Coal mine surveying and mapping locator

Abstract

The utility model provides a coal mine surveying and mapping positioning instrument, which relates to the technical field of coal mine surveying and mapping positioning instruments and comprises a drill bit, a connector is fixedly mounted at the top end of the drill bit, a sampling box is inserted into the side edge of the connector, and a lifting ring with the same diameter as the top end of the drill bit is sleeved on the surface of the connector. A sealing cover used for covering a box opening in the side edge of the sampling box is fixedly installed on the inner side edge of the upper surface of the lifting ring, soil drilled out by a drill bit can be prevented from entering the sampling box through the sealing cover, and during sampling, the lifting ring can ascend under the connecting effect of a connecting plate by means of extension of two electric telescopic rods; the lifting ring ascends to push and remove soil accumulated near the connector upwards, so that no soil is accumulated on the side surface of the connector, and the sampling box smoothly extends out of the connector.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine surveying and positioning instruments, and in particular to a coal mine surveying and positioning instrument. Background Technology

[0002] A coal mine surveying and positioning instrument is a device used for underground measurement and positioning in coal mines. It is mainly used to determine the location of personnel and equipment underground, as well as the precise layout of roadways. For example, a coal mine surveying and positioning instrument, with publication number CN221037418U, is used by first connecting a small motor to a rotating motor and a power source. The small motor drives the connecting rod to rotate, and the drill bit rotates accordingly. Then, a hydraulic push rod pushes the small motor up and down to drill a hole in the ground to a sufficient depth. When the connecting rod needs to rise, the control console can control the rotation of one of the rotating motors to drive the rotation of the fixed shaft. The fixing wire on the outer surface of the fixed shaft can be unfurled and wound up, loosening the limit on the soil box. Then, when the drill bit moves upward, the soil in the soil layer will enter the soil box due to resistance and be collected. After collection, the rotating motor is used to rewind the fixing wire, and the soil box can be re-locked into the collection box.

[0003] However, during drilling, as the drill bit goes deeper, the surrounding soil is compressed and disturbed. This soil exerts lateral pressure on the soil container. Under high pressure, the soil may get stuck at the movable connection of the soil container, preventing the soil container from swinging open normally, which may affect the collection of soil samples at that depth. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a coal mine surveying and positioning instrument.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coal mine surveying and positioning instrument, including a drill bit, a connector fixedly installed at the top of the drill bit, a sampling box inserted into the side of the connector, and a lifting ring with the same diameter as the top of the drill bit sleeved on the surface of the connector. A cover for covering the side opening of the sampling box is fixedly installed on the inner side of the upper surface of the lifting ring. Two symmetrically arranged electric telescopic rods are embedded in the top of the connector. The telescopic ends of the electric telescopic rods face upward and are fixedly installed with a connecting plate. The connecting plate is slidably connected to the side of the connector and the bottom edge of the connecting plate is fixedly connected to the inner edge of the upper surface of the lifting ring.

[0006] Preferably, the drill bit conical surface has a plurality of inclined grooves along the generatrix direction, the inclined grooves extend to the top of the drill bit, and the lifting ring side has a slot corresponding to the inclined grooves.

[0007] Preferably, the top of the lifting ring is rotatably connected to a rotating ring coaxially arranged with the connector head, and the outer side of the rotating ring is also provided with a slot corresponding to any inclined groove position, and the inner side of the rotating ring is clearance-fitted with the surface of the connector head.

[0008] Preferably, a rotating arm is rotatably connected to the center of the top of the connector, the rotating arm is slidably connected to the side of the connector and inserted into the inner side of the rotating ring, and the bottom edge of the rotating arm is slidably connected to the upper surface of the lifting ring.

[0009] Preferably, the inner side of the upper surface of the lifting ring has a notch for insertion into the rotating arm, and the inner side of the rotating ring extends inward to form a cover plate for covering the notch.

[0010] Preferably, two horizontally arranged electric push rods are embedded and fixedly installed inside the connector, and the telescopic ends of the two electric push rods are respectively connected to the top surface and the bottom surface of the sampling box opening.

[0011] Preferably, the bottom of the sampling box is rotatably connected to a vertically arranged lead screw on one side of the box opening, and a cutting blade is threaded onto the lead screw. The cutting blade moves up and down along the direction of the sampling box opening and is inserted into the other side of the sampling box opening.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the cover can prevent the soil drilled out by the drill bit from entering the sampling box. During sampling, the two electric telescopic rods can be extended to raise the lifting ring under the connection of the connecting plate. The rising of the lifting ring pushes the soil accumulated near the connecting head upward and removes it, ensuring that there is no soil accumulation on the side of the connecting head and ensuring that the sampling box can be smoothly extended from the connecting head.

[0014] 2. In this utility model, after the sampling box opening is inserted into the inner wall of the hole, the soil sample inside the sampling box can be cut and separated by rotating the screw to raise and lower the cutting blade. This makes it convenient to bring the sample into the connector for collection and storage when the sampling box is reset. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of a coal mine surveying and positioning instrument is provided for this utility model;

[0016] Figure 2 This utility model proposes a coal mine surveying and positioning instrument. Figure 1 A schematic diagram of the side view structure;

[0017] Figure 3 This utility model proposes a coal mine surveying and positioning instrument. Figure 1 A schematic diagram of the side section structure;

[0018] Figure 4This utility model proposes a coal mine surveying and positioning instrument. Figure 2 A schematic diagram of the side section structure.

[0019] Legend: 1. Drill bit; 2. Inclined groove; 3. Connector; 4. Cap; 5. Rotary ring; 6. Lifting ring; 7. Connecting plate; 8. Rotating arm; 9. Sampling box; 10. Electric push rod; 11. Cutting knife; 12. Lead screw; 13. Notch; 14. Cover plate; 15. Groove; 16. Electric telescopic rod. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4 As shown, a coal mine surveying and positioning instrument includes a drill bit 1. The drill bit 1 is passively rotated to drill into the ground. A connector 3 is fixedly installed at the top of the drill bit 1. The outer edge of the connector 3 is fitted with the top edge of the drill bit 1 with a gap, which facilitates the rise of the soil drilled out by the drill bit 1. A sampling box 9 is inserted into the side of the connector 3, and a lifting ring 6 with the same diameter as the top of the drill bit 1 is sleeved on the surface of the connector 3. By raising the lifting ring 6 on the surface of the connector 3, the soil accumulated around the connector 3 can be lifted, thus clearing the soil around the connector 3 and facilitating the sliding extension of the sampling box 9 from the connector 3. A cover 4 is fixedly installed on the inner side of the upper surface of the lifting ring 6 to cover the side opening of the sampling box 9. The cover 4 can prevent the soil drilled out by the drill bit 1 from entering the sampling box 9. Two symmetrically arranged electric telescopic rods 16 are embedded in the top of the connector 3. The telescopic ends of the electric telescopic rods 16 face upward and are fixedly installed with a connecting plate 7. The connecting plate 7 is slidably connected to the side of the connector 3 and the bottom edge of the connecting plate 7 is fixedly connected to the inner edge of the upper surface of the lifting ring 6. By extending the two electric telescopic rods 16, the lifting ring 6 can be raised to clean the soil around the connector 3 under the connection of the connecting plate 7.

[0023] To ensure thorough cleaning of the gravel: the cone surface of drill bit 1 has several inclined grooves 2 along the generatrix direction, the inclined grooves 2 extend to the top of drill bit 1, and the side of the lifting ring 6 has slots 15 corresponding to the inclined grooves 2. The top of the lifting ring 6 is rotatably connected to a rotating ring 5 coaxially arranged with the connector 3. The outer side of the rotating ring 5 also has a slot 15 corresponding to any of the inclined grooves 2, and the inner side of the rotating ring 5 is clearance-fitted with the surface of the connector 3. The inclined grooves 2 and slots 15 are used to transfer the soil drilled by drill bit 1 upward to the top of drill bit 1. When the lifting ring 6 rises to clean the soil around the connector 3, the rotating ring 5 rotates to make the slots 15 on its surface misaligned with the slots 15 on the surface of the lifting ring 6, thus ensuring that the top of drill bit 1 is completely closed. Therefore, when the lifting ring 6 drives the rotating ring 5 to rise synchronously, the soil around the connector 3 can be completely removed.

[0024] A rotating arm 8 is rotatably connected to the center of the top of connector 3. In use, the rotating arm 8 is driven to rotate by a motor embedded in the top of connector 3. The rotating arm 8 is slidably connected to the side of connector 3 and inserted into the inner side of rotating ring 5. Figure 4 As shown, when the rotating arm 8 revolves around the central axis of the connector 3, it drives the rotating ring 5 to rotate synchronously under the action of insertion, which can control whether the slots 15 on the rotating ring 5 and the lifting ring 6 are aligned. The bottom edge of the rotating arm 8 is slidably connected to the upper surface of the lifting ring 6. The inner side of the upper surface of the lifting ring 6 is provided with a notch 13 for insertion with the rotating arm 8. The inner side of the rotating ring 5 extends inward to form a cover plate 14 for covering the notch 13. When the slots 15 on the surface of the rotating ring 5 need to be misaligned with the slots 15 on the surface of the lifting ring 6, when the rotating arm 8 rotates and drives the rotating ring 5 to rotate, the cover plate 14 on the inner side of the rotating ring 5 will rotate synchronously and thus misalign with the notch 13. Therefore, when the rotating arm 8 rotates above the notch 13, when the lifting ring 6 drives the rotating ring 5 to rise, the notch 13 ensures that the lifting ring 6 can pass smoothly through the rotating arm 8 and drive the rotating ring 5 to slide and rise along the surface of the rotating arm 8.

[0025] Two horizontally mounted electric push rods 10 are embedded and fixed inside the connector 3. The telescopic ends of the two electric push rods 10 are connected to the top and bottom surfaces of the sampling box 9, respectively. By extending the electric push rods 10, the sampling box 9 can extend out of the connector 3 and be inserted into the inner wall of the hole formed by the drill bit 1. The bottom of the sampling box 9 is rotatably connected to a vertically mounted lead screw 12 on one side of the box opening. A cutting blade 11 is threaded onto the lead screw 12. The cutting blade 11 moves up and down along the direction of the sampling box 9 opening and is inserted into the other side of the sampling box 9 opening. In this solution, another motor can be installed inside the sampling box 9 to drive the lead screw 12 to rotate. By using the threaded connection between the cutting blade 11 and the lead screw 12 and the insertion into the sampling box 9 opening, after the sampling box 9 opening is inserted into the inner wall of the hole, the rotation of the lead screw 12 can raise and lower the cutting blade 11 to cut and separate the soil sample inside the sampling box 9. This makes it convenient to bring the sample into the connector 3 for collection and storage when the sampling box 9 is reset.

[0026] Working principle: In use, drill bit 1 replaces the drill bit in a coal mine surveying and positioning instrument with publication number CN221037418U. Specifically, the connector 3 at the top of drill bit 1 in this solution is connected to the bottom of the "connecting rod" in the same instrument. This allows the "connecting rod" to drive the connector 3 and drill bit 1 to rotate, enabling drill bit 1 to drill into the ground. During drilling, the pulverized soil is transported through the inclined groove 2 and the slot 15 to the area above drill bit 1. Upon drill bit 1 reaching... After sampling, under the connection of the connecting plate 7, the electric telescopic rod 16 extends to push the lifting ring 6 and the rotating ring 5 to rise and clean the soil around the connector 3. After cleaning, the electric push rod 10 extends to allow the sampling box 9 to extend out of the connector 3 and insert into the inner wall of the hole formed by the drill bit 1. After the sampling box 9 is inserted into the inner wall of the hole, the cutting blade 11 is raised and lowered by rotating the lead screw 12 to cut and separate the soil sample in the sampling box 9. This makes it convenient to bring the sample into the connector 3 for collection and storage when the sampling box 9 is reset.

[0027] The wiring diagrams of the electric push rod 10, electric telescopic rod 16, and motor in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the electric push rod 10, electric telescopic rod 16, and motor will not be explained in detail.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A coal mine surveying and positioning instrument, comprising a drill bit (1), characterized in that: A connector (3) is fixedly installed at the top of the drill bit (1). A sampling box (9) is inserted into the side of the connector (3). A lifting ring (6) with the same diameter as the top of the drill bit (1) is sleeved on the surface of the connector (3). A cover (4) for covering the side opening of the sampling box (9) is fixedly installed on the inner side of the upper surface of the lifting ring (6). Two symmetrically arranged electric telescopic rods (16) are embedded in the top of the connector (3). The telescopic ends of the electric telescopic rods (16) face upward and are fixedly installed with a connecting plate (7). The connecting plate (7) is slidably connected to the side of the connector (3) and the bottom edge of the connecting plate (7) is fixedly connected to the inner edge of the upper surface of the lifting ring (6).

2. The coal mine mapping and positioning instrument according to claim 1, characterized in that: The drill bit (1) has several inclined grooves (2) on its conical surface along the generatrix direction. The inclined grooves (2) extend to the top of the drill bit (1), and the lifting ring (6) has a slot (15) on its side that corresponds to the inclined grooves (2).

3. The coal mine mapping and positioning instrument according to claim 2, characterized in that: The top of the lifting ring (6) is rotatably connected to a rotating ring (5) coaxially arranged with the connector (3). The outer side of the rotating ring (5) is also provided with a slot (15) corresponding to any inclined groove (2), and the inner side of the rotating ring (5) is in clearance fit with the surface of the connector (3).

4. The coal mine mapping and positioning instrument according to claim 3, characterized in that: A rotating arm (8) is rotatably connected to the center of the top of the connector (3). The rotating arm (8) is slidably connected to the side of the connector (3) and inserted into the inner side of the rotating ring (5). The bottom edge of the rotating arm (8) is slidably connected to the upper surface of the lifting ring (6).

5. The coal mine mapping and positioning instrument according to claim 4, characterized in that: The inner side of the upper surface of the lifting ring (6) is provided with a notch (13) for insertion into the rotating arm (8), and the inner side of the rotating ring (5) extends inward to form a cover plate (14) for covering the notch (13).

6. The coal mine mapping and positioning instrument according to claim 1, characterized in that: The connector (3) has two horizontally arranged electric push rods (10) embedded and fixedly installed inside. The telescopic ends of the two electric push rods (10) are respectively connected to the top and bottom surfaces of the sampling box (9).

7. The coal mine mapping and positioning instrument according to claim 6, characterized in that: The bottom of the sampling box (9) is rotatably connected to a vertically arranged lead screw (12) on one side of the box opening. A cutting blade (11) is threaded onto the lead screw (12). The cutting blade (11) moves up and down along the direction of the sampling box (9) opening and is inserted into the other side of the sampling box (9) opening.

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