Construction noise reduction device

Abstract

The utility model relates to the technical field of noise reduction, and discloses a construction noise reduction device which comprises a rotary digging pile machine, a large arm is fixedly connected to the rotary digging pile machine, a power head is movably installed on the large arm, a drill rod is movably installed on the left side of the large arm, and a drilling tool is fixedly installed at the bottom of the drill rod. The fixing cover is sleeved at the bottom of the power head, the fixing cover is pushed upwards, the limiting block can contract into the movable groove after extrusion, and when the bottom of the power head moves to the position below the limiting block, the spring on the movable rod can push the limiting block to move, so that the bottom of the limiting block can be clamped on the power head and quickly fixed on the power head. And when the drilling tool ascends, a connecting ring can be driven to move upwards, the connecting ring drives an annular scraping piece to clean the inner wall of the silencing cover, after the drilling tool unloads soil, a drilling rod drives the drilling tool to move downwards, due to the adsorbability of a magnetic ball, the connecting ring can move downwards along with the drilling tool, and the inner wall of the silencing cover is cleaned again.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction, in particular to a construction noise reduction device. Background Art

[0002] In recent years, with the rapid development of the construction industry and the increasing urbanization rate, the construction sites of many projects are in urban areas. The noise generated by pile foundation construction has a serious impact on the lives of residents and is also contrary to the significance of green environmental protection construction advocated by the country.

[0003] An existing construction noise reduction device for a rotary drilling rig (Publication No.: CN218299364U) has at least the following disadvantages: the above device is fixed by a cable. When installing, fixed points need to be welded on the equipment to fix the cable, which is troublesome to install. Moreover, when the rotary drilling rig rotates to unload soil in the sound insulation cover, the soil blocks are thrown out and will adhere to the inner wall of the sound insulation cover. In order to avoid the accumulation of soil layers affecting the operation of the machine, workers need to regularly disassemble the sound insulation cover for cleaning, which is very inconvenient. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a construction noise reduction device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A construction noise reduction device includes a rotary drilling rig. A boom is fixedly connected to the upper part of the rotary drilling rig. A power head is movably installed on the boom. A drill pipe is movably installed on the left side of the boom. A drill tool is fixedly installed at the bottom of the drill pipe. A fixed cover is arranged outside the power head. A sound insulation cover is arranged at the bottom of the fixed cover. The sound insulation cover can be sleeved outside the drill tool. A connecting block is fixedly connected between the fixed cover and the sound insulation cover. A connecting ring is arranged in the sound insulation cover. An annular scraping blade is fixedly installed on the outside of the connecting ring.

[0007] As a further scheme of the utility model, an activity groove is opened on the inner side of the fixed cover. An activity rod is movably installed in the activity groove. The right end of the activity rod penetrates through the top of the fixed cover and is fixedly installed with a control handle. A limiting block is fixedly installed at the left end of the activity rod. A spring is movably installed on the outside of the activity rod.

[0008] As a further scheme of the utility model, a magnetic ball is movably installed on the connecting ring, and the magnetic ball can be adsorbed on the top of the drill tool.

[0009] As a further scheme of the utility model, a sliding groove is opened on the inner wall of the sound insulation cover. A sliding block is fixedly installed at the position corresponding to the sliding groove on the annular scraping blade, and the sliding block can be movably clamped in the sliding groove.

[0010] As a further solution of the utility model, the top of the limit block is arc-shaped.

[0011] As a further solution of the utility model, the outer side of the annular scraping blade contacts the inner wall of the sound insulation cover.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, by sleeving the fixed cover on the bottom of the power head and then pushing the fixed cover upward, the limit block will shrink into the movable groove under extrusion. When the bottom of the power head moves below the limit block, the spring on the movable rod will push the limit block to reset. At this time, the bottom of the limit block will be stuck on the power head, and the device can be quickly fixed on the power head, so as to achieve the effect of convenient fixation.

[0014] 2. In the utility model, when the drill tool ascends, it will drive the connecting ring to move upward, and the connecting ring drives the annular scraping blade to clean the inner wall of the sound insulation cover. When the drill tool unloads soil, the drill pipe drives the drill tool to move downward. Due to the adsorption of the magnetic balls, the connecting ring will move downward with the drill tool. At this time, the annular scraping blade on the connecting ring will clean the inner wall of the sound insulation cover again, so as to achieve the effect of automatically cleaning the inside of the sound insulation cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic installation structure diagram of a construction noise reduction device proposed by the utility model;

[0016] Figure 2 is the utility model Figure 1 enlarged view at A in;

[0017] Figure 3 is a schematic overall structure diagram of a construction noise reduction device proposed by the utility model;

[0018] Figure 4 is a schematic partial structure diagram of a construction noise reduction device proposed by the utility model.

[0019] In the figure: 1, rotary drilling rig; 2, power head; 3, fixed cover; 4, sound insulation cover; 5, drill tool; 6, movable groove; 7, movable rod; 8, limit block; 9, control handle; 10, spring; 11, connecting block; 12, connecting ring; 13, magnetic ball; 14, sliding groove; 15, sliding block; 16, annular scraping blade; 17, boom; 18, drill pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Referring to Figures 1-4 , a construction noise reduction device includes a rotary drilling rig 1. A boom 17 is fixedly connected to the upper part of the rotary drilling rig 1. A power head 2 is movably installed on the boom 17. A drill pipe 18 is movably installed on the left side of the boom 17. A drilling tool 5 is fixedly installed at the bottom of the drill pipe 18. A fixed cover 3 is arranged outside the power head 2. A silencing cover 4 is arranged at the bottom of the fixed cover 3. The silencing cover 4 can be sleeved outside the drilling tool 5. A connecting block 11 is fixedly connected between the fixed cover 3 and the silencing cover 4. A connecting ring 12 is arranged in the silencing cover 4. An annular scraping blade 16 is fixedly installed on the outside of the connecting ring 12. The outside of the annular scraping blade 16 is in contact with the inner wall of the silencing cover 4. When the drilling tool 5 unloads soil and the drill pipe 18 drives the drilling tool 5 to move downward, due to the adsorption of the magnetic balls 13, the connecting ring 12 will move downward with the drilling tool 5. At this time, the annular scraping blade 16 on the connecting ring 12 will clean the inner wall of the silencing cover 4 again.

[0024] In this embodiment, an activity groove 6 is formed inside the fixed cover 3. An activity rod 7 is movably installed in the activity groove 6. The right end of the activity rod 7 penetrates through the top of the fixed cover 3 and is fixedly installed with a control handle 9. The left end of the activity rod 7 is fixedly installed with a limit block 8. The top of the limit block 8 is arc-shaped. A spring 10 is movably installed on the outer side of the activity rod 7. The fixed cover 3 is sleeved on the bottom of the power head 2. Then, the fixed cover 3 is pushed upward. Since the top of the limit block 8 is arc-shaped, the limit block 8 will contract into the activity groove 6 after being squeezed. When the bottom of the power head 2 moves below the limit block 8, the spring 10 on the activity rod 7 will push the limit block 8 to reset. At this time, the bottom of the limit block 8 will be stuck on the power head 2, and the device can be quickly fixed on the power head 2, thus achieving the effect of convenient fixation.

[0025] In this embodiment, a magnetic ball 13 is movably installed on the connecting ring 12. The magnetic ball 13 can adsorb on the top of the drill 5. Since the magnetic ball 13 is spherical, when the drill 5 rotates, the magnetic ball 13 will rotate on the connecting ring 12, so that the magnetic ball 13 will not frictionally disengage from the drill 5.

[0026] In this embodiment, a sliding groove 14 is formed on the inner wall of the sound insulation cover 4. A sliding block 15 is fixedly installed on the annular scraping blade 16 corresponding to the position of the sliding groove 14. The sliding block 15 can be movably engaged in the sliding groove 14. When the top of the drill 5 moves out of the sound insulation cover 4, due to the limitation of the sliding groove 14 on the sliding block 15, the connecting ring 12 cannot continue to move downward. At this time, the magnetic ball 13 will disengage from the top of the drill 5.

[0027] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: During use, the fixing cover 3 is sleeved on the bottom of the power head 2, and then the fixing cover 3 is pushed upward. Since the top of the limit block 8 is arc-shaped, the limit block 8 will contract into the movable slot 6 after being squeezed. When the bottom of the power head 2 moves below the limit block 8, the spring 10 on the movable rod 7 will push the limit block 8 to reset. At this time, the bottom of the limit block 8 will be stuck on the power head 2, and then the device can be quickly fixed on the power head 2, thus achieving the effect of convenient fixation. After the silencing device is fixed, the drilling tool 5 is fixed to the bottom of the drill rod 18. When unloading soil, the drill rod 18 rises to drive the drilling tool 5 into the silencing cover 4. The top of the drilling tool 5 will contact the magnetic balls 13 on the connecting ring 12 in the silencing cover 4. At this time, the magnetic balls 13 will adsorb on the top of the drilling tool 5. When the drilling tool 5 rises, it will drive the connecting ring 12 to move upward. The connecting ring 12 drives the annular scraping blade 16 to clean the inner wall of the silencing cover 4. When the drilling tool 5 rises to the top, it will start to rotate to unload soil. Since the magnetic balls 13 are spherical, the magnetic balls 13 will rotate on the connecting ring 12 when the drilling tool 5 rotates, so that the magnetic balls 13 will not frictionally disengage from the drilling tool 5. When the drilling tool 5 unloads soil, the drill rod 18 drives the drilling tool 5 to move downward. Due to the adsorption of the magnetic balls 13, the connecting ring 12 will move downward with the drilling tool 5. At this time, the annular scraping blade 16 on the connecting ring 12 will clean the inner wall of the silencing cover 4 again. When the top of the drilling tool 5 moves out of the silencing cover 4, due to the limitation of the sliding slot 14 on the slider 15, the connecting ring 12 cannot continue to move downward. At this time, the magnetic balls 13 will disengage from the top of the drilling tool 5, thus achieving the effect of automatically cleaning the inside of the silencing cover 4.

[0028] In this solution, the specific connection methods and working principles of multiple electrical components are well-known technologies in the field, which belong to the common knowledge in the field. Only their use is involved, and no improvement is made to them. Moreover, the present utility model mainly aims to protect mechanical devices, so the control method and circuit connection of the present utility model will not be further explained in detail.

[0029] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A construction noise reduction device, comprising a rotary pile driver (1), characterized in that: The upper part of the rotary pile driver (1) is fixedly connected to a boom (17), a power head (2) is movably mounted on the boom (17), a drill rod (18) is movably mounted on the left side of the boom (17), a drilling tool (5) is fixedly mounted on the bottom of the drill rod (18), a fixed cover (3) is arranged on the outside of the power head (2), a silencer cover (4) is arranged at the bottom of the fixed cover (3), the silencer cover (4) can be sleeved on the outside of the drilling tool (5), a connecting block (11) is fixedly connected between the fixed cover (3) and the silencer cover (4), a connecting ring (12) is arranged in the silencer cover (4), and an annular scraper (16) is fixedly mounted on the outside of the connecting ring (12).

2. A construction noise reduction device according to claim 1, characterized in that: A movable groove (6) is provided on the inner side of the fixed cover (3), a movable rod (7) is movably mounted in the movable groove (6), a control handle (9) is fixedly mounted on the right end of the movable rod (7) penetrating the top of the fixed cover (3), a limit block (8) is fixedly mounted on the left end of the movable rod (7), and a spring (10) is movably mounted on the outer side of the movable rod (7).

3. A construction noise reduction device according to claim 1, characterized in that: A magnetic ball (13) is movably mounted on the connecting ring (12), and the magnetic ball (13) can be adsorbed on the top of the drilling tool (5).

4. A construction noise reduction device according to claim 1, characterized in that: A slide groove (14) is provided on the inner wall of the muffler cover (4), and a slider (15) is fixedly mounted on the annular scraper (16) at a position corresponding to the slide groove (14), and the slider (15) can be movably engaged in the slide groove (14).

5. A construction noise reduction device according to claim 2, characterized in that: The top of the limit block (8) is arc-shaped.

6. A construction noise reduction device according to claim 1, characterized in that: The outer side of the annular scraper (16) contacts the inner wall of the muffler cover (4).

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