CN215718419U - Ladder climbing device for cotton picker - Google Patents
Ladder climbing device for cotton picker Download PDFInfo
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- CN215718419U CN215718419U CN202122274105.4U CN202122274105U CN215718419U CN 215718419 U CN215718419 U CN 215718419U CN 202122274105 U CN202122274105 U CN 202122274105U CN 215718419 U CN215718419 U CN 215718419U
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Abstract
The utility model discloses a ladder stand device for a cotton picker, relates to the technical field of cotton pickers, and mainly aims to facilitate operators to fix the folded state of the ladder stand and improve the stability of the ladder stand in the moving process of the cotton picker. The main technical scheme of the utility model is as follows: ladder climbing device for cotton picker, it includes: one end of the first parallel plate is rotatably connected to the second pedal support, the other end of the first parallel plate is rotatably connected to the first pedal support, the outer side of the other end of the first parallel plate is fixedly connected to the limiting rod, one end of the second parallel plate is rotatably connected to the lower end of the second pedal support, and the other end of the second parallel plate is rotatably connected to the middle of the first pedal support; the latch hook pole middle part is rotated and is connected in the platform, and the one end of latch hook pole is equipped with the latch hook for the hook gag lever post, the lower extreme of pedal pole rotate to be connected in the other end of latch hook pole, and the upper end of pedal pole is located the top of platform, and fixed pin sliding connection is in the axial spout, and the one end fixed connection of extension spring is in the lower extreme of pedal pole, other end fixed connection in fixed pin.
Description
Technical Field
The utility model relates to the technical field of cotton pickers, in particular to a ladder climbing device for a cotton picker.
Background
The cotton picker is used as a harvesting machine, the working environment is complex, and the cotton picker is easy to scrape and bump un-picked cotton plants if the machine body width exceeds the picking range without retracting the crawling ladder, so that the cotton is dropped, and the picking efficiency is reduced. Therefore, the ladder stand is folded and folded to be higher than the height of the cotton plant by the cotton picker with the machine body width exceeding the picking range. Although the foldable crawling ladder solves the problem that cotton plants are easy to scrape, when an operator stands on a cotton picker platform to fold and fold the crawling ladder, the folding state of the fixed crawling ladder is difficult, and the stability of the crawling ladder is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a ladder stand device for a cotton picker, and mainly aims to facilitate operators to fix the folded state of the ladder stand and improve the stability of the ladder stand in the moving process of the cotton picker.
In order to achieve the purpose, the utility model mainly provides the following technical scheme:
the utility model provides a ladder climbing device for a cotton picker, which comprises: the pedal locking mechanism comprises a first pedal bracket, a second pedal bracket, a parallel plate mechanism and a locking hook mechanism;
the upper end of the second pedal bracket is fixedly connected to the platform;
the parallel plate mechanism comprises a first parallel plate and a second parallel plate, one end of the first parallel plate is rotatably connected to the middle part of the second pedal support, the other end of the first parallel plate is rotatably connected to the upper end of the first pedal support, the outer side of the other end of the first parallel plate is fixedly connected to a limiting rod, one end of the second parallel plate is rotatably connected to the lower end of the second pedal support, and the other end of the second parallel plate is rotatably connected to the middle part of the first pedal support;
latch hook mechanism includes pedal pole, latch hook pole, extension spring and fixed pin, the middle part of latch hook pole is rotated and is connected in the platform, the one end of latch hook pole is equipped with the latch hook for the hook the gag lever post, the lower extreme of pedal pole rotate connect in the other end of latch hook pole, the middle part of pedal pole is equipped with the axial spout, the upper end of pedal pole is located the top of platform, fixed pin fixed connection in the platform, fixed pin sliding connection in the axial spout, the one end fixed connection of extension spring in the lower extreme of pedal pole, other end fixed connection in the fixed pin is used for driving pedal pole rebound.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, the ladder comprises a ladder handrail, and the ladder handrail is fixedly connected to the upper end of the first pedal support.
Optionally, the length of the ladder rail is greater than the length of the second step support for an operator on the platform to pull on the ladder rail.
Optionally, the pedal device further comprises a gas spring, the first pedal support located between the other end of the first parallel plate and the other end of the second parallel plate is a middle support, one end of the gas spring is rotatably connected to one end of the second parallel plate, and the other end of the gas spring is rotatably connected to the middle support.
Optionally, the lock hook device further comprises a handle fixedly connected to the other end side of the lock hook rod.
Optionally, the foldable bicycle further comprises an intermediate pedal, and the intermediate pedal is fixedly connected to the inner side of the first parallel plate.
Optionally, three first pedals are sequentially arranged on the first pedal support, and two second pedals are sequentially arranged on the second pedal support.
By the technical scheme, the utility model at least has the following advantages:
the upper end of the second pedal support is vertically fixed on a platform of the cotton picker through bolts, and the second pedal support, the first parallel plate, the first pedal support and the second parallel plate form a parallelogram.
When the ladder climbing device for the cotton picker is in a natural extension state, the first parallel plate and the second parallel plate naturally rotate downwards by taking the connecting position of the first parallel plate and the second parallel plate as a center, the first pedal support is lowered to the lowest end, and the second pedal support and the first pedal support are vertically arranged up and down, so that an operator can conveniently climb up a platform of the cotton picker.
When the cotton picker needs to be started to pick cotton, the ground auxiliary personnel can lift the first pedal support upwards in advance, and thus the first parallel plate and the second parallel plate rotate upwards by taking the connecting position of the first parallel plate and the second pedal support as a center respectively, so that the first pedal support is driven to move upwards. (because of the geometrical characteristics of the parallelogram, the opposite sides are parallel to each other, the second pedal support is always in a vertical state, and the first pedal support is also always in a vertical state in the process of moving up and down.) when the first parallel plate and the second parallel plate rotate upwards to the limit position, the limiting rod on the outer side of the other end of the first parallel plate is close to the locking hook. At the moment, an operator on the cotton picking platform steps on the upper end of the pedal rod, the pedal rod moves downwards for the length of the axial sliding chute, the tension spring extends to drive the other end of the lock hook rod to move downwards, so that the lock hook rod is driven to rotate, and the lock hook is driven to move upwards; when the limiting rod moves to the hooking range of the locking hook, an operator on the cotton picker platform does not step on the upper end of the pedal rod any more, the tension spring releases elastic potential energy to drive the pedal rod to move upwards for the length of the axial sliding groove, the locking hook moves downwards and hooks the limiting rod, the first parallel plate cannot rotate downwards any more, the second parallel plate cannot rotate downwards any more, and the first pedal support cannot move downwards any more. The first step support is thus limited to a position above the height of the cotton plant. Therefore, in the moving process of the cotton picker, the second pedal bracket can not scrape and touch cotton plants, and the cotton is prevented from falling off accidentally.
When the cotton picker runs for a certain distance and stops for a second time, an operator on the platform of the cotton picker can step on the upper end of the pedal rod again so that the lock hook is not hooked with the limiting rod any more, the first pedal support moves downwards again, and the operator can conveniently move downwards to the ground along the second pedal support and the first pedal support.
Drawings
Fig. 1 is a schematic view of a ladder climbing device for a cotton picker, which is provided by an embodiment of the utility model, being converted from a natural extending state to a folding state;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a front view of a ladder climbing device for a cotton picker according to an embodiment of the present invention.
Reference numerals in the drawings of the specification include: the pedal comprises a first pedal support 1, a second pedal support 2, a platform 3, a first parallel plate 4, a second parallel plate 5, a pedal rod 6, a locking hook rod 7, a tension spring 8, a fixing pin 9, a limiting rod 10, a limiting plate 11, a ladder handrail 12, an air spring 13, a pressure cylinder 1301, a piston rod 1302, a handle 14, a middle pedal 15, a first pedal 16, a second pedal 17 and an axial sliding groove 18.
Detailed Description
To further explain the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present application will be given with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3 and 4, one embodiment of the present invention provides a ladder climbing device for a cotton picker, which includes: the pedal locking mechanism comprises a first pedal bracket 1, a second pedal bracket 2, a parallel plate mechanism and a locking hook mechanism;
the upper end of the second pedal bracket 2 is fixedly connected with the platform 3;
the parallel plate mechanism comprises a first parallel plate 4 and a second parallel plate 5, one end of the first parallel plate 4 is rotatably connected to the middle of the second pedal support 2, the other end of the first parallel plate is rotatably connected to the upper end of the first pedal support 1, the outer side of the other end of the first parallel plate 4 is fixedly connected to a limiting rod 10, one end of the second parallel plate 5 is rotatably connected to the lower end of the second pedal support 2, and the other end of the second parallel plate 5 is rotatably connected to the middle of the first pedal support 1;
latch hook mechanism includes pedal lever 6, latch hook pole 7, extension spring 8 and fixed pin 9, the middle part of latch hook pole 7 is rotated and is connected in platform 3, the one end of latch hook pole 7 is equipped with the latch hook for the hook the gag lever post 10, the lower extreme of pedal lever 6 rotate connect in the other end of latch hook pole 7, the middle part of pedal lever 6 is equipped with axial spout 18, the upper end of pedal lever 6 is located the top of platform 3, 9 fixed pin fixed connection in platform 3, 9 sliding connection of fixed pin in axial spout 18, the one end fixed connection of extension spring 8 in the lower extreme of pedal lever 6, other end fixed connection in fixed pin 9 is used for driving pedal lever 6 rebound.
The working process of the ladder climbing device for the cotton picker is as follows:
the upper end of the second pedal bracket 2 is vertically fixed on a platform 3 of the cotton picker through bolts, and the second pedal bracket 2, the first parallel plate 4, the first pedal bracket 1 and the second parallel plate 5 form a parallelogram.
When the ladder climbing device for the cotton picker is in a natural extension state, the first parallel plate 4 and the second parallel plate 5 naturally rotate downwards by taking the connecting position of the first parallel plate and the second pedal support 2 as a center, the first pedal support 1 is lowered to the lowest end, and the second pedal support 2 and the first pedal support 1 are vertically arranged up and down, so that an operator can conveniently climb on the platform 3 of the cotton picker.
When cotton picker operation is carried out to needs start cotton picker, ground auxiliary personnel can upwards lift first footboard support 1 in advance, and first parallel plate 4 and second parallel plate 5 rotate upwards with its hookup location with second footboard support 2 as the center respectively like this to drive first footboard support 1 and upwards remove. (because of the geometrical characteristics of the parallelogram, the opposite sides are parallel to each other, the second pedal support 2 is always in a vertical state, and the first pedal support 1 is also always in a vertical state in the process of moving up and down.) when the first parallel plate 4 and the second parallel plate 5 rotate up to the limit position, the limiting rod 10 on the outer side of the other end of the first parallel plate 4 is close to the locking hook. At this time, an operator on the cotton picking platform 3 steps on the upper end of the pedal rod 6, the pedal rod 6 moves downwards by the length of the axial chute 18, the tension spring 8 extends to drive the other end of the lock hook rod 7 to move downwards, so that the lock hook rod 7 is driven to rotate, and the lock hook is driven to move upwards; when the limiting rod 10 moves to the hooking range of the locking hook, an operator on the cotton picker platform 3 cannot step on the upper end of the pedal rod 6 any more, the tension spring 8 releases elastic potential energy to drive the pedal rod 6 to move upwards by the length of the axial sliding groove 18, the locking hook moves downwards and hooks the limiting rod 10, the first parallel plate 4 cannot rotate downwards any more, the second parallel plate 5 cannot rotate downwards any more, and the first pedal support 1 cannot move downwards any more. The first step support 1 is thus limited to a position above the height of the cotton plant. Therefore, in the moving process of the cotton picker, the second pedal bracket 2 cannot scrape and touch cotton plants, and the cotton is prevented from falling off accidentally.
When the cotton picker runs for a certain distance and stops for a second time, an operator on the cotton picker platform 3 can step on the upper end of the pedal rod 6 again, the lock hook is not hooked with the limiting rod 10 any more, the first pedal support 1 moves downwards again, and the operator can conveniently move downwards to the ground along the second pedal support 2 and the first pedal support 1.
In the technical scheme of the utility model, when the cotton picker moves, the first parallel plate 4 and the second parallel plate 5 are not easy to rotate downwards automatically, so that the folding stability of the ladder stand is improved, and the first pedal bracket 1 is prevented from accidentally scraping cotton plants.
Specifically, the length of the first parallel plate 4 is equal to the length of the second parallel plate 5, and the first parallel plate 4 and the second parallel plate 5 are parallel to each other, so that the first pedal bracket 1, the first parallel plate 4, the second pedal bracket 2 and the second parallel plate 5 form a parallel rod mechanism, and the moving range of the first pedal 16 is reduced when the ladder is changed between the folding state and the natural extension state.
Specifically, the limiting plate 11 is fixedly mounted on the outer side of the second pedal support 2, when the ladder climbing device for the cotton picker is in a natural extension state, the first parallel plate 4 and the second parallel plate 5 rotate downwards to the limit position, the second parallel plate 5 abuts against the limiting plate 11, the first parallel plate 4 abuts against the second parallel plate 5, the stability of the second pedal support 2 and the first pedal support 1 in the vertical direction is improved, and therefore the vertical arrangement relationship between the second pedal support 2 and the first pedal support 1 is limited.
Specifically, the fixing pin 9 and the axial sliding groove 18 are matched with each other, so that the moving track of the pedal rod 6 is limited in the vertical direction, and the pedal rod 6 is prevented from swinging left and right to a large extent.
As shown in fig. 1, 2, 3 and 4, in a specific embodiment, the ladder bar 12 is further included, and the ladder bar 12 is fixedly connected to the upper end of the first step support 1.
In the present embodiment, specifically, the ladder rail 12 is fixedly attached to the first step bracket 1 at the upper end opposite side. When the ladder climbing device for the cotton picker is in a natural extension state, the ladder handrails 12 are parallel to the second pedal support 2, so that a person can conveniently hold the ladder handrails 12 to climb upwards, the opposite sides of the second pedal support 2 are prevented from being contacted by hands, and the hands are prevented from being extruded by a mechanical structure. When the ladder climbing device for a cotton picker is in a folded state, the ladder rail 12 moves upwards together with the first step support 1, and the ladder rail 12 extends to a certain height above the cotton picker platform 3 and can serve as a guardrail for the platform 3.
As shown in fig. 1, 2, 3 and 4, in a particular embodiment the ladder rail 12 has a length greater than the length of the second step support 2 for an operator on the platform 3 to pull on the ladder rail 12.
In this embodiment, in particular, when the ladder climbing device for a cotton picker is in a naturally extended state, the first step support 1 is located at the lowermost end of the movement locus thereof, and since the length of the ladder rail 12 is greater than that of the second step support 2, the upper end of the ladder rail 12 is located at the height position of the cotton picker platform 3. With the arrangement, when the operator on the cotton picker platform 3 steps on the pedal rod 6, the operator pulls the ladder handrail 12 by hand to drive the first pedal support 1 to move upwards, and the ground auxiliary operator is not needed to push the first pedal support 1 upwards.
As shown in fig. 1, 2, 3 and 4, in an embodiment, the pedal support device further includes a gas spring 13, the first pedal support 1 located between the other end of the first parallel plate 4 and the other end of the second parallel plate 5 is an intermediate support, one end of the gas spring 13 is rotatably connected to one end of the second parallel plate 5, and the other end of the gas spring 13 is rotatably connected to the intermediate support.
In the present embodiment, specifically, the gas spring 13 is composed of a pressure cylinder 1301, a piston rod 1302, and a piston. The end of the pressure cylinder 1301 is pivotally connected to one end of the second parallel plate 5 and the end of the piston rod 1302 is pivotally connected to the middle of the intermediate bracket.
When the ladder is wholly in an extension state, the middle bracket is overlapped with the second parallel plate 5, and the piston rod 1302 is compressed into the pressure cylinder 1301; when the ladder is changed from the extended state to the folded state, the middle support and the second parallel plate 5 are not overlapped, and the piston rod 1302 naturally extends out of the pressure cylinder 1301 due to the release of the inner pressure of the gas spring 13, so that the assistance is provided for the upward movement of the first pedal support 1, and the artificial thrust required for the upward movement of the first pedal support 1 is reduced.
As shown in fig. 1, 2, 3 and 4, in a specific embodiment, the latch further includes a handle 14, and the handle 14 is fixedly connected to the other end side of the latch hook lever 7.
In this embodiment, specifically, when the ladder climbing device for the cotton picker needs to be folded, the ground assistant staff can upwards lift the first pedal support 1 with one hand, the other hand pulls the handle 14 to be close to the second pedal support 2, the other end of the lock hook rod 7 is driven to downwards move, the lock hook at one end of the lock hook rod 7 upwards moves, so that the limiting rod 10 reaches the hook range of the lock hook, the other hand loosens the handle 14, the spring drives the lock hook rod 7 to return, the lock hook downwards moves, so that the lock hook limiting rod 10 is hooked, and the ladder climbing device is integrally folded. Through this embodiment, the folding of cat ladder can also be accomplished alone to the support personnel stand on ground and pack up.
As shown in fig. 1 and 4, in the specific embodiment, the foldable bicycle further comprises an intermediate pedal 15, and the intermediate pedal 15 is fixedly connected to the inner side of the first parallel plate 4.
In this embodiment, specifically, when the ladder stand is in a state of natural extension, the middle pedal 15 is located between the first pedal bracket 1 and the second pedal bracket 2, so that when a person climbs the ladder stand, the person needs to stride a large stride to climb from the first pedal bracket 1 to the second pedal bracket 2.
As shown in fig. 1 and 4, in the specific embodiment, the first pedal bracket 1 is sequentially provided with three first pedals 16, and the second pedal bracket 2 is sequentially provided with two second pedals 17.
In the present embodiment, specifically, when the ladder stand is folded as a whole, three first steps 16 and two second steps 17 are alternately arranged in the vertical direction, and the first step bracket 1 and the second step bracket 2 are more compact in the horizontal direction.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The ladder climbing device for the cotton picker is characterized by comprising:
a first pedal bracket;
the upper end of the second pedal bracket is fixedly connected to the platform;
the parallel plate mechanism comprises a first parallel plate and a second parallel plate, one end of the first parallel plate is rotatably connected to the middle part of the second pedal support, the other end of the first parallel plate is rotatably connected to the upper end of the first pedal support, the outer side of the other end of the first parallel plate is fixedly connected to a limiting rod, one end of the second parallel plate is rotatably connected to the lower end of the second pedal support, and the other end of the second parallel plate is rotatably connected to the middle part of the first pedal support;
latch hook mechanism, latch hook mechanism includes pedal pole, latch hook pole, extension spring and fixed pin, the middle part of latch hook pole is rotated and is connected in the platform, the one end of latch hook pole is equipped with the latch hook for the hook the gag lever post, the lower extreme of pedal pole rotate connect in the other end of latch hook pole, the middle part of pedal pole is equipped with the axial spout, the upper end of pedal pole is located the top of platform, fixed pin fixed connection in the platform, fixed pin sliding connection in the axial spout, the one end fixed connection of extension spring in the lower extreme of pedal pole, other end fixed connection in the fixed pin is used for driving pedal pole rebound.
2. The ladder climbing device for cotton picker according to claim 1,
still include the ladder handrail, the ladder handrail fixed connection in the upper end of first footboard support.
3. The ladder climbing device for cotton picker according to claim 2,
the ladder rail is longer than the second step support and is used for an operator on the platform to pull the ladder rail.
4. A ladder climbing device for a cotton picker according to any one of claims 1 to 3,
the pedal support is arranged between the other end of the first parallel plate and the other end of the second parallel plate and is a middle support, one end of the gas spring is rotatably connected to one end of the second parallel plate, and the other end of the gas spring is rotatably connected to the middle support.
5. A ladder climbing device for a cotton picker according to any one of claims 1 to 3,
the handle is fixedly connected to the other end side of the latch hook rod.
6. A ladder climbing device for a cotton picker according to any one of claims 1 to 3,
still include middle footboard, middle footboard fixed connection in the inboard of first parallel plate.
7. A ladder climbing device for a cotton picker according to any one of claims 1 to 3,
three first pedals are sequentially arranged on the first pedal support, and two second pedals are sequentially arranged on the second pedal support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122274105.4U CN215718419U (en) | 2021-09-18 | 2021-09-18 | Ladder climbing device for cotton picker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122274105.4U CN215718419U (en) | 2021-09-18 | 2021-09-18 | Ladder climbing device for cotton picker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215718419U true CN215718419U (en) | 2022-02-01 |
Family
ID=80022407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122274105.4U Active CN215718419U (en) | 2021-09-18 | 2021-09-18 | Ladder climbing device for cotton picker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215718419U (en) |
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2021
- 2021-09-18 CN CN202122274105.4U patent/CN215718419U/en active Active
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