Elevator door panel noise reduction device

Abstract

The utility model discloses an elevator door panel noise reduction device, including floor door lower ridge and the floor door upper ridge of setting at floor door lower ridge top position, in using elevator door panel noise reduction device, first, the buffer shock pad is inserted into the inside of slide, then, the slide is installed in the outside of sliding block, then, the fastening nut is inserted into the inside of connecting hole through the placement groove and is connected with connecting hole through the thread, thereby making the slide installed in the outside of sliding block, when the sliding block and the slide groove rub, because the slide is made of polytetrafluoroethylene material, has very low friction coefficient, its surface is very smooth, almost does not adhere to any material, thereby can reduce the noise that the sliding block and the slide groove rub produce, and because the buffer shock pad is made of rubber material, not only can play the protection effect to the sliding block, but also can prevent the noise that the slide and the sliding block rub produce, through the cooperation of the slide and the buffer shock pad, reduce the noise that the sliding block and the slide groove, the slide rub produce.

Description

Technical Field

[0001] This utility model belongs to the technical field of elevator manufacturing and maintenance, and specifically relates to an elevator door panel noise reduction device. Background Technology

[0002] An elevator door panel noise reduction device is a device used to reduce noise generated by friction and collision of elevator door panels during operation. Its core function is to reduce the generation and propagation of noise sources through structural design or material application. This utility model elevator door panel noise reduction device is mainly composed of a first servo motor, upper door sill, mounting plate, second servo motor, slide rail, first elevator door panel, second elevator door panel, lower door sill, sound insulation cotton, sound insulation felt, sound insulation board, slider, connecting hole, buffer shock-absorbing pad, slide frame, fastening nut, placement groove and other components. Existing elevator door panel noise reduction devices will not only be damaged by long-term friction between the slider and the slide rail, but will also generate noise. Therefore, an elevator door panel noise reduction device is essential. Utility Model Content

[0003] The purpose of this utility model is to provide an elevator door panel noise reduction device to solve the problem mentioned in the background art that the existing elevator door panel noise reduction devices will not only be damaged by long-term friction between the slider and the groove, but also generate noise.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an elevator door panel noise reduction device, comprising...

[0005] The lower threshold of the landing door and the upper threshold of the landing door located above the lower threshold of the landing door;

[0006] A first servo motor and a second servo motor are respectively installed on the left and right sides of the upper sill of the landing door. A sliding groove is provided on the inner wall of the upper sill and the lower sill of the landing door. A slider is installed on the inner side of the sliding groove. A first elevator door panel and a second elevator door panel are connected to the inner side of the slider and the inner side of the upper sill and the lower sill of the landing door.

[0007] A buffer and shock-absorbing pad is installed on the outer part of the slider, a slide is installed on the outer part of the buffer and shock-absorbing pad, a placement groove is provided on the outer wall of the slide, and a connection hole is provided on the inner part of the slide, the buffer and shock-absorbing pad and the slider. A fastening nut is installed on the inner side of the connection hole and the placement groove.

[0008] The first servo motor and the second servo motor are electrically connected to an external power supply.

[0009] The combined use of the slide and the shock-absorbing pad reduces the noise generated by the friction between the slider and the slide groove and the slide. The placement groove, connecting hole, fastening nut and threaded connection enhance the convenience of installing and disassembling the slide and the shock-absorbing pad.

[0010] Preferably, sound insulation cotton is provided at the center of the interior of the first elevator door panel and the second elevator door panel. The sound insulation cotton is made of porous mineral wool material. After the sound waves enter the pores of the sound insulation cotton, they rub against the material and convert the sound energy into heat energy, thereby weakening the sound wave propagation and reducing the volume.

[0011] Preferably, a sound insulation felt is provided inside the first elevator door panel and the second elevator door panel, and at the position outside the sound insulation cotton. The sound insulation felt generally consists of three parts: a base material made of rubber, a filler made of metal powder, and additives used to enhance physical properties such as elasticity, adhesion, toughness, fire resistance, and tear resistance.

[0012] Preferably, the sound insulation felt is a high-density roll material with a certain degree of flexibility. From a microscopic perspective, its internal structure is relatively dense. The polymer network structure formed by the substrate is filled with various fillers and additives, which gives the sound insulation felt a certain weight and density, thereby effectively blocking the transmission of sound.

[0013] Preferably, a sound insulation board is provided inside the first elevator door panel and the second elevator door panel, located on the outside of the sound insulation felt. The sound insulation board is made of natural rock such as basalt as raw material, which is melted at high temperature and centrifugally blown. It has excellent sound absorption, heat insulation, fire resistance and corrosion resistance. Through the multi-layer sound insulation arrangement of the sound insulation board, sound insulation felt and sound insulation cotton, the sound insulation effect of the first elevator door panel and the second elevator door panel is enhanced and the impact of noise is reduced.

[0014] Preferably, a mounting plate is connected to the outer wall of the upper sill of the door and located inside the first servo motor and the second servo motor. A through hole is provided inside the mounting plate and located around the perimeter of the mounting plate. The through hole penetrates the mounting plate.

[0015] Preferably, an installation hole is provided inside the outer wall of the upper sill of the door, at a position corresponding to the through hole, and internal threads are provided on the inner wall of the through hole and the installation hole.

[0016] Preferably, a bolt is provided inside the through hole and the mounting hole and located on the outer side of the mounting plate. The bolt has an external thread on its outer wall. The bolt is connected to the through hole and the mounting hole by a thread. The use of the mounting plate, the through hole, the mounting hole, the bolt and the threaded connection enhances the convenience of installing and disassembling the first servo motor and the second servo motor.

[0017] Compared with the prior art, this utility model provides an elevator door panel noise reduction device, which has the following beneficial effects:

[0018] In this elevator door panel noise reduction device, when using the device, the buffer damping pad is first inserted into the inside of the slide, and then the slide is installed on the outside of the slider, so that the connecting holes inside the slide, the buffer damping pad, and the slider are aligned. Next, the fastening nut is inserted into the connecting hole through the placement groove and connected by threads, so that the slide is installed on the outside of the slider. When the slider rubs against the slide groove, the slide is made of polytetrafluoroethylene, which has an extremely low coefficient of friction and a very smooth surface that hardly adheres to any substance, thus reducing the noise generated by the friction between the slider and the slide groove. The buffer damping pad is made of rubber, which not only protects the slider but also prevents noise generated by the friction between the slide and the slider. Through the combined use of the slide and the buffer damping pad, the noise generated by the friction between the slider and the slide groove and the slide is reduced. The placement groove, connecting hole, fastening nut, and threaded connection enhance the ease of installation and disassembly of the slide and the buffer damping pad.

[0019] In this elevator door noise reduction device, sound insulation cotton, sound insulation felt, and sound insulation boards are installed inside the first and second elevator door panels. The sound insulation cotton is made of porous mineral wool. When sound waves enter the pores of the sound insulation cotton, they rub against the material, converting sound energy into heat energy, thereby weakening sound wave propagation and reducing volume. The sound insulation felt is a high-density roll material with a certain degree of flexibility. Its internal structure is relatively dense, and the polymer network structure formed by the substrate is filled with various fillers and additives, giving the sound insulation felt a certain weight and density, thus effectively blocking sound transmission. The sound insulation board is made from natural rocks such as basalt, which is melted at high temperature and centrifugally blown. It has excellent sound absorption, heat insulation, fire resistance, and corrosion resistance. Through the multi-layer sound insulation of the sound insulation board, sound insulation felt, and sound insulation cotton, the sound insulation effect of the first and second elevator door panels is enhanced, and the impact of noise is reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the elevator door panel noise reduction device of this utility model.

[0021] Figure 2 This is a structural schematic diagram of the front view of the elevator door panel noise reduction device of this utility model.

[0022] Figure 3 This is an enlarged cross-sectional schematic diagram of the elevator door panel noise reduction device of this utility model.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the slider of the elevator door panel noise reduction device of this utility model.

[0024] In the diagram: 1. First servo motor; 2. Upper sill of landing door; 3. Mounting plate; 4. Second servo motor; 5. Slide rail; 6. First elevator door panel; 7. Second elevator door panel; 8. Lower sill of landing door; 9. Sound insulation cotton; 10. Sound insulation felt; 11. Sound insulation board; 12. Sliding block; 13. Connecting hole; 14. Buffer and shock absorption pad; 15. Carriage; 16. Fastening nut; 17. Placement groove. Detailed Implementation

[0025] 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.

[0026] This utility model provides, for example Figure 1-4 The elevator door noise reduction device shown includes a lower landing sill 8 and an upper landing sill 2 positioned above the lower landing sill 8. A first servo motor 1 and a second servo motor 4 are respectively installed on the left and right sides of the upper landing sill 2. A sliding groove 5 is provided on the inner wall of the upper landing sill 2 and the lower landing sill 8. A slider 12 is installed on the inner side of the sliding groove 5. A first elevator door panel 6 and a second elevator door panel 7 are connected to the inner side of the slider 12, located on the inner side of the upper landing sill 2 and the lower landing sill 8. A buffer and shock-absorbing pad 14 is installed on the outer side of the slider 12. The slide 15 is equipped with a placement groove 17 on its outer wall. The slide 15, the buffer damping pad 14, and the slider 12 are provided with connection holes 13. Fastening nuts 16 are installed on the inner side of the connection holes 13 and the placement groove 17. The first servo motor 1 and the second servo motor 4 are electrically connected to an external power supply. The cooperation of the slide 15 and the buffer damping pad 14 reduces the noise generated by the friction between the slider 12 and the slide groove 5 and the slide 15. The placement groove 17, the connection hole 13, the fastening nut 16 and the threaded connection enhance the convenience of installing and disassembling the slide 15 and the buffer damping pad 14.

[0027] like Figure 1 , Figure 2 and Figure 4As shown, in order to reduce the noise generated by the friction between the slider 12 and the slide groove 5 and the slide 15, when using the elevator door panel noise reduction device, first insert the buffer damping pad 14 into the inside of the slide 15, and then install the slide 15 on the outside of the slider 12, so that the slide 15, the buffer damping pad 14 and the connecting hole 13 inside the slider 12 are aligned. Then, insert the fastening nut 16 into the connecting hole 13 through the placement groove 17 and connect it to the connecting hole 13 by thread, so that the slide 15 is installed on the outside of the slider 12. When the slider 12 rubs against the slide groove 5, since the slide 15 is made of polytetrafluoroethylene material, it has extremely high noise reduction properties. The low coefficient of friction and its very smooth surface, which hardly adheres to any substance, reduce the noise generated by the friction between the slider 12 and the groove 5. Furthermore, since the buffer damping pad 14 is made of rubber, it not only protects the slider 12 but also prevents the noise generated by the friction between the carriage 15 and the slider 12. Through the combined use of the carriage 15 and the buffer damping pad 14, the noise generated by the friction between the slider 12 and the groove 5 and the carriage 15 is reduced. The placement groove 17, the connecting hole 13, the fastening nut 16, and the threaded connection enhance the ease of installation and disassembly of the carriage 15 and the buffer damping pad 14.

[0028] Sound insulation cotton 9 is installed at the center of the interior of the first elevator door panel 6 and the second elevator door panel 7. The sound insulation cotton 9 is made of porous mineral wool. When sound waves enter the pores of the sound insulation cotton 9, they rub against the material, converting sound energy into heat energy, thereby weakening sound wave propagation and reducing volume. Sound insulation felt 10 is installed inside the first elevator door panel 6 and the second elevator door panel 7, located outside the sound insulation cotton 9. The sound insulation felt 10 generally consists of three parts: a base material made of rubber, a filler made of metal powder, and additives to enhance physical properties such as elasticity, adhesion, toughness, fire resistance, and tear resistance. The sound insulation felt 10 is a high-density roll material with a certain degree of flexibility. From a visual perspective, its internal structure is relatively dense. The polymer network structure formed by the substrate is filled with various fillers and additives, giving the sound insulation felt 10 a certain weight and density, thus effectively blocking sound transmission. Sound insulation panels 11 are installed inside the first elevator door panel 6 and the second elevator door panel 7, located on the outside of the sound insulation felt 10. The sound insulation panels 11 are made from natural rocks such as basalt, which are melted at high temperature and centrifugally blown. They have excellent sound absorption, heat insulation, fire resistance, and corrosion resistance. Through the multi-layer sound insulation of the sound insulation panels 11, the sound insulation felt 10, and the sound insulation cotton 9, the sound insulation effect of the first elevator door panel 6 and the second elevator door panel 7 is enhanced, and the impact of noise is reduced.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, to enhance the sound insulation of the first elevator door panel 6 and the second elevator door panel 7 and reduce noise impact, sound insulation cotton 9, sound insulation felt 10, and sound insulation board 11 are installed inside the first elevator door panel 6 and the second elevator door panel 7 when using the elevator door panel noise reduction device. The sound insulation cotton 9 is made of porous mineral wool material. After sound waves enter the pores of the sound insulation cotton 9, they rub against the material and convert sound energy into heat energy, thereby weakening the propagation of sound waves and reducing the volume. The sound insulation felt 10 is a high-density roll material with a certain degree of flexibility. The internal structure is relatively dense. The polymer network structure formed by the substrate is filled with various fillers and additives, which gives the sound insulation felt 10 a certain weight and density, thus effectively blocking the transmission of sound. The sound insulation board 11 is made of natural rocks such as basalt as raw materials, which are melted at high temperature and centrifugally blown. It has excellent sound absorption, heat insulation, fire resistance and corrosion resistance. Through the multi-layer sound insulation of the sound insulation board 11, the sound insulation felt 10 and the sound insulation cotton 9, the sound insulation effect of the first elevator door panel 6 and the second elevator door panel 7 is enhanced, and the impact of noise is reduced.

[0030] A mounting plate 3 is connected to the outer wall of the upper door sill 2, located inside the first servo motor 1 and the second servo motor 4. A through hole is provided inside the mounting plate 3 and around its perimeter. The through hole penetrates the mounting plate 3. A mounting hole is provided inside the outer wall of the upper door sill 2, corresponding to the through hole. Internal threads are provided on the inner walls of the through hole and the mounting hole. Bolts are provided inside the through hole and the mounting hole, located outside the mounting plate 3. External threads are provided on the outer walls of the bolts. The bolts are connected to the through hole and the mounting hole by threads. The use of the mounting plate 3, through hole, mounting hole, bolt and thread connection enhances the ease of installation and disassembly of the first servo motor 1 and the second servo motor 4.

[0031] like Figure 1 and Figure 2 As shown, to enhance the ease of installation and disassembly of the first servo motor 1 and the second servo motor 4, when using the elevator door noise reduction device, firstly connect the first servo motor 1 and the second servo motor 4 to the mounting plate 3. Then, place the first servo motor 1 and the second servo motor 4 on the left and right sides of the landing door sill 2 through the mounting plate 3, aligning the through holes inside the mounting plate 3 with the mounting holes on the left and right walls of the landing door sill 2. Next, insert bolts into the through holes and mounting holes, connecting the bolts through the external threads on the outer wall and the internal threads on the inner walls of the through holes and mounting holes. This allows the first servo motor 1 and the second servo motor 4 to be installed on the left and right sides of the landing door sill 2. The combined use of the mounting plate 3, through holes, mounting holes, bolts, and threaded connections enhances the ease of installation and disassembly of the first servo motor 1 and the second servo motor 4.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A noise reduction device for elevator door panels, characterized in that: include The lower threshold (8) and the upper threshold (2) located above the lower threshold (8); A first servo motor (1) and a second servo motor (4) are respectively installed on the left and right sides of the upper sill (2) of the landing door. A sliding groove (5) is provided on the inner wall of the upper sill (2) and the lower sill (8) of the landing door. A slider (12) is installed on the inner side of the sliding groove (5). A first elevator door panel (6) and a second elevator door panel (7) are connected to the inner side of the slider (12) and the inner side of the upper sill (2) and the lower sill (8) of the landing door. A buffer damping pad (14) is installed on the outer side of the slider (12), a slide (15) is installed on the outer side of the buffer damping pad (14), a placement groove (17) is provided on the outer wall of the slide (15), a connecting hole (13) is provided on the inner side of the slide (15), the buffer damping pad (14) and the slider (12), and a fastening nut (16) is installed on the inner side of the connecting hole (13) and the placement groove (17). The first servo motor (1) and the second servo motor (4) are electrically connected to an external power supply; The combined use of the slide (15) and the shock-absorbing pad (14) reduces the noise generated by the friction between the slider (12) and the slide (5) and the slide (15). The placement groove (17), the connecting hole (13), the fastening nut (16) and the threaded connection enhance the ease of installation and disassembly of the slide (15) and the shock-absorbing pad (14).

2. The elevator door panel noise reduction device according to claim 1, characterized in that: Sound insulation cotton (9) is provided at the center of the interior of the first elevator door panel (6) and the second elevator door panel (7). The sound insulation cotton (9) is made of porous mineral wool material. After the sound wave enters the pores of the sound insulation cotton (9), it generates friction with the material and converts the sound energy into heat energy, thereby weakening the sound wave propagation and reducing the volume.

3. The elevator door panel noise reduction device according to claim 2, characterized in that: Sound insulation felt (10) is provided inside the first elevator door panel (6) and the second elevator door panel (7) and on the outside of the sound insulation cotton (9). The sound insulation felt (10) generally consists of three parts: the base material is made of rubber, the filler is made of metal powder, and the additives are used to enhance the physical properties such as elasticity, adhesion, toughness, fire resistance and tear resistance.

4. The elevator door panel noise reduction device according to claim 3, characterized in that: The sound insulation felt (10) is a high-density roll material with a certain degree of flexibility. From a microscopic perspective, its internal structure is relatively dense. The polymer network structure formed by the substrate is filled with various fillers and additives, which makes the sound insulation felt (10) have a certain weight and density, thereby effectively blocking the transmission of sound.

5. The elevator door panel noise reduction device according to claim 3, characterized in that: A sound insulation board (11) is provided inside the first elevator door panel (6) and the second elevator door panel (7) and on the outside of the sound insulation felt (10). The sound insulation board (11) is made of natural rock such as basalt as raw material, and is made by high temperature melting and centrifugal blowing. It has excellent sound absorption, heat insulation, fire prevention and corrosion resistance. Through the multi-layer sound insulation of the sound insulation board (11), the sound insulation felt (10) and the sound insulation cotton (9), the sound insulation effect of the first elevator door panel (6) and the second elevator door panel (7) is enhanced and the impact of noise is reduced.

6. The elevator door panel noise reduction device according to claim 1, characterized in that: An installation plate (3) is connected to the outer wall of the upper door sill (2) and inside the first servo motor (1) and the second servo motor (4). A through hole is provided inside the installation plate (3) and around the installation plate (3). The through hole penetrates the installation plate (3).

7. The elevator door panel noise reduction device according to claim 6, characterized in that: An installation hole is provided inside the outer wall of the upper sill (2) of the door and at the position corresponding to the through hole. An internal thread is provided at the inner wall position of the through hole and the installation hole.

8. The elevator door panel noise reduction device according to claim 7, characterized in that: Bolts are provided inside the through holes and mounting holes and at the outer position of the mounting plate (3). External threads are provided on the outer wall of the bolts. The bolts are connected to the through holes and mounting holes by threads. The use of the mounting plate (3), through holes, mounting holes, bolts and threaded connections enhances the ease of installation and disassembly of the first servo motor (1) and the second servo motor (4).

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