Rotatable pedaling ladder assembly and tomato harvester with same
By designing a rotatable step ladder assembly, the problem of increased width of the entire machine caused by the fixed assembly of the step ladder in the existing technology is solved, flexible rotation and fixation are achieved, and the passability and operation convenience of the tomato harvester are improved.
Patent Information
- Application Number
- CN202422914862.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing tomato harvester step ladder adopts a fixed assembly method, which increases the width of the entire machine, has poor passability, and cannot be flexibly adjusted.
A rotatable bicycle ladder assembly is designed, which is rotatably connected to the mounting side plate through a locking assembly. It can be rotated to both sides of the plumb line under the action of external force and fixed by the locking assembly to achieve switching between storage and use states.
The passability of the whole machine is improved, the structure is simple and reasonable, the operation is convenient, the step ladder can be flexibly rotated and kept fixed, and the width of the whole machine is avoided from being increased.
Smart Images
Figure CN223391685U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of agricultural machinery and equipment, in particular to a rotatable step ladder assembly and a tomato harvester having the same. Background Art
[0002] As the cost of manual tomato harvesting continues to rise in China, mechanized harvesting has become an inevitable trend. As the most important piece of equipment in mechanized tomato harvesting, the tomato harvester plays an increasingly important role. In mechanized tomato harvesting, factors such as the ease of operation, stability, and overall machine width of the ladder directly impact the overall performance of the machine. Existing ladders are fixedly mounted on the side of the tomato harvester. While this installation method is relatively simple, it only provides a platform for the operator to enter and exit the machine. The ladder itself extends outwards from the side of the machine at an angle, significantly affecting the overall width of the machine. This makes it difficult to pass through certain locations where the width is exactly the same as the machine itself.
[0003] Based on this, it is necessary to develop a rotatable step ladder assembly and a tomato harvester having the same to overcome the above technical problems. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a rotatable step ladder assembly and a tomato harvester having the same, which effectively overcomes the defects of the prior art.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] A rotatable vehicle ladder assembly comprises a vehicle ladder and two mounting side panels, the two mounting side panels being vertically arranged and spaced parallel to each other, the upper end of the vehicle ladder being placed between the two mounting side panels, the upper ends of the vertical beams at both ends of the vehicle ladder being rotatably connected to the two mounting side panels respectively, a locking assembly being provided at the upper end of the vehicle ladder, the vehicle ladder being used to rotate relative to the mounting side panels to both sides of their plumb line under the action of external force, and being locked to a limit position or unlocked by the locking assemblies with the mounting side panels respectively.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, both ends of the upper end of the above-mentioned vehicle ladder are rotatably connected to the above-mentioned two mounting side plates through shaft-like components.
[0009] Furthermore, the above-mentioned shaft-type component is a stepped bolt.
[0010] Furthermore, one side of the upper portion of the mounting side plate is provided with a step bayonet, and the step bayonet is used to be engaged with and welded to the edge corners of other carriers.
[0011] Furthermore, the lower part of one side of the two mounting side plates is respectively extended oppositely with a limit baffle, and one side of the two vertical beams of the above-mentioned step ladder is respectively provided with a limit side plate, and the above-mentioned step ladder can be rotated until the above-mentioned limit side plate is against the above-mentioned limit baffle.
[0012] Furthermore, the locking assembly is arranged at the lower end of the uppermost pedal of the bicycle ladder.
[0013] Furthermore, the locking components are provided in two groups and are respectively mounted on both sides of the lower end of the top pedal of the bicycle ladder. The two groups of locking components are respectively used to lock and fix the mounting side plates on both sides in a one-to-one correspondence.
[0014] Furthermore, the locking assembly includes a door-shaped mounting plate, a latch and a limiting column. The mounting plate is fixed to the lower end of the uppermost step of the ladder. The latch is arranged horizontally and passes through the vertical plates at both ends of the mounting plate respectively. One end of the latch passes through the vertical beam on the corresponding side of the ladder. Two groups of limiting holes corresponding to the latch are opened on the mounting side plate. The latch can be rotated with the ladder to align with any group of limiting holes and inserted into the limiting holes. One end of the latch is provided with the above-mentioned vertical bar perpendicular to it. A limiting column, and the limiting column is located in the internal area of the above-mentioned mounting plate, two limiting rods are vertically fixed to the middle of the lower end of the horizontal plate of the above-mentioned mounting plate, and the two limiting rods are distributed on both sides of the above-mentioned latch, and an elastic member is connected between the above-mentioned limiting column and the vertical plate at one end of the above-mentioned mounting plate. The above-mentioned latch is used to move toward its other end to the above-mentioned limiting column through the two limiting rods under external force, and compress the above-mentioned elastic member, and in this process the latch exits the above-mentioned limiting hole, and is released after rotating the above-mentioned latch so that the limiting column is blocked and limited by the above-mentioned limiting rod.
[0015] Furthermore, weight-reducing holes are respectively provided on the vertical beams at both ends of the above-mentioned vehicle ladder.
[0016] The beneficial effects of the utility model are: simple and reasonable structural design, the vehicle ladder can be flexibly rotated to be in use or storage state, and can be kept fixed in the two states by using a locking assembly, and the operation is relatively convenient.
[0017] A tomato harvester is also provided, comprising a rotatable step ladder assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The structure diagram of the rotatable step ladder assembly of the utility model is shown as follows Figure 1 ;
[0019] Figure 2 The structure diagram of the rotatable step ladder assembly of the utility model is shown as follows Figure 2 ;
[0020] Figure 3 The structure diagram of the rotatable step ladder assembly of the utility model is shown as follows Figure 3 ;
[0021] Figure 4 It is a structural schematic diagram of the locking assembly in the rotatable step ladder assembly of the utility model.
[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0023] 1. Ladder; 2. Mounting side panels; 3. Locking assembly; 4. Shaft components; 21. Step bayonet; 31. Mounting plate; 32. Latch; 33. Limiting column; 34. Limiting rod; 35. Elastic member; 111. Limiting side panels; 112. Weight reduction holes; 211. Limiting baffle. DETAILED DESCRIPTION
[0024] 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.
[0025] Example 1
[0026] like Figure 1 、 2 As shown in Figure 3, the rotatable step ladder assembly of this embodiment includes a step ladder 1 and two mounting side panels 2. The two mounting side panels 2 are both vertically arranged and spaced in parallel. The upper end of the step ladder 1 is placed between the two mounting side panels 2. The upper ends of the vertical beams at both ends of the step ladder 1 are rotatably connected to the two mounting side panels 2 respectively. A locking assembly 3 is provided at the upper end of the step ladder 1. The step ladder 1 is used to rotate to both sides of its plumb line relative to the mounting side panels 2 under the action of external force, and is locked or unlocked with the mounting side panels 2 through the locking assembly 3 respectively.
[0027] The rotatable step ladder assembly of this embodiment is installed in an adapted position on an agricultural machine (indicated by A in the figure) via two mounting side panels 2. Taking a harvester as an example, the two mounting side panels 2 are welded and fixed to the high side of the harvester body. The step ladder 1 is then assembled with the two mounting side panels 2. When in use, the step ladder 1 is rotated outward to form a certain angle with the plumb line (the angle is generally about 15 degrees). The step ladder 1 is then locked in this position using the locking assembly 3. When passage is required, the lock is released and the step ladder 1 is rotated toward the harvester body so that the step ladder 1 rotates to the other side of the plumb line (inward). The step ladder 1 is then locked to the mounting side panels 2 using the locking assembly 3. That is, when passage is required, the step ladder 1 is rotated inward and stored, does not protrude from the side of the machine body, does not increase the width of the entire machine, and improves the passability of the entire machine. The overall structural design is simple and reasonable. The step ladder can be flexibly rotated to be in use or stored, and can be fixed in both states using the locking assembly, making operation relatively convenient.
[0028] In this embodiment, the two ends of the upper end of the ladder 1 are rotatably connected to the two mounting side plates 2 via shaft members 4. The assembly between the two is relatively simple. It should be noted that the two shaft members 4 must be coaxial so that the ladder 1 can rotate smoothly.
[0029] In this embodiment, the shaft member 4 is a stepped bolt, which ensures that the appropriate torque can be achieved, and is safe and reliable.
[0030] In this embodiment, one side of the upper portion of the mounting side plate 2 is provided with a step bayonet 21, which is used to engage with the edge corners of other carriers and be welded and fixed. By engaging the step bayonet 21 with the side beam of the harvester, better positioning and installation are achieved.
[0031] As a preferred embodiment, a limit baffle 211 is respectively extended oppositely from the lower part of one side of the two above-mentioned mounting side panels 2, and a limit side panel 111 is respectively provided on one side of the two vertical beams of the above-mentioned vehicle ladder 1. The above-mentioned vehicle ladder 1 can be rotated until the above-mentioned limit side panel 111 is against the above-mentioned limit baffle 211.
[0032] In the above embodiment, the design of the limiting baffle 211 and the limiting side plate 111 defines the extreme position of the step ladder 1 when it is rotated toward the harvester for storage, thereby preventing the step ladder 1 from suddenly falling during rotation and colliding with the machine body, thereby creating a safety hazard.
[0033] In this embodiment, the locking assembly 3 is arranged at the lower end of the uppermost step of the ladder 1. It is equivalent to a hidden installation and will not affect the normal climbing of the operator.
[0034] As a preferred embodiment, the above-mentioned locking components 3 are provided in two groups and are respectively installed on both sides of the lower end of the top pedal of the above-mentioned step ladder 1. The two groups of the above-mentioned locking components 3 are respectively used to lock and fix the above-mentioned mounting side panels 2 on both sides in a one-to-one corresponding manner.
[0035] In the above embodiment, the two sets of locking assemblies 3 jointly lock the vertical beams at both ends of the vehicle ladder 1, making the fixation more stable.
[0036] As a preferred embodiment, Figure 4As shown, the locking assembly 3 includes a door-shaped mounting plate 31, a latch 32 and a limiting column 33. The mounting plate 31 is fixed to the lower end of the uppermost pedal of the above-mentioned step ladder 1. The latch 32 is arranged horizontally and passes through the vertical plates at both ends of the mounting plate 31 respectively. One end of the latch 32 passes through the vertical beam on the corresponding side of the above-mentioned step ladder 1. Two groups of limiting holes corresponding to the latch 32 are opened on the above-mentioned mounting side plate 2. The latch 32 can be rotated with the above-mentioned step ladder 1 to align with any group of the above-mentioned limiting holes and inserted into the above-mentioned limiting holes. One end of the above-mentioned latch 32 is provided with the above-mentioned limiting column 33 perpendicular to it. The above-mentioned limit column 33 is located in the internal area of the above-mentioned mounting plate 31, and two limit rods 34 are vertically fixed to the middle of the lower end of the horizontal plate of the above-mentioned mounting plate 31. The two limit rods 34 are distributed on both sides of the above-mentioned pin 32. An elastic member 35 is connected between the above-mentioned limit column 33 and the vertical plate at one end of the above-mentioned mounting plate 31. The above-mentioned pin 32 is used to move toward its other end to the above-mentioned limit column 33 through the two above-mentioned limit rods 34 when an external force is applied, and compress the above-mentioned elastic member 35. In this process, the pin 32 exits the above-mentioned limit hole, and is released after rotating the above-mentioned pin 32 so that the limit column 33 is blocked and limited by the above-mentioned limit rod 34.
[0037] In the above embodiment, when the outer width of the vehicle ladder 1 affects the passability of the entire machine, the vehicle ladder 1 needs to be rotated toward the lower body. At this time, it is only necessary to pull the pin 32 toward its other end so that the pin 32 exits the limit hole in the climbing state on the installation side panel 2 (indicated by b in the figure). At the same time, the limit column 33 passes through the area between the two limit rods 34. Next, the operation pin 32 is rotated 90°. After releasing it, under the elastic force of the elastic member 35, the limit column 33 rests against the sides of the two limit rods 34 to achieve "locking". Next, after the vehicle ladder 1 is rotated into place (rotated inward), the pin 32 is rotated in the opposite direction so that the pin 32 can pass through the two limit rods 34. After releasing the pin 32, under the elastic force of the elastic member 35, the pin 32 will be inserted into the corresponding limit hole in the storage state (indicated by c in the figure). In addition, the limit handle is rotated 90 degrees to self-lock, and then the step ladder 3 is manually rotated until the limit rod 34 is inserted into the limit hole to complete the limit of the step ladder 1. The entire locking assembly 3 is cleverly designed and easy to operate and quick.
[0038] In this embodiment, an annular groove can be opened at the position where the two limit rods 34 block the limit column 33, so that the limit column 33 is embedded in the groove of the limit rod 34 to achieve "engagement", avoiding arbitrary rotation to release the limit under external force interference, and the locking state is more stable.
[0039] In this embodiment, the elastic member 35 is a spring sleeved on the latch 32 .
[0040] In this embodiment, weight-reducing holes 112 are respectively provided on the vertical beams at both ends of the vehicle ladder 1, which can effectively reduce the weight of the ladder assembly and facilitate the portability of the ladder during manual adjustment.
[0041] Example 2
[0042] The tomato harvester of this embodiment includes the rotatable step ladder assembly of embodiment 1.
[0043] 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 to 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0045] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present invention. 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A rotatable step ladder assembly, characterized in that: The utility model comprises a vehicle step ladder (1) and two mounting side panels (2), wherein the two mounting side panels (2) are both arranged vertically and spaced apart and parallel to each other, the upper end of the vehicle step ladder (1) is placed between the two mounting side panels (2), the upper ends of the vertical beams at both ends of the vehicle step ladder (1) are respectively rotatably connected to the two mounting side panels (2), and the upper end of the vehicle step ladder (1) is provided with a locking assembly (3), and the vehicle step ladder (1) is used to rotate relative to the mounting side panels (2) to the two sides of the plumb line thereof under the action of an external force, and is locked or unlocked with the mounting side panels (2) through the locking assembly (3).
2. A rotatable ladder assembly according to claim 1, characterized in that: The two ends of the upper end of the vehicle ladder (1) are rotatably connected to the two mounting side plates (2) via shaft components (4).
3. The rotatable ladder assembly according to claim 2, characterized in that: The shaft component (4) is a stepped bolt.
4. The rotatable ladder assembly according to claim 1, characterized in that: One side of the upper portion of the mounting side plate (2) is respectively provided with a step bayonet (21), and the step bayonet (21) is used for being clamped and welded to the edge corners of other carriers.
5. The rotatable bicycle ladder assembly according to claim 4, characterized in that: Limit baffles (211) are respectively provided on the lower parts of one side of the two mounting side plates (2) and are oppositely extended. Limit side plates (111) are respectively provided on one side of the two vertical beams of the vehicle step ladder (1). The vehicle step ladder (1) can be rotated until the limit side plates (111) abut against the limit baffles (211).
6. A rotatable bicycle ladder assembly according to any one of claims 1 to 5, characterized in that: The locking assembly (3) is arranged at the lower end of the uppermost pedal of the bicycle ladder (1).
7. The rotatable ladder assembly according to claim 6, characterized in that: The locking components (3) are provided in two groups and are respectively mounted on both sides of the lower end of the uppermost pedal of the step ladder (1). The two groups of locking components (3) are respectively used to lock and fix the mounting side panels (2) on both sides in a one-to-one correspondence.
8. The rotatable bicycle ladder assembly according to claim 6, characterized in that: The locking assembly (3) includes a door-shaped mounting plate (31), a latch (32) and a limiting column (33). The mounting plate (31) is fixed to the lower end of the uppermost pedal of the step ladder (1). The latch (32) is arranged horizontally and passes through the vertical plates at both ends of the mounting plate (31). One end of the latch (32) passes through the vertical beam on the corresponding side of the step ladder (1). Two groups of limiting holes corresponding to the latch (32) are opened on the mounting side plate (2). The latch (32) can rotate with the step ladder (1) to align with any group of the limiting holes and be inserted into the limiting holes. One end of the latch (32) is provided with the limiting column (33) perpendicular to it, and the The limiting column (33) is located in the inner area of the mounting plate (31), and two limiting rods (34) are vertically fixed to the middle of the lower end of the horizontal plate of the mounting plate (31). The two limiting rods (34) are distributed on both sides of the latch (32). An elastic member (35) is connected between the limiting column (33) and the vertical plate at one end of the mounting plate (31). The latch (32) is used to move toward its other end to the limiting column (33) through the two limiting rods (34) under external force and compress the elastic member (35). In this process, the latch (32) exits the limiting hole, and is released after rotating the latch (32) so that the limiting column (33) is blocked and limited by the limiting rod (34).
9. A rotatable bicycle ladder assembly according to any one of claims 1 to 5, characterized in that: The vertical beams at both ends of the vehicle ladder (1) are respectively provided with weight-reducing holes (112).
10. A tomato harvester, characterized in that: The utility model comprises a rotatable vehicle ladder assembly according to any one of claims 1 to 9.