Novel rock drilling drill rod with threaded connection structure

Abstract

The utility model relates to the technical field of drill rods, and discloses a novel drill rod with a threaded connection structure for rock drilling, which comprises a drill rod body, a threaded connector is fixedly mounted on the right surface of the drill rod body, a threaded connection sleeve is fixedly mounted on the left surface of the drill rod body, and a dust falling mechanism is arranged on the drill rod body. The dust falling mechanism comprises a bearing, a pipe sleeve, a cavity, a first hollow column, two drainage holes, a first spring, a circular ring, a movable column, two through holes and a second hollow column, the novel drill rod for rock drilling of the threaded connection structure can clamp and fix a water pipe through a clamping structure, water injection is convenient, a water source is injected into the cavity of the pipe sleeve, and the water pipe is prevented from falling off; the inner wall of the movable column is filled with a water source, a through hole formed in the outer surface of the movable column is aligned with a drainage hole formed in the outer surface of the first hollow column, the water source can be discharged to the outer surface of the drill rod body, dust generated during rock drilling is reduced, and pollution to the environment is prevented.

Description

Technical Field

[0001] This utility model relates to the field of drill rod technology, specifically to a novel drill rod with a threaded connection structure for rock drilling. Background Technology

[0002] Drill rods are tools used in mine tunnel engineering to connect drill bits and rock drills. Drill rods commonly used in mine tunnel engineering are hexagonal hollow steel and hollow round steel. Steel drill rods are available in pre-made steel drill rods and forged steel drill rods. Pre-made drill rods are forged to a certain length and then directly installed onto the drill bit to drill holes.

[0003] Existing drill rods, when used in rock drilling, constantly rub against the rock through rotation. During this friction process, the drill rod body heats up. Excessive heat can lead to a decrease in the rigidity of the drill rod body. Furthermore, rock drilling generates a large amount of dust, which accumulates on the drill rod body, reducing heat dissipation and causing environmental pollution. Therefore, a novel threaded connection structure for rock drilling drill rods is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel threaded connection structure for rock drilling rods, which solves the problem of excessive dust generation during rock drilling.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned goal of reducing dust generated during rock drilling with drill rods, this utility model provides the following technical solution: a novel drill rod with a threaded connection structure, comprising a drill rod body, a threaded connector fixedly installed on the right surface of the drill rod body, and a threaded connecting sleeve fixedly installed on the left surface of the drill rod body;

[0008] The drill rod body is equipped with a dust suppression mechanism, which includes a bearing, a sleeve, a cavity, a first hollow column, two drainage holes, a first spring, a ring, a moving column, two through holes, a second hollow column, two round holes, two balls, a slide groove, two second springs, two fixing plates, a collar, and a rubber sealing ring.

[0009] Preferably, the two bearings are fixedly sleeved on the outer surface of the drill rod body, the sleeve is fixedly sleeved on the outer surface of the two bearings, and the cavity is opened in the inner wall of the sleeve.

[0010] Preferably, the first hollow column is fixedly installed on the outer surface of the sleeve, two drainage holes are opened on the outer surface of the first hollow column, and the first spring is fixedly installed in the inner wall of the first hollow column.

[0011] Preferably, the ring is fixedly installed at the lower end of the first spring, the movable column is fixedly sleeved on the inner surface of the ring, and two through holes are opened on the outer surface of the movable column.

[0012] Preferably, the second hollow column is fixedly installed on the outer surface of the sleeve, and a groove is formed on the outer surface of the second hollow column;

[0013] Two round holes are formed in the inner wall of the groove, and two round beads are respectively set on the inner surface of the two round holes.

[0014] The rubber sealing ring is fixedly installed in the inner wall of the second hollow column.

[0015] Preferably, the two second springs are fixedly installed in the inner wall of the slide groove, and the two fixing plates are respectively fixedly installed on the upper ends of the two second springs;

[0016] The two fixing plates have beveled surfaces facing each other, and a collar is fixedly fitted onto the outer surface of the two fixing plates.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a novel threaded connection structure for rock drilling rods, which has the following beneficial effects:

[0019] 1. The new type of threaded connection structure for rock drilling rods can clamp and fix water pipes through a snap-fit ​​structure, facilitating water injection. By injecting water into the cavity of the pipe sleeve, the water fills the inner wall of the moving column, aligning the through hole on the outer surface of the moving column with the drainage hole on the outer surface of the first hollow column. This allows the water to be drained to the outer surface of the drill rod body, reducing dust generated during rock drilling and preventing environmental pollution.

[0020] 2. In this new type of threaded connection structure for rock drilling rod, when water injection stops, the first spring applies a downward thrust to the ring fixedly installed at the lower end. The ring drives the movable column fixedly installed on the inner surface to move downward. At this time, the through hole opened on the outer surface of the movable column is no longer aligned with the drainage hole opened on the outer surface of the first hollow column, thus stopping water injection and forming a one-way valve structure, which can play a certain role in preventing dust and blockage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a rock drilling rod with a novel threaded connection structure according to the present invention.

[0022] Figure 2 This is a schematic diagram of the drill rod body structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0024] Figure 4 This utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0025] In the diagram: 1. Drill rod body; 2. Threaded connector; 3. Threaded sleeve; 4. Bearing; 5. Sleeve; 6. Cavity; 7. First hollow column; 8. Drain hole; 9. First spring; 10. Ring; 11. Moving column; 12. Through hole; 13. Second hollow column; 14. Round hole; 15. Ball; 16. Slide groove; 17. Second spring; 18. Fixing plate; 19. Collar; 20. Rubber sealing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a new technical solution: a new type of rock drilling rod with a threaded connection structure, including a rod body 1, a threaded connector 2 fixedly installed on the right surface of the rod body 1, and a threaded connector sleeve 3 fixedly installed on the left surface of the rod body 1.

[0028] The drill rod body 1 is equipped with a dust suppression mechanism, which includes a bearing 4, a sleeve 5, a cavity 6, a first hollow column 7, two drainage holes 8, a first spring 9, a ring 10, a moving column 11, two through holes 12, a second hollow column 13, two round holes 14, two round balls 15, a sliding groove 16, two second springs 17, two fixing plates 18, a collar 19, and a rubber sealing ring 20.

[0029] Furthermore, two bearings 4 are fixedly sleeved on the outer surface of the drill rod body 1, and a sleeve 5 is fixedly sleeved on the outer surface of the two bearings 4. A cavity 6 is opened in the inner wall of the sleeve 5.

[0030] Furthermore, the first hollow column 7 is fixedly installed on the outer surface of the sleeve 5, two drainage holes 8 are opened on the outer surface of the first hollow column 7, and the first spring 9 is fixedly installed in the inner wall of the first hollow column 7.

[0031] Furthermore, the ring 10 is fixedly installed at the lower end of the first spring 9, the movable column 11 is fixedly sleeved on the inner surface of the ring 10, and two through holes 12 are opened on the outer surface of the movable column 11.

[0032] Furthermore, the second hollow column 13 is fixedly installed on the outer surface of the sleeve 5, and the groove 16 is formed on the outer surface of the second hollow column 13;

[0033] Two round holes 14 are formed in the inner wall of the groove 16, and two round beads 15 are respectively set on the inner surface of the two round holes 14.

[0034] The rubber sealing ring 20 is fixedly installed in the inner wall of the second hollow column 13.

[0035] Furthermore, two second springs 17 are fixedly installed in the inner wall of the slide groove 16, and two fixing plates 18 are respectively fixedly installed on the upper ends of the two second springs 17.

[0036] The opposing surfaces of the two fixing plates 18 are both inclined, and the collar 19 is fixedly sleeved on the outer surface of the two fixing plates 18.

[0037] This novel threaded connection structure for rock drilling rods involves applying a downward thrust to the collar 19 on the second hollow column 13, causing it to move downwards. Simultaneously, the collar 19 moves two fixing plates 18 fixedly mounted on the inner surface downwards. At this point, the two fixing plates 18 apply pressure to two second springs 17 fixedly mounted on the lower surface, causing them to contract. The two fixing plates 18 no longer obstruct the two round holes 14, meaning they no longer limit the movement of the two round beads 15 within them. When the water pipe is inserted into the inner surface of the second hollow column 13, the upward thrust on the collar 19 is no longer applied, and the two second springs 17 are no longer under stress. The two second springs 17 then apply an upward thrust to the two fixing plates 18 fixedly mounted at the upper end, causing them to strike the two round beads 15. This causes the two round beads 15 to move towards their opposite sides, clamping and fixing the water pipe. A rubber sealing ring 20 seals the joint between the second hollow column 13 and the water pipe, thus completing the water pipe installation. At this time, water can be injected into the cavity 6 of the sleeve 5. The water fills the inner wall of the moving column 11 and applies an upward thrust to the moving column 11. The moving column 11 drives the ring 10 fixedly installed on the outer surface to move upward. The ring 10 applies pressure to the first spring 9 fixedly installed on the upper surface, causing it to contract. At this time, the through hole on the outer surface of the moving column 11 aligns with the drain hole 8 on the outer surface of the first hollow column 7, allowing the water to be drained to the outer surface of the drill rod body 1, reducing dust generated during rock drilling and preventing environmental pollution. When water injection stops, the first spring 9 is no longer under force and expands. The first spring 9 applies a downward thrust to the ring 10 fixedly installed at the lower end, causing the ring 10 to drive the moving column 11 fixedly installed on the inner surface to move downward. At this time, the through hole 12 on the outer surface of the moving column 11 no longer aligns with the drain hole 8 on the outer surface of the first hollow column 7, thus stopping water injection and forming a one-way valve structure, which can play a certain role in dust prevention and clogging.

[0038] This novel threaded connection structure for rock drilling rods allows for clamping and fixing of water pipes via a snap-fit ​​mechanism, facilitating water injection. Water is injected into the cavity 6 of the sleeve 5, filling the inner wall of the movable column 11. This aligns the through-hole on the outer surface of the movable column 11 with the drainage hole 8 on the outer surface of the first hollow column 7, draining the water to the outer surface of the drill rod body 1. This helps suppress dust generated during rock drilling, preventing environmental pollution. When water injection stops, the first spring 9 applies a downward thrust to the lower fixed ring 10, causing the ring 10 to move the movable column 11 downwards. At this point, the through-hole 12 on the outer surface of the movable column 11 is no longer aligned with the drainage hole 8 on the outer surface of the first hollow column 7, thus stopping water injection. This forms a one-way valve structure, providing some dust prevention and clogging protection.

[0039] Working Principle: This novel threaded connection structure for rock drilling rods applies a downward thrust to the collar 19 on the second hollow column 13, causing it to move downwards. Simultaneously, the collar 19 moves the two fixing plates 18 fixedly mounted on the inner surface downwards. At this point, the two fixing plates 18 apply pressure to the two second springs 17 fixedly mounted on the lower surface, causing them to contract. The two fixing plates 18 no longer obstruct the two round holes 14, meaning they no longer limit the movement of the two round beads 15 inside the holes 14. When the water pipe is inserted into the inner surface of the second hollow column 13, the upward thrust on the collar 19 is no longer applied, and the two second springs 17 are no longer under force. The two second springs 17 then apply an upward thrust to the two fixing plates 18 fixed at the upper end, causing them to strike the two round beads 15. This causes the two round beads 15 to move towards their opposite sides, clamping and fixing the water pipe. A rubber sealing ring 20 seals the joint between the second hollow column 13 and the water pipe, thus completing the water pipe connection. During installation, water can be injected into the cavity 6 of the sleeve 5. The water fills the inner wall of the moving column 11 and applies an upward thrust to the moving column 11. The moving column 11 drives the ring 10 fixedly installed on the outer surface to move upward. The ring 10 applies pressure to the first spring 9 fixedly installed on the upper surface, causing it to contract. At this time, the through hole on the outer surface of the moving column 11 aligns with the drain hole 8 on the outer surface of the first hollow column 7, allowing water to be drained to the outer surface of the drill rod body 1, reducing dust generated during rock drilling and preventing environmental pollution. When water injection stops, the first spring 9 is no longer under force and expands. The first spring 9 applies a downward thrust to the ring 10 fixedly installed at the lower end, causing the ring 10 to drive the moving column 11 fixedly installed on the inner surface to move downward. At this time, the through hole 12 on the outer surface of the moving column 11 no longer aligns with the drain hole 8 on the outer surface of the first hollow column 7, thus stopping water injection and forming a one-way valve structure, which can play a certain role in preventing dust and blockage.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel rock drilling rod with a threaded connection structure, comprising a rod body (1), wherein a threaded connector (2) is fixedly mounted on the right surface of the rod body (1), characterized in that: A threaded connecting sleeve (3) is fixedly installed on the left surface of the drill rod body (1); The drill rod body (1) is equipped with a dust suppression mechanism, which includes a bearing (4), a sleeve (5), a cavity (6), a first hollow column (7), two drainage holes (8), a first spring (9), a ring (10), a moving column (11), two through holes (12), a second hollow column (13), two round holes (14), two round balls (15), a sliding groove (16), two second springs (17), two fixing plates (18), a collar (19), and a rubber sealing ring (20).

2. The rock drilling rod with a novel threaded connection structure according to claim 1, characterized in that: The two bearings (4) are fixedly sleeved on the outer surface of the drill rod body (1), the sleeve (5) is fixedly sleeved on the outer surface of the two bearings (4), and the cavity (6) is opened in the inner wall of the sleeve (5).

3. The rock drilling rod with a novel threaded connection structure according to claim 1, characterized in that: The first hollow column (7) is fixedly installed on the outer surface of the sleeve (5), two drainage holes (8) are opened on the outer surface of the first hollow column (7), and the first spring (9) is fixedly installed in the inner wall of the first hollow column (7).

4. The rock drilling rod with a novel threaded connection structure according to claim 1, characterized in that: The ring (10) is fixedly installed at the lower end of the first spring (9), the movable column (11) is fixedly sleeved on the inner surface of the ring (10), and two through holes (12) are opened on the outer surface of the movable column (11).

5. A novel threaded connection structure for rock drilling rod according to claim 1, characterized in that: The second hollow column (13) is fixedly installed on the outer surface of the sleeve (5), and the groove (16) is opened on the outer surface of the second hollow column (13); Two round holes (14) are formed in the inner wall of the groove (16), and two round beads (15) are respectively set on the inner surface of the two round holes (14); The rubber sealing ring (20) is fixedly installed in the inner wall of the second hollow column (13).

6. A novel threaded connection structure for rock drilling rod according to claim 1, characterized in that: Two second springs (17) are fixedly installed in the inner wall of the slide (16), and two fixing plates (18) are fixedly installed on the upper ends of the two second springs (17); The two fixing plates (18) are both inclined, and the collar (19) is fixedly sleeved on the outer surface of the two fixing plates (18).

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