Non-conductive support stands
US-2018277285-A1 · Sep 27, 2018 · US
Base mechanism of single prop capable of being unloaded at reduced pressure
US10895154B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10895154-B2 |
| Application number | US-201716088437-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 2, 2017 |
| Priority date | Nov 3, 2016 |
| Publication date | Jan 19, 2021 |
| Grant date | Jan 19, 2021 |
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- Title
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- Abstract
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
Provided is a base mechanism of a single prop capable of being unloaded at reduced pressure, including a base bottom plate and two wedge-shaped support blocks, where one of the wedge-shaped support blocks serves as a fixed wedge-shaped support block and is welded onto the base bottom plate, and the other of the wedge-shaped support blocks serves as a movable wedge-shaped support block and is connected to the fixed wedge-shaped support block by using a screw rod and a nut. The present invention can effectively unload the single prop at reduced pressure or remove the single prop in a contracted manner, is of a simple structure, is convenient to operate, has a good use effect, overcomes the technical problem that it is difficult to unload a single prop at reduced pressure in this technical feature, and is widely applicable in this technical field.
First claim
Opening claim text (preview).
What is claimed is: 1. A base mechanism of a single prop capable of being unloaded at reduced pressure, comprising a base bottom plate and two wedge-shaped support blocks, wherein one of the wedge-shaped support blocks serves as a fixed wedge-shaped support block and is welded onto the base bottom plate, the other one of the wedge-shaped support blocks serves as a movable wedge-shaped support block and is connected to the fixed wedge-shaped support block by a screw rod and a nut, two ends of each of the fixed wedge-shaped support block and the movable wedge-shaped support block each are provided with a lug, heights of the lugs on the two ends of the fixed wedge-shaped support block are different from heights of the lugs on the two ends of the movable wedge-shaped support block, the fixed wedge-shaped support block and the movable wedge-shaped support block are symmetrically disposed, and the two ends of the fixed wedge-shaped support block and the two ends of the movable wedge-shaped support block overlap with each other at the lugs and are connected by screw rods and nuts at the lugs. 2. The base mechanism of a single prop capable of being unloaded at reduced pressure according to claim 1 , wherein upper end faces of the wedge-shaped support blocks are semi-conical faces, a side of each of the semi-conical faces proximal to the movable wedge-shaped support block is provided with a semicircular notch, the fixed wedge-shaped support block and the movable wedge-shaped support block are symmetrically disposed and connected together to form an assembly, a center of the assembly is a cylindrical hole, and an upper end face of the assembly is a conical face.
Assignees
Inventors
Classifications
with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals · CPC title
Details of the ends of props (for permitting step-by-step movement E21D23/06) · CPC title
- E21D15/55Primary
of prop heads {or feet} · CPC title
- E21D15/60Primary
Devices for withdrawing props or chocks · CPC title
Feet for furniture in general (castors B60B33/00) · CPC title
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Frequently asked questions
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- What does patent US10895154B2 cover?
- Provided is a base mechanism of a single prop capable of being unloaded at reduced pressure, including a base bottom plate and two wedge-shaped support blocks, where one of the wedge-shaped support blocks serves as a fixed wedge-shaped support block and is welded onto the base bottom plate, and the other of the wedge-shaped support blocks serves as a movable wedge-shaped support block and is co…
- Who is the assignee on this patent?
- Univ China Mining
- What technology area does this patent fall under?
- Primary CPC classification E21D15/55. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jan 19 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).