Mute structure of constructional engineering elevator shaft

Abstract

The invention discloses a construction engineering elevator shaft silencing structure, and relates to the technical field of elevator shaft silencing. The constructional engineering elevator shaft mute structure comprises a concrete bottom plate, three vertically-installed concrete heat preservation sandwich plates are fixedly installed on the concrete bottom plate, the three concrete heat preservation sandwich plates form a U shape, and a concrete top plate is fixedly installed at the top ends of the three concrete heat preservation sandwich plates; wherein a concrete cross beam is fixedly installed between the two concrete heat preservation sandwich plates, a concrete frame is fixedly installed on the concrete cross beam, a prefabricated opening is formed in the concrete frame, the concrete frame is used for being installed on an elevator door through the prefabricated opening, and the concrete heat preservation sandwich plates are provided with sound insulation assemblies. And noise in the elevator shaft is reduced through the sound insulation assembly. Through cooperative use of the sound insulation assembly, the vibration reduction assembly and the silencing assembly, the noise level in the elevator shaft is effectively reduced, the living and using comfort of a building is improved, and meanwhile vibration and airflow noise caused by elevator operation are effectively controlled.

Description

Technical Field

[0001] The invention relates to the technical field of elevator shaft silencing, in particular to a construction engineering elevator shaft silencing structure. Background Art

[0002] The elevator shaft is the hoistway where the elevator is installed. It is a vertical passage or space specially designed for the installation of elevators, mainly used for the up and down movement of elevators.

[0003] The elevator in the elevator shaft will generate a lot of noise when it is working. In order to reduce the noise value, noise reduction measures such as fixed sound insulation cotton are usually taken inside the shaft, but the elevator resonance noise, exhaust air flow whistling, and shaft vibration echo will still have an impact on people's lives. In particular, the elevator shaft is usually connected to the bedroom at night, and the elevator operation noise is very obvious, which directly affects people's daily rest.

[0004] Therefore, the present invention proposes a silent structure for an elevator shaft in a construction project to solve the above-mentioned problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a silent structure for an elevator shaft in a construction project, which solves the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A silent structure for an elevator shaft in a construction project, comprising a concrete bottom plate, three vertically mounted concrete heat-insulating sandwich plates are fixedly mounted on the concrete bottom plate, the three concrete heat-insulating sandwich plates form a U-shape, a concrete top plate is fixedly mounted on the tops of the three concrete heat-insulating sandwich plates, a concrete crossbeam is fixedly mounted between two concrete heat-insulating sandwich plates, a concrete frame is fixedly mounted on the concrete crossbeam, a prefabricated opening is provided on the concrete frame, and the prefabricated opening is used for mounting on an elevator door; The concrete thermal insulation sandwich panel is provided with a sound insulation component, and the noise inside the elevator shaft is reduced by the sound insulation component; The concrete bottom plate and the concrete top plate are both provided with vibration reduction components, which can absorb the collision sound generated between the elevator and the concrete bottom plate and the concrete top plate; An exhaust port is provided on the concrete top plate, and a silencer component is provided inside the exhaust port to reduce the noise generated when the exhaust port is exhausted.

[0007] Preferably, the sound insulation component includes an installation groove arranged on the concrete insulation sandwich panel, and a first sound insulation board and a second sound insulation board are fixedly installed inside the installation groove, and honeycomb sound absorption holes are opened on the first sound insulation board and the second sound insulation board, and sound-absorbing cotton is fixedly installed between the first sound insulation board and the second sound insulation board.

[0008] Preferably, a plurality of irregular porous sound-absorbing blocks are fixedly mounted on the inner side surface of the mounting groove, and the sound-absorbing holes on the first sound-absorbing plate and the sound-absorbing holes on the second sound-absorbing plate are arranged alternately.

[0009] Preferably, the vibration reduction assembly includes a damping cylinder body fixedly mounted on a concrete top plate and a concrete bottom plate, a mounting plate being provided on the outer side of the damping cylinder body, a damping rod being fixedly mounted on the output end of the damping cylinder body, a contact plate being fixedly mounted on the end of the damping rod away from the damping cylinder body, and a vibration reduction plate being fixedly mounted on the contact plate.

[0010] Preferably, a damping spring is fixedly mounted on the mounting plate, one end of the damping spring away from the mounting plate is fixedly connected to the contact plate, the damping spring is located outside the damping cylinder, and buffer pads are provided between the concrete top plate, the concrete bottom plate and the contact plate.

[0011] Preferably, the outer side surface of the damping cylinder body is set as an adjusting thread, and an adjusting nut is movably installed on the adjusting thread. The adjusting nut is located below the mounting plate, and the adjusting nut is rotatably connected to the mounting plate. A limiting hole is opened on the mounting plate, and a limiting rod is slidably connected inside the limiting hole, and one end of the limiting rod is fixedly mounted on the concrete base plate.

[0012] Preferably, the silencer assembly includes a cylindrical block arranged in the exhaust port, the cylindrical block is provided with a first air port and a second air port, a silencer cavity is arranged inside the cylindrical block, a first annular frame and a second annular frame are fixedly installed inside the silencer cavity, the first annular frame is located inside the second annular frame, and silencer cotton is fixedly installed between the first annular frame and the second annular frame.

[0013] Preferably, a plurality of fixing rods are fixedly installed inside the silencing chamber and outside the second annular frame, and a porous disc is fixedly installed on the fixing rods.

[0014] Preferably, there are multiple porous discs, and there are three porous discs on one fixing rod.

[0015] Preferably, the first air outlet is located at the exact center of the end surface of the cylindrical block, and the second air outlet is located at the outer side of the center of the end surface of the cylindrical block.

[0016] The present invention provides a silent structure for an elevator shaft in a construction project. Compared with the prior art, it has the following beneficial effects: 1. In the present invention, when noise is generated in the elevator shaft, the noise will first be silenced through the sound-absorbing holes on the first sound insulation board, and the noise that has been partially silenced will be again silenced by the sound-absorbing cotton, thereby completing the initial silencer. After passing through the sound-absorbing cotton, the noise will be silenced again through the sound-absorbing holes on the second sound insulation board, thereby completing the secondary silencer. The remaining noise will be inside the installation groove, and then the porous sound-absorbing block will be used for the final silencer to achieve a better sound insulation effect. 2. In the present invention, when the elevator is lifted or lowered in the elevator shaft, the elevator will contact the concrete top plate and the concrete bottom plate in the elevator shaft. The vibration force generated during the contact will act on the vibration damping plate. The force acting on the vibration damping plate will directly act on the damping rod and the damping spring. Then, the damping cylinder and the damping spring are used in combination to buffer and weaken the vibration force. When the vibration force generated is large and the damping spring and the damping cylinder are unable to weaken the vibration force, the elastic force of the damping spring is adjusted by rotating the adjusting nut and using the adjusting nut in combination with the adjusting thread on the damping cylinder. By adjusting the elastic force of the damping spring, the shock absorption capacity of the vibration damping assembly can be improved, the impact can be better absorbed, and the abnormal noise of the elevator caused by the vibration force can be effectively avoided. 3. In the present invention, when the airflow in the elevator shaft is discharged through the exhaust port, the airflow will first enter the first annular frame through the first air port, and the airflow in the first annular frame will first pass through the silencer cotton and the second annular frame, and the silencer cotton will be used to reduce the noise generated by the airflow. After the reduction, the noise will pass through the porous disc on the fixed rod again, and the holes on the porous disc can be used to disperse the airflow to slow down the speed of the airflow. When the speed of the airflow is slowed down, the noise generated by the impact of the airflow is reduced.

[0017] 4. The present invention effectively reduces the noise level in the elevator shaft through the coordinated use of silencer components, vibration reduction components and silencer components, improves the living and use comfort of the building, and effectively controls the vibration and airflow noise caused by the operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the concrete bottom plate in the present invention; Figure 3 It is a structural schematic diagram of the concrete top plate of the present invention; Figure 4 The structure of the vibration reduction assembly in the present invention is schematically shown in FIG. Figure 1 ; Figure 5 The structure of the vibration reduction assembly in the present invention is schematically shown in FIG. Figure 2 ; Figure 6is a schematic structural diagram of the first sound insulation board in the present invention; Figure 7 It is a schematic diagram of the structure of the sound insulation component in the present invention; Figure 8 It is a schematic diagram of the structure of the porous sound-absorbing block in the present invention; Fig. 9 is a schematic structural diagram of the second sound insulation board in the present invention; Fig.10 It is a schematic diagram of the internal structure of the cylindrical block in the present invention.

[0019] In the figure: 1. concrete bottom plate; 2. concrete thermal insulation sandwich plate; 3. concrete top plate; 4. concrete beam; 5. concrete frame; 6. prefabricated port; 7. exhaust port; 8. mounting groove; 9. first sound insulation board; 10. second sound insulation board; 11. sound absorption hole; 12. sound absorbing cotton; 13. porous sound absorbing block; 14. damping cylinder; 15. mounting plate; 16. damping rod; 17. contact plate; 18. vibration reduction plate; 19. damping spring; 20. adjusting thread; 21. adjusting nut; 22. limiting hole; 23. limiting rod; 24. cylindrical block; 25. first air outlet; 26. second air outlet; 27. silencer cavity; 28. first annular frame; 29. ​​second annular frame; 30. silencer cotton; 31. fixing rod; 32. porous disc; 33. buffer pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: See also Figure 1-10 The present invention is a silent structure for a building engineering elevator shaft, comprising a concrete bottom plate 1, on which three vertically mounted concrete heat-insulating sandwich plates 2 are fixedly mounted, the three concrete heat-insulating sandwich plates 2 form a U shape, a concrete top plate 3 is fixedly mounted on the top of the three concrete heat-insulating sandwich plates 2, a concrete crossbeam 4 is fixedly mounted between two concrete heat-insulating sandwich plates 2, a concrete frame 5 is fixedly mounted on the concrete crossbeam 4, a prefabricated opening 6 is provided on the concrete frame 5, and the prefabricated opening 6 is used for mounting on an elevator door; The concrete thermal insulation sandwich panel 2 is provided with a sound insulation component, and the noise inside the elevator shaft is reduced by the sound insulation component. The sound insulation component includes a mounting groove 8 arranged on the concrete thermal insulation sandwich panel 2, and a first sound insulation board 9 and a second sound insulation board 10 are fixedly installed inside the mounting groove 8. Honeycomb sound absorption holes 11 are opened on the first sound insulation board 9 and the second sound insulation board 10, and sound-absorbing cotton 12 is fixedly installed between the first sound insulation board 9 and the second sound insulation board 10; a plurality of irregular porous sound-absorbing blocks 13 are fixedly installed on the inner side of the mounting groove 8, and the sound absorption holes 11 on the first sound insulation board 9 and the sound absorption holes 11 on the second sound insulation board 10 are arranged alternately.

[0022] In this article, when noise is generated in the elevator shaft, the noise will first be silenced through the sound-absorbing holes 11 on the first sound insulation board 9, and the noise that has been partially silenced will be again silenced by the sound-absorbing cotton 12, thereby completing the initial silencer. After passing through the sound-absorbing cotton 12, the noise will be silenced again through the sound-absorbing holes 11 on the second sound insulation board 10, thereby completing the secondary silencer. The remaining noise will be inside the installation groove 8, and then the final silencer treatment will be performed through the porous sound-absorbing block 13 to achieve a better sound insulation effect.

[0023] The concrete bottom plate 1 and the concrete top plate 3 are both provided with a vibration reduction assembly, which can absorb the collision sound generated between the elevator and the concrete bottom plate 1 and the concrete top plate 3. The vibration reduction assembly includes a damping cylinder 14 fixedly mounted on the concrete top plate 3 and the concrete bottom plate 1, and a mounting plate 15 is arranged on the outer side of the damping cylinder 14. A damping rod 16 is fixedly mounted on the output end of the damping cylinder 14, and a contact plate 17 is fixedly mounted on the end of the damping rod 16 away from the damping cylinder 14, and a vibration reduction plate 18 is fixedly mounted on the contact plate 17. A damping spring 19 is fixedly mounted on the mounting plate 15, and one end of the damping spring 19 away from the mounting plate 15 is fixedly connected to the contact plate 17. The position of the damping spring 19 is fixedly mounted on the mounting plate 15. It is located on the outside of the damping cylinder body 14, and a buffer pad 33 is arranged between the concrete top plate 3, the concrete bottom plate 1 and the contact plate 17. The outer side surface of the damping cylinder body 14 is arranged as an adjusting thread 20, and an adjusting nut 21 is movably installed on the adjusting thread 20. The adjusting nut 21 is located below the mounting plate 15, and the adjusting nut 21 is rotatably connected to the mounting plate 15. A limiting hole 22 is arranged on the mounting plate 15, and a limiting rod 23 is slidably connected inside the limiting hole 22. One end of the limiting rod 23 is fixedly mounted on the concrete bottom plate 1, wherein the vibration reduction plate 18 is not in contact with the concrete bottom plate 1 and the concrete top plate 3 respectively, so as to ensure that the damping rod 16 and the damping spring 19 can effectively achieve the visual vibration reduction effect.

[0024] In this article, when the elevator is rising and falling in the elevator shaft, the elevator will contact the concrete top plate 3 and the concrete bottom plate 1 in the elevator shaft. The vibration force generated during the contact will act on the vibration damping plate 18, and the force acting on the vibration damping plate 18 will directly act on the damping rod 16 and the damping spring 19. Then, the damping cylinder 14 and the damping spring 19 are used in combination to buffer and weaken the vibration force. When the generated vibration force is large and the damping spring 19 and the damping cylinder 14 cannot weaken the vibration force, the elastic force of the damping spring 19 is adjusted by rotating the adjusting nut 21 and using the adjusting nut 21 in combination with the adjusting thread 20 on the damping cylinder 14. By adjusting the elastic force of the damping spring 19, the shock absorption capacity of the vibration damping assembly can be improved, the impact can be better absorbed, and the abnormal noise of the elevator caused by the vibration force can be effectively avoided.

[0025] An exhaust port 7 is provided on the concrete top plate 3, and a silencer assembly is provided inside the exhaust port 7 to reduce the noise generated when the exhaust port 7 is exhausted. The silencer assembly includes a cylindrical block 24 provided inside the exhaust port 7, and a first air port 25 and a second air port 26 are provided on the cylindrical block 24. A silencer cavity 27 is provided inside the cylindrical block 24, and a first annular frame 28 and a second annular frame 29 are fixedly installed inside the silencer cavity 27. The first annular frame 28 is located inside the second annular frame 29, and a silencer cotton 30 is fixedly installed between the first annular frame 28 and the second annular frame 29. The silencer cavity 27 is provided with a first ring frame 28 and a second ring frame 29. A plurality of fixing rods 31 are fixedly installed inside and outside the second annular frame 29, and a porous disc 32 is fixedly installed on the fixing rods 31. The number of the porous discs 32 is multiple, and there are three porous discs 32 on one fixing rod 31, to ensure the silencing effect of the porous bottom film 32, the position of the first air outlet 25 is at the center of the end face of the cylindrical block 24, and the position of the second air outlet 26 is at the outer side of the center of the end face of the cylindrical block 24, wherein the diameter of the first annular frame 28 is smaller than the diameter of the second annular frame 29, to ensure that the silencing cotton 30 can be installed between the first annular frame 28 and the second annular frame 29.

[0026] Herein, when the airflow in the elevator shaft is discharged through the exhaust port 7, the airflow will first enter the first annular frame 28 through the first air port 25, and the airflow in the first annular frame 28 will first pass through the silencer cotton 30 and the second annular frame 29. The silencer cotton 30 is used to reduce the noise generated by the airflow. After the noise is reduced, it will pass through the porous disc 32 on the fixing rod 31 again. The holes on the porous disc 32 can disperse the airflow to slow down the speed of the airflow. When the speed of the airflow is slowed down, the noise generated by the impact of the airflow is reduced.

[0027] Working principle: When in use, when noise is generated in the elevator shaft, the noise will first be silenced through the sound-absorbing holes 11 on the first sound insulation board 9, and the noise that has been partially silenced will be again silenced by the sound-absorbing cotton 12, thereby completing the initial silencer. After passing through the sound-absorbing cotton 12, the noise will be silenced again through the sound-absorbing holes 11 on the second sound insulation board 10, thereby completing the secondary silencer. The remaining noise will be inside the installation groove 8, and then be finally silenced by the porous sound-absorbing block 13, so as to achieve a better sound insulation effect; When the elevator is lifted or lowered in the elevator shaft, the elevator will contact the concrete top plate 3 and the concrete bottom plate 1 in the elevator shaft. The vibration force generated during the contact will act on the vibration damping plate 18. The force acting on the vibration damping plate 18 will directly act on the damping rod 16 and the damping spring 19. Then, the damping cylinder 14 and the damping spring 19 are used in combination to buffer and weaken the vibration force. When the vibration force generated is large and the damping spring 19 and the damping cylinder 14 cannot weaken the vibration force, the elastic force of the damping spring 19 is adjusted by rotating the adjusting nut 21 and using the adjusting nut 21 in combination with the adjusting thread 20 on the damping cylinder 14, as well as the mounting plate 15 and the contact plate 17. By adjusting the elastic force of the damping spring 19, the shock absorption capacity of the vibration damping assembly can be improved, the impact can be better absorbed, and the abnormal noise of the elevator caused by the vibration force can be effectively avoided. When the airflow in the elevator shaft is discharged through the exhaust port 7, the airflow will first enter the first annular frame 28 through the first air port 25. The airflow in the first annular frame 28 will first pass through the silencer cotton 30 and the second annular frame 29. The silencer cotton 30 is used to reduce the noise generated by the airflow. After the noise is reduced, it will pass through the porous disc 32 on the fixing rod 31 again. The holes on the porous disc 32 can disperse the airflow to slow down the speed of the airflow. When the speed of the airflow is slowed down, the noise generated by the impact of the airflow is reduced.

[0028] In the present technical solution, the elastic force of the damping spring 19 can be adjusted when the entire device is installed.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A silent structure for an elevator shaft in a construction project, comprising a concrete bottom plate (1), characterized in that: Three vertically mounted concrete thermal insulation sandwich panels (2) are fixedly mounted on the concrete bottom plate (1), the three concrete thermal insulation sandwich panels (2) form a U shape, a concrete top plate (3) is fixedly mounted on the top ends of the three concrete thermal insulation sandwich panels (2), a concrete cross beam (4) is fixedly mounted between two concrete thermal insulation sandwich panels (2), a concrete frame (5) is fixedly mounted on the concrete cross beam (4), a prefabricated opening (6) is provided on the concrete frame (5), and the prefabricated opening (6) is used for mounting on an elevator door; The concrete thermal insulation sandwich panel (2) is provided with a sound insulation component, and the noise inside the elevator shaft is reduced by the sound insulation component; The concrete bottom plate (1) and the concrete top plate (3) are both provided with vibration reduction components, and the vibration reduction components can absorb the collision sound generated between the elevator and the concrete bottom plate (1) and the concrete top plate (3); An air outlet (7) is provided on the concrete top plate (3), and a silencer component is provided inside the air outlet (7) to reduce the noise generated when the air outlet (7) is exhausted.

2. A silent structure for elevator shaft in construction engineering according to claim 1, characterized in that: The sound insulation component comprises a mounting groove (8) arranged on the concrete heat insulation sandwich plate (2), a first sound insulation board (9) and a second sound insulation board (10) are fixedly installed inside the mounting groove (8), the first sound insulation board (9) and the second sound insulation board (10) are both provided with honeycomb-shaped sound absorption holes (11), and sound absorption cotton (12) is fixedly installed between the first sound insulation board (9) and the second sound insulation board (10).

3. A silent structure for elevator shaft in construction engineering according to claim 2, characterized in that: A plurality of irregular multi-porous sound-absorbing blocks (13) are fixedly mounted on the inner side surface of the mounting groove (8), and the sound-absorbing holes (11) on the first sound-isolating plate (9) and the sound-absorbing holes (11) on the second sound-isolating plate (10) are arranged in a staggered manner.

4. The elevator shaft silent structure for construction engineering according to claim 1, characterized in that: The vibration reduction assembly comprises a damping cylinder (14) fixedly mounted on a concrete top plate (3) and a concrete bottom plate (1); a mounting plate (15) is provided on the outer side surface of the damping cylinder (14); a damping rod (16) is fixedly mounted on the output end of the damping cylinder (14); a contact plate (17) is fixedly mounted on one end of the damping rod (16) away from the damping cylinder (14); and a vibration reduction plate (18) is fixedly mounted on the contact plate (17).

5. The construction engineering elevator shaft silent structure according to claim 4, characterized in that: A damping spring (19) is fixedly mounted on the mounting plate (15); one end of the damping spring (19) away from the mounting plate (15) is fixedly connected to the contact plate (17); the damping spring (19) is located outside the damping cylinder (14); and a buffer pad (33) is provided between the concrete top plate (3), the concrete bottom plate (1) and the contact plate (17).

6. A silent structure for elevator shaft in construction engineering according to claim 5, characterized in that: The outer side surface of the damping cylinder body (14) is provided with an adjusting thread (20), an adjusting nut (21) is movably mounted on the adjusting thread (20), the adjusting nut (21) is located below the mounting plate (15), and the adjusting nut (21) is rotatably connected to the mounting plate (15), a limiting hole (22) is provided on the mounting plate (15), the limiting hole (22) is internally slidably connected to a limiting rod (23), and one end of the limiting rod (23) is fixedly mounted on the concrete bottom plate (1).

7. The silent structure of an elevator shaft in a construction project according to claim 1, characterized in that: The silencer assembly comprises a cylindrical block (24) arranged in an air outlet (7), a first air outlet (25) and a second air outlet (26) being provided on the cylindrical block (24), a silencer cavity (27) being arranged inside the cylindrical block (24), a first annular frame (28) and a second annular frame (29) being fixedly installed inside the silencer cavity (27), the first annular frame (28) being located inside the second annular frame (29), and silencer cotton (30) being fixedly installed between the first annular frame (28) and the second annular frame (29).

8. The silent structure of an elevator shaft for a construction project according to claim 7, characterized in that: A plurality of fixing rods (31) are fixedly mounted inside the muffler cavity (27) and outside the second annular frame (29), and a porous disc (32) is fixedly mounted on the fixing rods (31).

9. A silent structure for elevator shaft in construction engineering according to claim 8, characterized in that: The number of the porous discs (32) is plural, and the number of the porous discs (32) on one fixing rod (31) is three.

10. The elevator shaft silent structure for construction engineering according to claim 7, characterized in that: The first air outlet (25) is located at the exact center of the end surface of the cylindrical block (24), and the second air outlet (26) is located at an outer side of the center of the end surface of the cylindrical block (24).

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