Sand prevention grab bucket
By designing sand baffles and flexible plates on the crane grab bucket, the problem of sand entering the pulley system during sand grabbing is solved, the service life of the wire rope is extended, and the sand-proof effect and ease of use of the grab bucket are improved.
Patent Information
- Application Number
- CN202423278223.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When the existing overhead crane grab bucket is grabbing sand, the sand falling from the upper discharge port can easily enter the grab bucket pulley block, causing wear on the wire rope and shortening its service life.
A sand-proof grab bucket is designed, which uses sand-blocking plates to cover both sides of the bucket body, and combines flexible sheets and magnetic blocks to achieve quick installation and disassembly. The structural strength is enhanced by thin plates and bending parts, and the upper discharge port of the grab bucket is partially closed to prevent sand from entering the pulley block.
It effectively prevents sand from entering the pulley system, reduces wire rope wear, extends the service life of the wire rope, and improves the convenience and safety of using the grab bucket.
Smart Images

Figure CN223646161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a crane grab bucket, and more particularly to a sand-proof grab bucket. Background Technology
[0002] Overhead crane grabs, as specialized tools for cranes to grab dry bulk cargo, mainly consist of multiple jaw plates and are opened and closed by external force driven by ropes or linkages. When grabbing sand, existing overhead crane grabs are prone to sand falling into the grab's pulley system from the upper discharge port, causing wear and tear on the wire ropes. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a sand-proof grab bucket that is reasonably designed, easy to use, and improves the service life of wire ropes, in order to overcome the shortcomings of the existing technology.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A sand-proof grab bucket includes a grab bucket body, which is composed of a bucket body, a sliding body, an upper sliding body, and a sliding rod. A pull rod is provided between the outer side of the bucket body and the upper sliding body. The lower end of the pull rod is hinged to the outer wall of the bucket body, and the upper end of the pull rod is hinged to the upper sliding body. The upper sliding body and the sliding rod are slidably connected. The inner side of the bucket body is hinged to the sliding body, and the sliding body is connected to the sliding rod. The grab bucket body is characterized by having sand-blocking plates at the pull rods on both sides for covering the wire rope from the outside of the bucket body. Connecting plates are provided on both sides of the sand-blocking plates. Support legs for installing the connecting plates are provided at the upper end of the pull rods. Insertion holes for hanging the support legs are provided on the connecting plates. Flexible sheets for overlapping the upper part of the sand-blocking plates are provided on the upper sliding body. The sand-blocking plates are thin plates with a thickness of 1mm-5mm.
[0006] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the sand baffle is composed of a left baffle and a right baffle, the left baffle and the right baffle partially overlap, and magnetic blocks that attract each other are provided at the overlap, so that the sand baffle is easy to install and disassemble.
[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: side baffles that cooperate with the tie rod are provided on both sides of the sand baffle, the side baffles are perpendicularly connected to the sand baffle, and the connecting plate, the side baffles and the sand baffle are integrated to achieve side dust prevention.
[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: a bending part for enhancing the strength of the plate is provided in the middle of the sand baffle plate.
[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the flexible sheet is a transparent plastic sheet, which prevents dust from flying in between the upper sliding body and the sand baffle, and further ensures the safety of the wire rope.
[0010] Compared with the prior art, this utility model solves the problem of sand falling into the grab bucket pulley assembly by sealing the bucket body from both sides with sand baffles; it also enables quick installation and removal of the sand baffles by providing support legs, connecting plates and insertion holes; and it further improves the efficiency and effect of dust and sand prevention by providing flexible sheets. Attached Figure Description
[0011] Figure 1 This is a diagram showing the arrangement of the sand-proof grabs described in this utility model;
[0012] Figure 2 for Figure 1 Side view;
[0013] Figure 3 This is a structural diagram of a sand-blocking plate.
[0014] In the diagram: 1-bucket body, 2-sand baffle, 3-pull rod, 4-sliding body, 5-flexible sheet, 6-upper sliding body, 7-left baffle, 8-right baffle, 9-side baffle, 10-insertion hole, 11-bending part. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "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, they should not be construed as limitations on this utility model.
[0017] Reference Figure 1-3 A sand-control grab bucket includes a grab bucket body, which is composed of a bucket body 1, a sliding body 4, an upper sliding body 6, and a sliding rod. A tie rod 3 is provided between the outer side of the bucket body 1 and the upper sliding body 6. The lower end of the tie rod 3 is hinged to the outer wall of the bucket body 1, and the upper end of the tie rod 3 is hinged to the upper sliding body 6. The upper sliding body 6 is slidably connected to the sliding rod. The inner side of the bucket body is hinged to the sliding body 4, and the sliding body is connected to the sliding rod. The structure of the grab bucket body is the same as that of the single-rope suspended grab bucket in the prior art.
[0018] Sand baffles 2 are provided on the pull rods 3 on both sides of the grab body to cover the wire rope from the outside of the grab body. Connecting plates are provided on both sides of the sand baffles 2. Support legs for installing the connecting plates are provided at the upper end of the pull rods 3. Insertion holes 10 for hanging on the support legs are provided on the connecting plates. Flexible sheets 5 are provided on the upper sliding body 6 for overlapping the upper part of the sand baffles. The flexible sheets 5 are transparent plastic sheets.
[0019] The sand-blocking plate consists of a left baffle 7 and a right baffle 8, with the left baffle 7 and the right baffle 8 partially overlapping. The overlapping part is provided with magnetic blocks that attract each other. The sand-blocking plate 2 is a thin plate with a thickness of 1mm-5mm. A bending part 11 for enhancing the strength of the plate is provided in the middle of the sand-blocking plate 2.
[0020] Side baffles 9 that cooperate with the tie rod are provided on both sides of the sand baffle 2. The side baffles 9 are perpendicularly connected to the sand baffle 2, and the connecting plate and the side baffles are integrated.
[0021] The sand-proof grab described in this utility model changes the hollow design of the space between the raw material pull rods to a partial enclosure using a sand baffle plate 2, which effectively solves the problem of sand falling into the grab pulley group from the upper feed port of the grab bucket and reduces the wear of the wire rope. In order to reduce the added weight of the grab bucket, a thin plate is used, and the thin plate is bent, i.e., the bent part 11, which increases the strength of the thin plate.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A sand-control grab bucket, comprising a grab bucket body, the grab bucket body being composed of a bucket body, a lower sliding body, an upper sliding body, and a sliding rod, wherein a tie rod is provided between the outer side of the bucket body and the upper sliding body, the lower end of the tie rod being hinged to the outer wall of the bucket body, the upper end of the tie rod being hinged to the upper sliding body, the upper sliding body being slidably connected to the sliding rod, the inner side of the bucket body being hinged to the lower sliding body, and the lower sliding body being connected to the sliding rod, characterized in that... Sand baffles are provided on the pull rods on both sides of the grab body to cover the wire rope from the outside of the grab body. Connecting plates are provided on both sides of the sand baffles. Support legs are provided at the upper end of the pull rods for installing the connecting plates. Insertion holes for hanging the support legs are provided on the connecting plates. Flexible plates are provided on the upper slide body for overlapping the upper part of the sand baffles.
2. The sand-proof grab bucket according to claim 1, characterized in that, The sand-blocking plate consists of a left baffle and a right baffle. The left baffle and the right baffle partially overlap, and magnetic blocks that attract each other are provided at the overlapping part.
3. A sand-resistant grab bucket according to claim 1, characterized in that, Side baffles that cooperate with the tie rod are provided on both sides of the sand baffle. The side baffles are perpendicularly connected to the sand baffle, and the connecting plate, side baffles and sand baffle are integrated as one unit.
4. A sand-resistant grab bucket according to claim 1, characterized in that, A bending section is provided in the middle of the sand-blocking plate to enhance the strength of the plate.
5. A sand-resistant grab bucket according to claim 1, characterized in that, The flexible sheet is a transparent plastic sheet.
6. A sand-resistant grab bucket according to claim 1, characterized in that, The sand-blocking plate is a thin plate with a thickness of 1mm-5mm.