Loader-digger capable of automatically switching modes by rotating seat

Abstract

The utility model discloses a backhoe loader capable of automatically switching modes by rotating a seat, which comprises a loader main body, the loader main body is provided with the seat on a bottom plate in a cab, and the backhoe loader is characterized in that the bottom plate is provided with a rotating cavity matched with the seat, the cross section of the rotating cavity is elliptical, and the seat is arranged in the rotating cavity. A short shaft of the rotating cavity is located on the straight line where operation tools at the two ends of the loader body are located, a rotating self-adjusting structure is arranged in the rotating cavity, and after the seat rotates in place through the rotating self-adjusting structure, the corresponding working modes are automatically switched and adjusted. By means of the rotating self-adjusting structure, when an operator rotates the seat, the functions of adjusting the operation distance and switching the operation modes can be automatically achieved at the same time, the operator can directly conduct operation after rotating the seat, and the use experience of the operator is improved.

Description

Technical Field

[0001] This utility model relates to the field of excavator loader technology, and in particular to an excavator loader that automatically switches modes by rotating a seat. Background Art

[0002] A backhoe loader is a type of construction machinery with a digging bucket at one end and a shovel bucket at the other. Operators need to select the appropriate working device based on actual needs. Currently, a common approach is to install a mode switch (such as a button) in the cab to switch between different working modes. The operator then needs to rotate the seat to align with the tool before operating it. The drawback of this method is that the cab of a backhoe loader is relatively small. After rotating the seat, the operator must further adjust its position to achieve the optimal operating distance, and then operate the mode switch. This makes the operation process cumbersome and the user experience poor. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose an excavator loader that automatically switches modes by rotating the seat. It can reach the optimal operating distance after the operator rotates the seat and automatically switch the working mode, so that the operator can start operating directly after rotating the seat, thereby improving the operator's user experience.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides an excavator loader that automatically switches modes via a rotating seat. It includes a loader body with a seat mounted on the floor of the cab. A rotating cavity, shaped like an ellipse, is formed on the floor to mate with the seat. The minor axis of the rotating cavity lies on the straight line of the working tools at both ends of the loader body. A self-adjusting rotating structure, comprising an eccentric block and a sliding block, is installed inside the rotating cavity. A groove, mates with the sliding block, is formed at the bottom of the rotating cavity along the straight line of the working tools at both ends of the loader body. The sliding block and the groove are slidably connected. One end of the eccentric block is rotatably connected to the sliding block, and the side of the other end abuts against the side wall of the rotating cavity. The length 'a' of the minor axis of the rotating cavity is equal to the distance 'b' between the two ends of the eccentric block. After the seat rotates into position via the self-adjusting rotating structure, it automatically switches to the corresponding working mode.

[0006] In order to enable the eccentric block to rotate when the seat is rotated, a rotating shaft is also provided on the eccentric block. One end of the rotating shaft is fixedly connected to the eccentric block, and the other end is fixedly connected to the bottom of the seat. The axial direction of the rotating shaft is perpendicular to the plane of the base plate.

[0007] The eccentric rotating block has a switching groove at one end that abuts against the side wall of the rotating cavity. The switching groove is convex in shape and contains a switching head and a switching spring. One end of the switching spring is fixedly connected to the tail of the switching head, and the other end is fixedly connected to the tail of the switching groove. The side wall of the rotating cavity has connecting parts at both ends of the short axis that cooperate with the switching head. The connecting parts contain mode switching sensors. When the seat rotates the eccentric rotating block to the direction of the short axis of the rotating cavity, the switching spring pushes the switching head toward the connecting parts to switch the corresponding working mode.

[0008] After the seat rotates, although the pressure provides a certain degree of stability for the operator when sitting on it, a positioning mechanism is also provided at the bottom of the seat to further improve stability and safety during operation. The positioning mechanism includes a positioning handle and a positioning pin, and a positioning groove that mates with the positioning pin is also provided on the base plate. After the seat rotates, the positioning handle drives the positioning pin to insert into the positioning groove to prevent the seat from rotating. A partition plate that mates with the rotating cavity is also provided on the base plate. The partition plate is detachably connected to the base plate to ensure the sealing of the rotating cavity.

[0009] The beneficial effects of the utility model are:

[0010] This invention utilizes a self-adjusting rotating structure to automatically adjust the operating distance and switch work modes simultaneously when the operator rotates the seat, thus reducing operator workload. The optimal operating distance is achieved immediately after the operator rotates the seat, and the work mode is automatically switched, allowing the operator to begin operation immediately after rotation and improving the user experience. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the principle of an excavator loader that automatically switches modes by rotating the seat, provided in a specific embodiment of this utility model;

[0012] Figure 2 This is an exploded view of the seat and floor of an excavator loader that automatically switches modes by rotating the seat, as provided in a specific embodiment of this utility model.

[0013] Figure 3This is a structural schematic diagram of the top-facing connection of the switching head provided in a specific embodiment of this utility model;

[0014] Figure 4 yes Figure 3 A is an enlarged schematic diagram;

[0015] Figure 5 This is a structural schematic diagram of the switching head not pointing towards the connecting part in a specific embodiment of this utility model;

[0016] Figure 6 yes Figure 5 Enlarged diagram of B in the middle;

[0017] Figure 7 This is a schematic diagram of the principle of the rotational self-adjusting structure provided in a specific embodiment of this utility model;

[0018] In the picture:

[0019] 1. Base plate; 2. Seat; 11. Rotating cavity; 12. Rotating self-adjusting structure; 121. Eccentric rotating block; 122. Slide seat; 111. Slide groove; 123. Rotating shaft; 124. Switching groove; 125. Switching head; 126. Switching spring; 112. Connecting part; 21. Positioning handle; 22. Positioning pin; 13. Positioning groove; 14. Partition plate. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] As shown in the figure, this utility model provides an excavator loader that automatically switches modes via a rotating seat. It includes a loader body, a seat 2 mounted on a floor plate 1 within the cab of the loader body, and a rotating cavity 11 that mates with the seat 2. The rotating cavity 11 has an elliptical cross-section, and its minor axis lies on the straight line where the working tools at both ends of the loader body are located. A self-adjusting rotating structure 12 is provided within the rotating cavity 11. Specifically, the self-adjusting rotating structure 12 includes an eccentric rotating block 121 and a sliding block 122. A groove 111 mates with the sliding block 122 along the straight line where the working tools at both ends of the loader body are located. The sliding block 122 and the groove 111 are slidably connected. One side of the eccentric rotating block 121... One end is rotatably connected to the slide block 122, and the other end's side abuts against the side wall of the rotating cavity 11. The length a of the minor axis of the rotating cavity 11 is equal to the distance b between the two ends of the eccentric rotating block 121. In this way, the eccentric rotating block 121 can rotate around the slide block 122, while the slide block 122 can slide within the groove 111 of the rotating cavity 11 (i.e., at both ends of the minor axis of the elliptical rotating cavity 11). Thus, when the eccentric rotating block 121 rotates within the rotating cavity 11, the slide block 122 moves at both ends of the groove 111. When the end of the eccentric rotating block 121 farther from the slide block 122 approaches one end of the minor axis of the rotating cavity 11, the slide block 122 also approaches the other end of the minor axis of the rotating cavity 11 accordingly. Based on this principle, the rotating seat 2 can be rotated. The mode switching, i.e., after the seat 2 rotates to its position via the self-adjusting structure 12, automatically switches to the corresponding working mode, requires that the seat 2 can drive the eccentric block 121 to rotate. Furthermore, the axis of rotation of the eccentric block 121 driven by the seat 2 must be the same as the axis of rotation of the eccentric block 121 around the slide seat 122. Specifically, the eccentric block 121 is also equipped with a rotating shaft 123, one end of which is fixedly connected to the eccentric block 121, and the other end is fixedly connected to the bottom of the seat 2. The axial direction of the rotating shaft 123 is perpendicular to the plane of the base plate 1. That is, when the seat 2 rotates, it will drive the eccentric block 121 to rotate accordingly. In summary, assuming that initially, the loader body is in the loading mode using the bucket, i.e. When the operator is seated on seat 2 facing the bucket, the end of the eccentric block 121 that is farther from the slide 122 rotates to the end of the short axis of the rotating cavity 11 that is closer to the bucket, while the other end of the eccentric block 121 rotates to the end of the short axis of the rotating cavity 11 that is closer to the bucket. Conversely, when switching to the digging mode, the end of the eccentric block 121 that is farther from the slide 122 rotates to the end of the short axis of the rotating cavity 11 that is closer to the bucket, while the other end of the eccentric block 121 rotates to the end of the short axis of the rotating cavity 11 that is closer to the bucket. In this way, as the operator rotates seat 2, the slide 122 can automatically move at both ends of the slide groove 111, thereby driving seat 2 to adjust the distance, so that the operator is always at a relatively comfortable operating distance during operation.To enable automatic switching of operating modes while rotating the seat 2, a switching groove 124 is provided at one end of the eccentric rotating block 121 that abuts against the side wall of the rotating cavity 11. The switching groove 124 is convex in shape and contains a switching head 125 and a switching spring 126. One end of the switching spring 126 is fixedly connected to the tail of the switching head 125, and the other end is fixedly connected to the tail of the switching groove 124. Under the action of the switching spring 126, the switching head 125 can be pushed out. Furthermore, connecting portions 112 that cooperate with the switching head 125 are provided at both ends of the short axis on the side wall of the rotating cavity 11. Mode switching sensors are provided in the connecting portions 112. When the seat 2 rotates the eccentric rotating block 121 to the direction of the short axis of the rotating cavity 11, the switching spring 126 pushes the switching head 125 towards the connecting portion 125. The connecting part 112 switches to the corresponding working mode. During this process, when the switching sensor of the connecting part 112 senses the pressure signal of the switching head 125, it can transmit the information to the central control system to directly realize the switching of the corresponding working mode. The technical solution described in this embodiment realizes the recognition and transmission of the mode switching signal through mechanical pressure, and equivalent effects can also be achieved through photoelectric sensing structures, etc. In this way, the operator can automatically adjust the operating distance and switch the working mode while rotating the seat. The optimal operating distance can be reached immediately after the operator rotates the seat, and the working mode can be automatically switched at the same time, so that the operator can start operating directly after rotating the seat, effectively improving the user experience of the operator and avoiding some misoperation behaviors.

[0022] After the seat 2 rotates, in order to further ensure the stability of the operator sitting on the seat 2, a positioning mechanism is also provided at the bottom of the seat 2. The positioning mechanism includes a positioning handle 21 and a positioning pin 22. The base plate 1 is also provided with a positioning groove 13 that cooperates with the positioning pin 22. After the seat 2 rotates, the positioning handle 21 drives the positioning pin 22 to insert into the positioning groove 13. Similarly, this embodiment also illustrates a positioning method in a mechanical way, but it is also possible to set some electronic control components to remember the automatic operation of positioning and limiting, which will not be described in detail here. Preferably, the base plate 1 is also provided with a partition 14 that cooperates with the rotating cavity 11. The partition 14 is detachably connected to the base plate 1, so as to prevent some debris from falling into the rotating cavity 11 and affecting the normal operation of the entire structure.

[0023] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A loader that automatically switches modes via a rotating seat, comprising a loader body, wherein a seat (2) is provided on the floor (1) of the cab of the loader body, characterized in that: The base plate (1) has a rotating cavity (11) that cooperates with the seat (2). The cross-section of the rotating cavity (11) is elliptical. The short axis of the rotating cavity (11) is located on the straight line where the working tools at both ends of the loader body are located. A rotation self-adjusting structure (12) is provided inside the rotating cavity (11). After the seat (2) rotates into position through the rotation self-adjusting structure (12), it automatically switches and adjusts the corresponding working mode.

2. The excavator loader with automatic mode switching via a rotating seat according to claim 1, characterized in that: The self-adjusting rotating structure (12) includes an eccentric rotating block (121) and a slide block (122). The bottom of the rotating cavity (11) is provided with a groove (111) that cooperates with the slide block (122) along the straight line direction where the working tools at both ends of the loader body are located. The slide block (122) and the groove (111) are slidably connected. One end of the eccentric rotating block (121) is rotatably connected to the slide block (122), and the side of the other end abuts against the side wall of the rotating cavity (11). The minor axis length a of the rotating cavity (11) is equal to the distance b between the two ends of the eccentric rotating block (121).

3. The excavator loader with automatic mode switching via a rotating seat according to claim 2, characterized in that: The eccentric rotating block (121) is also provided with a rotating shaft (123). One end of the rotating shaft (123) is fixedly connected to the eccentric rotating block (121), and the other end is fixedly connected to the bottom of the seat (2). The axial direction of the rotating shaft (123) is perpendicular to the plane of the base plate (1).

4. The excavator loader with automatic mode switching via a rotating seat according to claim 2, characterized in that: The eccentric rotating block (121) abuts against the side wall of the rotating cavity (11) and has a switching groove (124) at one end. The switching groove (124) is convex in shape. A switching head (125) and a switching spring (126) are provided in the switching groove (124). One end of the switching spring (126) is fixedly connected to the tail of the switching head (125), and the other end is fixedly connected to the tail of the switching groove (124). The rotating cavity (11) has connecting parts (112) at both ends of the short axis on the side wall, which cooperate with the switching head (125). A mode switching sensor is provided in the connecting part (112). When the seat (2) drives the seat to rotate to the direction of the short axis of the rotating cavity (11), the switching spring (126) pushes the switching head (125) against the connecting part (112) to switch the corresponding working mode.

5. A loader for excavating and loading machines that automatically switch modes via a rotating seat according to claim 3, characterized in that: The bottom of the seat (2) is also provided with a positioning mechanism, which includes a positioning handle (21) and a positioning pin (22). The base plate (1) is also provided with a positioning groove (13) that cooperates with the positioning pin (22). After the seat (2) is rotated, the positioning handle (21) drives the positioning pin (22) to insert into the positioning groove (13).

6. The excavator loader with automatic mode switching via a rotating seat according to claim 1, characterized in that: The base plate (1) is also provided with a partition plate (14) that cooperates with the rotating cavity (11), and the partition plate (14) is detachably connected to the base plate (1).

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