A rapid unloading device for vertical shaft slag.
By designing a rapid unloading device that includes a slag box, lifting rings, a base plate, U-shaped clamps, channel steel, and locking ribs, the problems of low slag unloading efficiency and insufficient safety in vertical shaft construction were solved, achieving efficient and safe slag unloading and reducing the intensity of manual labor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 14 CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-07
AI Technical Summary
Current shaft construction methods suffer from low slag unloading efficiency, high labor intensity, and problems such as incomplete slag dumping, scattering, and insufficient safety.
A rapid unloading device was designed, comprising a slag box, lifting rings, a bottom plate, U-shaped clamps, channel steel, and locking ribs. The bottom plate is kept closed during hoisting and automatically opens during unloading, thus achieving rapid unloading of slag.
It improved the efficiency of slag removal during vertical shaft construction, reduced the intensity of manual labor, and enhanced the cleanliness and safety of the construction site.
Smart Images

Figure CN224469128U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vertical shaft excavation technology, and in particular to a rapid unloading device for vertical shaft slag. Background Technology
[0002] In water conservancy and hydropower civil engineering projects, shafts serve as important channels connecting surface and underground structures, commonly used for construction access, ventilation and drainage, and waste material transportation. During shaft construction, a large amount of excavated soil and rock is generated, requiring timely, safe, and efficient removal of this material from the shaft to avoid impacting the construction progress.
[0003] Currently, the slag removal operation in the vertical shaft relies heavily on manual labor in conjunction with simple hoisting devices or traditional slag buckets for lifting and unloading. During unloading, manual assistance is required to tilt the hoisting device, which is not only inefficient and labor-intensive, but also often results in problems such as incomplete dumping of slag, slag scattering, and insufficient operational safety, affecting the cleanliness of the construction site.
[0004] Therefore, there is an urgent need for a rapid unloading device for vertical shaft slag to improve the slag removal efficiency during vertical shaft construction, reduce the intensity of manual labor, and improve the cleanliness of the construction site. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a rapid unloading device for vertical shaft slag, thereby improving the slag removal efficiency during vertical shaft construction, reducing manual labor intensity, and enhancing the cleanliness of the construction site.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A rapid unloading device for slag in a vertical shaft includes: a slag box extending through both the top and bottom ends; several lifting rings fixedly connected to the top of the slag box; a base plate rotatably connected to the rear end of the bottom of the slag box; at least one U-shaped clip fixedly connected to the front end face of the slag box; several channel steels fixedly connected to the bottom of the base plate; and locking ribs. The bottom of the U-shaped clip forms an insertion port with the front end face of the slag box, and the insertion port is aligned with the opening of a channel steel. The locking ribs pass through the insertion port and are sleeved with the channel steel.
[0008] Preferably, the slag bin is rectangular, and the number of lifting rings is four, which are respectively located at the four corners of the top of the slag bin.
[0009] Preferably, each of the four corners of the slag box is fixedly connected with several reinforcing ribs.
[0010] Preferably, the number of channel steels is four, and the four channel steels are arranged in parallel and at equal intervals at the bottom of the base plate, and the channel steels are perpendicular to the front face of the slag box.
[0011] Preferably, there are two U-shaped clips, and the insertion openings formed by the bottom of the two U-shaped clips and the front face of the slag box are aligned with the openings of the two channel steels located in the middle.
[0012] Preferably, the rear end of the base plate is rotatably connected to the rear end of the bottom of the slag box via a hinge.
[0013] Preferably, the locking rib has a U-shaped handle at its end.
[0014] This utility model discloses a rapid unloading device for vertical shaft slag, which has the following beneficial effects.
[0015] This utility model includes: a slag box with its upper and lower ends connected, several lifting rings on the top of the slag box, a base plate rotatably connected to the bottom of the slag box, a U-shaped clip at the front end of the slag box, a channel steel at the bottom of the base plate, and a locking rib. The bottom of the U-shaped clip forms an insertion port with the front end of the slag box. Inserting the locking rib allows the base plate to be closed and fixed, maintaining its closure during hoisting. During unloading, the locking rib is removed, and the slag box is re-lifted. The base plate automatically opens under its own weight and the pressure of the slag, achieving rapid unloading of the slag. This device has a simple structure, is flexible in use, and is reusable. It has advantages such as high slag removal efficiency, convenient operation, good safety, and material recyclability. It is suitable for the rapid hoisting and automatic unloading of slag in vertical shaft construction, improving slag removal efficiency, reducing manual labor intensity, and enhancing the cleanliness of the construction site. Attached Figure Description
[0016] Figure 1 This is a front view schematic diagram of a rapid unloading device for slag in a vertical shaft.
[0017] Figure 2 This is a side view schematic diagram of a rapid unloading device for slag in a vertical shaft.
[0018] Figure 3 This is a rear view schematic diagram of a rapid unloading device for slag in a vertical shaft.
[0019] Figure 4 This is a top view schematic diagram of a rapid unloading device for slag in a vertical shaft.
[0020] Figure 5 This is a schematic diagram of the structure of Example 3.
[0021] In the attached diagram: 1-Slag bin; 2-Lifting ring; 3-U-shaped clip; 4-Reinforcing rib; 5-Channel steel; 6-Base plate; 7-Hinge; 8-Locking rib. Detailed Implementation
[0022] 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.
[0023] 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. Example 1
[0024] Reference Figures 1 to 4 As shown, a rapid unloading device for slag in a vertical shaft includes: a slag box 1 extending through both the upper and lower ends; several lifting rings 2 welded to the top of the slag box 1; a base plate 6 rotatably connected to the rear end of the bottom of the slag box 1; at least one U-shaped clip 3 welded to the front end face of the slag box 1; several channel steels 5 welded to the bottom of the base plate 6; and locking ribs 8. The bottom of the U-shaped clip 3 forms an insertion port with the front end face of the slag box 1, and the insertion port is aligned with the opening of a channel steel 5. The locking ribs 8 pass through the insertion port and are sleeved with the channel steel 5.
[0025] Preferably, in this embodiment, the rear end of the base plate 6 is rotatably connected to the rear end of the bottom of the slag box 1 via a hinge 7.
[0026] Preferably, in this embodiment, the locking rib 8 is provided with a U-shaped handle at its end.
[0027] Specifically, in this embodiment, the slag box 1 is made of 20mm thick Q235 steel plate, the locking rib 8 and the lifting ring 2 are made of φ36 round steel bars, and the channel steel 5 is 20a channel steel 5.
[0028] In this embodiment, when using a rapid unloading device for slag in a vertical shaft, before loading slag and rock, the locking rib 8 is inserted through the slot formed by the bottom of the U-shaped clamp 3 and the front end of the slag box 1, and fitted onto the channel steel 5. The slag box 1 is then lifted to the loading position by a crane. During this process, after the slag box 1 is lifted, under the weight of the bottom plate 6, the channel steel 5, and the locking rib 8, there will be no relative displacement between the locking rib 8 and the slot formed by the bottom of the U-shaped clamp 3 and the front end of the slag box 1. In other words, the connection of the locking rib 8 is stable during this process. After the slag box 1 is lifted to the loading position, the loading of slag and rock begins. At this time, the slag box 1 should be placed on a flat surface to prevent relative displacement between the locking rib 8 and the slot formed by the bottom of the U-shaped clamp 3 and the front end of the slag box 1. After the excavation of slag and rock is completed, the slag box 1 is hoisted to the slag and rock unloading area by a crane and placed on a flat ground. At this time, the overall weight is supported by the bottom channel steel 5 of the base plate 6. The locking rib 8 and the U-shaped clip 3 can move relative to each other at the insertion point formed by the bottom and the front face of the slag box 1. That is, after pulling out the locking rib 8, the locking rib 8 can be hung on the side wall of the slag box 1 through the handle at its end. After the locking rib 8 is placed, the slag box 1 is hoisted again. At this time, the base plate 6 rotates to one side of the slag box 1 under the pressure of the slag and rock, completing the unloading of the slag and rock. Although this kind of vertical shaft slag rapid unloading device has a simple structure, it has high efficiency in transporting slag and rock and does not jam slag when unloading slag and rock, effectively solving the problem of difficult slag and rock transportation and unloading during vertical shaft excavation. Example 2
[0029] Based on Example 1, such as Figures 1 to 4 As shown, in this preferred embodiment, the slag box 1 is rectangular, and there are four lifting rings 2, which are welded to the four corners of the top of the slag box 1.
[0030] Preferably, in this embodiment, three reinforcing ribs 4 are welded to each of the four corners of the slag box 1. The first reinforcing rib 4 is 40cm away from the top of the slag box 1. The reinforcing rib 4 is a φ36 round steel bar bent into an L shape. The top of the first reinforcing rib 4 is welded to the bottom of the lifting ring 2.
[0031] Preferably, in this embodiment, there are four channel steels 5, which are arranged in parallel and at equal intervals at the bottom of the base plate 6, and the channel steels 5 are perpendicular to the front end face of the slag box 1.
[0032] Preferably, in this embodiment, in order to increase the connection stability between the bottom plate 6 and the slag box 1, there are two U-shaped clips 3. The bottom of the two U-shaped clips 3 and the insertion port formed by the front end face of the slag box 1 are aligned with the openings of the two channel steels 5 located in the middle.
[0033] Preferably, in this embodiment, the rear end of the base plate 6 is rotatably connected to the rear end of the bottom of the slag box 1 via a hinge 7. Specifically, in this embodiment, the hinge 7 is a detachable hinge 7, and one end of the sub-shaft of the detachable hinge 7 is connected to the side wall of the slag box 1 via a chain.
[0034] Preferably, in this embodiment, the locking rib 8 is provided with a U-shaped handle at its end, and a corresponding retaining ring can be welded onto the side wall of the slag box 1. After the locking rib 8 is pulled out, the locking rib 8 is hooked onto the retaining ring. Example 3
[0035] like Figure 5 As shown, Figure 5 The diagram shows the insertion of the locking rib 8 after the bottom of the U-shaped clip 3 and the front end face of the slag box 1 are aligned with one corner of the opening of the channel steel 5. In this embodiment, by aligning the insertion of the bottom of the U-shaped clip 3 and the front end face of the slag box 1 with one corner of the opening of the channel steel 5 during welding, the range of motion of the locking rib 8 after insertion is reduced, and the connection stability of the locking rib 8 is improved. The reason for using the U-shaped clip 3 instead of the V-shaped clip is that the stress of the V-shaped clip is more concentrated and more prone to fatigue fracture.
[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.
Claims
1. A rapid unloading device for slag in vertical shafts, characterized in that, include: The slag box (1) extends through both ends, several lifting rings (2) are fixedly connected to the top of the slag box (1), a bottom plate (6) is rotatably connected to the bottom rear end of the slag box (1), at least one U-shaped clip (3) is fixedly connected to the front end face of the slag box (1), several channel steels (5) are fixedly connected to the bottom of the bottom plate (6), and locking ribs (8); the bottom of the U-shaped clip (3) forms an insertion port with the front end face of the slag box (1), the insertion port is aligned with the opening of a channel steel (5), and the locking ribs (8) pass through the insertion port and are sleeved with the channel steel (5).
2. The rapid unloading device for vertical shaft slag as described in claim 1, characterized in that, The slag bin (1) is rectangular, and there are four lifting rings (2) located at the four corners of the top of the slag bin (1).
3. The rapid unloading device for vertical shaft slag as described in claim 2, characterized in that, Several reinforcing ribs (4) are fixedly connected to the four corners of the slag box (1).
4. A rapid unloading device for vertical shaft slag as described in claim 2, characterized in that, The number of channel steels (5) is four. The four channel steels (5) are arranged in parallel and at equal intervals at the bottom of the base plate (6). The channel steels (5) are perpendicular to the front face of the slag box (1).
5. A rapid unloading device for vertical shaft slag as described in claim 4, characterized in that, The number of the U-shaped cards (3) is two, and the bottom of the two U-shaped cards (3) and the front end face of the slag box (1) form an insertion port that is aligned with the opening of the two channel steels (5) located in the middle.
6. A rapid unloading device for shaft slag as described in any one of claims 1-5, characterized in that, The rear end of the base plate (6) is rotatably connected to the rear end of the bottom of the slag box (1) via a hinge (7).
7. A rapid unloading device for vertical shaft slag as described in any one of claims 1-5, characterized in that, The locking rib (8) has a U-shaped handle at its end.