Small excavator
By introducing hydraulic rods and adjustment mechanisms into mini excavators to adjust the height and position of the seat, the inconvenience caused by the fixed seat height is solved, enabling flexible seat adjustment and improving the ability to grip objects, thus simplifying the operator's operation.
Patent Information
- Application Number
- CN202520381498.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The existing mini excavator seats are too high and difficult to adjust, making them inconvenient for drivers of different sizes. Furthermore, getting into the seat requires climbing, which increases physical exertion.
An excavator was designed that includes a seat, an adjustment mechanism, hydraulic rods, and a robotic arm. The seat height and position can be adjusted by the hydraulic rods and the adjustment mechanism, and the object gripping ability can be improved by combining the limiting tooth cutter, simplifying the process of the driver entering the seat.
It enables flexible adjustment of seat height and position to meet the needs of drivers of different body types, reduces the physical exertion of climbing into the seat, and improves the ability to grip objects, thus enhancing ease of use.
Smart Images
Figure CN223793633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of excavator technology, specifically a small excavator. Background Technology
[0002] An excavator, also known as a digger, is a type of earthmoving machinery that uses a bucket to dig materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile.
[0003] Existing mini excavators are generally used for projects with small areas, such as farm operations, which can reduce actual production costs. However, the seats of existing mini excavators are relatively high and difficult to adjust vertically and horizontally. This requires drivers of different body types to adapt to the seat, causing inconvenience. Furthermore, drivers often need to climb onto the excavator to enter the seat, which is also inconvenient. Utility Model Content
[0004] The purpose of this invention is to provide a small excavator to solve the problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a small excavator, including a seat and an excavator body, a control box is installed on the upper end of the excavator body, an adjustment structure is rotatably connected to the rear end of the excavator body, an inclined third hydraulic rod is slidably connected to the upper end of the adjustment structure, the upper end of the third hydraulic rod is connected to the lower end of the seat, a push-pull structure is installed at the front end of the control box, a mechanical arm is rotatably connected to the front end of the push-pull structure, and a bucket is rotatably connected to the front end of the mechanical arm.
[0006] Preferably, the push-pull structure includes a first hydraulic rod and a second hydraulic rod, with the first hydraulic rod installed between the excavator body and the robotic arm, and the second hydraulic rod installed above the first hydraulic rod between the excavator body and the robotic arm.
[0007] Preferably, a limiting toothed cutter is rotatably connected above the bucket at a position below the robotic arm.
[0008] Preferably, a control lever is installed at the upper end of the control box, and a dustproof plate is rotatably connected to the front end of the control box, with the highest point of the dustproof plate being higher than the height of the seat.
[0009] Preferably, the adjustment structure includes a sliding rod, a fixed rod, and a rotating plate. Two rotating rods are rotatably connected to the rear end of the excavator body. A fixed rod is rotatably connected to the inner side of each of the two rotating rods. A sliding rod is threaded between the two fixed rods. The front end of the sliding rod is connected to the lower rear end of the hydraulic cylinder.
[0010] Preferably, both the sliding rod and the fixed rod have multiple mounting holes arranged in an array on their surfaces.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This mini excavator allows the user to control the movement of the excavator body through the control box. The distance between the seat and the adjustment mechanism can be changed by the third hydraulic rod. When the third hydraulic rod retracts, the height of the seat will be lowered. Seats of different heights can be used to accommodate drivers of different heights. By rotating the adjustment mechanism, the seat can be gradually brought closer to the ground, eliminating the need for the driver to climb the excavator to enter the seat, thus reducing the driver's physical exertion.
[0013] 2. This mini excavator has a limiting tooth cutter installed above the bucket and below the mechanical arm. The lower end of the limiting tooth cutter is serrated, which can work with the bucket to hold objects with relatively smooth surfaces, reducing the chance of objects falling off the bucket surface. Attached Figure Description
[0014] Figure 1 This is a three-dimensional view of the overall exterior of this utility model;
[0015] Figure 2 This is a side view of the overall structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the adjustment structure of this utility model.
[0017] In the diagram: 1. Seat; 2. Adjustment structure; 201. Sliding rod; 202. Fixed rod; 203. Rotating rod; 3. Control box; 4. Dustproof plate; 5. Push-pull structure; 501. First hydraulic rod; 502. Second hydraulic rod; 6. Mechanical arm; 7. Bucket; 8. Limiting cutter; 9. Control lever; 10. Third hydraulic rod; 11. Excavator body; 12. Mounting hole. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] like Figures 1 to 3 As shown, this embodiment of the mini excavator includes a seat 1 and an excavator body 11. A control box 3 is installed on the upper end of the excavator body 11. The control box 3 contains a control structure for controlling the operation of the excavator body 11 and its auxiliary structures. The control box 3 provides a certain degree of protection. An adjustment structure 2 is rotatably connected to the rear end of the excavator body 11. The adjustment structure 2 can rotate around its connection point with the excavator body 11. The upper end of the adjustment structure 2 is slidably connected to an inclined first hydraulic rod 10. The upper end of the first hydraulic rod 10 is connected to the lower end of the seat 1. The seat 1 and the excavator body 1 can be adjusted through the first hydraulic rod 501. When the distance between the adjustment structures 2 is retracted, the height of the seat 1 will decrease. Seats 1 of different heights can be used for drivers of different heights. By rotating the height adjustment structure 2, the seat 1 can be gradually brought closer to the ground, eliminating the need for the driver to climb the excavator to enter the seat 1, thus reducing the driver's physical exertion. A push-pull structure 5 is installed at the front of the control box 3. The front of the push-pull structure 5 is rotatably connected to the mechanical arm 6. The push-pull structure 5 and the mechanical arm 6 are rotatably connected, which can change the angle of the mechanical arm 6. The front of the mechanical arm 6 is rotatably connected to the bucket 7.
[0022] Specifically, the push-pull structure 5 includes a first hydraulic rod 501 and a second hydraulic rod 502. The first hydraulic rod 501 is installed between the excavator body 11 and the robotic arm 6. The second hydraulic rod 502 is installed above the first hydraulic rod 501 between the excavator body 11 and the robotic arm 6. When the first hydraulic rod 501 retracts and the second hydraulic rod 502 extends outward, the robotic arm 6 will rotate downward. Similarly, when the first hydraulic rod 501 extends outward and the second hydraulic rod 502 retracts, the robotic arm 6 will rotate upward.
[0023] Furthermore, a limiting toothed cutter 8 is rotatably connected above the bucket 7 and below the robotic arm 6. By installing the limiting toothed cutter 8 above the bucket 7 and below the robotic arm 6, the lower end of the limiting toothed cutter 8 is in a serrated state, which can cooperate with the bucket 7 to hold objects with relatively smooth surfaces, reducing the possibility of objects falling off the surface of the bucket 7.
[0024] Furthermore, a control lever 9 is installed on the upper end of the control box 3, and a dustproof plate 4 is rotatably connected to the front end of the control box 3. The highest point of the dustproof plate 4 is higher than the height of the seat 1. The dustproof plate 4 can rotate under the action of external force. When the dustproof plate 4 rotates upward to the highest point, it will block dust and other particles from the front of the driver to a certain extent. It should be noted that the dustproof plate 4 is a transparent structure.
[0025] Furthermore, the adjustment structure 2 includes a sliding rod 201, a fixed rod 202, and a rotating plate. Two rotating rods 203 are rotatably connected to the rear end of the excavator body 11. A fixed rod 202 is rotatably connected to the inner side of each of the two rotating rods 203. A sliding rod 201 is threaded between the two fixed rods 202. The front end of the sliding rod 201 is connected to the lower rear end of the hydraulic cylinder. When the two rotating rods 203 rotate downward, they will drive the two fixed rods 202 and the sliding rod 201 to rotate downward, thereby driving the seat to rotate downward to lower the height of the seat. The sliding rod 201 is connected to the seat 1 through the first hydraulic rod 10. The horizontal position of the seat 1 can be changed by changing the position of the sliding rod 201 between the fixed rods 202.
[0026] Furthermore, multiple mounting holes 12 are arrayed on the surfaces of both the sliding rod 201 and the fixed rod 202. By aligning the mounting holes 12 of the sliding rod 201 and the fixed rod 202 and then fixing them with bolts, the positions of the two fixed rods 202 and the sliding rod 201 can be positioned, thereby enhancing stability.
[0027] The method of use in this embodiment is as follows: The distance between the seat 1 and the adjustment structure 2 can be changed by the third hydraulic rod 10. When the third hydraulic rod 10 retracts, the height of the seat 1 will decrease. Seats 1 of different heights can be used for drivers of different heights. By rotating the height of the adjustment structure 2, the seat 1 can be gradually brought closer to the ground, eliminating the need for the driver to climb the excavator to enter the seat 1, thus reducing the driver's physical exertion. Then, the adjustment structure 2 is reset. According to the driver's body size, the relative position of the sliding rod 201 and the fixed rod 202 is changed, thereby changing the horizontal distance between the seat 1 and the control box 3 to select the most comfortable position for the driver. Finally, the excavator is controlled by the control lever 9.
[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A mini-excavator comprising a seat (1) and an excavator body (11), characterized in that: The upper end of the excavator body (11) is provided with a control box (3), the rear end of the excavator body (11) is rotatably connected with an adjusting structure (2), the upper end of the adjusting structure (2) is slidably connected with an inclined third hydraulic rod (10), the upper end of the third hydraulic rod (10) is connected with the lower end of a seat (1), the front end of the control box (3) is provided with a push-pull structure (5), the front end of the push-pull structure (5) is rotatably connected with a mechanical arm (6), and the front end of the mechanical arm (6) is rotatably connected with a bucket (7).
2. The compact excavator of claim 1, wherein: The push-pull structure (5) comprises a first hydraulic rod (501) and a second hydraulic rod (502), the first hydraulic rod (501) is arranged between the excavator body (11) and the mechanical arm (6), and the second hydraulic rod (502) is arranged above the first hydraulic rod (501).
3. The compact excavator of claim 1, wherein: The bucket (7) is rotatably connected with a limiting gear cutter (8) below the mechanical arm (6).
4. The compact excavator of claim 1, wherein: The upper end of the control box (3) is provided with a control rod (9), the front end of the control box (3) is rotatably connected with a dustproof plate (4), and the highest end of the dustproof plate (4) is higher than the height of the seat (1).
5. The compact excavator of claim 1, wherein: The adjusting structure (2) comprises a sliding rod (201), a fixed rod (202) and a rotating plate, the rear end of the excavator body (11) is rotatably connected with two rotating rods (203), the inner sides of the two rotating rods (203) are rotatably connected with a fixed rod (202), the sliding rod (201) is threadedly connected between the two fixed rods (202), and the front end of the sliding rod (201) is connected with the lower rear end of a hydraulic cylinder.
6. The compact excavator of claim 5, wherein: The surfaces of the sliding rod (201) and the fixed rod (202) are both arrayed with a plurality of mounting holes (12).