an installation plate and positioning shafts at two ends of the installation plate; the length of the first supporting rod and the length of the third supporting rod are larger than that of the second supporting rod, the central distance between the two positioning shafts, the central distance between the fourth mounting through hole and the fifth mounting through hole, and the central distance between the first mounting through hole and the third mounting through hole are the same when the first supporting rod and the second supporting rod are positioned on the same straight line, the positioning part is provided with a first position where one positioning shaft simultaneously penetrates through the fourth mounting through hole and the second mounting through hole, and the other positioning shaft penetrates through the fifth mounting through hole;
the positioning piece is provided with a positioning shaft which simultaneously penetrates through the fourth mounting through hole and the third mounting through hole, and the other positioning shaft penetrates through the second position of the fifth mounting through hole; the positioning piece is provided with a third position at which one positioning shaft penetrates through the first mounting through hole and the other positioning shaft penetrates through the third mounting through hole; the limiting adjusting pull belt comprises a belt body, one end of the belt body is fixedly connected with the connecting rod or the first step rod, the other end of the belt body bypasses the first step rod or the connecting rod and is provided with a clamping hook, and a plurality of buckles which can be correspondingly clamped with the clamping hook are evenly arranged on the belt body.
And a locking mechanism is arranged at the position of the third supporting rod corresponding to the fifth mounting through hole.
The locking mechanism comprises an annular boss, a locking rod and an elastic piece, the annular boss is fixed on the third supporting rod and coaxially arranged with the fifth installation through hole, the annular boss is provided with a through hole which is radially arranged, the locking rod is inserted into the through hole, the positioning shaft is provided with a positioning hole corresponding to the through hole, and the elastic piece drives the locking rod to be inserted into the positioning hole.
The end part of the locking rod is provided with a handle part, the elastic part adopts an elastic ring, and the elastic ring is sleeved outside the annular boss and the handle part.
The first step rod is identical to the first connecting shaft in structure, and the second step rod is identical to the second connecting shaft in structure.
The first mounting through hole and one of the first step rods are arranged coaxially, and the third mounting through hole and one of the second step rods are arranged coaxially.
When the positioning piece is located at the third position, a positioning shaft penetrates through the third mounting through hole and the fourth mounting through hole simultaneously.
The two third supporting rods are correspondingly provided with sixth mounting through holes, and the center distance between the sixth mounting through holes and the fourth mounting through holes is the same as that between the second mounting through holes and the third mounting through holes;
when the positioning piece is located at the third position, a positioning shaft penetrates through the sixth installation through hole and the third installation through hole simultaneously.
The invention has the beneficial effects that: by adopting the scheme, the ladder can be changed and adjusted in different heights, angles and forms, and has wide application range and good practicability.
Drawings
FIG. 1 is a schematic illustration of a first position of a ladder according to an embodiment of the present invention.
FIG. 2 is a schematic illustration of a second position of the ladder according to an embodiment of the present invention.
Figure 3 is a schematic view of the ladder of an embodiment of the present invention in a third position.
Figure 4 is a schematic illustration of a second version of the ladder of the present invention in a third position.
Figure 5 is a schematic view of a third version of the third position of the ladder of the present invention.
Fig. 6 is an enlarged schematic view of a portion a of fig. 1.
Fig. 7 is a schematic structural diagram of a first ladder portion according to an embodiment of the invention.
Fig. 8 is a schematic structural view of a second ladder portion according to an embodiment of the invention.
FIG. 9 is a schematic structural diagram of a supporting member according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a positioning element according to an embodiment of the invention.
Fig. 11 is a schematic structural view of a limit adjusting pull belt according to an embodiment of the invention.
Detailed Description
The embodiments of the invention will be further described with reference to the accompanying drawings in which:
as shown in the figure, the ladder comprises a first ladder part 1, a second ladder part 2, a connecting piece 3, a supporting piece 4, a positioning piece 5 and a limiting and adjusting pull belt 6.
The first ladder portion 1 comprises two first support rods 11 and a plurality of first ladder rods 12, the first ladder rods 12 are evenly distributed between the two first support rods 11 at intervals, the upper ends of the two first support rods 11 are connected with first connecting shafts 13, and first mounting through holes 14 are correspondingly formed in positions, close to the upper ends, of the two first support rods 11.
Wherein, the first step pole 12 is also cylindrical, and the structure is the same with the first connecting shaft 13, thereby reducing the component variety, facilitating the production and assembly, and the first mounting through hole 14 is arranged coaxially with one of the first step poles 12 near the upper portion.
The second ladder portion 2 comprises two second support rods 21 and a plurality of second ladder bars 22, the second ladder bars 22 are evenly distributed between the two second support rods 21 at intervals, the upper ends of the two second support rods 21 are connected with a second connecting shaft 23, a second mounting through hole 24 is formed in the center of the second connecting shaft 23, and a third mounting through hole 25 is correspondingly formed in the position, close to the lower end, of each of the two second support rods 21.
Wherein, the second step bar 22 is cylindrical, and the structure with the second connecting shaft 23 is the same, thereby can reduce the part kind, the production equipment of being convenient for, and the third installation through-hole 25 sets up with one of them second step bar 22 with the axle center moreover.
One end of the connecting piece 3 is connected with the first connecting shaft 13, the other end of the connecting piece is connected with the second connecting shaft 23, and the ends of the first ladder part 1 and the second ladder part 2 can rotate through the connecting piece 3.
The support member 4 includes two third support rods 41 and at least two connecting rods 42, the connecting rods 42 connect the two third support rods 41, and the two third support rods 41 are correspondingly provided with a fourth installation through hole 43, a sixth installation through hole 45 and a fifth installation through hole 44 from top to bottom in sequence.
The positioning member 5 comprises an installation plate 51 and positioning shafts 52 at two ends of the installation plate 51, the positioning shafts 52 correspond to the installation through holes and can be inserted into the installation through holes, and the positioning among the first ladder part 1, the second ladder part 2 and the support member 4 is realized.
The limiting adjusting pull belt 6 comprises a belt body 61, one end of the belt body 61 is fixedly connected with one of the first step rods 12, the other end of the belt body can bypass the connecting rod 42 and is provided with a clamping hook 62, and a plurality of clamping buckles 63 which can be correspondingly clamped with the clamping hooks 62 are evenly arranged on the belt body 61.
Of course, the strap 61 may also be fixedly connected to the connecting rod 42.
The lengths of the first support rod 11 and the third support rod 41 may be the same, the length of the second support rod 21 is slightly shorter, which may be about one third of the length of the first support rod 11, the center distance between the two positioning shafts 52, the center distance between the fourth mounting through hole 43 and the fifth mounting through hole 44, and the center distance between the first mounting through hole 14 and the third mounting through hole 25 when the first support rod 11 and the second support rod 21 are on the same straight line are the same, and the center distances between the sixth mounting through hole 45 and the fourth mounting through hole 43 are the same as the center distances between the second mounting through hole 24 and the third mounting through hole 25.
As shown in fig. 1, one positioning shaft of the positioning member 5 passes through the fourth mounting through hole 43 and the second mounting through hole 24, and the other positioning shaft passes through the fifth mounting through hole 44, and connects one of the first step bars 12 with the connecting bar 42 through the limit adjusting pull tape 6, thereby forming a standard herringbone ladder.
Meanwhile, the hooks 62 of the limiting adjusting pull belt 6 are inserted into different buckles 63, so that the length adjustment of the limiting adjusting pull belt 6 is realized, the angle between the first ladder part 1 and the supporting part 4 can be changed, and the angle adjustment is realized.
As shown in fig. 2, one positioning shaft of the positioning member 5 passes through the fourth mounting through hole 43 and the third mounting through hole 25, and the other positioning shaft passes through the second position of the fifth mounting through hole 44, and the first ladder bar 12 and the connecting bar 42 are connected by the limit adjusting pull tape 6, thereby forming a standard ladder.
Meanwhile, the hooks 62 of the limiting adjusting pull belt 6 are inserted into different buckles 63, so that the length adjustment of the limiting adjusting pull belt 6 is realized, the angle between the first ladder part 1 and the supporting part 4 can be changed, and the angle adjustment is realized.
As shown in fig. 3, one positioning shaft of the positioning member 5 passes through the first mounting through hole 14, the other positioning shaft passes through the third mounting through hole 25, and the supporting member 4 goes out, thereby forming a standard single ladder.
As shown in FIG. 4, one positioning shaft of the positioning member 5 passes through the first mounting through hole 14, the other positioning shaft simultaneously passes through the third mounting through hole 25 and the fourth mounting through hole 43, and one of the first ladder bars 12 and the connecting bar 42 are connected through the limit adjusting pull belt 6, so that a herringbone ladder with two legs of different lengths is formed.
Meanwhile, the hooks 62 of the limiting adjusting pull belt 6 are inserted into different buckles 63, so that the length adjustment of the limiting adjusting pull belt 6 is realized, the angle between the first ladder part 1 and the supporting part 4 can be changed, and the angle adjustment is realized.
As shown in FIG. 5, one positioning shaft of the positioning member 5 passes through the first mounting through hole 14, the other positioning shaft simultaneously passes through the sixth mounting through hole 45 and the third mounting through hole 25, and the limit adjusting pull belt 6 is used for connecting one of the first ladder bars 12 with the connecting bar 42, so that another herringbone ladder with two legs of different lengths is formed.
According to the specific use environment, the limit adjusting pull belt 6 is not needed, a single ladder structure is formed, and the supporting piece is matched and positioned with a fulcrum which may exist under the specific working condition.
As shown in fig. 6, a locking mechanism 7 is disposed at a position of the third support rod 41 corresponding to the fifth installation through hole 44.
The locking mechanism 7 comprises an annular boss 71, a locking rod 72 and an elastic piece 74, the annular boss 71 is fixed on the third support rod 41 and coaxially arranged with the fifth installation through hole 44, a through hole radially arranged is formed in the annular boss 71, the locking rod 72 is inserted into the through hole, a positioning hole 53 corresponding to the through hole is formed in the positioning shaft 52, and the elastic piece 73 drives the locking rod 72 to be inserted into the positioning hole 53.
The end of the locking rod 72 is provided with a handle 73, the elastic member 74 is an elastic ring, and the elastic ring is sleeved outside the annular boss 71 and the handle 73.
The operation is, overcome the elastic force of elastic component 74 through handle portion 73 and pull up locking lever 72, insert the location axle of setting element and formulate the installation through-hole, make its through-hole on locating hole 53 and the annular boss 71 to it, then the pine hand, locking lever 72 inserts in locating hole 53 under the elastic force effect of elastic component, realize location locking, make the setting element in various positions of difference through locking mechanism 7, can both obtain effectual anticreep locking effect, guarantee safe and reliable more when using.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.
Claims (8)
1. A ladder, characterized by: comprises a first ladder part (1), a second ladder part (2), a connecting piece (3), a supporting piece (4), a positioning piece (5) and a limiting and adjusting drawstring (6);
the first ladder part (1) comprises two first supporting rods (11) and a plurality of first ladder rods (12), the first ladder rods (12) are uniformly distributed between the two first supporting rods (11) at intervals, the upper ends of the two first supporting rods (11) are connected with first connecting shafts (13), and first mounting through holes (14) are correspondingly formed in the positions, close to the upper ends, of the two first supporting rods (11);
the second ladder part (2) comprises two second support rods (21) and a plurality of second ladder rods (22), the second ladder rods (22) are uniformly distributed between the two second support rods (21) at intervals, the upper ends of the two second support rods (21) are connected with a second connecting shaft (23), a second mounting through hole (24) is formed in the center of the second connecting shaft (23), and third mounting through holes (25) are correspondingly formed in the positions, close to the lower ends, of the two second support rods (21);
one end of the connecting piece (3) is connected with the first connecting shaft (13), and the other end of the connecting piece is connected with the second connecting shaft (23);
the supporting piece (4) comprises two third supporting rods (41) and at least two connecting rods (42), the connecting rods (42) are connected with the two third supporting rods (41), and the two third supporting rods (41) are sequentially and correspondingly provided with a fourth mounting through hole (43) and a fifth mounting through hole (44) from top to bottom;
the positioning piece (5) comprises a mounting plate (51) and positioning shafts (52) at two ends of the mounting plate (51);
the length of the first supporting rod (11) and the third supporting rod (41) is larger than that of the second supporting rod (21), the central distance between the two positioning shafts (52), the central distance between the fourth mounting through hole (43) and the fifth mounting through hole (44), and the central distance between the first mounting through hole (14) and the third mounting through hole (25) are the same when the first supporting rod (11) and the second supporting rod (21) are positioned on the same straight line,
the positioning piece (5) is provided with a first position at which one positioning shaft simultaneously penetrates through the fourth mounting through hole (43) and the second mounting through hole (24), and the other positioning shaft penetrates through the fifth mounting through hole (44);
the positioning piece (5) is provided with a second position at which one positioning shaft simultaneously penetrates through the fourth mounting through hole (43) and the third mounting through hole (25), and the other positioning shaft penetrates through the fifth mounting through hole (44);
the positioning piece (5) is provided with a third position at which one positioning shaft penetrates through the first mounting through hole (14) and the other positioning shaft penetrates through the third mounting through hole (25);
spacing regulation stretching strap (6) are including the area body (61), area body (61) one end and connecting rod (42) or first ladder pole (12) fixed connection, the other end is walked around first ladder pole (12) or connecting rod (42) and is equipped with pothook (62), evenly set up a plurality of buckles (63) that can correspond mutually and block with pothook (62) on the area body (61).
2. A ladder as set forth in claim 1 wherein: and a locking mechanism (7) is arranged at the position of the third supporting rod (41) corresponding to the fifth mounting through hole (44).
3. A ladder as set forth in claim 2 wherein: locking mechanism (7) are including annular boss (71), check lock lever (72), elastic component (74), annular boss (71) are fixed on third bracing piece (41) and are installed through-hole (44) coaxial setting with the fifth, be equipped with the through-hole of radial setting on annular boss (71), check lock lever (72) insert the through-hole, be equipped with locating hole (53) that correspond with the through-hole on location axle (52), elastic component (73) order about check lock lever (72) and insert in locating hole (53).
4. A ladder as set forth in claim 3 wherein: the locking lever (72) tip is equipped with handle portion (73), elastic component (74) adopt the elastic ring, the elastic ring cover is outside annular boss (71), handle portion (73).
5. A ladder as set forth in claim 1 wherein: the first step rod (12) and the first connecting shaft (13) are identical in structure, and the second step rod (22) and the second connecting shaft (23) are identical in structure.
6. A ladder as set forth in claim 5 wherein: the first mounting through hole (14) and one of the first step rods (12) are coaxially arranged, and the third mounting through hole (25) and one of the second step rods (22) are coaxially arranged.
7. A ladder as set forth in claim 1 wherein: when the positioning piece (5) is located at the third position, a positioning shaft penetrates through the third mounting through hole (25) and the fourth mounting through hole (43) simultaneously.
8. A ladder as set forth in claim 1 wherein: the two third supporting rods (41) are correspondingly provided with sixth mounting through holes (45), and the center distance between the sixth mounting through holes (45) and the fourth mounting through holes (43) is the same as that between the second mounting through holes (24) and the third mounting through holes (25);
when the positioning piece (5) is located at the third position, a positioning shaft penetrates through the sixth installation through hole (45) and the third installation through hole (25) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088701.8A CN109750974B (en) | 2019-01-30 | 2019-01-30 | Ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088701.8A CN109750974B (en) | 2019-01-30 | 2019-01-30 | Ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109750974A CN109750974A (en) | 2019-05-14 |
| CN109750974B true CN109750974B (en) | 2020-06-09 |
Family
ID=66407057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910088701.8A Active CN109750974B (en) | 2019-01-30 | 2019-01-30 | Ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109750974B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475971B (en) * | 2020-11-23 | 2022-02-01 | 宁夏大学 | Clamping device for on-site processing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2414321A1 (en) * | 1974-03-25 | 1975-10-09 | Benseler Manfred | Adjustable ladder with extending lengths - folds over at an angle, also forms step ladder |
| CN202064815U (en) * | 2011-04-20 | 2011-12-07 | 陈良喜 | Combination ladder |
| CN206636475U (en) * | 2016-11-22 | 2017-11-14 | 金乡县金地电力有限责任公司 | The power construction double ladders of Multifunctional repairing |
| CN206522097U (en) * | 2017-02-07 | 2017-09-26 | 广东高登铝业有限公司 | A kind of height-adjustable Multipurpose ladder |
| CN106988669B (en) * | 2017-05-03 | 2018-12-28 | 河北建设集团股份有限公司 | A kind of lifting eyelid retractor of decoration construction |
| CN207315204U (en) * | 2017-10-11 | 2018-05-04 | 浙江工业职业技术学院 | A kind of mobile ladder carried easy to disassemble |
-
2019
- 2019-01-30 CN CN201910088701.8A patent/CN109750974B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109750974A (en) | 2019-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20040195041A1 (en) | Fall restraint anchoring post | |
| CN108144211B (en) | Movable type anti-falling device that ascends a height | |
| CN109750974B (en) | Ladder | |
| CN107476582B (en) | A kind of method prefabricated components installation ancillary equipment and installed using the equipment | |
| KR101530887B1 (en) | Vertical installing device for movable mast and installing method thereoof | |
| CN202252699U (en) | Elevating rotary installation frame | |
| CA2424466C (en) | Fall restraint anchoring post | |
| CN215158828U (en) | Feeding device with adjustable angle | |
| CN217106025U (en) | Controllable over-and-under type dish detains scaffold | |
| CN211038041U (en) | Information communication base station convenient to climb | |
| US11885180B2 (en) | Modular ladder system | |
| CN220469769U (en) | Steel construction's suspension ladder | |
| CN220459850U (en) | Detachable auxiliary pull-up trainer | |
| CN212317893U (en) | A shelves round pin structure for drilling operation platform | |
| CN220870557U (en) | Connecting rod type camera maintenance mounting bracket free of ascending a height | |
| CN213313038U (en) | Anti-falling device for derrick installation | |
| CN219983747U (en) | Safety belt fastening device for overhead operation | |
| CN219529216U (en) | Adjustable supporting device for maintaining fan blade | |
| CN219069791U (en) | Grafting location steering seat | |
| CN216715111U (en) | Split type counterweight for rescue excavator | |
| CN216430715U (en) | Oil gas pipeline construction support | |
| CN211777154U (en) | Self-locking ladder head | |
| CN219587170U (en) | Construction ladder with protective structure for building engineering | |
| CN214091683U (en) | Rescue equipment fixing device | |
| CN215951252U (en) | Ceiling lamp with adjustable hanging height |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |