Grab bucket capable of changing volume

Abstract

The utility model discloses a grab bucket capable of changing volume, which is characterized in that the upper ends of a plurality of driving cylinders are rotatably mounted at the upper end of the outer wall of a mounting column, and the plurality of driving cylinders are sequentially arranged along the circumferential direction of the mounting column; the upper ends of the claw petals are rotationally mounted at the lower end of the outer wall of the mounting column, the lower end of each driving air cylinder is rotationally mounted on one surface of the corresponding claw petal, and the driving air cylinders drive the lower ends of the claw petals to be close to or away from one another; a mounting space is formed in the mounting column, an opening is formed in the lower surface of the mounting column, and the opening is communicated with the mounting space; the lifting air cylinder is installed in the installation space, the telescopic plate assembly is installed at the output end of the lifting air cylinder, the lifting air cylinder drives the telescopic plate assembly to move in the vertical direction, and the outer wall of the telescopic plate assembly abuts against the other surfaces of the multiple claw petals. The telescopic plate assembly is driven by the lifting air cylinder to move, then the overall volume of the grab bucket is changed, objects of different sizes are grabbed, and the grabbing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of grabs and related fields, and in particular to a grab that can change its volume. Background Technology

[0002] Traditional grab buckets typically have a fixed volume, suitable for grabbing materials of a certain size. However, when faced with materials of different sizes or shapes, a fixed-volume grab bucket often cannot provide sufficient flexibility. This limitation may lead to low grabbing efficiency, or problems such as incomplete gripping or material spillage during processing. Utility Model Content

[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a grab bucket with an adjustable volume, comprising:

[0004] Mounting column, several drive cylinders, several claw flaps, lifting cylinder, telescopic plate assembly;

[0005] The upper ends of several driving cylinders are rotatably mounted on the upper end of the outer wall of the mounting column, and the several driving cylinders are arranged sequentially along the circumference of the mounting column.

[0006] The upper ends of several claw flaps are rotatably mounted on the lower end of the outer wall of the mounting column, and the lower end of each driving cylinder is rotatably mounted on a surface of a corresponding claw flap. The several driving cylinders drive the lower ends of several claw flaps to move closer to or further away from each other.

[0007] The mounting column has an installation space inside, and an opening is formed on the lower surface of the mounting column, which communicates with the installation space.

[0008] The lifting cylinder is installed in the installation space, the telescopic plate assembly is installed at the output end of the lifting cylinder, the lifting cylinder drives the telescopic plate assembly to move in the vertical direction, and the outer wall of the telescopic plate assembly abuts against the other surface of the plurality of claw petals;

[0009] The telescopic plate assembly includes: a main board, several sub-plates, several rubber connecting pieces, and several telescopic cylinders. The upper surface of the main board is mounted on the output end of the lifting cylinder. The lower surfaces of the several sub-plates are slidably mounted on the upper surface of the main board. The several sub-plates are arranged sequentially along the circumference of the main board. The several telescopic cylinders are all mounted on the upper surface of the main board. One end of each sub-plate is connected to the output end of a corresponding telescopic cylinder. Each telescopic cylinder drives a corresponding sub-plate to move in a direction closer to or farther from the center of the main board. The two sides of each rubber connecting piece are connected to the adjacent sides of two adjacent sub-plates.

[0010] The aforementioned grab bucket with adjustable volume further includes: a plurality of sliders, wherein the upper surface of the main board is provided with a plurality of grooves, the upper surfaces of the plurality of sliders are mounted in pairs on the lower surfaces of the plurality of sub-boards, and the plurality of sliders are installed in the plurality of grooves.

[0011] In the above-mentioned grab bucket with adjustable volume, the number of the sub-plate, the rubber connecting piece, and the telescopic cylinder are all four.

[0012] The aforementioned grab bucket with variable volume has six drive cylinders and six claw flaps.

[0013] The aforementioned grab bucket with variable volume, wherein each of the claw flaps is arranged in an arc shape.

[0014] The above-mentioned grab bucket with variable volume includes, in which each claw flap comprises: a first panel and a second panel arranged in an arc shape, and two side plates arranged in a curved shape; the top ends of the two side plates are rotatably mounted on the outer wall of the mounting post, the first panel and the second panel are respectively mounted on the outer side walls of the two side plates, and the bottom ends of the first panel, the bottom ends of the second panel and the bottom ends of the two side plates are close to each other to surround and form the claw flap.

[0015] The aforementioned grab bucket with adjustable volume further includes: a plurality of reinforcing plates; the two ends of the plurality of reinforcing plates are respectively mounted on any of the side plates and the first panel.

[0016] In one of the above-mentioned grab buckets with variable volume, the two side plates are mounted to the outer wall of the mounting column via a connecting shaft.

[0017] The aforementioned grab bucket with adjustable volume further includes: a protective sleeve: the protective sleeve is fitted over the lower end of the first panel, the lower end of the second panel, and the lower ends of the two side panels.

[0018] In the aforementioned grab bucket with adjustable volume, the width of the first panel is set to first increase and then decrease from top to bottom.

[0019] Based on the above, this utility model also has the following embodiments:

[0020] By applying this utility model, a grab bucket with an adjustable volume is provided. The telescopic plate assembly is moved by a lifting cylinder, thereby changing the overall volume of the grab bucket to grab objects of different sizes and improve grabbing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the closing of a grab bucket with adjustable volume according to the present invention;

[0022] Figure 2 This is a schematic diagram of the opening of a grab bucket with adjustable volume according to the present invention;

[0023] Figure 3 This is a schematic diagram of a telescopic plate assembly for a grab bucket with adjustable volume according to the present invention.

[0024] 1. Mounting column; 2. Drive cylinder; 3. Claw flap; 4. Lifting cylinder; 5. Telescopic plate assembly; 6. Main board; 7. Sub-board; 8. Rubber connecting piece; 9. Telescopic cylinder; 10. First panel; 11. Second panel; 12. Side plate; 13. Connecting shaft; 14. Reinforcing plate; 15. Protective sleeve. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0026] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0027] like Figures 1 to 3 As shown, a preferred embodiment of a grab bucket with variable volume is illustrated, comprising: mounting post 1, a plurality of drive cylinders 2, a plurality of claw flaps 3, lifting cylinder 4, and telescopic plate assembly 5.

[0028] The upper ends of several driving cylinders 2 are rotatably mounted on the upper end of the outer wall of the mounting column 1, and the several driving cylinders 2 are arranged sequentially along the circumference of the mounting column 1; the upper ends of several claw petals 3 are rotatably mounted on the lower end of the outer wall of the mounting column 1, and the lower end of each driving cylinder 2 is rotatably mounted on a surface of a corresponding claw petal 3, and the several driving cylinders 2 drive the lower ends of the several claw petals 3 to move closer or further away from each other; the mounting column 1 has an installation space, and an opening is opened on the lower surface of the mounting column 1, which communicates with the installation space; the lifting cylinder 4 is installed in the installation space, and the telescopic plate assembly 5 is installed at the output end of the lifting cylinder 4, and the lifting cylinder 4 is used to drive the telescopic plate assembly 5 to move in the vertical direction, and the outer wall of the telescopic plate assembly 5 abuts against the other surface of the several claw petals 3;

[0029] The telescopic plate assembly 5 includes: a main plate 6, several sub-plates 7, several rubber connecting pieces 8, and several telescopic cylinders 9. The upper surface of the main plate 6 is mounted on the output end of the lifting cylinder 4. The lower surfaces of the several sub-plates 7 are slidably mounted on the upper surface of the main plate 6. The several sub-plates 7 are arranged sequentially along the circumference of the main plate 6. The several telescopic cylinders 9 are all mounted on the upper surface of the main plate 6. One end of each sub-plate 7 is connected to the output end of a corresponding telescopic cylinder 9. Each telescopic cylinder 9 drives the corresponding sub-plate 7 to move in a direction close to or away from the center of the main plate 6. The two sides of each rubber connecting piece 8 are connected to the two adjacent sub-plates 7 that are close to each other.

[0030] In actual use, with the grab bucket in the closed state, the lifting cylinder 4 drives the main plate 6 downwards. Then, each telescopic cylinder 9 drives its corresponding auxiliary plate 7 to move away from the center of the main plate 6. At this time, the outer walls of several auxiliary plates 7 abut against the other surfaces of several claw petals 3, thereby reducing the volume of the grab bucket, and then it can start grabbing objects. Conversely, when the lifting cylinder 4 drives the main plate 6 upwards, each telescopic cylinder 9 drives its corresponding auxiliary plate 7 to move closer to the center of the main plate 6, thereby increasing the volume of the grab bucket to grab objects of different sizes. Several rubber connecting pieces 8 are used to connect adjacent auxiliary plates 7, thereby ensuring the overall sealing of the telescopic plate assembly 5 to facilitate object grabbing.

[0031] Based on the above, this utility model also has the following embodiments:

[0032] Furthermore, a grab bucket with variable volume further includes: a plurality of sliders; a plurality of grooves are formed on the upper surface of the main plate 6; the upper surfaces of the sliders are mounted in pairs on the lower surfaces of the sub-plates 7; and the sliders are installed within the grooves. Furthermore, the cooperation between the sliders and the grooves ensures the stability of the movement of the sub-plates 7.

[0033] Furthermore, a grab bucket with variable volume is provided, wherein there are four sub-plates 7, four rubber connecting plates 8, and four telescopic cylinders 9.

[0034] Furthermore, a grab bucket with variable volume is provided, wherein the number of drive cylinders 2 and claw flaps 3 are both six.

[0035] Furthermore, a grab bucket with variable volume is provided, wherein each claw flap 3 is arranged in an arc shape.

[0036] Furthermore, a grab with variable volume is provided, wherein each claw flap 3 includes: a first panel 10 and a second panel 11 arranged in an arc shape, and two side plates 12 arranged in a curved shape; the top ends of the two side plates 12 are rotatably mounted on the outer wall of the mounting post 1, the first panel 10 and the second panel 11 are respectively mounted on the outer side walls of the two side plates 12, and the bottom ends of the first panel 10, the second panel 11 and the two side plates 12 are close to each other to surround and form the claw flap 3. Specifically, a certain gap is provided between the top ends of the first panel 11, the second panel 12 and the two side plates 12, and the bottom ends of the first panel 11, the second panel 12 and the two side plates 12 are close to each other to form a pointed shape, thereby forming a claw flap 3 that is wider at the top and narrower at the bottom.

[0037] Furthermore, a grab bucket with an adjustable volume also includes: a plurality of reinforcing plates 14; the two ends of the plurality of reinforcing plates 14 are respectively mounted on either side plate 12 and the first panel 10.

[0038] Furthermore, a grab bucket with an adjustable volume is provided, wherein the two side plates 12 are mounted to the outer wall of the mounting column 1 via connecting shafts 13.

[0039] Furthermore, a grab bucket with adjustable volume also includes: a protective sleeve 15: the protective sleeve 15 is fitted onto the lower end of the first panel 10, the lower end of the second panel 11, and the lower ends of the side panels 12. Specifically, the protective sleeve 15 protects the claw flaps 3.

[0040] Furthermore, a grab bucket with variable volume is provided, wherein the width of the first panel 10 is configured to first increase and then decrease from top to bottom. This configuration of the first panel 10 increasing and then decreasing from top to bottom increases the gripping area of ​​the claw lobes 3, ensuring gripping efficiency.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A volume changeable grab, characterized in that, The utility model relates to a kind of installation column, several drive cylinders, several claw petals, lifting cylinder, telescopic plate assembly; The upper end of several drive cylinders is rotatably mounted to the upper end of the outer wall of the installation column, and several drive cylinders are sequentially arranged along the circumference of the installation column. The lower end of several claw petals is rotatably mounted to the outer wall of the installation column, the lower end of each drive cylinder is rotatably mounted to a surface of a corresponding claw petal, and several drive cylinders drive the lower end of several claw petals to approach or move away from each other. The installation column has an installation space, and the lower surface of the installation column is provided with an opening, and the opening is communicated with the installation space. The lifting cylinder is installed in the installation space, the telescopic plate assembly is installed on the output end of the lifting cylinder, the lifting cylinder drives the telescopic plate assembly to move in the vertical direction, and the outer wall of the telescopic plate assembly abuts against another surface of several claw petals. The telescopic plate assembly comprises a main plate, several sub-plates, several rubber connecting pieces and several telescopic cylinders, the upper surface of the main plate is installed on the output end of the lifting cylinder, the lower surface of each sub-plate is slidably mounted on the upper surface of the main plate, several sub-plates are sequentially arranged along the circumference of the main plate, each telescopic cylinder is installed on the upper surface of the main plate, one end of each sub-plate is connected with the output end of a corresponding telescopic cylinder, each telescopic cylinder drives the corresponding sub-plate to move in the direction of approaching or moving away from the center of the main plate, and the two sides of each rubber connecting piece are connected with the two sides of adjacent two sub-plates. Further comprising:

2. A volume changeable grab according to claim 1, characterized in that Several sliding blocks are provided on the upper surface of the main plate, and the upper surfaces of the sliding blocks are installed on the lower surfaces of the sub-plates. The number of sub-plates, rubber connecting pieces and telescopic cylinders is four.

3. A volume changeable grab according to claim 1, characterized in that The number of drive cylinders and claw petals is six.

4. A volume changeable grab according to claim 1, characterized in that, Each claw petal is arranged in an arc shape.

5. A volume changeable grab according to claim 1, characterized in that Each claw petal comprises a first panel and a second panel arranged in an arc shape, and two side plates arranged in a curved shape, the top ends of the two side plates are rotatably mounted to the outer wall of the installation column, the first panel and the second panel are respectively mounted to the outer side walls of the two side plates, and the bottom end of the first panel, the bottom end of the second panel and the bottom ends of the two side plates approach each other to form the claw petal.

6. A volume changeable grab according to claim 5, characterized in that Further comprising:

7. A variable volume clamshell grab according to claim 6 wherein, Several reinforcing plates are provided, and the two ends of each reinforcing plate are respectively mounted to any side plate and first panel. The two side plates are mounted to the outer wall of the installation column through a connecting shaft.

8. A volume changeable grab according to claim 6, characterized in that Further comprising:

9. A variable volume clamshell grab according to claim 6 wherein, A protective sleeve is provided on the lower end of the first panel, the lower end of the second panel and the lower ends of the two side plates. The width of the first panel increases first and then decreases from top to bottom.

10. A volume changeable grab according to claim 6, characterized in that ​

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