Grab bucket with load detection mechanism

Abstract

The utility model relates to the technical field of cranes, in particular to a grab bucket with a load detection mechanism, which comprises a connecting plate, a connecting frame and a connecting grab bucket, a grab bucket hydraulic rod is fixedly connected above the connecting frame, a grab bucket shaft is movably connected on the outer side of the connecting frame, a detection box is fixedly connected below the connecting plate, and a load detection mechanism is arranged on the detection box. A detection spring is fixedly connected to the upper portion of the connecting frame, a driving rod is fixedly connected to the upper portion of the connecting frame, the connecting plate is driven by the crane to move into a foundation pit, the connecting grab bucket is opened by starting the grab bucket hydraulic rod, the connecting grab bucket is driven by the grab bucket hydraulic rod to grab soil, and the soil is hoisted through the crane. When the soil in the crane reaches a certain total amount, the soil drives the detection button and the closed circuit to start the warning device to warn a worker that the weight of the grab bucket exceeds the standard, and when the grab bucket blades are damaged, the grab bucket blades are disassembled by rotating the connecting bolts and the movable bolts, and the grab bucket blades are rapidly replaced.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a grab bucket with a load detection mechanism. Background Technology

[0002] Early grabs were relatively simple, often consisting of manually operated mechanical devices. For example, when loading and unloading small cargo at ports, tools with ropes and simple clamps were used. These manual grabs relied on human power to pull the ropes to control the opening and closing of the clamps, resulting in limited gripping capacity and low efficiency. They were typically used for gripping lighter, smaller items, such as loading and unloading bagged goods at small docks.

[0003] However, the existing devices have the following problems:

[0004] 1. The existing equipment requires disassembling the grab bucket's movable shaft when the grab bucket is damaged, which makes it impossible to replace the damaged grab bucket in a timely manner, affecting construction efficiency.

[0005] 2. At the same time, some devices do not have a load detection mechanism for the grab bucket, which makes it easy to damage the grab bucket when the weight it grabs is too heavy, thus affecting the service life of the grab bucket.

[0006] Therefore, in order to solve the above problems, a grab bucket with a load detection mechanism is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a grab bucket with a load detection mechanism to solve the problems of existing cranes mentioned in the background section.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a grab bucket with a load detection mechanism, comprising a connecting plate, a connecting frame, and a connecting grab bucket. The connecting frame is disposed below the connecting plate, and the connecting grab bucket is disposed below the connecting frame. A grab bucket hydraulic rod is fixedly connected above the connecting frame. A movable rod is movably connected to the outer side of the grab bucket hydraulic rod. A grab bucket shaft is movably connected to the outer side of the connecting frame. A detection box is fixedly connected below the connecting plate. A detection spring is fixedly connected above the connecting frame. A driving rod is fixedly connected above the connecting frame. A detection button is fixedly connected inside the detection box.

[0009] Preferably, a fixing rod is fixedly connected above the connecting plate, and a fixing wire is fixedly connected above the fixing rod.

[0010] Preferably, a connecting rod is fixedly connected to the top of the connecting frame, and a connecting plate is fixedly connected to the top of the connecting rod.

[0011] Preferably, a grab bucket rod is fixedly connected to the top of the grab bucket, and a grab bucket connecting piece is fixedly connected to the outer side of the grab bucket rod.

[0012] Preferably, a movable shaft is fixedly connected to the outer side of the grab bucket hydraulic rod, a movable rod is movably connected to the inside of the movable shaft, a fixed shaft is movably connected to the outer side of the movable rod, a fixed plate is fixedly connected to the outer side of the fixed shaft, and a connecting bolt is fixedly connected to the outer side of the fixed plate.

[0013] Preferably, a movable bolt is fixedly connected to the outer side of the grab bucket shaft, and a grab bucket rotating rod is movably connected to the inner side of the grab bucket shaft.

[0014] Preferably, a detection spring is fixedly connected to the lower part of the detection box, a driving rod is fixedly connected inside the detection spring, a detection box is movably connected to the outer side of the driving rod, a detection plate is fixedly connected above the driving rod, a detection rod is fixedly connected below the detection plate, a detection button is movably connected below the detection rod, a limit rod is movably connected inside the connecting plate, and a limit bolt is fixedly connected above the limit rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a crane to move the connecting plate into the foundation pit. By activating the grab bucket hydraulic rod, the grab bucket hydraulic rod drives the movable shaft, the movable shaft drives the movable rod, the movable rod drives the fixed shaft, the fixed shaft drives the grab bucket connecting plate, and the grab bucket connecting plate drives the connecting grab bucket, opening the connecting grab bucket. The grab bucket hydraulic rod drives the connecting grab bucket to grab soil, and the crane lifts the soil. When the soil in the crane reaches a certain total amount, the soil drives the detection spring, the soil drives the driving rod, the driving rod drives the detection plate, the detection plate drives the detection rod, and the detection rod drives the detection button, closing the circuit and activating the warning device to warn the worker that the grab bucket weight has exceeded the limit. When the grab bucket blade is damaged, the grab bucket blade can be disassembled by rotating the bolts of the connecting bolt and the movable bolt, and the grab bucket blade can be quickly replaced.

[0016] 1. This utility model has a movable shaft fixedly connected to the outside of the grab bucket hydraulic rod, a movable rod movably connected inside the movable shaft, a fixed shaft movably connected to the outside of the movable rod, a fixed plate fixedly connected to the outside of the fixed shaft, a connecting bolt fixedly connected to the outside of the fixed plate, a movable bolt fixedly connected to the outside of the grab bucket shaft, and a grab bucket rotating rod movably connected inside the grab bucket shaft. This allows for quick replacement of the grab bucket, reducing the impact on construction efficiency.

[0017] 2. This utility model features a detection spring fixedly connected to the bottom of the detection box, a drive rod fixedly connected inside the detection spring, a detection box movably connected to the outside of the drive rod, a detection plate fixedly connected above the drive rod, a detection rod fixedly connected below the detection plate, a detection button movably connected below the detection rod, a limit rod movably connected inside the connecting plate, and a limit bolt fixedly connected above the limit rod. This design enables the detection of the load on the grab bucket, thereby improving its service life. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the grab bucket rod of this utility model.

[0020] Figure 3 This is a cross-sectional schematic diagram of the structural testing box of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection of the rotating rod of the grab bucket in this utility model.

[0022] Figure 5 This is a schematic diagram of the connection of the structural detection button of this utility model.

[0023] In the diagram: 1. Connecting plate; 101. Fixing rod; 102. Fixing wire; 2. Connecting frame; 201. Connecting rod; 202. Connecting disc; 3. Connecting grab bucket; 301. Grab bucket rod; 302. Grab bucket connecting piece; 4. Grab bucket hydraulic rod; 401. Movable shaft; 402. Movable rod; 403. Fixing shaft; 404. Fixing plate; 405. Connecting bolt; 5. Grab bucket shaft; 501. Movable bolt; 502. Grab bucket rotating rod; 6. Detection box; 601. Detection spring; 602. Driving rod; 603. Detection piece; 604. Detection button; 605. Detection rod; 606. Limiting rod; 607. Limiting bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 One embodiment provided by this utility model:

[0026] A grab bucket with a load detection mechanism includes a connecting plate 1, a connecting frame 2, and a connecting grab bucket 3. The connecting frame 2 is disposed below the connecting plate 1, and the connecting grab bucket 3 is disposed below the connecting frame 2. A grab bucket hydraulic rod 4 is fixedly connected to the upper part of the connecting frame 2. A movable rod 402 is movably connected to the outer side of the grab bucket hydraulic rod 4. A grab bucket shaft 5 is movably connected to the outer side of the connecting frame 2. A detection box 6 is fixedly connected to the lower part of the connecting plate 1. A detection spring 601 is fixedly connected to the upper part of the connecting frame 2. A drive rod 602 is fixedly connected to the upper part of the connecting frame 2. A detection button 604 is fixedly connected inside the detection box 6.

[0027] Furthermore, a movable shaft 401 is fixedly connected to the outer side of the grab bucket hydraulic rod 4, a movable rod 402 is movably connected inside the movable shaft 401, a fixed shaft 403 is movably connected to the outer side of the movable rod 402, a fixed plate 404 is fixedly connected to the outer side of the fixed shaft 403, and a connecting bolt 405 is fixedly connected to the outer side of the fixed plate 404. By driving the grab bucket 3 through the grab bucket hydraulic rod 4, soil can be grabbed.

[0028] Furthermore, a movable bolt 501 is fixedly connected to the outer side of the grab shaft 5, and a grab rotating rod 502 is movably connected to the inside of the grab shaft 5. By fixing the movable bolt 501, the grab 3 can be quickly replaced.

[0029] Furthermore, a detection spring 601 is fixedly connected to the lower part of the detection box 6. A driving rod 602 is fixedly connected inside the detection spring 601. The detection box 6 is movably connected to the outer side of the driving rod 602. A detection plate 603 is fixedly connected above the driving rod 602. A detection rod 605 is fixedly connected below the detection plate 603. A detection button 604 is movably connected below the detection rod 605. A limit rod 606 is movably connected inside the connecting plate 1. A limit bolt 607 is fixedly connected above the limit rod 606. By driving the detection button 604 through the grab bucket, the load of the grab bucket can be detected.

[0030] Working Principle: During operation, the connecting plate 1 is first moved into the pit by a crane. Then, the grab bucket hydraulic rod 4 is activated. The grab bucket hydraulic rod 4 moves the movable shaft 401 upwards, which in turn moves the movable rod 402 upwards. The movable rod 402 moves the fixed shaft 403 inwards, which in turn moves the grab bucket connecting piece 302 outwards. The grab bucket connecting piece 302 then opens the connecting grab bucket 3, allowing it to grab soil using the grab bucket hydraulic rod 4. The soil is then lifted by the crane. When the soil inside the crane reaches a certain total amount, the soil drives the detection spring 601, which in turn drives the driving rod 602 downwards. The driving rod 602 then drives the detection plate 603 downwards, which in turn drives the detection rod 605 downwards. The detection rod 605 then drives the detection button 604, closing the circuit and activating the warning device to alert the worker that the grab bucket is overloaded. If the grab bucket blade is damaged, the grab bucket blade can be disassembled by rotating the connecting bolt 405 and the movable bolt 501, allowing for quick replacement of the grab bucket blade.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A grab bucket with a load detection mechanism, comprising: A connecting plate (1), a connecting frame (2), and a connecting grab (3) are provided. The connecting frame (2) is provided below the connecting plate (1), and the connecting grab (3) is provided below the connecting frame (2). The grab hydraulic rod (4) is fixedly connected above the connecting frame (2), and a movable rod (402) is movably connected to the outside of the grab hydraulic rod (4). The grab shaft (5) is movably connected to the outside of the connecting frame (2). A detection box (6) is fixedly connected below the connecting plate (1). A detection spring (601) is fixedly connected above the connecting frame (2). A driving rod (602) is fixedly connected above the connecting frame (2). A detection button (604) is fixedly connected inside the detection box (6).

2. A grab bucket with a load detection mechanism according to claim 1, characterized in that: A fixing rod (101) is fixedly connected above the connecting plate (1), and a fixing wire (102) is fixedly connected above the fixing rod (101).

3. A grab bucket with a load detection mechanism according to claim 1, characterized in that: A connecting rod (201) is fixedly connected above the connecting frame (2), and a connecting plate (202) is fixedly connected above the connecting rod (201).

4. A grab bucket with a load detection mechanism according to claim 1, characterized in that: A grab rod (301) is fixedly connected above the grab (3), and a grab connecting piece (302) is fixedly connected to the outside of the grab rod (301).

5. A grab bucket with a load detection mechanism according to claim 1, characterized in that: A movable shaft (401) is fixedly connected to the outer side of the grab bucket hydraulic rod (4), a movable rod (402) is movably connected to the inside of the movable shaft (401), a fixed shaft (403) is movably connected to the outer side of the movable rod (402), a fixed plate (404) is fixedly connected to the outer side of the fixed shaft (403), and a connecting bolt (405) is fixedly connected to the outer side of the fixed plate (404).

6. A grab bucket with a load detection mechanism according to claim 1, characterized in that: The outer side of the grab shaft (5) is fixedly connected with a movable bolt (501), and the inside of the grab shaft (5) is movably connected with a grab rotating rod (502).

7. A grab bucket with a load detection mechanism according to claim 1, characterized in that: A detection spring (601) is fixedly connected to the bottom of the detection box (6). A drive rod (602) is fixedly connected inside the detection spring (601). The detection box (6) is movably connected to the outside of the drive rod (602). A detection plate (603) is fixedly connected above the drive rod (602). A detection rod (605) is fixedly connected below the detection plate (603). A detection button (604) is movably connected below the detection rod (605). A limit rod (606) is movably connected inside the connecting plate (1). A limit bolt (607) is fixedly connected above the limit rod (606).

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