An excavator assist device with quick-change work components

Abstract

A kind of excavator auxiliary device of quick replaceable operating part, including bottom plate, the upper part of bottom plate is provided with upper connecting part for connecting excavator, the lower part of bottom plate is provided with lower connecting part for connecting tool;Lower connecting part includes first positioning slot and second positioning slot, second positioning slot is rotatably provided with lock head for locking tool pin shaft;Simple structure, easy to install, directly change pressure on tool can complete positioning, then fixed by two-point pin shaft, complete installation, it has obvious effect for improving work efficiency, while the cost of quick-change auxiliary device is also greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of excavator technology, and more specifically to an excavator auxiliary device that allows for quick replacement of working parts. Background Technology

[0002] During the use of excavators, due to different working scenarios, it is necessary to frequently change buckets and other accessories. Quick-change devices can help operators quickly switch bucket accessories. However, most existing quick-change devices use hydraulic quick-change cylinders to lock the accessory pins, which is costly and requires two hydraulic cylinder oil pipes, resulting in many oil pipes in the working device. These oil pipes are easily damaged during operation, and the operation of switching bucket accessories is inconvenient and inefficient. Utility Model Content

[0003] One advantage of this invention is that it provides an excavator auxiliary device that allows for quick replacement of working parts. It has a simple structure and is easy to install. The quick-change device can be positioned by simply pressing it onto the attachment, and then fixed by two pins to complete the installation. This has a significant effect on improving work efficiency, while also greatly reducing the cost of the quick-change auxiliary device.

[0004] To achieve at least one of the above advantages of this utility model, this utility model provides an excavator auxiliary device that allows for quick replacement of working parts, including a base plate, an upper connecting part for connecting to the excavator is provided on the upper part of the base plate, and a lower connecting part for connecting attachments is provided on the lower part of the base plate.

[0005] The lower connecting part includes a first positioning groove and a second positioning groove, and a lock head for locking the accessory pin is rotatably provided in the second positioning groove.

[0006] According to one embodiment of the present invention, the upper connecting part includes two parallel ear plates, and the ear plates are provided with two ear plate holes.

[0007] According to one embodiment of the present invention, a flat plate for strengthening the structure is provided between the two ear plates, and the two ends of the flat plate are fixedly connected to the two ear plates respectively.

[0008] According to one embodiment of the present invention, the lower connecting part includes two parallel side plates, and a plurality of reinforcing plates are provided between the side plates. The upper end of the reinforcing plate is fixedly connected to the bottom plate, and the two ends of the reinforcing plate are respectively fixedly connected to the two side plates.

[0009] According to one embodiment of the present invention, one end of the side plate is provided with a first positioning groove that extends laterally, and the inner end of the first positioning groove is provided with a semi-circular arc surface that is adapted to the pin.

[0010] According to one embodiment of the present invention, a second positioning groove extending vertically is provided at the other end of the side plate, and a semi-circular arc surface adapted to the pin is provided at the upper end of the second positioning groove.

[0011] According to one embodiment of the present invention, a rotating shaft is provided on the side plate near the second positioning groove. The locking block is rotatably mounted on the side plate via the rotating shaft. The locking block has an arc-shaped structure with a top head at one end and a lock head at the other end. The lock head and the top head are respectively provided with a first pin hole and a second pin hole that pass through laterally. The side plate is also provided with a first lock hole that matches the first pin hole and a second lock hole that matches the second pin hole. When the locking block is rotated to the locked state, the first pin hole and the first lock hole coincide and a first locking rod is provided through both of them. The second pin hole and the second lock hole coincide and a second locking rod is provided through both of them.

[0012] According to one embodiment of the present invention, when the locking block is rotated to the open state, the top head is located below the second positioning groove. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the locked state structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention in the open state;

[0015] In the attached diagram: 1. Ear plate, 2. Ear plate hole, 3. Base plate, 4. Side plate, 5. Lock block, 6. First positioning groove, 7. Rotating shaft, 8. Second positioning groove, 9. Lock head, 10. First lock hole, 11. Reinforcing plate, 12. Second lock hole, 13. First pin hole, 14. Second pin hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 ~Appendix Figure 2 The present invention will be described in more detail below.

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0018] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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, the above terms should not be construed as limitations on this utility model.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] This utility model provides an excavator auxiliary device for quick replacement of working parts, including a base plate 3. The upper part of the base plate 3 has an upper connecting part for connecting to the excavator, and the lower part of the base plate 3 has a lower connecting part for connecting attachments. The lower connecting part includes a first positioning groove 6 and a second positioning groove 8. A locking head 9 for locking the attachment pin is rotatably provided in the second positioning groove 8. The upper connecting part includes two parallel ear plates 1, each ear plate having two ear plate holes 2. A flat plate for strengthening the structure is provided between the two ear plates 1, with both ends of the flat plate fixedly connected to the two ear plates 1. The lower connecting part includes two parallel side plates 4, with several reinforcing plates 11 provided between the side plates 4. The upper end of each reinforcing plate 11 is fixedly connected to the base plate 3, and both ends of each reinforcing plate 11 are fixedly connected to the two side plates 4. One end of each side plate 4 has a laterally extending first positioning groove 6, the inner end of which... The side plate 4 is provided with a semi-circular arc surface that matches the pin shaft; the other end of the side plate 4 is provided with a vertically extending second positioning groove 8, and the upper end of the second positioning groove 8 is provided with a semi-circular arc surface that matches the pin shaft; a rotating shaft 7 is provided on the side plate 4 near the second positioning groove 8, and the locking block 5 is rotatably mounted on the side plate 4 through the rotating shaft 7. The locking block 5 has an arc-shaped structure, with a top head at one end and a lock head 9 at the other end. The lock head 9 and the top head are respectively provided with a first pin hole 13 and a second pin hole 14 that pass through laterally. The side plate 4 is also provided with a first lock hole 10 that matches the first pin hole 13 and a second lock hole 12 that matches the second pin hole 14. When the locking block 5 is rotated to the locked state, the first pin hole 13 coincides with the first lock hole 10 and a first locking rod is provided through both inside. The second pin hole 14 coincides with the second lock hole 12 and a second locking rod is provided through both inside. When the locking block 5 is rotated to the open state, the top head is located below the second positioning groove 8.

[0021] The first embodiment of this utility model is as follows:

[0022] An excavator auxiliary device with quick-change working parts includes a base plate 3. The upper part of the base plate 3 is provided with an upper connecting part for connecting the excavator. The upper connecting part includes two parallel ear plates 1. The ear plates 1 are provided with two ear plate holes 2. The ear plates 1 are connected to the excavator's stick through the ear plate holes 2. A flat plate is also provided between the two ear plates 1 to strengthen the structure. The two ends of the flat plate are fixedly connected to the two ear plates 1 respectively.

[0023] The lower part of the base plate 3 is provided with a lower connecting part for connecting attachments. The lower connecting part includes two parallel side plates 4. Several reinforcing plates 11 are provided between the side plates 4. The upper end of the reinforcing plate 11 is fixedly connected to the base plate 3. The two ends of the reinforcing plate 11 are fixedly connected to the two side plates 4 respectively. One of the reinforcing plates 11 is located near the second positioning groove 8 to improve the structural strength at this location and prevent the end of the side plate 4 from tearing when subjected to impact.

[0024] One end of the side plate 4 is provided with a first positioning groove 6 extending laterally. The inner end of the first positioning groove 6 is provided with a semi-circular arc surface that matches the pin. The other end of the side plate 4 is provided with a second positioning groove 8 extending vertically. The upper end of the second positioning groove 8 is provided with a semi-circular arc surface that matches the pin. The opening and extension directions of the first positioning groove 6 and the second positioning groove 8 are different and perpendicular to each other. In use, the first positioning groove 6 is first inserted into one pin of the attachment. Then, the quick-change auxiliary device is driven by the hydraulic system to press down so that the second positioning groove 8 is inserted into the other pin of the attachment. The first positioning groove 6 does not need to be closed and has a natural locking effect. Locking can be completed by simply locking the second positioning groove 8.

[0025] A rotating shaft 7 is provided on the side plate 4 near the second positioning groove 8, and the rotating shaft 7 is located between the first positioning groove 6 and the second positioning groove 8. The locking block 5 is rotatably mounted on the side plate 4 via the rotating shaft 7. The locking block 5 has an arc-shaped structure, with a top head at one end and a locking head 9 at the other end. When the locking block 5 is rotated to the open state, the top head is located below the second positioning groove 8. As the pin is engaged in the second positioning groove 8 and moves upward, the top head is always in contact with the pin until the pin contacts the arc surface at the top of the second positioning groove 8. The top head is always pushed by the pin and rotates counterclockwise. When in contact, the lock head 9 rotates to the locked position. The lock head 9 and the top are respectively provided with a first pin hole 13 and a second pin hole 14 that pass through laterally. The side plate 4 is also provided with a first lock hole 10 that matches the first pin hole 13 and a second lock hole 12 that matches the second pin hole 14. When the lock block 5 rotates to the locked state, the first pin hole 13 and the first lock hole 10 coincide and a first locking rod is provided through both. The second pin hole 14 and the second lock hole 12 coincide and a second locking rod is provided through both. The first locking rod and the second locking rod form a two-point locking, so that the lock block 5 firmly locks the pin in the second positioning groove 8.

[0026] Each of the pins mentioned in this application can be locked by conventional means in the prior art, such as by locking with a T-type pin.

[0027] This application not only eliminates the need for hydraulic cylinder installation, but also features a very convenient locking mechanism. The first half of the locking operation can be completed during installation by simply inserting the pin.

[0028] It should be noted that the terms "first, second, and third" used in this utility model are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. An excavator auxiliary device with quick-change working parts, characterized in that: Includes a base plate, the upper part of which is provided with an upper connecting part for connecting an excavator, and the lower part of which is provided with a lower connecting part for connecting attachments; The lower connecting part includes a first positioning groove and a second positioning groove, and a lock head for locking the attachment pin is rotatably provided in the second positioning groove.

2. The excavator auxiliary device with quick-change working parts according to claim 1, characterized in that: The upper connecting part includes two parallel ear plates, and the ear plates are provided with two ear plate holes.

3. The excavator auxiliary device with quick-change working parts according to claim 2, characterized in that: A plate for strengthening the structure is also provided between the two ear plates, and the two ends of the plate are fixedly connected to the two ear plates respectively.

4. The excavator auxiliary device with quick-change working parts according to claim 1, characterized in that: The lower connecting part includes two parallel side plates, and a plurality of reinforcing plates are provided between the side plates. The upper end of the reinforcing plate is fixedly connected to the bottom plate, and the two ends of the reinforcing plate are fixedly connected to the two side plates respectively.

5. The excavator auxiliary device with quick-change working parts according to claim 4, characterized in that: One end of the side plate is provided with a first positioning groove that extends laterally, and the inner end of the first positioning groove is provided with a semi-circular arc surface that is adapted to the pin.

6. The excavator auxiliary device with quick-change working parts according to claim 4, characterized in that: The other end of the side plate is provided with a vertically extending second positioning groove, and the upper end of the second positioning groove is provided with a semi-circular arc surface that matches the pin.

7. The excavator auxiliary device with quick-change working parts according to claim 6, characterized in that: A pivot is provided on the side plate near the second positioning groove. A locking block is rotatably mounted on the side plate via the pivot. The locking block has an arc-shaped structure, with a top at one end and a lock head at the other end. The lock head and the top are respectively provided with a first pin hole and a second pin hole that pass through laterally. The side plate is also provided with a first lock hole that matches the first pin hole and a second lock hole that matches the second pin hole. When the locking block is rotated to the locked state, the first pin hole and the first lock hole coincide and a first locking rod is provided through both of them. The second pin hole and the second lock hole coincide and a second locking rod is provided through both of them.

8. The excavator auxiliary device with quick-change working parts according to claim 7, characterized in that: When the locking block is rotated to the open state, the top head is located below the second positioning groove.

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