CN217681536U - Folding ladder - Google Patents
Folding ladder Download PDFInfo
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- CN217681536U CN217681536U CN202122978535.4U CN202122978535U CN217681536U CN 217681536 U CN217681536 U CN 217681536U CN 202122978535 U CN202122978535 U CN 202122978535U CN 217681536 U CN217681536 U CN 217681536U
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- ladder
- bar
- rod
- folding
- pedal
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Abstract
The utility model provides a folding ladder, which comprises a left ladder rod, a right ladder rod and a pedal rod arranged between the left ladder rod and the right ladder rod; the left ladder bar and the right ladder bar are arranged in parallel; fixing holes are formed in the corresponding positions of the left ladder rod and the right ladder rod; through holes corresponding to the fixing holes are formed in the two ends of the pedal rod; the fixing holes are movably connected with the through holes through connecting shafts, and grooves with opposite positions are formed in the inner sides of the left ladder bar and the right ladder bar by taking the adjacent fixing holes as starting points; the left ladder bar and the right ladder bar are mutually attached to contain the step bars in the grooves corresponding to the left ladder bar and the right ladder bar. Adopt this kind of folding ladder to fold through the connecting axle between left ladder pole and right ladder pole and the foot bar, make the folding ladder have two kinds of states-folding and expansion, adopt the utility model discloses a folding ladder can reduce the volume of ladder greatly, is convenient for remove and use in restricted space, simple manufacture improves work efficiency.
Description
Technical Field
The utility model relates to a construction equipment technical field, more specifically relates to a folding ladder.
Background
A folding ladder is a civil engineering article and assists workers to fall down on a construction site, and is like a movable stair. The folding ladder is opened when in use and folded after use, thereby being convenient for transfer. The folding ladder is required to be firm and firm for working, is widely used for various civil engineering and decoration engineering, and has convenient and dual-purpose.
In the patent of chinese utility model with application number CN201320016538.2, a multifunctional portable folding ladder comprises at least two folding ladder units, wherein each folding ladder unit comprises two vertical rods and at least one pedal, and the two vertical rods are parallel to each other and fixedly connected with the pedals perpendicular to the vertical rods; the two folding ladder units are pivoted; the outer sides of the vertical rods of the folding ladder units are provided with slideways, the slideways of two adjacent folding ladder units are communicated, and each folding ladder unit also comprises a sliding shaft capable of sliding in the channel; a positioning groove is arranged in the slide way, and two positioning holes are formed in the positioning groove; and the sliding shaft is provided with a positioning screw which can slide on the positioning groove and can be fixed on the positioning hole.
The folding ladder unit further comprises a limiting plate, the limiting plate is fixed at a position perpendicular to the slide way and forms a U-shaped channel with the slide way in an enclosing mode, and the sliding shaft slides in the U-shaped channel. The folding ladder unit is pivoted through a hinge. The folding ladder comprises a ladder body and is characterized by further comprising a nylon belt, wherein the nylon belt is flexibly connected with two folding ladder units at the bottom.
Above-mentioned technical scheme provides a simple structure, folding effectual and can change the folding ladder of height, but, to the folding relation between two montants of folding ladder and the footboard not public to, do not solve the application of folding ladder in narrow and small space.
During the construction process, sometimes the operation is carried out in a narrow and limited space, when the volume of the ladder used for installing and maintaining the internal equipment is too large, the ladder cannot enter through a narrow manhole due to the limited space.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is to provide a folding ladder, which is portable and can be operated and used in a narrow space.
The utility model provides a folding ladder, which comprises a left ladder rod, a right ladder rod and a pedal rod arranged between the left ladder rod and the right ladder rod; wherein, the first and the second end of the pipe are connected with each other,
the left ladder bar and the right ladder bar are arranged in parallel;
fixing holes are formed in the corresponding positions of the left ladder rod and the right ladder rod;
through holes corresponding to the fixing holes are formed at the two ends of the pedal rod;
the fixing hole is movably connected with the through hole through a connecting shaft;
grooves with opposite positions are arranged on the inner sides of the left ladder bar and the right ladder bar by taking the adjacent fixing holes as starting points;
the left ladder bar and the right ladder bar are mutually attached to contain the step bars in the grooves corresponding to the left ladder bar and the right ladder bar. Further, it is preferable that the pedal lever is an irregular rectangular structure.
Further, it is preferable that the left ladder bar and the right ladder bar have the same length.
In addition, it is preferable that a hinge is provided at each of the end and the bottom of the left and right ladder bars.
In addition, it is preferable that a fixing member is provided to the engagement portion.
In addition, the fixing piece is preferably a snap device.
In addition, the folding ladder is preferably structured such that, when the folding ladder is in a folded state, the pedal rods and the left and right ladder rods form a preset angle therebetween;
when the folding ladder is in the unfolding state, the pedal rod is at a right angle with the left ladder rod and the right ladder rod.
Further, it is preferable that the preset angle is 20 ° to 45 °.
Further, it is preferable that a slip preventing member is provided on the pedal lever.
In addition, the preferable structure is that the movable connection part of the left ladder rod and the right ladder rod and the pedal rod is provided with a clamping piece.
From the above description, the utility model provides a folding ladder is folding through the connecting axle between left ladder pole and right ladder pole and the foot bar, makes folding ladder have two kinds of states-folding and expansion, adopts the utility model discloses a folding ladder can reduce the volume of ladder greatly, is convenient for remove and use in restricted space, makes simply, improves work efficiency.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings.
In the drawings:
fig. 1 is an expanded schematic view of a folding ladder according to an embodiment of the present invention;
fig. 2 is a schematic folding view of a folding ladder according to an embodiment of the present invention; and the number of the first and second groups,
fig. 3 is a schematic view of the pedal of the folding ladder according to the embodiment of the present invention.
Reference numerals:
1. a left ladder bar 2, a right ladder bar 3 and a pedal bar.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is an expanded schematic view of a folding ladder according to an embodiment of the present invention; fig. 2 is a schematic folding view of a folding ladder according to an embodiment of the present invention; and fig. 3 is a schematic view of the foot bar of the folding ladder according to the embodiment of the present invention.
As shown in fig. 1-3, the folding ladder of the present invention comprises a left ladder bar 1, a right ladder bar 2 and a tread bar 3 disposed between the left ladder bar 1 and the right ladder bar 2.
Wherein, left ladder bar 1 is unanimous with 2 lengths of right ladder bar, and, left ladder bar 1 and 2 parallel arrangement of right ladder bar, corresponding position is provided with the fixed orifices on left ladder bar 1 and right ladder bar 2, be provided with the through-hole corresponding with the fixed orifices at the both ends of step bar 3, fixed orifices and through-hole pass through connecting axle swing joint, make between step bar 3 and left ladder bar 1 and the 2 three of right ladder bar around the connecting axle free rotation, realize folding ladder's folding and the conversion of expansion state.
It should be noted that, the left ladder bar 1, the right ladder bar 2 and the foot bar 3 are made of wood, aluminum alloy section, carbon steel section steel and the like, but not limited to the above materials, and the material has the advantage of large bearing capacity, and the weight can be selected according to the situation to be lighter, so that the folding ladder has the advantages of being convenient to carry and the like.
The step bars 3 are irregular rectangular members, and the number of the step bars 3 is at least two, and in detail, the shape design as shown in fig. 3 is convenient for the folding ladder to be accommodated, and the step bars may be rectangular, oval, and the like.
It should be noted that, grooves with opposite positions are arranged on the inner sides of the left ladder bar 1 and the right ladder bar 2 by taking the adjacent fixing holes as starting points; left ladder bar 1 and right ladder bar 2 laminate each other in order to accept step bar 3 in the recess that left ladder bar 1 and right ladder bar 2 are relative, make folding ladder be convenient for accomodate and remove. It should be noted that the folding ladder has two different forms, namely a folding state and an unfolding state, and when the folding ladder is in the folding state, a preset angle is formed between the pedal rod 3 and the left ladder rod 1 as well as between the pedal rod 2 and the right ladder rod 2; when the folding ladder is in the unfolding state, the pedal rod 3, the left ladder rod 1 and the right ladder rod 1 are perpendicular to each other and form a right angle.
It should be specially noted that, in the folded state, the preset angle between the foot bar 3 and the left and right ladder bars 1, 2 is 20 ° -45 °, the longer the foot bar 3 is, the smaller the preset angle is, and specifically, when the preset angle is 30 °, the optimal positional relationship between the foot bar 3 and the left and right ladder bars 1, 2 is obtained.
It should be noted that, all cooperate at the tip of left ladder pole 1 and right ladder pole 2, bottom and be provided with the buckling parts, be provided with the mounting on the buckling parts, the mounting is buckle device, is convenient for fix left ladder pole 1 and right ladder pole 2, helps accomodating, the transportation of the folding ladder of being convenient for.
It should be noted that, the anti-slip member is arranged on the pedal rod 3, the anti-slip member is made of silica gel, the frictional resistance is large, preferably, the anti-slip member is provided with a strip-shaped protrusion, the shape of the protrusion includes wave shape, diamond shape and the like, certainly, the protrusion can also be a point-shaped protrusion, and in the process that the pedal rod 3 climbs up and down through the folding ladder, the frictional resistance around and around the pedal point is increased, so that the safety of climbing up and down of the operator is protected.
It should be noted that, the movable joints of the left ladder bar 1, the right ladder bar 2 and the step bar 3 are provided with the fastener, when the folding ladder is in the unfolding state, the fastener at the joint of the left end and the right end of the step bar 3 and the left ladder bar 1 and the right ladder bar 2 is opened, so as to ensure that the folding ladder is completely unfolded during the use of the operator, and the safety of the operator is protected for the second time.
It should be specially noted that, on the rod diameters of the fixed positions of the left ladder rod 1 and the right ladder rod 2, a rotating shaft can be further arranged, and the folding ladder is integrally folded through the rotation of the rotating shaft, so that the folding ladder is more convenient to store and move. The quantity of rotation axis can set up according to the folding size of demand to, in the position department of rotation axis, still need be provided with vertical fastener, ensure at the in-process that uses, the folding ladder keeps vertical state, and, the direction of two and more than two rotation axes that set up need be noticed relative setting, avoids appearing that folding direction is the same, the unable phenomenon of accomodating.
In a specific embodiment of the utility model, the left ladder bar 1 and the right ladder bar 2 are made of aluminum alloy sections with the length of 4060mm, the width of 80mm and the thickness of 20 mm; the step bar 3 arranged between the left ladder bar 1 and the right ladder bar 2 adopts an irregular parallelogram design, the step bar 3 adopts an aluminum alloy section with the length of 434mm, the width of 20mm and the thickness of 15mm, the arrangement interval of the step bar 3 is 450mm, the distance between the end parts of the left ladder bar 1 and the right ladder bar 2 and the step bar 3 is 500mm, and the distance between the bottom parts of the left ladder bar 1 and the right ladder bar 2 and the step bar 3 is 410mm.
Wherein, the distance between the two through holes arranged on the pedal lever 3 is 390mm; the diameters of the fixed holes and the through holes arranged on the left ladder bar 1 and the right ladder bar 2 are 10.5mm; the connecting shaft is a bolt shaft with the diameter of 10mm.
Use the utility model discloses a during folding ladder, at first open the mounting at fold condition's folding ladder upper and lower both ends, hold left terraced pole 1 and right terraced pole 2, exert oneself left terraced pole 1 below, it is rotatory through the connecting axle, make folding ladder open, be in on the coplanar until the bottom of left terraced pole 1 and the bottom of ground contact and right terraced pole 2.
Then, the locking pieces at both ends of the pedal lever 3 are opened to ensure that the pedal lever 3 is perpendicular to and fixed to the left and right ladder bars 1 and 2.
And finally, arranging the folding ladder in a position to be operated.
According to the above technical scheme, the utility model provides a folding ladder is folding through the connecting axle between left terraced pole and right terraced pole and the foot bar, makes folding ladder have two kinds of states-folding and expansion to guarantee the stability of expansion state through the card firmware that sets up on the foot bar, fix the folding ladder that is in fold condition through the mounting, guarantee that folding ladder can not scatter, be convenient for transport, remove, adopt the utility model discloses a folding ladder can reduce the volume of ladder greatly, is convenient for remove and use in restricted space, and simple manufacture improves work efficiency.
The folding ladder according to the invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the folding ladder of the present invention without departing from the scope of the invention. Therefore, the scope of the present invention should be determined by the content of the appended claims.
Claims (9)
1. A folding ladder is characterized by comprising a left ladder bar, a right ladder bar and a pedal bar arranged between the left ladder bar and the right ladder bar; wherein the content of the first and second substances,
the left ladder bar and the right ladder bar are arranged in parallel;
fixing holes are formed in the corresponding positions of the left ladder rod and the right ladder rod;
through holes corresponding to the fixing holes are formed at the two ends of the pedal rod;
the fixing hole is movably connected with the through hole through a connecting shaft;
grooves with opposite positions are arranged on the inner sides of the left ladder bar and the right ladder bar by taking the adjacent fixing holes as starting points;
the left ladder bar and the right ladder bar are mutually attached to contain the step bars in the grooves corresponding to the left ladder bar and the right ladder bar.
2. The attic ladder of claim 1,
the left ladder bar and the right ladder bar are consistent in length.
3. The attic ladder of claim 1,
the end parts and the bottoms of the left ladder rod and the right ladder rod are respectively provided with a buckling part in a matching way.
4. The attic ladder of claim 3,
the buckling part is provided with a fixing part.
5. The attic ladder of claim 4,
the fixing piece is a buckling device.
6. The attic ladder of claim 1,
when the folding ladder is in a folded state, a preset angle is formed between the pedal rod and the left ladder rod and between the pedal rod and the right ladder rod;
when the folding ladder is in the unfolding state, the pedal rod is at a right angle with the left ladder rod and the right ladder rod.
7. The attic ladder of claim 6,
the preset angle is 20-45 degrees.
8. The attic ladder of claim 1,
the pedal rod is provided with an anti-skid piece.
9. The attic ladder of claim 1,
and clamping pieces are arranged at the movable connection parts of the left ladder bar and the right ladder bar and the pedal bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978535.4U CN217681536U (en) | 2021-11-30 | 2021-11-30 | Folding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978535.4U CN217681536U (en) | 2021-11-30 | 2021-11-30 | Folding ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217681536U true CN217681536U (en) | 2022-10-28 |
Family
ID=83700831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122978535.4U Active CN217681536U (en) | 2021-11-30 | 2021-11-30 | Folding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217681536U (en) |
-
2021
- 2021-11-30 CN CN202122978535.4U patent/CN217681536U/en active Active
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