A coal mine wall surface drilling cuttings collection device

Abstract

The utility model discloses a coal mine wall surface drilling chip collection device, including the both ends open collection cylinder, the one end of collection cylinder is provided with the blocking piece of a plurality of for the drill bit, and the one end of collection cylinder away from blocking piece is provided with a plurality of retractable retraction piece that can retract along the axial direction of collection cylinder, and a plurality of retraction piece enclose and form the ring structure. A plurality of blocking piece, collection cylinder and a plurality of retraction piece cooperate, when drilling, three can be wrapped in the drilling area, so as to facilitate the collection of debris, and a plurality of retraction piece can retract along the axial direction of collection cylinder, so that the device can be attached to the smooth wall, and also can be attached to the uneven wall.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety technology, and in particular to a coal mine wall cuttings collection device. Background Technology

[0002] The drill cuttings method is a commonly used approach in predicting rockbursts and coal mine gas outbursts. It is an effective monitoring and early warning method in mines threatened by gas outbursts and rockbursts. In practice, it is essential to collect the drilled coal cuttings. However, due to factors such as tunnel ventilation, the coal cuttings tend to fly around, making them difficult to capture and collect completely, leading to significant errors in subsequent prediction data. Utility Model Content

[0003] This utility model provides a coal mine wall cuttings collection device to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A coal mine wall cuttings collection device includes a collection cylinder with openings at both ends. One end of the collection cylinder is provided with several blocking plates that allow the drill bit to pass through. The other end of the collection cylinder away from the blocking plates is provided with several telescopic plates that can extend and retract along the axial direction of the collection cylinder. The telescopic plates are arranged to form a circular ring structure.

[0006] Preferably, the end of the collecting cylinder away from the blocking plate has an annular groove, the central axis of the annular groove being collinear with the central axis of the collecting cylinder; any one of the telescopic plates is slidably connected to the annular groove; a plurality of springs are provided in the annular groove, each spring corresponding to one of the telescopic plates, one end of any spring being connected to the inner bottom wall of the annular groove, and the other end being connected to the corresponding telescopic plate; the sliding direction of any telescopic plate and the extension direction of any spring are parallel to the central axis of the collecting cylinder.

[0007] Preferably, a limiting strip is provided on the side wall of any of the telescopic pieces, and a limiting groove is provided on the inner side wall of the annular groove. The limiting strip and the limiting groove are slidably connected, and the extension direction of the limiting strip and the extension direction of the limiting groove are both parallel to the central axis of the collecting cylinder.

[0008] Preferably, the end of any of the telescopic pieces away from the spring extends out of the annular groove, and an elastic body is provided at the end of any of the telescopic pieces extending out of the annular groove.

[0009] Preferably, the collection tube is provided with a handle.

[0010] Preferably, the collection cylinder is provided with a support frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model discloses a coal mine wall cuttings collection device, which uses a number of blocking plates, a collection cylinder and a number of telescopic plates in combination. During drilling, the three can wrap around the drilling area to facilitate the collection of cuttings. The telescopic plates can extend and retract along the axis of the collection cylinder, so that the device can be attached to a flat wall surface or an uneven wall surface. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1-Collection cylinder; 2-Blocking plate; 3-Telescopic plate; 4-Spring; 5-Limiting strip; 6-Elastic body; 7-Holding handle; 8-Support frame. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0019] Example

[0020] like Figure 1-4 The device shown is a coal mine wall cuttings collection device, comprising a collection cylinder 1 open at both ends. One end of the collection cylinder 1 is fitted with several blocking plates 2, which allow a drill bit to pass through. The blocking plates 2 are arranged in a circular array about the central axis of the collection cylinder 1. The end of the collection cylinder 1 away from the blocking plates 2 is provided with several telescopic plates 3 that can extend and retract along the axial direction of the collection cylinder 1. The telescopic plates 3 are arranged to form a ring structure. The blocking plates 2 can be made of an elastic material to facilitate the drill bit passing through the blocking area formed by the blocking plates 2.

[0021] In this embodiment, to facilitate the installation of several telescopic plates 3, an annular groove is provided at the end of the collecting cylinder 1 away from the blocking plate 2, and the central axis of the annular groove is collinear with the central axis of the collecting cylinder 1; any telescopic plate 3 is slidably connected to the annular groove, and adjacent telescopic plates 3 abut against each other. Several springs 4 are provided in the annular groove, and each spring 4 corresponds to one telescopic plate 3. One end of any spring 4 is connected to the inner bottom wall of the annular groove, and the other end is connected to the corresponding telescopic plate 3; the sliding direction of any telescopic plate 3 and the extension direction of any spring 4 are parallel to the central axis of the collecting cylinder 1.

[0022] In this embodiment, both the collecting cylinder 1 and the telescopic plate 3 can be made of transparent plates so that it is easy to observe whether the drill bit is aligned with the drilling point during drilling.

[0023] In order to facilitate the sliding connection between the telescopic plate 3 and the collection cylinder 1, in this embodiment, a limiting strip 5 is installed on the side wall of any telescopic plate 3, and a limiting groove adapted to the limiting strip 5 is opened at the corresponding position on the inner side wall of the annular groove. The limiting strip 5 and the limiting groove are slidably connected, and the extension direction of the limiting strip 5 and the extension direction of the limiting groove are both parallel to the central axis of the collection cylinder 1.

[0024] If the wall to be drilled is uneven, in order to make the end of the telescopic piece 3 away from the spring 4 better fit against the wall, in this embodiment, the end of any telescopic piece 3 away from the spring 4 extends out of the annular groove, and an elastic body 6 with a certain thickness is installed on the end of any telescopic piece 3 extending out of the annular groove. The elastic body 6 can be an air bladder or made of rubber, etc.

[0025] In order to facilitate the contact between the telescopic plate 3 and the wall during use, a handle 7 is specially installed on the collection cylinder 1 in this embodiment.

[0026] In other embodiments of this example, a support frame 8 may also be installed on the collection cylinder 1. During use, the support frame 8 is nailed to the ground for support.

[0027] Working principle:

[0028] During drilling, if the wall surface to be drilled is flat, each elastic body 6 will simultaneously abut against the wall surface. The drill bit can then pass through the blocking plate 2 and the inside of the collecting cylinder 1 to reach the drilling point, and then drilling will begin. The drill cuttings generated during the drilling process can be retained in the collecting cylinder 1.

[0029] When drilling, if the wall surface to be drilled is uneven, each elastic body 6 will contact the wall surface, and the extension and contraction of each spring 4 will be different to adapt to the current working conditions.

[0030] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A device for collecting drill cuttings from coal mine walls, characterized in that, The device includes a collection cylinder (1) with openings at both ends. One end of the collection cylinder (1) is provided with several blocking plates (2) that allow the drill bit to pass through. The end of the collection cylinder (1) away from the blocking plates (2) is provided with several telescopic plates (3) that can extend and retract along the axial direction of the collection cylinder (1). The several telescopic plates (3) are enclosed to form a circular structure.

2. The coal mine wall cuttings collection device according to claim 1, characterized in that, The collecting cylinder (1) has an annular groove at one end away from the blocking plate (2), and the central axis of the annular groove is collinear with the central axis of the collecting cylinder (1); any telescopic plate (3) is slidably connected to the annular groove; a plurality of springs (4) are provided in the annular groove, and the plurality of springs (4) correspond one-to-one with the plurality of telescopic plates (3), one end of any spring (4) is connected to the inner bottom wall of the annular groove, and the other end is connected to the corresponding telescopic plate (3); the sliding direction of any telescopic plate (3) and the telescopic direction of any spring (4) are parallel to the central axis of the collecting cylinder (1).

3. The coal mine wall cuttings collection device according to claim 2, characterized in that, A limiting strip (5) is provided on the side wall of any of the telescopic pieces (3), and a limiting groove is provided on the inner side wall of the annular groove. The limiting strip (5) is slidably connected to the limiting groove. The extension direction of the limiting strip (5) and the extension direction of the limiting groove are both parallel to the central axis of the collecting cylinder (1).

4. The coal mine wall cuttings collection device according to claim 3, characterized in that, One end of any of the telescopic pieces (3) away from the spring (4) extends out of the annular groove, and an elastic body (6) is provided at the end of any of the telescopic pieces (3) extending out of the annular groove.

5. The coal mine wall cuttings collection device according to any one of claims 1-4, characterized in that, The collection tube (1) is provided with a handle (7).

6. The coal mine wall drill cuttings collection device according to any one of claims 1-4, characterized in that, A support frame (8) is provided on the collection cylinder (1).

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