Ladder capable of rotating longitudinally and transversely and agricultural machine

Abstract

The utility model relates to a ladder capable of rotating longitudinally and transversely and agricultural machinery, the ladder capable of rotating longitudinally and transversely comprises a ladder body, a transverse rotating mechanism and a longitudinal rotating mechanism, the transverse rotating mechanism and the longitudinal rotating mechanism are arranged on one side of the upper end of the ladder body, and the transverse rotating mechanism comprises a transverse supporting part and a transverse rotating part. The transverse rotating part is arranged on the transverse supporting part in a transverse rotating manner; the longitudinal rotating mechanism comprises a longitudinal supporting part and a longitudinal rotating part, and the longitudinal rotating part can be arranged on the longitudinal supporting part in a longitudinal rotating mode; the transverse supporting part is mounted on the longitudinal rotating part, and one side of the upper end of the ladder body is connected with the transverse rotating part; or, the longitudinal supporting part is mounted on the transverse rotating part, and one side of the upper end of the ladder body is connected with the longitudinal rotating part. According to the ladder capable of rotating longitudinally and transversely, disclosed by the utility model, the ladder not only can rotate transversely, but also can rotate longitudinally, so that the problem that the trafficability is poor due to the fact that the ladder can only rotate transversely can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to agricultural machinery, and in particular to a ladder and agricultural machinery capable of longitudinal rotation and transverse rotation. Background Art

[0002] The ladders of existing agricultural machinery can generally only rotate horizontally. When in use, due to the limited height of the ladder from the ground, the ladder is prone to poor passability during the horizontal rotation process. Utility Model Content

[0003] In order to solve one or more technical problems existing in the prior art, the utility model provides a ladder and an agricultural machine which can rotate longitudinally and transversely.

[0004] The utility model solves the above technical problems with the following technical solutions: a ladder capable of longitudinal rotation and transverse rotation, comprising a ladder body and a transverse rotation mechanism and a longitudinal rotation mechanism arranged on one side of the upper end of the ladder body, wherein the transverse rotation mechanism comprises a transverse support portion and a transverse rotation portion, wherein the transverse rotation portion can be arranged on the transverse support portion and can be rotated transversely; wherein the longitudinal rotation mechanism comprises a longitudinal support portion and a longitudinal rotation portion, wherein the longitudinal rotation portion can be arranged on the longitudinal support portion and can be rotated longitudinally;

[0005] The transverse supporting part is installed on the longitudinal rotating part, and one side of the upper end of the ladder body is connected to the transverse rotating part; or, the longitudinal supporting part is installed on the transverse rotating part, and one side of the upper end of the ladder body is connected to the longitudinal rotating part.

[0006] The beneficial effects of the utility model are as follows: the utility model provides a ladder that can rotate longitudinally and transversely, and can rotate both transversely and longitudinally. When the agricultural machinery is moving and the ladder has poor passability, the ladder can be longitudinally rotated to one side of the agricultural machinery. After the agricultural machinery is moved into place, the ladder can be longitudinally rotated to the working position, thereby avoiding the problem that the ladder can only rotate transversely and easily causes poor passability.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the longitudinal rotating part includes a turntable, the longitudinal supporting part includes support members and limit members arranged at intervals, one axial side of the turntable is limited in the gap between the support member and the limit member, and the other axial side of the turntable is provided with a connecting part for installing a transverse supporting part or connecting a ladder body.

[0009] The beneficial effect of adopting the above further solution is that by providing the turntable, the support member and the limit member, the turntable can be axially limited to prevent the turntable from axially moving. By providing a connecting portion on the turntable, it is convenient to connect with the ladder.

[0010] Furthermore, the longitudinal support portion also includes a longitudinal positioning member and a support shell, at least one of the support member and the limit member is installed on the support shell, the longitudinal positioning member is elastically connected to the support shell, an arc-shaped positioning plate is provided on the inner ring side of the turntable, and a positioning opening is provided on the arc-shaped positioning plate. The longitudinal positioning member is located in the positioning opening in a natural state to position the arc-shaped positioning plate and the turntable, and the longitudinal positioning member is disengaged from the positioning opening in a pulled state to cancel the positioning of the arc-shaped positioning plate and the turntable.

[0011] The beneficial effect of adopting the above further scheme is: by providing a longitudinal positioning member and a supporting shell, it is convenient to rotate the longitudinal rotating part to a set position, and circumferential limiting is performed through the cooperation of the longitudinal positioning member and the positioning opening to prevent the turntable from rotating circumferentially.

[0012] Furthermore, two positioning openings are provided, and the two positioning openings are arranged at 90 degrees along the circumference of the turntable.

[0013] The beneficial effect of adopting the above further solution is that by providing two positioning openings, it is convenient to position the turntable in the initial position and after longitudinal rotation.

[0014] Furthermore, the longitudinal positioning member includes a longitudinal hinged rod and a longitudinal positioning rod, the longitudinal positioning rod is fixed at the middle position of the longitudinal hinged rod, both ends of the longitudinal hinged rod are respectively hinged on the supporting shell, and the longitudinal positioning rod can be adapted to be inserted into the positioning opening for positioning or removed from the positioning opening to cancel positioning.

[0015] The beneficial effect of adopting the above further solution is that by providing the longitudinal hinged rod and the longitudinal positioning rod, it is convenient to rotate the longitudinal hinged rod so that the longitudinal positioning rod can be inserted into the positioning opening or removed from the positioning opening.

[0016] Furthermore, the longitudinal hinge rod is arranged on one side of the turntable and is perpendicular to the central axis of the turntable.

[0017] Furthermore, the turntable includes an annular limiting plate and a connecting plate which are axially spaced apart, the annular limiting plate is limited in the gap between the supporting member and the limiting member, and the connecting plate is provided with a connecting portion for installing a transverse supporting portion or connecting a ladder body.

[0018] The beneficial effect of adopting the above further solution is that by providing the annular limiting plate and the connecting plate, axial limiting and connection and fixing of the ladder are facilitated.

[0019] Further, the transverse rotating part is rotatably mounted on the transverse supporting part through a rotating shaft, a transverse positioning rod is provided on the transverse supporting part, a positioning pin is provided at one end of the transverse positioning rod, a middle part of the transverse positioning rod is hinged on the transverse supporting part, and the other end of the transverse positioning rod extends vertically upward as a transverse operating end;

[0020] The transverse rotating part is provided with two positioning holes, which are arranged at 90 degrees with the central axis of the rotating shaft as the center; when the transverse positioning rod is in a natural state, the positioning pin is positioned and inserted in one of the positioning holes.

[0021] The beneficial effect of adopting the above further solution is that by providing two positioning holes, the initial positioning of the lateral rotating part and the positioning and snapping after the part is rotated into place are facilitated.

[0022] Furthermore, the middle part of the transverse positioning rod has a hinge point, and the transverse positioning rods on both sides of the hinge point are divided into a first positioning section and a second positioning section. The free end of the first positioning section is provided with a positioning pin, and the weight of the first positioning section and the positioning pin is greater than the weight of the second positioning section.

[0023] The beneficial effect of adopting the above further solution is that when the transverse positioning rod is in a natural state, the positioning pin can fall into the corresponding positioning hole.

[0024] An agricultural machine comprises the above-mentioned ladder capable of longitudinal rotation and transverse rotation, and also comprises an agricultural machine body, on which the longitudinal support part or the transverse support part of the ladder is mounted.

[0025] The beneficial effect of the utility model is that the agricultural machinery of the utility model can select two different use or folding modes of the ladder, that is, rotating forward or rotating upward, according to actual working conditions, thereby reducing collision damage to the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of the longitudinal rotating mechanism of the utility model;

[0027] Figure 2 for Figure 1 AA cross-sectional structural diagram;

[0028] Figure 3 It is a schematic diagram of the top view of the longitudinal rotating mechanism of the utility model;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the longitudinal rotating mechanism of the utility model;

[0030] Figure 5 This is a schematic diagram of the front view of the horizontal rotation mechanism of the utility model;

[0031] Figure 6 It is a side view structural schematic diagram of the lateral rotation mechanism of the utility model;

[0032] Figure 7 It is a schematic diagram of the top view of the horizontal rotation mechanism of the utility model;

[0033] Figure 8 It is a schematic diagram of the structure of the ladder of the utility model before and after longitudinal rotation;

[0034] Fig. 9 It is a schematic diagram of the structure of the ladder of the utility model before and after the horizontal rotation.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 100, lateral rotation mechanism; 101, lateral rotation part; 102, lateral support part; 103, lateral positioning rod; 104, positioning pin; 105, lateral operation end; 106, rotating shaft; 107, hinged ear plate; 108, hinged shaft; 109, reinforcing rod; 110, fixing plate;

[0037] 200, longitudinal rotation mechanism; 201, annular limiting plate; 202, connecting plate; 203, longitudinal hinge rod; 204, longitudinal positioning rod; 205, longitudinal operating handle; 206, supporting shell; 207, positioning opening; 208, handle operation limiting member; 209, handle operation limiting hole; 210, arc-shaped positioning plate; 211, limiting member; 212, supporting member; 213, spring; 214, turntable;

[0038] 300. Ladder body. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] like Figure 1 to Figure 7 As shown, a ladder capable of longitudinal rotation and transverse rotation in this embodiment comprises a ladder body 300 and a transverse rotation mechanism 100 and a longitudinal rotation mechanism 200 arranged on one side of the upper end of the ladder body 300, wherein the transverse rotation mechanism 100 comprises a transverse support portion 102 and a transverse rotation portion 101, wherein the transverse rotation portion 101 is arranged on the transverse support portion 102 and can be transversely rotated; wherein the longitudinal rotation mechanism 200 comprises a longitudinal support portion and a longitudinal rotation portion, wherein the longitudinal rotation portion is arranged on the longitudinal support portion and can be longitudinally rotated;

[0041] The transverse supporting part 102 is installed on the longitudinal rotating part, and one side of the upper end of the ladder body 300 is connected to the transverse rotating part; or, the longitudinal supporting part is installed on the transverse rotating part, and one side of the upper end of the ladder body 300 is connected to the longitudinal rotating part.

[0042] like Figure 1~Figure 4 As shown, the longitudinal rotating part of this embodiment includes a turntable 214, and the longitudinal supporting part includes support members 212 and stoppers 211 arranged at intervals. One side of the turntable 214 in the axial direction is limited in the gap between the support members 212 and the stoppers 211, and the other side of the turntable 214 in the axial direction is provided with a connection part for installing the transverse supporting part 102 or connecting the ladder body 300. By providing the turntable, the support members and the stoppers, the turntable can be axially limited to prevent the turntable from moving in the axial direction. By providing the connection part on the turntable, it is convenient to connect with the ladder.

[0043] like Figure 1~Figure 4 As shown, the longitudinal support part of this embodiment also includes a longitudinal positioning member and a support shell 206, at least one of the support member 212 and the limiting member 211 is installed on the support shell 206, the longitudinal positioning member is elastically connected to the support shell 206, an arc-shaped positioning plate 210 is provided on the inner ring side of the turntable 214, and a positioning opening 207 is provided on the arc-shaped positioning plate 210. The longitudinal positioning member is located in the positioning opening 207 in a natural state to position the arc-shaped positioning plate 210 and the turntable 214, and the longitudinal positioning member is disengaged from the positioning opening 207 in a pulled state to cancel the positioning of the arc-shaped positioning plate 210 and the turntable 214. By providing the longitudinal positioning member and the support shell, it is convenient to rotate the longitudinal rotating part to the set position, and the circumferential limit is performed by the cooperation of the longitudinal positioning member and the positioning opening to prevent the turntable from rotating circumferentially. The central axis of the arc-shaped positioning plate 210 coincides with the central axis of the turntable.

[0044] like Figure 4 As shown, in this embodiment, there are two positioning openings 207, and the two positioning openings 207 are arranged at 90 degrees along the circumference of the rotating disk 214. By providing two positioning openings, it is convenient to position the rotating disk in the initial position and after longitudinal rotation.

[0045] Specifically, Figure 4As shown, a handle operation limiter 208 is further provided on the support shell 206 of the present embodiment. The handle operation limiter 208 is located below the longitudinal positioning rod 204 and is provided with a handle operation limiter hole 209. The longitudinal positioning rod 204 is inserted into the handle operation limiter hole 209 and can rotate within the range limited by the handle operation limiter hole 209. When the longitudinal operating handle is rotated, the handle operation limiter hole 209 is provided to prevent the longitudinal positioning rod 204 from rotating too far when the longitudinal positioning rod 204 is disengaged from the positioning opening 207.

[0046] like Figure 1~Figure 4 As shown, the longitudinal positioning member of this embodiment includes a longitudinal hinge rod 203 and a longitudinal positioning rod 204. The longitudinal positioning rod 204 is fixed at the middle position of the longitudinal hinge rod 203. Both ends of the longitudinal hinge rod 203 are respectively hinged on the support shell 206. The longitudinal positioning rod 204 can be inserted into the positioning opening 207 for positioning or removed from the positioning opening 207 to cancel positioning. By providing the longitudinal hinge rod and the longitudinal positioning rod, it is convenient to rotate the longitudinal hinge rod to make the longitudinal positioning rod snap into the positioning opening or remove it from the positioning opening.

[0047] Specifically, Figure 4 As shown, a through hole can be opened on the support shell 206, and a spring 213 can be set at the position of the longitudinal hinge rod 203 close to the longitudinal operating handle 205. The spring 213 passes through the through hole and is connected to the side of the support shell 206 close to the turntable 214. In this way, when the longitudinal operating handle 205 is rotated, the spring 213 can provide a restoring force on one side, which facilitates the resetting of the longitudinal positioning rod 204 and the longitudinal hinge rod 203.

[0048] like Figure 1~Figure 4 As shown, the longitudinal hinge rod 203 of this embodiment is arranged on one side of the rotating disk 214 and is perpendicular to the central axis of the rotating disk 214 .

[0049] like Figure 1~Figure 4 As shown, the rotating disk 214 of this embodiment includes an annular limiting plate 201 and a connecting plate 202 arranged axially at intervals, the annular limiting plate 201 is limited in the gap between the support member 212 and the limiting member 211, the support member 212 can be an arc plate or an annular plate connected to the support shell 206, and the limiting member 211 can also be an arc plate or an annular plate connected to the support shell or the support member 212; the connecting plate 202 is provided with a connecting portion for installing the transverse support portion 102 or connecting the ladder body 300. By providing the annular limiting plate and the connecting plate, axial limiting and connecting and fixing the ladder are convenient.

[0050] like Figure 5~Figure 7As shown, the transverse rotating part 101 of this embodiment is rotatably mounted on the transverse supporting part 102 via a rotating shaft 106, a transverse positioning rod 103 is provided on the transverse supporting part 102, one end of the transverse positioning rod 103 is provided with a positioning pin 104, the middle part of the transverse positioning rod 103 is hinged on the transverse supporting part 102, and the other end of the transverse positioning rod 103 extends vertically upward as a transverse operating end 105; two positioning holes are provided on the transverse rotating part 101, and the two positioning holes are arranged at 90° with the central axis of the rotating shaft 106 as the center; when the transverse positioning rod 103 is in a natural state, the positioning pin 104 is positioned and inserted in one of the positioning holes. By setting two positioning holes, the initial problem of the transverse rotating part and the positioning and clamping after the rotation are in place are convenient.

[0051] like Figure 5~Figure 7 As shown, the middle of the transverse positioning rod 103 of this embodiment has a hinge point, and the transverse positioning rod 103 on both sides of the hinge point is divided into a first positioning section and a second positioning section, and the free end of the first positioning section is provided with a positioning pin 104, and the weight of the first positioning section and the positioning pin 104 is greater than the weight of the second positioning section. When the transverse positioning rod is in a natural state, the positioning pin can fall into the corresponding positioning hole.

[0052] Specifically, Figure 5 As shown, the transverse support portion 102 can be a transverse support plate, the rotating shaft 106 is installed on the lower surface of the transverse support plate, and two vertically parallel hinged ear plates 107 are arranged on the lower surface of the transverse support plate, and then a hinge shaft 108 is arranged between the two hinged ear plates 107, and then the transverse positioning rod 103 is vertically connected to the hinge shaft 108, and the transverse operating end 105 and the hinge shaft 108 are respectively located on both sides of the transverse support plate. A reinforcing rod 109 is also provided on the bottom surface of the transverse support plate, and the reinforcing rod 109 is arranged obliquely. The lower end of the reinforcing rod 109 can be connected to the fixing plate 110 at the lower end of the rotating shaft 106, or can be connected to the agricultural machine body.

[0053] The ladder of the present embodiment is capable of longitudinal rotation and transverse rotation, and integrates a transverse rotation mechanism, a longitudinal rotation mechanism and a ladder body to realize transverse and longitudinal rotation of the entire mechanism. Transverse rotation refers to rotation in the horizontal direction, which does not affect the use of the ladder, but only differs in the use position. Longitudinal rotation refers to rotating the ladder body from the vertical direction to the horizontal direction, which improves the overall passability of the ladder body.

[0054] The ladder of the present embodiment can rotate longitudinally and transversely, and can rotate both transversely and longitudinally. When the ladder has poor passability during the movement of agricultural machinery, the ladder can be rotated longitudinally to one side of the agricultural machinery. After the agricultural machinery is moved into place, the ladder can be rotated longitudinally to the working position, thereby avoiding the problem that the ladder can only rotate transversely, which easily causes poor passability.

[0055] like Figure 8 and Fig. 9 As shown, this embodiment also provides an agricultural machinery, including the above-mentioned ladder capable of longitudinal rotation and transverse rotation, and also includes an agricultural machinery body, and the longitudinal support part or the transverse support part of the ladder is installed on the agricultural machinery body.

[0056] The agricultural machinery of this embodiment may be a grain harvester, a corn harvester, etc.

[0057] The agricultural machinery of this embodiment can select two different use or folding modes of the ladder, namely, rotating the ladder forward or rotating the ladder upward, according to actual working conditions, thereby reducing collision damage to the ladder.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore should not be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A ladder capable of longitudinal rotation and transverse rotation, characterized in that: The ladder comprises a ladder body and a transverse rotation mechanism and a longitudinal rotation mechanism arranged on one side of the upper end of the ladder body, wherein the transverse rotation mechanism comprises a transverse support portion and a transverse rotation portion, wherein the transverse rotation portion can be arranged on the transverse support portion and can be rotated transversely; the longitudinal rotation mechanism comprises a longitudinal support portion and a longitudinal rotation portion, wherein the longitudinal rotation portion can be arranged on the longitudinal support portion and can be rotated longitudinally; The transverse supporting part is installed on the longitudinal rotating part, and one side of the upper end of the ladder body is connected to the transverse rotating part; or, the longitudinal supporting part is installed on the transverse rotating part, and one side of the upper end of the ladder body is connected to the longitudinal rotating part.

2. A ladder capable of longitudinal rotation and transverse rotation according to claim 1, characterized in that: The longitudinal rotating part includes a turntable, and the longitudinal supporting part includes support members and limit members arranged at intervals. One axial side of the turntable is limited in the gap between the support member and the limit member, and the other axial side of the turntable is provided with a connecting part for installing a transverse supporting part or connecting a ladder body.

3. A ladder capable of longitudinal rotation and transverse rotation according to claim 2, characterized in that: The longitudinal support portion also includes a longitudinal positioning member and a support shell, at least one of the support member and the limit member is installed on the support shell, the longitudinal positioning member is elastically connected to the support shell, an arc-shaped positioning plate is provided on the inner ring side of the turntable, and a positioning opening is provided on the arc-shaped positioning plate. The longitudinal positioning member is located in the positioning opening in a natural state to position the arc-shaped positioning plate and the turntable, and the longitudinal positioning member is disengaged from the positioning opening in a pulled state to cancel the positioning of the arc-shaped positioning plate and the turntable.

4. A ladder capable of longitudinal rotation and transverse rotation according to claim 3, characterized in that: There are two positioning openings, and the two positioning openings are arranged at 90 degrees along the circumference of the rotating disk.

5. A ladder capable of longitudinal rotation and transverse rotation according to claim 3, characterized in that: The longitudinal positioning member includes a longitudinal hinged rod and a longitudinal positioning rod, wherein the longitudinal positioning rod is fixed at the middle position of the longitudinal hinged rod, and both ends of the longitudinal hinged rod are respectively hinged on the supporting shell, and the longitudinal positioning rod can be adapted to be inserted into the positioning opening for positioning or removed from the positioning opening to cancel positioning.

6. A ladder capable of longitudinal rotation and transverse rotation according to claim 5, characterized in that: The longitudinal hinge rod is arranged on one side of the turntable and is perpendicular to the central axis of the turntable.

7. A ladder capable of longitudinal rotation and transverse rotation according to claim 2, characterized in that: The turntable comprises an annular limiting plate and a connecting plate which are arranged axially at intervals. The annular limiting plate is limited in the gap between the supporting member and the limiting member. The connecting plate is provided with a connecting portion for installing a transverse supporting portion or connecting a ladder body.

8. A ladder capable of longitudinal rotation and transverse rotation according to claim 1, characterized in that: The transverse rotating part is rotatably mounted on the transverse supporting part through a rotating shaft, a transverse positioning rod is provided on the transverse supporting part, a positioning pin is provided at one end of the transverse positioning rod, a middle part of the transverse positioning rod is hinged on the transverse supporting part, and the other end of the transverse positioning rod extends vertically upward as a transverse operating end; The transverse rotating part is provided with two positioning holes, which are arranged at 90 degrees with the central axis of the rotating shaft as the center; when the transverse positioning rod is in a natural state, the positioning pin is positioned and inserted in one of the positioning holes.

9. A ladder capable of longitudinal rotation and transverse rotation according to claim 8, characterized in that: The middle part of the transverse positioning rod has a hinge point, and the transverse positioning rods on both sides of the hinge point are divided into a first positioning section and a second positioning section. A positioning pin is provided at the free end of the first positioning section, and the weight of the first positioning section and the positioning pin is greater than the weight of the second positioning section.

10. An agricultural machine, characterized in that: The invention comprises a ladder capable of longitudinal rotation and transverse rotation as claimed in any one of claims 1 to 9, and also comprises an agricultural machine body, on which the longitudinal support part or the transverse support part of the ladder is mounted.

Images