Acoustic black hole-based sound insulation and noise reduction structure for drilling machine

Abstract

The invention discloses a sound insulation and noise reduction structure for a drilling machine based on acoustic black holes, relates to the field of noise reduction of drilling machines, and solves the problems that a traditional shock absorption and noise reduction material can be rapidly heated and aged after being impacted and rubbed for a long time; a machine adopting a spring buffering assembly can generate abnormal sound due to abrasion of a contact surface and physical structures such as a spring after being used for a long time, the machine comprises a drill bit body, the installation end of the drill bit body is connected with a buffering sleeve through a detachable structure, the other end of the buffering sleeve is fixedly communicated with a lengthened drill pipe, and a sound insulation structure is arranged outside the drill bit body. The sound insulation structure comprises a sound insulation cover, the sound insulation cover is arranged outside the drill bit body in a sleeving mode and makes contact with the drilling ground for use, the sound insulation cover and the buffer sleeve are both made of acoustic black hole plate layer materials, and the sound insulation cover and the buffer sleeve are made of the acoustic black hole plate layer materials, so that noise generated when a drilling machine works is effectively absorbed and isolated; and a quieter working environment is provided for operators.

Description

Technical Field

[0001] The present invention relates to the field of drilling rig noise reduction, and in particular to a sound insulation and noise reduction structure for a drilling rig based on an acoustic black hole. Background Art

[0002] Oil drilling rigs are a general term for a series of mechanical equipment that drives the drill tool into the formation during the oil drilling process. They are also called drilling machines. They are the main type of machinery in oil mines. Their main function is to drive the drill tool to break the rock at the bottom of the well, and to lower or extract the drill tool in the well. Oil drilling rigs generate a lot of noise during operation, which seriously affects the working environment and the lives of surrounding residents. Traditional noise reduction methods have limited effects and are difficult to meet environmental protection requirements. The sound insulation and noise reduction structure based on the principle of acoustic black holes, The drill rig's power cutter head achieves noise reduction and shock absorption effects by installing buffer materials. However, traditional shock-absorbing and noise-reducing materials will quickly heat up and age after experiencing long-term impact and friction. Rubber gaskets and sound insulation cotton are also prone to aging during continuous use, which will cause their elasticity to decrease or the sound to change. For machines that use spring buffer components, after long-term use, physical structures such as springs will produce abnormal noises due to wear of the contact surface. Summary of the Invention

[0003] The present invention aims to provide a drilling rig sound insulation and noise reduction structure based on an acoustic black hole that effectively absorbs and isolates the noise generated by the drilling rig during operation, thereby addressing the issues raised in the aforementioned background art. By utilizing the acoustic black hole principle, the structure efficiently absorbs sound waves, reduces noise transmission, extends the material's service life, improves the comfort of the drilling rig's operating environment, and ensures long-term, stable noise reduction.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sound insulation and noise reduction structure for a drilling rig based on an acoustic black hole, comprising a drill body, wherein the mounting end of the drill body is connected to a buffer sleeve through a detachable structure, and the other end of the buffer sleeve is fixedly connected to an extended drill pipe, and a sound insulation structure is provided on the outside of the drill body, and the sound insulation structure comprises a sound insulation cover, which is sleeved on the outside of the drill body and is used in contact with the drilling ground. The sound insulation cover and the buffer sleeve are both made of acoustic black hole plate material, and a spiral liquid guide hole is provided on the inside of the side arc surface of the sound insulation cover, the outside of the top position of the sound insulation cover is connected to the liquid inlet pipe, and the inside of the bottom end is connected to the liquid outlet pipe, and a support structure is provided on the top of the sound insulation cover.

[0005] Preferably, a conical sleeve is fixedly connected to the inner circular side surface of the sound insulation cover, the cross section of the conical sleeve is in a stepped shape, and the conical sleeve is made of acoustic black hole plate material.

[0006] Preferably, the exterior of the soundproof cover is compositely connected with a sun-proof coating.

[0007] Preferably, the detachable structure includes a square sleeve and a rocker arm, a square mounting head is provided at the mounting end of the drill body, a tooth groove is provided on the outer side surface of the square mounting head, the sliding sleeve of the square mounting head is provided inside the square sleeve, a rectangular groove is provided on the inner side surface of the square sleeve, a clamping plate is placed inside, and the clamping plate is provided with an integrally formed clamping tooth near the side surface of the square mounting head, a plurality of first U-shaped plates are fixedly connected to the embedded surface in the rectangular groove and the back surface of the clamping plate, and both ends of the rocker arm are rotatably connected to the first U-shaped plate through a first pin shaft.

[0008] Preferably, an oil cylinder is installed inside the top position of the square sleeve, and the output end of the oil cylinder is fixedly connected to the sliding frame through a cross push plate. The four sides of the sliding frame are fixedly connected with connecting rods, and the other end of the connecting rod is fixedly connected to the top of the adjacent first U-shaped plate.

[0009] Preferably, the square sleeve is square inside and round outside, an annular water dividing groove is provided on the top of the square sleeve, the bottom of the spiral hole is connected to the annular water dividing groove, and several water guide grooves are provided on the outer circular side of the square sleeve, the bottom of the water guide groove is connected to the annular water dividing groove.

[0010] Preferably, the support structure includes a support tube and a support rod. The top of the soundproof cover is fixedly connected to the support tube. The semi-circular surface of the support tube is fixedly connected to several sticking rods. The other semi-circular surface is installed with an arc door panel. The outer side of the sticking rod is fixedly connected to a second U-shaped plate. One end of the support rod is rotatably connected to the second U-shaped plate through a second pin shaft, and the other end is fixedly connected to a pad. The pad is provided with a mounting hole. Preferably, the first U-shaped plate in the rectangular groove and the first U-shaped plate on the back of the card plate are staggered. Preferably, the support tube and support rod are both made of aluminum alloy.

[0011] Compared with the prior art, the beneficial effects of the present invention are: by adopting a sound insulation cover and a buffer sleeve made of acoustic black hole plate material, the noise during the operation of the drilling rig is effectively absorbed and isolated, providing the operator with a quieter and more comfortable working environment. The buffer sleeve serves as a buffer component of the drill bit body, combined with the characteristics of the acoustic black hole plate material, to achieve an effective working buffering effect. The support structure effectively supports the sound insulation cover, reduces the propagation of vibration and noise, and further improves the sound insulation and noise reduction effect. The design of the conical sleeve not only enhances the structural strength of the sound insulation cover, but also through its stepped shape design and the application of acoustic black hole plate material.

[0012] Further enhancing sound insulation and noise reduction capabilities, coolant enters the enclosure through the inlet pipe and is discharged through the spiral guide hole and outlet pipe, effectively reducing the enclosure's temperature, delaying aging, and increasing its service life. Through optimized structural design and the synergistic effect of various components, the overall performance of the drilling rig has been significantly improved, ensuring operational safety, extending the equipment's lifespan, and achieving efficient and environmentally friendly operations. Furthermore, the tight fit of the square sleeve and the enclosure ensures all-round noise isolation, and the precise engagement of the tooth grooves and teeth enhances the stability of the device, allowing the drilling rig to maintain low noise levels while operating efficiently, providing operators with a more ideal working experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the drill body and the detachable structure of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the front view direction; Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the drill bit body and the detachable structure of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the soundproof cover in the front view direction of the present invention; Figure 6 This is a schematic diagram of a partially exploded three-dimensional structure of the detachable structure of the present invention; Figure 7 for Figure 3 A schematic diagram of the partially enlarged structure at center A; Figure 8 for Figure 6 A schematic diagram of the partially enlarged structure at point B in the middle; Figure 9 This is a schematic diagram of the three-dimensional structure of the support structure in the present invention from another angle.

[0014] Figure: 1, drill bit body; 101, square mounting head; 102, tooth groove; 2, detachable structure; 201, square sleeve; 202, oil cylinder; 203, slide frame; 204, cross push plate; 205, clamping plate; 206, rectangular groove; 207, water guide groove; 208, first U-shaped plate; 209, swing rod; 2010, first pin; 2011, clamping tooth; 2012, connecting rod; 2013, ring Water distribution trough; 3. Buffer sleeve; 4. Sound insulation structure; 401. Sound insulation cover; 402. Conical sleeve; 403. Liquid outlet pipe; 404. Spiral liquid guide hole; 405. Liquid inlet pipe; 5. Support structure; 501. Support tube; 502. Arc door panel; 503. Sticking rod; 504. Second pin shaft; 505. Second U-shaped plate; 506. Support rod; 507. Pad; 508. Mounting hole; 6. Extended drill pipe. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0016] See also Figure 1-9 The figure shows a sound insulation and noise reduction structure for a drilling rig based on an acoustic black hole, including a drill body 1. The mounting end of the drill body 1 is connected to a buffer sleeve 3 through a detachable structure 2. The other end of the buffer sleeve 3 is fixedly connected to an extended drill pipe 6. A sound insulation structure 4 is provided on the outside of the drill body 1. The sound insulation structure 4 includes a sound insulation cover 401. The sound insulation cover 401 is sleeved on the outside of the drill body 1 and is used in contact with the drilling ground. The sound insulation cover 401 and the buffer sleeve 3 are both made of acoustic black hole plate material. A spiral liquid guide hole 404 is provided on the inside of the side arc surface of the sound insulation cover 401. The outside of the top position of the sound insulation cover 401 is connected to a liquid inlet pipe 405, and the inside of the bottom end is connected to a liquid outlet pipe 403. A support structure 5 is provided on the top of the sound insulation cover 401.

[0017] It is worth noting that when the drilling rig is working, the drill body 1 performs drilling operations with the support of the buffer sleeve 3. At the same time, the sound insulation cover 401 is sleeved on the outside of the drill body 1. Through the characteristics of the acoustic black hole plate material, the noise during the operation of the drilling rig is absorbed and isolated, reducing the spread of noise. The acoustic black hole plate material has excellent noise absorption and isolation capabilities, providing operators with a quieter and more comfortable working environment. In addition, the buffer sleeve 3 serves as a buffer component of the drill body 1, and the characteristics of the acoustic black hole plate material can achieve an effective working buffering effect. The support structure 5 effectively supports the sound insulation cover 401, reduces the spread of vibration and noise, and improves the sound insulation and noise reduction effect. During the drilling process, the coolant enters the interior of the sound insulation cover 401 through the liquid inlet pipe 405, and is discharged through the spiral liquid guide hole 404 and the liquid outlet pipe 403, which can effectively reduce the temperature of the sound insulation cover 401 itself, so that its own high-temperature heat during use is taken away by the coolant, thereby reducing the aging rate and increasing the service life.

[0018] See also Figure 1 and Figure 5The inner circular side of the sound insulation cover 401 is fixedly connected with a conical sleeve 402. The cross-section of the conical sleeve 402 is stepped. The conical sleeve 402 is made of acoustic black hole plate material. The inner side of the conical sleeve 402 is in sliding contact with the outer side wall of the extended drill pipe 6. The extended drill pipe 6 can slide along the inner side of the conical sleeve 402 during the drilling process to adapt to the drilling requirements of different depths. The sliding contact between the conical sleeve 402 and the extended drill pipe 6 also reduces the generation of friction noise, further improving the overall sound insulation and noise reduction performance. This design makes the drilling rig more stable and efficient during operation, and also provides a quieter and more comfortable working environment for the operator.

[0019] This design of the conical sleeve 402 not only enhances the structural strength of the soundproof cover 401, but also further improves its sound insulation and noise reduction capabilities. The stepped shape design of the conical sleeve 402 enables the sound waves to be continuously reflected and absorbed during the propagation process, effectively reducing noise leakage. At the same time, the application of acoustic black hole plate materials makes the conical sleeve 402 have excellent noise absorption characteristics, which can convert most of the noise into other forms of energy, thereby significantly reducing the spread of noise and providing operators with a safer and healthier working environment.

[0020] The exterior of the soundproof cover 401 is compositely connected with a sun-proof coating.

[0021] The main function of the sunscreen coating is to prevent the soundproof cover 401 from aging due to prolonged exposure to sunlight, thereby affecting its sound insulation and noise reduction effect and service life. The sunscreen coating is made of weather-resistant materials, which can effectively resist the erosion of ultraviolet rays and reduce the light aging phenomenon on the surface of the soundproof cover 401.

[0022] See Figure 1 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 The detachable structure 2 includes a square sleeve 201 and a rocker arm 209. A square mounting head 101 is provided at the mounting end of the drill body 1. The outer side surfaces of the square mounting head 101 are provided with tooth grooves 102. The square mounting head 101 is slidably sleeved inside the square sleeve 201. The inner side surfaces of the square sleeve 201 are provided with rectangular grooves 206, and a clamping plate 205 is placed inside. The clamping plate 205 is provided with integrally formed teeth 2011 near the side of the square mounting head 101. The embedded surface of the rectangular groove 206 and the back of the clamping plate 205 are fixedly connected with several first U-shaped plates 208. Both ends of the rocker arm 209 are rotatably connected to the first U-shaped plate 208 through a first pin shaft 2010.

[0023] The latching teeth 2011 are adapted to the latching tooth groove 102, and the clamping plate 205 can slide in the rectangular groove 206. When the square mounting head 101 completely slides into the square sleeve 201, the clamping plate 205 is pushed by the oil cylinder 202, and the latching teeth 2011 are clamped into the latching tooth groove 102, thereby realizing a fixed connection between the square mounting head 101 and the square sleeve 201, and then realizing a stable connection between the drill body 1 and the detachable structure 2. The design of this detachable structure 2 not only facilitates the installation and disassembly of the drill body 1, but also improves the flexibility and inventiveness of the drilling rig.

[0024] See Figure 1 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 The oil cylinder 202 is installed inside the top position of the square sleeve 201, and the output end of the oil cylinder 202 is fixedly connected to the sliding frame 203 through the cross push plate 204. The four sides of the sliding frame 203 are fixedly connected with the connecting rod 2012, and the other end of the connecting rod 2012 is fixedly connected to the top of the adjacent first U-shaped plate 208.

[0025] The sliding frame 203 is slidably arranged in the square sleeve 201, which limits the sliding trajectory of the sliding frame 203 and ensures the stable sliding of the sliding frame 203 in the square sleeve 201. When the oil cylinder 202 is started, its output end pushes the cross push plate 204 to move, and the cross push plate 204 drives the sliding frame 203 to slide in the slide groove 210. The sliding frame 203 drives the first U-shaped plate 208 to move through the connecting rod 2012, and the first U-shaped plate 208 drives the card plate 205 to slide in the rectangular groove 206, thereby realizing the engagement or separation of the card teeth 2011 and the card tooth groove 102. The entire detachable structure 2 is placed inside the square sleeve 201, avoiding the erosion of liquid during the drilling process, thereby reducing the risk of rust damage. In addition, the structure does not rely on traditional bolts for installation, making the disassembly and assembly process simpler. At the same time, due to the design of the oil cylinder 202 driving the slide frame 203 and the first U-shaped plate 208 to move, the engagement and separation operations of the latching teeth 2011 and the latching tooth groove 102 become more flexible and efficient. This design not only improves the operational convenience of the equipment, but also effectively enhances the stability and durability of the sound insulation and noise reduction structure, ensuring the efficient operation of the drilling rig in complex working environments.

[0026] See Figure 3 and Figure 6 The inside of the square sleeve 201 is square and the outside is round. An annular water dividing groove 2013 is opened on the top of the square sleeve 201, and the bottom end of the spiral hole 301 is connected to the annular water dividing groove 2013. Several water guide grooves 207 are opened on the outer circular side of the square sleeve 201, and the bottom end of the water guide groove 207 is connected to the annular water dividing groove 2013.

[0027] The design of the annular water diversion trough 2013 helps to quickly guide the liquid generated during the drilling process into the water guide trough 207, and then discharge it through the spiral hole 301, effectively avoiding the accumulation of liquid inside the sound insulation and noise reduction structure, and reducing the risk of structural damage caused by liquid erosion. At the same time, this design also enhances the drainage performance of the structure. In addition, the connection design between the spiral hole 301 and the annular water diversion trough 2013 not only optimizes the drainage path, but also improves the drainage efficiency, further enhancing the stability and reliability of the drilling rig operation.

[0028] See Figure 1 and Figure 9 The support structure 5 includes a support tube 501 and a support rod 506. The top of the soundproof cover 401 is fixedly connected to the support tube 501. The semi-circular surface of the support tube 501 is fixedly connected to a plurality of sticking rods 503. The other semi-circular surface is installed with an arc door panel 502. The outer side of the sticking rod 503 is fixedly connected to the second U-shaped plate 505. One end of the support rod 506 is rotatably connected to the second U-shaped plate 505 through a second pin shaft 504, and the other end is fixedly connected to a pad 507. The pad 507 has a mounting hole 508. The design of the support structure 5 cleverly combines the support tube 501 with the support rod 506 to form a stable support system. The support tube 501 serves as the core component, and its bottom end is fixedly connected to the sound insulation cover 401, effectively ensuring the sealing and sound insulation effect of the sound insulation and noise reduction structure. The sticking rod 503 fixedly connected to the semicircular surface of the support tube 501 not only enhances the structural strength of the support tube 501, but also facilitates the installation of the curved door panel 502. The design of the curved door panel 502 allows the support structure 5 to be easily opened or closed when needed, making it easy to maintain and repair the drilling rig.

[0029] The second U-shaped plate 505 fixedly connected to the outer surface of the sticking rod 503 provides a stable support point for the rotational connection of the supporting rod 506. The supporting rod 506 is rotationally connected to the second U-shaped plate 505 through the second pin shaft 504. This design allows the supporting rod 506 to adjust its angle according to actual needs, further enhancing the flexibility and adaptability of the supporting structure 5. The pad 507 fixedly connected to the other end of the supporting rod 506 can conveniently fix the supporting structure 5 to the ground around the drilled hole through the opened mounting hole 508.

[0030] See Figure 4 and Figure 7 The first U-shaped plate 208 in the rectangular groove 206 and the first U-shaped plate 208 on the back of the card plate 205 are staggered. This staggered distribution design creates a certain gap between the first U-shaped plate 208 and the clamping plate 205, making it easier for the swing arm 209 to swing along its travel path.

[0031] The support tube 501 and the support rod 506 are made of aluminum alloy. Aluminum alloy, with its lightweight, high-strength, corrosion-resistant, and easy-to-process properties, is highly suitable for manufacturing support tubes 501 and support rods 506. As the primary supporting component of the sound insulation and noise reduction structure, support tubes 501 must withstand certain pressures and tensions, a requirement that aluminum alloy's high strength can meet. Its lightweight nature also reduces the weight of the entire support structure 5, facilitating installation and transportation. Support rods 506, on the other hand, require frequent angle adjustments to accommodate varying support requirements. The ease of processing of aluminum alloys makes their manufacture more flexible, enabling them to meet the needs of a variety of complex support scenarios. Therefore, the use of aluminum alloy in support tubes 501 and support rods 506 not only improves the overall performance of support structure 5 but also extends its service life. Furthermore, the corrosion resistance of aluminum alloy effectively protects the support structure from erosion by harsh environments, ensuring long-term stability and further enhancing the reliability and safety of support structure 5 in various engineering applications.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include" or "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sound insulation and noise reduction structure for a drilling rig based on an acoustic black hole, comprising a drill body (1), characterized in that: The mounting end of the drill body (1) is connected to a buffer sleeve (3) via a detachable structure (2), and the other end of the buffer sleeve (3) is fixedly connected to an extended drill pipe (6). A sound insulation structure (4) is provided on the outside of the drill body (1), and the sound insulation structure (4) includes a sound insulation cover (401). The sound insulation cover (401) is sleeved on the outside of the drill body (1) and is used in contact with the drilled ground. The sound insulation cover (401) and the buffer sleeve (3) are both made of acoustic black hole plate material. A spiral liquid guide hole (404) is provided inside the side arc surface of the sound insulation cover (401). The top end of the sound insulation cover (401) is connected to a liquid inlet pipe (405) on the outside, and to a liquid outlet pipe (403) on the inside on the bottom end. A support structure (5) is provided on the top of the sound insulation cover (401).

2. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 1, characterized in that: The inner circular side surface of the soundproof cover (401) is fixedly connected with a conical sleeve (402), the cross section of the conical sleeve (402) is in a stepped shape, and the conical sleeve (402) is made of acoustic black hole plate material.

3. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 2, characterized in that: The exterior of the soundproof cover (401) is compositely connected with a sun-proof coating.

4. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 1, characterized in that: The detachable structure (2) comprises a square sleeve (201) and a swing rod (209); a square mounting head (101) is provided at the mounting end of the drill body (1); the outer side surface of the square mounting head (101) is provided with a tooth groove (102); the square mounting head (101) is slidably sleeved inside the square sleeve (201); the inner side surface of the square sleeve (201) is provided with a rectangular groove (206), a clamping plate (205) is placed inside the rectangular groove; the side surface of the clamping plate (205) close to the square mounting head (101) is provided with an integrally formed tooth (2011); the embedded surface of the rectangular groove (206) and the back surface of the clamping plate (205) are fixedly connected to a plurality of first U-shaped plates (208); and both ends of the swing rod (209) are rotatably connected to the first U-shaped plates (208) via a first pin shaft (2010).

5. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 4, characterized in that: An oil cylinder (202) is installed inside the top position of the square sleeve (201), and the output end of the oil cylinder (202) is fixedly connected to the sliding frame (203) through a cross push plate (204). The four sides of the sliding frame (203) are fixedly connected to connecting rods (212), and the other end of the connecting rod (212) is fixedly connected to the top of the adjacent first U-shaped plate (208).

6. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 2, characterized in that: The square sleeve (201) is square inside and circular outside. An annular water dividing groove (213) is provided on the top of the square sleeve (201). The bottom of the spiral hole (301) is connected to the annular water dividing groove (213). A plurality of water guide grooves (207) are provided on the outer circular side of the square sleeve (201). The bottom of the water guide grooves (207) is connected to the annular water dividing groove (213).

7. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 1, characterized in that: The support structure (5) comprises a support tube (501) and a support rod (506); the top end of the soundproof cover (401) is fixedly connected to the support tube (501); a semi-circular surface of the support tube (501) is fixedly connected to a plurality of sticking rods (503); the other semi-circular surface is installed with an arc-shaped door panel (502); the outer side surface of the sticking rod (503) is fixedly connected to a second U-shaped plate (505); one end of the support rod (506) is rotatably connected to the second U-shaped plate (505) via a second pin shaft (504); the other end is fixedly connected to a pad (507); and the pad (507) is provided with a mounting hole (508).

8. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 4, characterized in that: The first U-shaped plate (208) located in the rectangular groove (206) and the first U-shaped plate (208) on the back side of the clamping plate (205) are staggered.

9. The acoustic black hole-based sound insulation and noise reduction structure for a drilling rig according to claim 7, characterized in that: The support tube (501) and the support rod (506) are both made of aluminum alloy.

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