Geological drill rod for coal mine

Abstract

The geological drill rod comprises a drill rod body and a connecting rod arranged at the bottom of the drill rod body, a drill bit is arranged at the bottom of the connecting rod body, an inserting groove is formed in the bottom of the drill rod body, an inserting block is fixedly connected to the top of the connecting rod body, and clamping blocks are arranged on the periphery of the inserting block in an inserted mode. A limiting plate is fixedly connected to one side of the clamping block, and a first spring is arranged on one side of the limiting plate. According to the utility model, firstly, through the matching of the inserting block and the inserting groove, the torsion transmission between the drill rod and the connecting rod can be increased after the drill rod and the connecting rod are connected, the connection looseness caused by the rotation of the drill rod and the connecting rod is avoided, the use effect is improved, and one end of the clamping block is inserted into the clamping groove, so that the installation and the fixation are convenient; and the pushing blocks are sequentially controlled by moving the moving ring to push the clamping blocks, disassembly and replacement are convenient, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine exploration, and more specifically, to a geological drill rod for coal mines. Background Art

[0002] Geological drilling refers to a geological project that uses certain drilling machinery and technology to obtain rock and mineral cores below the surface to make reliable evaluations of geological and mineral resource parameters. With the rapid development of social economy, the demand for coal is increasing. The exploration of new coal mines is the guarantee of coal production. The tasks of coal exploration include understanding coal-bearing strata, coal seams and mineable coal seams, coal quality and coal types, structures, hydrogeological conditions and other mining technical conditions. In coal mining, drilling rigs and drill rods are commonly used equipment. Geological drill rods are geological drilling tools designed and produced using geological alloy steel pipes through friction welding technology.

[0003] The utility model with Chinese patent application number CN202022422684.8 discloses a drill rod for geological prospecting. When in use, the utility model fixes the first drill rod and the second drill rod through a locking sleeve so that they will not be easily disconnected during work. The drill rod can also be matched according to the situation to adjust the length. The block set on the clamping column is slid into the clamping groove, and the elastic force generated by the fixing spring fixes the drill bit. It is more convenient for the staff to replace the drill bit, which improves the work efficiency of the staff.

[0004] However, in actual use, the drill bit of the existing geological drill pipe is generally connected to the bottom end of the drill pipe by a thread. Since the drill pipe needs to rotate forward and reverse, the threaded connection of the drill pipe will loosen due to the two-way rotation, affecting the use effect. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a geological drill rod for coal mines to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a geological drill rod for coal mines, comprising a drill rod and a connecting rod arranged at the bottom of the drill rod, a drill bit is arranged at the bottom of the connecting rod, a slot is opened at the bottom of the drill rod, an insert block is fixedly connected to the top of the connecting rod, a clamping block is inserted around the insert block, one side of the clamping block is fixedly connected to a limit plate, and one side of the limit plate is provided with a first spring;

[0007] It can be seen that the torque transmission of the connection between the drill rod and the connecting rod can be improved by setting the slot and the plug block, the stability of the connection can be improved, and the use effect can be improved. The first spring pushes the limit plate, which can generate a thrust at one end of the clamping block, which is convenient for clamping and fixing.

[0008] A card slot is provided around the middle of the slot at positions corresponding to the card block, a threaded rod is provided at the bottom of the inner cavity of the card slot, one end of the threaded rod is fixedly connected to a gear, one end of the threaded rod is sleeved with a moving plate, and a push block is provided on one side of the top of the moving plate;

[0009] It can be seen that, by setting the card slot, one end of the card block can be extended to the inside of the card slot for card connection and fixation, and by rotating the gear to control the threaded rod to rotate, the moving plate drives the pushing block to move horizontally, and one end of the card block can be moved out of the inside of the card slot, which is convenient for disassembly and replacement, and improves the use effect;

[0010] The top end of the connecting rod is sleeved with a protective mechanism, the bottom end of the drill rod is sleeved with a moving ring, the inner cavity of the moving ring is fixedly connected with a first limit block, the middle of the first limit block is inserted with a first stabilizing rod, and one side of the first limit block is fixedly connected with a toothed plate;

[0011] It can be seen that the protective mechanism set up can limit the position of the movable ring to improve the use effect, and the first limit block can be driven to slide in the middle of the first stabilizer rod by moving the movable ring, thereby driving the tooth plate to move downward, and the gear can be rotated to improve the use effect.

[0012] Preferably, the plug block is adapted to the slot, the cross-sectional shape of the plug block is set to be a square, and a buffer pad is fixedly connected to the top of the plug block;

[0013] It can be seen that inserting the plug into the slot can facilitate the connection and installation of the drill rod and the connecting rod and improve the torque transmission strength. At the same time, the buffer pad plays a buffering role to improve the use effect.

[0014] Preferably, the limit plate and the first spring are arranged in the middle of the insert block, the end wall of the clamping block away from the limit plate is arranged as an inclined surface, and the end of the clamping block away from the limit plate extends to the inside of the clamping slot and corresponds to the position of the push block;

[0015] It can be seen that by pushing the limit plate through the first spring, the card block can be pushed, so that one end of the card block generates a force to insert into the card slot, so that when the card block corresponds to the card slot, one end of the card block is automatically inserted into the interior of the card slot, thereby improving the fixing effect.

[0016] Preferably, the threaded rod is threadedly connected to the moving plate, the gear is arranged on one side of the toothed plate, the gear is meshed with the toothed plate, the pushing block is arranged on the side of the moving plate close to the clamping block, the first limit block and the first stabilizing rod are both arranged in the middle of the drill rod, and the outer surface diameter of the moving ring is the same as the outer surface diameter of the drill rod;

[0017] It can be seen that the rotation of the gear controls the rotation of the threaded rod, thereby causing the movable plate to move horizontally. The pushing block pushes one side of the card block to improve the use effect, and the moving ring can control the up and down movement of the toothed plate through the first limit block, thereby causing the gear to rotate and facilitate driving. The first stabilizing rod can improve the stability of the up and down movement of the first limit block.

[0018] Preferably, the protection mechanism comprises a protection collar sleeved on the top of the connecting rod, the inner cavity of the protection collar is symmetrically fixedly connected with a second limit block, the middle of the second limit block is fixedly inserted with a second stabilizing rod, and the lower end of the second stabilizing rod is sleeved with a second spring;

[0019] It can be seen that by pushing the second limit block through the second spring, the protective ring can generate an upward force, so that the top end of the protective ring can be mounted on the outer surface of the movable ring, thereby protecting the movable ring and improving the use effect. The stability of the movement of the second limit block can be improved through the second stabilizing rod.

[0020] Preferably, the second stabilizing rod and the second spring are both arranged in the middle of the connecting rod, the top end of the protective collar is sleeved with the bottom end of the drill rod, and the protective collar is arranged on the outer surface of the moving ring;

[0021] It can be seen that the protective collar is used to protect the position of the moving ring to improve the use effect.

[0022] Technical effects and advantages of the utility model:

[0023] 1. The utility model firstly increases the torque transmission between the drill rod and the connecting rod after the drill rod and the connecting rod are connected by the cooperation of the provided plug block and the slot, thereby avoiding the loose connection caused by the rotation of the drill rod and the connecting rod, and improving the use effect. One end of the provided card block is inserted into the card slot, which can be conveniently installed and fixed, and the pushing block is controlled in turn by moving the moving ring to push the card block, which is convenient for disassembly and replacement, and improves the use effect.

[0024] 2. The utility model also protects the movable ring by the protective collar, which can prevent the movement of the movable ring caused by the movement of external soil, thereby affecting the use effect, and plays a protective role. The second spring pushes the second limit block, so that one end of the protective collar can generate a force sleeved on the outer surface of the movable ring, thereby improving the use effect. The connection between the tooth plate and the gear plays a transmission role, thereby improving the use effect.

[0025] In summary, through the mutual influence of the above-mentioned multiple effects, the drill rod and the connecting rod can be easily disassembled and installed, and are convenient for replacement and use without affecting the torque transmission between the drill rod and the connecting rod, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] Figure 3 It is a schematic diagram of the disassembled structure of the tooth plate and the threaded rod of the utility model.

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting rod of the utility model.

[0030] The accompanying drawings are marked as follows: 1. drill rod; 2. connecting rod; 3. drill bit; 4. slot; 5. plug block; 6. socket; 7. threaded plug rod; 8. clamping block; 9. limit plate; 10. first spring; 11. clamping groove; 12. threaded rod; 13. gear; 14. moving plate; 15. pushing block; 16. moving ring; 17. first limit block; 18. first stabilizing rod; 19. tooth plate; 20. protective collar; 21. second limit block; 22. second stabilizing rod; 23. second spring; 24. buffer pad. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] As attached Figure 1-4 A geological drill rod for coal mines shown in the figure comprises a drill rod 1 and a connecting rod 2 arranged at the bottom of the drill rod 1, a drill bit 3 is arranged at the bottom of the connecting rod 2, a slot 4 is provided at the bottom of the drill rod 1, an insert block 5 is fixedly connected to the top of the connecting rod 2, a clamping block 8 is inserted around the inserting block 5, one side of the clamping block 8 is fixedly connected to a limit plate 9, and one side of the limit plate 9 is provided with a first spring 10;

[0033] A card slot 11 is provided around the middle of the slot 4 at positions corresponding to the card block 8, a threaded rod 12 is provided at the bottom of the inner cavity of the card slot 11, one end of the threaded rod 12 is fixedly connected to a gear 13, one end of the threaded rod 12 is sleeved with a movable plate 14, a pushing block 15 is provided on one side of the top of the movable plate 14, the top of the connecting rod 2 is sleeved with a protective mechanism, the bottom end of the drill rod 1 is sleeved with a movable ring 16, the inner cavity of the movable ring 16 is fixedly connected with a first limit block 17, the middle of the first limit block 17 is inserted with a first stabilizing rod 18, and one side of the first limit block 17 is fixedly connected to a toothed plate 19.

[0034] As attached Figure 1-4 As shown, the plug block 5 is adapted to the slot 4, the cross-sectional shape of the plug block 5 is set to be a square, the top of the plug block 5 is fixedly connected with a buffer pad 24, the limit plate 9 and the first spring 10 are arranged in the middle of the plug block 5, the end wall of the card block 8 away from the limit plate 9 is set as an inclined surface, the end of the card block 8 away from the limit plate 9 extends to the inside of the card slot 11 and corresponds to the position of the push block 15, the threaded rod 12 is threadedly connected to the moving plate 14, the gear 13 is arranged on one side of the tooth plate 19, the gear 13 is meshed with the tooth plate 19, and the push block 15 is arranged on the moving plate 14 is close to the side of the block 8, the first limit block 17 and the first stabilizing rod 18 are both arranged in the middle of the drill rod 1, and the outer surface diameter of the moving ring 16 is the same as the outer surface diameter of the drill rod 1, so that the drill rod 1 and the connecting rod 2 can be connected by inserting the insert block 5 into the slot 4, and the torque transmission effect of the rotation of the drill rod 1 and the connecting rod 2 is improved, and the first spring 10 pushes the limit plate 9, so that one end of the block 8 can be automatically inserted into the slot 11, so as to automatically fix the installation of the insert block 5, and improve the use effect;

[0035] By moving the movable ring 16 downward, the toothed plate 19 can be driven downward by the first limit block 17, so that the gear 13 can drive the threaded rod 12 to rotate, so that the movable plate 14 can drive the pushing block 15 to move horizontally, and push one end of the block 8, so as to facilitate pushing one end of the block 8 out of the inside of the slot 11, and facilitate the disassembly of the insert block 5 and the drill rod 1, so as to replace and repair them and improve the use effect.

[0036] As attached Figure 1 and 4 As shown, the protection mechanism includes a protection ring 20 sleeved on the top of the connecting rod 2, and the inner cavity of the protection ring 20 is symmetrically fixedly connected with a second limit block 21, and a second stabilizing rod 22 is fixedly inserted in the middle of the second limit block 21, and a second spring 23 is sleeved on the lower end of the second stabilizing rod 22. The second stabilizing rod 22 and the second spring 23 are both arranged in the middle of the connecting rod 2, and the top of the protection ring 20 is sleeved on the lower end of the drill pipe 1. The protection ring 20 is arranged on the outer surface of the moving ring 16, so that the second spring 23 can push the second limit block 21, so that the top of the protection ring 20 can be sleeved on the outer surface of the moving ring 16, thereby limiting the position of the moving ring 16 and improving the use effect. The second stabilizing rod 22 can also improve the stability of the movement of the second limit block 21 and improve the use effect.

[0037] Working principle of the utility model: when in use, it is only necessary to insert the insert block 5 into the interior of the drill rod 1 until the clamping block 8 corresponds to the clamping slot 11, and one end of the clamping block 8 will automatically be inserted into the interior of the clamping slot 11 to complete the clamping connection between the drill rod 1 and the connecting rod 2, without affecting the torque transmission between the drill rod 1 and the connecting rod 2, thereby improving the use effect;

[0038] At this time, one end of the protective collar 20 will be sleeved on the outer surface of the moving ring 16 to protect the position of the moving ring 16 and improve the use effect;

[0039] When disassembling, you only need to move the protective ring 20 downward to let the movable ring 16 leak out, and then move the movable ring 16 downward, and then control the pushing block 15 to move horizontally to push one end of the block 8 out from the inside of the slot 11, so as to facilitate the separation of the drill rod 1 and the connecting rod 2, and facilitate your disassembly and replacement, thereby improving the use effect.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A geological drill rod for coal mines, comprising a drill rod (1) and a connecting rod (2) arranged at the bottom of the drill rod (1), wherein a drill bit (3) is arranged at the bottom of the connecting rod (2), characterized in that: A slot (4) is provided at the bottom of the drill rod (1), an insert block (5) is fixedly connected to the top of the connecting rod (2), clamping blocks (8) are inserted around the insert block (5), one side of the clamping block (8) is fixedly connected to a limit plate (9), and one side of the limit plate (9) is provided with a first spring (10); A card slot (11) is provided around the middle of the slot (4) at positions corresponding to the card block (8); a threaded rod (12) is provided at the bottom of the inner cavity of the card slot (11); one end of the threaded rod (12) is fixedly connected to a gear (13); one end of the threaded rod (12) is sleeved with a moving plate (14); a push block (15) is provided on one side of the top of the moving plate (14); The top end of the connecting rod (2) is sleeved with a protective mechanism, the bottom end of the drill rod (1) is sleeved with a moving ring (16), the inner cavity of the moving ring (16) is fixedly connected with a first limit block (17) around, the middle of the first limit block (17) is inserted with a first stabilizing rod (18), and one side of the first limit block (17) is fixedly connected with a toothed plate (19).

2. A geological drill rod for coal mines according to claim 1, characterized in that: The insert block (5) is adapted to fit the slot (4); the cross-sectional shape of the insert block (5) is set to be a square; and a buffer pad (24) is fixedly connected to the top of the insert block (5).

3. A geological drill rod for coal mines according to claim 1, characterized in that: The limit plate (9) and the first spring (10) are arranged in the middle of the insert block (5); an end wall of the clamping block (8) away from the limit plate (9) is arranged as an inclined surface; an end of the clamping block (8) away from the limit plate (9) extends to the inside of the clamping groove (11) and corresponds to the position of the pushing block (15).

4. A geological drill rod for coal mines according to claim 1, characterized in that: The threaded rod (12) is threadedly connected to the movable plate (14); the gear (13) is arranged on one side of the toothed plate (19); the gear (13) is meshed with the toothed plate (19); the pushing block (15) is arranged on one side of the movable plate (14) close to the clamping block (8); the first limit block (17) and the first stabilizing rod (18) are both arranged in the middle of the drill rod (1); and the outer surface diameter of the movable ring (16) is the same as the outer surface diameter of the drill rod (1).

5. A geological drill rod for coal mines according to claim 1, characterized in that: The protection mechanism comprises a protection collar (20) sleeved on the top end of the connecting rod (2); a second limit block (21) is symmetrically fixedly connected to the inner cavity of the protection collar (20) around the periphery; a second stabilizing rod (22) is fixedly inserted in the middle of the second limit block (21); and a second spring (23) is sleeved on the bottom end of the second stabilizing rod (22).

6. A geological drill rod for coal mines according to claim 5, characterized in that: The second stabilizing rod (22) and the second spring (23) are both arranged in the middle of the connecting rod (2), the top end of the protective collar (20) is sleeved with the bottom end of the drill rod (1), and the protective collar (20) is arranged on the outer surface of the moving ring (16).

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