Portable sampling device for coal mine drilling

Abstract

The utility model provides a portable coal mine drilling sampling device which comprises a drilling cylinder and a containing cylinder, a rotating body is rotationally installed at the bottom end of the interior of the containing cylinder, the bottom end of the rotating body penetrates through the containing cylinder and is fixedly connected with the drilling cylinder, two arc-shaped sliding grooves in central symmetry are formed in the side face of the rotating body, and the ends of the two arc-shaped sliding grooves are communicated through a straight groove; a sliding sleeve is slidably installed in the containing cylinder, sliding blocks matched with the arc-shaped sliding grooves and the straight grooves are arranged on the inner wall of the sliding sleeve, and a handle is arranged at the end, penetrating through the containing cylinder, of the top end of the sliding sleeve. When the handle is pressed, the rotating body can drive the drilling barrel to rotate under the matching action of the sliding block and the arc-shaped sliding groove, and a to-be-taken sample is drilled; after the sliding block slides to the bottom end of one arc-shaped sliding groove, the sliding block can enter the top end of the next arc-shaped sliding groove by lifting the sliding sleeve, then rotation of the drilling barrel is achieved again by pressing the handle, a cycle is formed, and drilling of samples is achieved without the help of electric power.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a portable coal mine drilling sampling device. Background Art

[0002] In the process of geological exploration, in order to facilitate the experimental analysis of geological conditions, it is necessary to use geological exploration samplers for sampling so that subsequent laboratory testing can be carried out. Coal mine geological drilling sampling, also known as coal seam sampling, takes a small number of representative samples from the coal seam according to certain specifications and requirements for analysis, testing and identification. The samples are used to determine the coal type, coal quality characteristics and their changing laws and coal processing properties of the mineable coal seams in the mining area or well field, so as to correctly evaluate the coal quality.

[0003] However, in the existing technology, most geological exploration sampling devices sample surface coal samples by manual pressing or use electric equipment for drilling. The manual pressing method has low sampling efficiency under conditions of hard geology, and electric drilling requires power connection, which is not conducive to outdoor operations. Utility Model Content

[0004] The purpose of the utility model is to provide a portable coal mine drilling sampling device, which can realize the drilling of coal samples without the help of electricity.

[0005] The utility model provides a portable coal mine drilling and sampling device, including a drill barrel and a accommodating barrel, a rotating body is rotatably installed at the bottom end of the accommodating barrel, the bottom end of the rotating body passes through the accommodating barrel and is fixedly connected to the drill barrel, two centrally symmetrical arc-shaped sliding grooves are provided on the side of the rotating body, and the ends of the two arc-shaped sliding grooves are connected by a straight groove; a sliding sleeve is slidably installed inside the accommodating barrel along its axial direction, a sliding block is provided on the inner wall of the sliding sleeve, which cooperates with the arc-shaped sliding groove and the straight groove, and the top end of the sliding sleeve passes through the accommodating barrel and is provided with a handle at one end.

[0006] Furthermore, the axis of the straight slot is parallel to the axis of the rotating body.

[0007] Furthermore, the bottom end of the drill barrel is provided with drill teeth, and the side surface of the drill barrel is provided with spiral grooves.

[0008] Furthermore, the cross sections of the arc-shaped sliding groove, the straight groove and the sliding block are all semicircular.

[0009] Furthermore, the slider and the sliding sleeve are integrally formed.

[0010] Furthermore, a pressure bearing is installed at the bottom end of the accommodating cylinder, and the top end of the pressure bearing is in contact with the rotating body.

[0011] Further, the bottom end of the accommodating cylinder inside is provided with a reset spring outside the rotating body, and the top end of the reset spring is in abutment with the bottom end of the sliding sleeve.

[0012] Further, the outer diameter of the drill cylinder is not less than the outer diameter of the accommodating cylinder.

[0013] Further, the accommodating cylinder comprises a lower cylinder and an upper cylinder, the top end of the lower cylinder is sleeved with the bottom end inside the upper cylinder, and the upper cylinder and the lower cylinder are connected through threads.

[0014] Further, the outer diameter of the sliding sleeve is the same as the inner diameter of the lower cylinder.

[0015] The beneficial effects of the technical scheme of the utility model relative to the prior art are that: through the arc-shaped sliding grooves arranged on the side surface of the rotating body, the sliding block on the inner wall of the sliding sleeve can cooperate with the arc-shaped sliding grooves to drive the rotating body to rotate the drill cylinder when the handle is pressed, so that the sample to be taken can be drilled; and the end portions of the two arc-shaped sliding grooves on the side surface of the rotating body are communicated through the straight grooves, so that when the sliding block slides to the bottom end of one of the arc-shaped sliding grooves, the sliding block can enter the top end of the next arc-shaped sliding groove by lifting the sliding sleeve, and then the drill cylinder can be rotated again by pressing the handle, forming a cycle, and the drilling of the sample can be realized without the aid of power. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0017] Figure 1 It is a sectional view of part of the structure of the utility model.

[0018] Figure 2 It is a split view of the internal structure in the utility model.

[0019] Figure 3 It is a schematic view of the overall appearance structure of the utility model.

[0020] Mark explanation: 1-drill cylinder; 101-drill tooth; 102-spiral groove; 2-rotating body; 3-sliding sleeve; 4-reset spring; 5-lower cylinder; 6-upper cylinder; 7-pressing rod; 8-pressing plate; 9-force transmission rod; 10-handle; 11-pressure bearing; 12-arc-shaped sliding groove; 13-straight groove; 14-sliding block. Specific embodiments

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] Example 1

[0025] like Figure 1-Figure 3 As shown, the utility model provides a portable coal mine drilling and sampling device, including a drill barrel 1, a drill barrel 1 and a accommodating barrel, a rotating body 2 is rotatably installed at the bottom end of the accommodating barrel, and the rotating structure is: a pressure bearing 11 is installed at the bottom end of the accommodating barrel, and the top end of the pressure bearing 11 is in contact with the rotating body 2; the bottom end of the rotating body 2 is provided with a connecting part that passes through the accommodating barrel, and the bottom end of the connecting part is fixedly connected to the top end of the drill barrel 1, so that when the rotating body 2 rotates, it can drive the drill barrel 1 to rotate.

[0026] In order to realize the rotation of the rotating body 2, the technical solution is realized by the cooperation between the rotating body 2 and the sliding sleeve 3. The sliding sleeve 3 is slidably installed inside the accommodating tube along the axial direction of the accommodating tube. Two centrally symmetrical arc-shaped sliding grooves 12 are provided on the side of the rotating body 2. A slider 14 that cooperates with the arc-shaped sliding groove 12 is provided on the inner wall of the sliding sleeve 3. By pressing the sliding sleeve 3, the rotating body 2 can rotate without rotating the sliding sleeve 3, thereby driving the drill tube 1 to rotate.

[0027] In order to achieve intermittent rotation of the drill barrel 1, the two arc-shaped slide grooves 12 on the side of the rotating body 2 are connected by a straight groove 13, that is: a straight groove 13 is opened between the bottom end of the first arc-shaped slide groove 12 and the top end of the second arc-shaped slide groove 12, and the axis of the straight groove 13 is parallel to the axis of the rotating body 2. When the slider 14 inside the sliding sleeve 3 slides to the bottom end of the first arc-shaped slide groove 12, the rotating body 2 does not move. By pulling the sliding sleeve 3 upward, the slider 14 can enter the top end of the second arc-shaped slide groove 12, and pressing the sliding sleeve 3 again can achieve the rotation of the drill barrel 1 again. On this basis, in order to enable the slider 14 to rise along the straight groove 13 by itself and to realize the self-transfer from the first arc-shaped slide groove 12 to the second arc-shaped slide groove 12 by itself, in this technical solution, a return spring 4 is provided at the bottom end of the accommodating cylinder on the outside of the rotating body 2, and the top end of the return spring 4 abuts against the bottom end of the sliding sleeve 3. When the slider 14 moves to the bottom end position of the first arc-shaped slide groove 12, under the action of the spring 4, the slider 14 rises along the straight groove 13 and enters the top position of the second arc-shaped slide groove 12.

[0028] A force transmission rod 9 is fixedly installed on the top of the sliding sleeve 3. The force transmission rod 9 passes through the accommodating tube. A handle 10 is provided at one end of the force transmission rod 9 passing through the accommodating tube. The handle 10 facilitates pressing the sliding sleeve 3 downward.

[0029] In order to improve the drilling efficiency, a drill tooth 101 is provided at the bottom end of the drill tube 1; in order to reduce the drilling resistance of the drill tube 1, a spiral groove 102 is provided on the side of the drill tube 1, which can discharge the drilled coal dust in time.

[0030] In this embodiment, the cross sections of the arc-shaped sliding groove 12 , the straight groove 13 and the sliding block 14 are all semicircular, and the sliding block 14 is integrally formed with the sliding sleeve 3 .

[0031] The outer diameter of the drill tube 1 is not less than the outer diameter of the accommodating tube, so that when the drill tube 1 is drilling, the accommodating tube will not form an obstruction.

[0032] The accommodating tube consists of a lower tube 5 and an upper tube 6. The top end of the lower tube 5 is sheathed inside the bottom end of the upper tube 6. The upper and lower tubes 6 and 5 are connected by threads, facilitating the installation and removal of internal components. The outer diameter of the sliding sleeve 3 is the same as the inner diameter of the lower tube 5, and the inner diameter of the sliding sleeve 3 is the same as the outer diameter of the rotating body 2, preventing the sliding sleeve 3 from shaking during its upward and downward movement.

[0033] Example 2

[0034] Compared with Example 1, the technical feature of this embodiment is that in order to prevent the sliding sleeve 3 and the accommodating tube from rotating, the groove inside the sliding sleeve 3 can be set eccentrically, that is, the axis of the groove deviates from the axis of the sliding sleeve 3, but the two axes are parallel to each other. In this way, when the sliding sleeve 3 is pressed down, it will not rotate relative to the accommodating tube, but will only slide up and down along the axis of the accommodating tube.

[0035] Example 3

[0036] The technical features that distinguish this embodiment from embodiment 1 are that it includes a pressure rod 7, which passes through the sliding sleeve 3, the rotating body 2 and the drill barrel 1 in sequence from the top end. A pressure plate 8 is provided inside the drill barrel 1. One end of the pressure rod 7 that passes through the inside of the drill barrel 1 is fixedly connected to the pressure plate 8. After sampling is completed, the pressure rod 7 is pressed down to drive the pressure plate 8 to push the sample out of the drill barrel 1.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable coal mine drilling sampling device, characterized in that: The present invention comprises a drill tube and a receiving tube, wherein a rotating body is rotatably mounted on the bottom end of the receiving tube, the bottom end of the rotating body passes through the receiving tube and is fixedly connected to the drill tube, and two arc-shaped sliding grooves are provided on the side surface of the rotating body, and the ends of the two arc-shaped sliding grooves are connected by a straight groove; a sliding sleeve is slidably mounted inside the receiving tube along its axial direction, and a sliding block is provided on the inner wall of the sliding sleeve to cooperate with the arc-shaped sliding groove and the straight groove, and the top end of the sliding sleeve passes through the receiving tube and is provided with a handle at one end; The bottom end of the drill tube is provided with drill teeth, and the side surface of the drill tube is provided with spiral grooves; The outer diameter of the drill tube is not less than the outer diameter of the accommodating tube.

2. The portable coal mine drilling sampling device according to claim 1, characterized in that: The axis of the straight groove is parallel to the axis of the rotating body.

3. The portable coal mine drilling sampling device according to claim 1, characterized in that: The cross sections of the arc-shaped sliding groove, the straight groove and the sliding block are all semicircular.

4. The portable coal mine drilling sampling device according to claim 3, characterized in that: The sliding block and the sliding sleeve are integrally formed.

5. The portable coal mine drilling sampling device according to claim 1, characterized in that: A pressure bearing is installed at the bottom end of the accommodating cylinder, and the top end of the pressure bearing is in contact with the rotating body.

6. The portable coal mine drilling sampling device according to claim 1, characterized in that: A return spring is provided at the bottom end of the interior of the accommodating cylinder on the outside of the rotating body, and the top end of the return spring abuts against the bottom end of the sliding sleeve.

7. The portable coal mine drilling sampling device according to claim 1, characterized in that: The accommodating cylinder comprises a lower cylinder and an upper cylinder. The top end of the lower cylinder is sleeved on the bottom end of the inner side of the upper cylinder. The upper cylinder and the lower cylinder are connected by threads.

8. The portable coal mine drilling sampling device according to claim 7, characterized in that: The outer diameter of the sliding sleeve is the same as the inner diameter of the lower cylinder.

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