Noise inspection device for low-noise elevator structure

Abstract

The invention belongs to the technical field of noise detection, and discloses a noise detection device for a low-noise elevator structure, which comprises a noisemeter shell, a condenser microphone sensor is fixedly mounted at the top end of the noisemeter shell, a sponge ball sleeves the outer side of the condenser microphone sensor, a notch is formed in the middle of the back of the noisemeter shell, and the noisemeter shell is fixedly mounted in the noisemeter shell. A hidden extension mechanism is installed at the position, located in the notch, of the back face of the noisemeter shell. The hidden extension mechanism comprises a first concave frame fixedly installed on the back face of the noisemeter shell, the angle of the noisemeter shell can be flexibly adjusted, the constraint of height limitation of operators is eliminated, noise sources at different positions and at different heights can be detected more conveniently, the detection accuracy and efficiency are improved, and the cost is reduced. The problem that a traditional noisemeter is limited by the fixed angle and height is solved, and the noisemeter is installed in a hidden mode and can be placed in a hidden mode when not in use, so that the occupied area is reduced, and the noisemeter shell is more convenient to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of noise detection, and in particular relates to a noise detection device of a low-noise elevator structure. Background Art

[0002] Modern urban life cannot do without elevators. However, the noise generated during the operation of elevators has become a problem that troubles residents. The noise from high-speed running parts, the impact of opening and closing doors, the friction of the transmission system, etc. not only affects the riding comfort of passengers, but also causes psychological stress, hearing damage and even heart disease if exposed to high-decibel noise for a long time. More seriously, the elevator noise will disturb the quiet life of residents, affect the quality of sleep, and reduce the comfort of the living environment.

[0003] Traditional elevator noise inspection methods mainly rely on manual listening, which has the disadvantages of strong subjectivity and lack of scientificity. With the advancement of science and technology, people's pursuit of daily life quality continues to improve, and the requirements for elevator noise control are also getting higher and higher;

[0004] For this purpose, a noise meter is needed to detect the noise. However, when the noise at the top of the elevator needs to be detected, the height of the operator's hand and the noise meter as a whole cannot touch the top of the elevator, resulting in the noise meter affecting the detection effect due to the height limit of the operator. Summary of the invention

[0005] The present invention aims at the problem that when it is necessary to detect the noise at the top of the elevator in the prior art, the height of the operator's hand and the noise meter as a whole cannot touch the top of the elevator, resulting in the noise meter affecting the detection effect due to the height limit of the operator. The present invention proposes the following technical solution:

[0006] A noise inspection device for a low-noise elevator structure, comprising: a noise meter housing, a capacitive microphone sensor is fixedly mounted on the top of the noise meter housing, a sponge ball is sleeved on the outer side of the capacitive microphone sensor, a notch is opened in the middle of the back of the noise meter housing, and a hidden extension mechanism is installed at the back of the noise meter housing at the inner position of the notch;

[0007] The hidden extension mechanism includes a concave frame 1 fixedly installed on the back of the noise meter housing, the bottom end of the inner wall of the concave frame 1 is rotatably connected to the concave frame 2, the top end of the inner wall of the concave frame 2 is rotatably connected to the concave frame 3, the bottom end of the inner wall of the concave frame 3 is rotatably connected to the concave frame 4, the top end of the inner wall of the concave frame 4 is rotatably connected to a support rod, a suction cup is symmetrically fixedly installed on one end surface of the support rod, and a plurality of tilt rods are movably connected to the bottom end of the support rod.

[0008] Preferably, as the above technical solution, a screw rod is penetrated and connected inside the bottom end of the first concave frame, the top end of the second concave frame, the bottom end of the third concave frame, and the top end of the fourth concave frame. A nut is threadedly connected to the outside of the screw rod. The second concave frame, the third concave frame, the fourth concave frame, and the support rod are all rotatably connected to the outside of the screw rod.

[0009] Preferably, as the above technical solution, a storage groove is symmetrically and movably connected to one end face of the support rod. A movable rod is movably connected inside the storage groove. A piston column is symmetrically embedded and installed at one end face of the movable rod. A suction cup is installed at a position on one side of the storage groove at the other end of the support rod.

[0010] Preferably, as the above technical solution, the storage groove is composed of two T-shaped holes and a connecting groove. The piston column is movably connected inside the T-shaped hole. A plurality of baffles are slidably connected inside the support rod. A manual telescopic rod is symmetrically embedded and installed at one end face of one of the baffles. The manual telescopic rod and the support rod are fixedly connected.

[0011] Preferably, as the above technical solution, a bolt is movably connected inside the support rod. A moving column is threadedly connected to the outside of the bolt. A rectangular rod is slidably connected inside the moving column. A positioning rod is fixedly installed at the bottom end of the rectangular rod. The positioning rod is fixedly installed at the bottom end of the support rod.

[0012] Preferably, as the above technical solution, the moving column is welded by a cylinder and a sawtooth rack. The number ratio of the cylinder to the sawtooth rack is one to four.

[0013] Preferably, as the above technical solution, a gear is meshed and connected to the outside of the moving column. The inclined rod is fixedly connected to the outside of the gear.

[0014] Preferably, as the above technical solution, one end face of the inclined rod and the outside of the positioning rod are mutually attached. A column is fixedly connected inside the gear. The column is rotatably connected inside the support rod.

[0015] Preferably, as the above technical solution, a barrier block is symmetrically welded to one end face of the nut. The number ratio of the nut, the barrier block, and the screw rod is two to two to one.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The noise meter housing can flexibly adjust the angle, getting rid of the restriction of the operator's height, and more conveniently detecting noise sources at different positions and heights, improving the accuracy and efficiency of detection, solving the problem that traditional noise meters are limited by fixed angles and heights, and being installed in a hidden manner. When not in use, it can be placed in a hidden manner, reducing the occupied area and making the noise meter housing more convenient to operate;

[0018] (2) The adsorption force of the suction cup is adjusted by two methods of water pressure and negative pressure, which can adapt to the internal surfaces of elevators with different materials and textures. Without complex structures or additional adhesives, it is convenient for installation and adjustment. Moreover, fixing with water pressure and negative pressure will not cause damage to the interior of the elevator, ensuring the safe and reliable use of the device.

[0019] (3) The multi-angle support structure enables the noise meter housing to have a wider contact area at the bottom of the elevator, effectively overcoming the shaking and instability problems of single-point support, ensuring the stable detection of the noise meter, and thus being more suitable for long-term and efficient noise monitoring at the bottom of the elevator. Description of the Drawings

[0020] Figure 1 The figure shows a schematic structural diagram of a noise inspection device for a low-noise elevator structure in Embodiment 1;

[0021] Figure 2 The figure shows a schematic structural diagram of the installation of the sponge ball in Embodiment 1;

[0022] Figure 3 The figure shows a schematic structural diagram of the hidden extension mechanism in Embodiment 1;

[0023] Figure 4 The figure shows a schematic structural diagram of the installation of the movable rod in Embodiment 1;

[0024] Figure 5 The figure shows a schematic structural diagram of the installation of the suction cup in Embodiment 1;

[0025] Figure 6 The figure shows a schematic structural diagram of the installation of the moving column in Embodiment 1;

[0026] Figure 7 The figure shows a schematic structural diagram of the installation of the manual telescopic rod in Embodiment 1.

[0027] In the figure: 1, noise meter housing; 2, capacitive microphone sensor; 3, sponge ball; 4, notch; 5, hidden extension mechanism; 51, first concave frame; 52, second concave frame; 53, third concave frame; 54, fourth concave frame; 55, support rod; 56, screw; 57, nut; 58, movable rod; 59, piston column; 510, baffle; 511, manual telescopic rod; 512, bolt; 515, moving column; 514, rectangular rod; 515, positioning rod; 516, gear; 517, inclined rod; 518, storage groove; 519, suction cup. Detailed Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Embodiment 1

[0030] The present invention provides a noise inspection device for a low-noise elevator structure, as Figures 1 to 7 shown, including a noise meter housing 1, a capacitive microphone sensor 2 is fixedly installed at the top end of the noise meter housing 1, a sponge ball 3 is sleeved outside the capacitive microphone sensor 2, a notch 4 is opened in the middle of the back surface of the noise meter housing 1, and a hidden extension mechanism 5 is installed at a position inside the notch 4 on the back surface of the noise meter housing 1;

[0031] The hidden extension mechanism 5 includes a concave frame one 51 fixedly installed on the back surface of the noise meter housing 1, the bottom end of the inner wall of the concave frame one 51 is rotatably connected to a concave frame two 52, the top end of the inner wall of the concave frame two 52 is rotatably connected to a concave frame three 53, the bottom end of the inner wall of the concave frame three 53 is rotatably connected to a concave frame four 54, the top end of the inner wall of the concave frame four 54 is rotatably connected to a support rod 55, a suction cup 519 is symmetrically fixedly installed on one end surface of the support rod 55, and a plurality of inclined rods 517 are movably connected to the bottom end of the support rod 55.

[0032] As Figure 2 and Figure 3 shown, a screw 56 penetrates through the bottom end of the concave frame one 51, the top end of the concave frame two 52, the bottom end of the concave frame three 53, and the top end of the concave frame four 54. A nut 57 is threadedly connected to the outside of the screw 56. The concave frame two 52, the concave frame three 53, the concave frame four 54, and the support rod 55 are all rotatably connected to the outside of the screw 56. A barrier block is symmetrically welded to one end surface of the nut 57. The number ratio of the nut 57, the barrier block, and the screw 56 is two to two to one, which facilitates the rotation of the nut 57 and changes the rotation difficulty of the nut 57;

[0033] First, rotate the concave frame two 52 so that the concave frame two 52 rotates inside the concave frame one 51, making the concave frame two 52 perpendicular to the concave frame one 51. Then, through the cooperation of the nut 57 and the screw 56, fix the concave frame two 52 and the concave frame one 51. Then rotate the concave frame three 53 so that the concave frame three 53 rotates inside the concave frame two 52 and causes the concave frame three 53 to be perpendicular to the concave frame two 52. Then, through the cooperation of the nut 57 and the screw 56, fix the concave frame three 53 and the concave frame two 52. Next, rotate the concave frame four 54, and the concave frame four 54 rotates inside the concave frame three 53, making the concave frame four 54 perpendicular to the concave frame three 53 and then fixing it. Then rotate the support rod 55 so that the support rod 55 is perpendicular to the concave frame four 54 and is fixed. As a result, an extension rod extends from the back surface of the noise meter housing 1, and due to the extrusion and fixation using the nut 57 and the screw 56, the angle of the noise meter housing 1 is adjustable, reducing the problem that the detection effect is affected by the height limitation of the operator.

[0034] As Figures 2 to 5As shown, symmetrically and movably connected to one end face of the support rod 55 is a storage groove 518. Inside the storage groove 518 is movably connected an active rod 58. Symmetrically embedded and installed at one end face of the active rod 58 are piston columns 59. At a position on one side of the storage groove 518 at the other end of the support rod 55 is installed a suction cup 519. The storage groove 518 is composed of two T-shaped holes and a connecting groove. Inside the T-shaped holes is movably connected a piston column 59. Inside the support rod 55 are slidably connected a plurality of baffles 510. Symmetrically embedded and installed at one end face of one baffle 510 is a manual telescopic rod 511. The manual telescopic rod 511 and the support rod 55 are fixedly connected;

[0035] When the active rod 58 moves, it drives the piston column 59 to move. When the piston column 59 moves, it squeezes the water stains inside the storage groove 518, causing the water stains to enter the inside of the suction cup 519. Then, the suction cup 519 is attached to the inside of the elevator, increasing the adsorption force between the suction cup 519 and the elevator. Or, first squeeze the piston column 59 to empty the liquid inside the storage groove 518. Then, attach the suction cup 519 to the inside of the elevator. Next, pull the piston column 59 to create negative pressure inside the suction cup 519, using the negative pressure to increase the adsorption force between the suction cup 519 and the elevator. Both methods can fix the noise meter inside the elevator.

[0036] As Figures 4 to 6 As shown, movably connected inside the support rod 55 is a bolt 512. Threadedly connected to the outside of the bolt 512 is a moving column 513. Inside the moving column 513 is slidably connected a rectangular rod 514. Fixedly installed at the bottom end of the rectangular rod 514 is a positioning rod 515. The positioning rod 515 is fixedly installed at the bottom end of the support rod 55. The moving column 513 is welded by a cylinder and a sawtooth rack. The number ratio of the cylinder to the sawtooth rack is one to four. Meshingly connected to the outside of the moving column 513 is a gear 516, facilitating the rotation of the gear 516 and changing the rotation difficulty of the gear 516. Fixedly connected between the outside of the inclined rod 517 and the gear 516. One end face of the inclined rod 517 is in mutual contact with the outside of the positioning rod 515. Inside the gear 516 is fixedly connected a column. The column is rotatably connected inside the support rod 55, facilitating the limitation of the gear 516 and not hindering the rotation of the gear 516;

[0037] When the bolt 512 rotates, it drives the moving column 513 to rotate. Since the moving column 513 is limited by the rectangular rod 514 and cannot rotate, at this time, the moving column 513 can only move. When the moving column 513 moves, it drives the gear 516 to rotate. When the gear 516 rotates, it drives the inclined rod 517 to deflect. When multiple inclined rods 517 deflect synchronously, a multi-angle support is formed at the bottom end of the noise meter housing 1. Finally, place the noise meter housing 1 on the ground.

[0038] Working principle: During the actual use of the device, first rotate the second concave frame 52 so that the second concave frame 52 rotates inside the first concave frame 51, making the second concave frame 52 perpendicular to the first concave frame 51. Then, through the cooperation of the nut 57 and the screw rod 56, fix the second concave frame 52 and the first concave frame 51. Then rotate the third concave frame 53 so that the third concave frame 53 rotates inside the second concave frame 52 and causes the third concave frame 53 to be perpendicular to the second concave frame 52. Then, through the cooperation of the nut 57 and the screw rod 56, fix the third concave frame 53 and the second concave frame 52. Next, rotate the fourth concave frame 54, and the fourth concave frame 54 rotates inside the third concave frame 53, making the fourth concave frame 54 perpendicular to the third concave frame 53 and then fixing it. Then rotate the support rod 55 so that the support rod 55 is perpendicular to the fourth concave frame 54 and is fixed, so that an extension rod extends from the back of the noise meter housing 1. And because of the extrusion and fixation using the nut 57 and the screw rod 56, the angle of the noise meter housing 1 is adjustable, reducing the problem that the detection effect is affected by the height limitation of the operator;

[0039] When the safety factor inside the elevator is low, it is necessary to attach the noise meter to the inside of the elevator at this time. When the movable rod 58 moves, it drives the piston rod 59 to move. When the piston rod 59 moves, it squeezes the water stains inside the placement groove 518, making the water stains enter the suction cup 519. Then attach the suction cup 519 to the inside of the elevator, increasing the adsorption force between the suction cup 519 and the elevator. When the water inside the placement groove 518 is used up, the device first squeezes the piston rod 59 to completely drain the liquid inside the placement groove 518. Then attach the suction cup 519 to the inside of the elevator. Then pull the piston rod 59 to generate negative pressure inside the suction cup 519, and use the negative pressure to increase the adsorption force between the suction cup 519 and the elevator. Both methods can fix the noise meter inside the elevator. Finally, use the sponge ball 3 to reduce the wind noise, and then use the capacitive microphone sensor 2 to detect the sound;

[0040] Finally, when the noise meter needs to be placed at the bottom of the elevator for detection, rotate the bolt 512 at this time. When the bolt 512 rotates, it drives the moving column 513 to rotate. Since the moving column 513 is limited by the rectangular rod 514 and cannot rotate, the moving column 513 can only move at this time. When the moving column 513 moves, it drives the gear 516 to rotate. When the gear 516 rotates, it drives the inclined rod 517 to deflect. When multiple inclined rods 517 deflect synchronously, a multi-angle support is formed at the bottom of the noise meter housing 1. Finally, place the noise meter housing 1 on the ground, which is more suitable for long-term and efficient noise monitoring at the bottom of the elevator.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A noise inspection device for a low-noise elevator structure, characterized in that: include: A noise meter housing (1), a capacitive microphone sensor (2) is fixedly mounted on the top of the noise meter housing (1), a sponge ball (3) is sleeved on the outside of the capacitive microphone sensor (2), a notch (4) is opened in the middle of the back of the noise meter housing (1), and a hidden extension mechanism (5) is installed on the back of the noise meter housing (1) at a position inside the notch (4); The hidden extension mechanism (5) comprises a concave frame 1 (51) fixedly mounted on the back of the noise meter housing (1); the bottom end of the inner wall of the concave frame 1 (51) is rotatably connected to a concave frame 2 (52); the top end of the inner wall of the concave frame 2 (52) is rotatably connected to a concave frame 3 (53); the bottom end of the inner wall of the concave frame 3 (53) is rotatably connected to a concave frame 4 (54); the top end of the inner wall of the concave frame 4 (54) is rotatably connected to a support rod (55); a suction cup (519) is symmetrically fixedly mounted on one end surface of the support rod (55); and a plurality of tilting rods (517) are movably connected to the bottom end of the support rod (55).

2. A noise inspection device for a low-noise elevator structure according to claim 1, characterized in that: The bottom end of the concave frame 1 (51), the top end of the concave frame 2 (52), the bottom end of the concave frame 3 (53), and the top end of the concave frame 4 (54) are all connected with screw rods (56) through the inside, and the outer side of the screw rods (56) is connected with nuts (57) through threads, and the concave frame 2 (52), the concave frame 3 (53), the concave frame 4 (54) and the support rod (55) are all rotatably connected to the outer side of the screw rods (56).

3. A noise inspection device for a low-noise elevator structure according to claim 1, characterized in that: One end of the support rod (55) is symmetrically and movably connected to a storage groove (518), and a movable rod (58) is movably connected inside the storage groove (518). A piston column (59) is symmetrically embedded and installed on one end of the movable rod (58), and a suction cup (519) is installed at the other end of the support rod (55) at a position on one side of the storage groove (518).

4. A noise inspection device for a low-noise elevator structure according to claim 3, characterized in that: The storage slot (518) is composed of two T-shaped holes and a connecting slot, a piston column (59) is movably connected inside the T-shaped hole, a plurality of baffles (510) are slidably connected inside the support rod (55), a manual telescopic rod (511) is symmetrically embedded and installed on one end surface of one of the baffles (510), and the manual telescopic rod (511) and the support rod (55) are fixedly connected.

5. A noise inspection device for a low-noise elevator structure according to claim 4, characterized in that: The support rod (55) is movably connected with a bolt (512) inside, and the outer side of the bolt (512) is threadedly connected with a moving column (513), and the moving column (513) is slidably connected with a rectangular rod (514) inside, and a positioning rod (515) is fixedly installed at the bottom end of the rectangular rod (514), and the positioning rod (515) is fixedly installed at the bottom end of the support rod (55).

6. A noise inspection device for a low-noise elevator structure according to claim 5, characterized in that: The movable column (513) is welded by a cylinder and a sawtooth bar, and the number ratio of the cylinder to the sawtooth bar is one to four.

7. A noise inspection device for a low-noise elevator structure according to claim 5, characterized in that: The outer side of the moving column (513) is meshedly connected with a gear (516), and the tilting rod (517) is fixedly connected to the outer side of the gear (516).

8. A noise inspection device for a low-noise elevator structure according to claim 7, characterized in that: One end surface of the tilting rod (517) and the outer side of the positioning rod (515) are in contact with each other, and a column is fixedly connected inside the gear (516), and the column is rotatably connected to the inside of the support rod (55).

9. The noise inspection device for a low-noise elevator structure according to claim 1, characterized in that: A blocking block is symmetrically welded to one end surface of the nut (57), and the number ratio of the nut (57), the blocking block and the screw rod (56) is two to two to one.

Images