An elevator noise testing device and system

Abstract

This utility model relates to the field of testing technology, and in particular to an elevator noise testing device and system, comprising: a support assembly; a testing host mounted on the support assembly; a housing and a main control module disposed within the housing; and testing components, including a noise acquisition module, a distance measurement module, a positioning module, and a distance fine-tuning module integrated into the testing host; the noise acquisition module, distance measurement module, positioning module, and distance fine-tuning module are respectively connected to the main control module. The elevator noise testing device provided in this application, through a three-level collaborative control system integrating the distance measurement module, positioning module, and distance fine-tuning module, achieves rapid positioning and automatically adjusts the distance between the noise acquisition module and the test point through the distance fine-tuning module, realizing millimeter-level positioning accuracy of the detection point, ensuring accurate capture of the maximum noise value, and improving testing accuracy.

Description

Technical Field

[0001] This application relates to the field of noise testing technology, and in particular to an elevator noise testing device. Background Technology

[0002] The new versions of the "Elevator Supervision and Periodic Inspection Rules" and the "Elevator Self-Inspection Rules" have added requirements for testing elevator noise, including separate tests for machine room noise, car noise, door opening and closing noise, and noise at the landing door of elevators without a machine room. These tests have specific location requirements, such as 1.5m from the ground, 1.0m from the drive unit, and 0.24m from the door. The testing points and processes involved are quite complex. Currently, the testing locations are determined using a measuring tape according to the inspection rules, and then handheld noise testing equipment is used. Some points require testing the maximum noise level throughout the entire elevator's movement, which is extremely physically and mentally taxing for inspection personnel. Existing methods involve on-site inspection personnel manually recording and judging multiple data results, which is very inconvenient. During operation, personnel are prone to deviating from the testing position, requiring manual adjustments, resulting in time-consuming positioning and significantly impacting the accuracy of the measurement data. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an elevator noise testing device and system.

[0004] In a first aspect, embodiments of the present invention provide an elevator noise testing device, comprising:

[0005] Support assembly;

[0006] The test host is mounted on the bracket assembly; the test host includes a housing and a main control module located inside the housing;

[0007] The test components include a noise acquisition module, a distance measurement module, a positioning module, and a distance fine-tuning module integrated into the test host; the noise acquisition module, distance measurement module, positioning module, and distance fine-tuning module are respectively connected to the main control module;

[0008] The output of the distance fine-tuning module is connected to the noise acquisition module and is used to fine-tune the measurement position of the noise acquisition module.

[0009] In conjunction with the first aspect, the distance fine-tuning module includes:

[0010] The support component is located inside the housing; the support component has an accommodating space inside;

[0011] The stepper motor is located on the outside of the support component inside the housing;

[0012] The lead screw is located within the receiving space. One end of the lead screw passes through the support and is connected to the output end of the stepper motor; the other end passes through the slide and is connected to the inside of the support. The slide is also connected to the noise acquisition module. When the stepper motor drives the lead screw to rotate, the slide moves relative to the lead screw to adjust the measurement position of the noise acquisition module.

[0013] In conjunction with the first aspect, the stepper motor is connected to the main control module.

[0014] In conjunction with the first aspect, the support assembly includes:

[0015] Tripod; comprising a ring connector and three legs; the three legs are equidistantly arranged along the outer wall of the ring connector and connected to the ring connector; tactile positioning protrusions are provided on the outer edge of the ring connector;

[0016] The clamping device includes a clamping part at the top and a connecting part at the bottom; the connecting part penetrates vertically through the annular connector and engages with the internal thread of the annular connector to form a helical pair.

[0017] In conjunction with the first aspect, the test host also includes an SPI communication interface, which is connected to the main control module.

[0018] In conjunction with the first aspect, it also includes: a power supply module, which is located inside the test host and is electrically connected to the noise acquisition module, distance measurement module, positioning module, and main control module.

[0019] In conjunction with the first aspect, it also includes: a wireless communication module, which is located inside the test host and electrically connected to the main control module.

[0020] In conjunction with the first aspect, it also includes: a human-computer interaction module, which is located on the external end face of the test host and is electrically connected to the control unit inside the test host.

[0021] In conjunction with the first aspect, the equipment also includes:

[0022] Shock absorption components were tested between the inner casing of the main unit and the support components.

[0023] Secondly, this application provides an elevator noise testing system, including the equipment described above.

[0024] The present invention provides the following beneficial effects: An elevator noise testing device includes: a support assembly; a testing host mounted on the support assembly; a housing and a main control module housed within the housing; and a testing component including a noise acquisition module, a distance measurement module, a positioning module, and a distance fine-tuning module integrated into the testing host. The noise acquisition module, distance measurement module, positioning module, and distance fine-tuning module are respectively connected to the main control module. The output terminal of the distance fine-tuning module is connected to the noise acquisition module for fine-tuning the measurement position of the noise acquisition module.

[0025] The elevator noise equipment provided in this application uses a three-level collaborative control system integrating a distance measurement module, a positioning module, and a distance fine-tuning module. This system can automatically adjust the distance between the noise acquisition module and the measured point, achieving millimeter-level positioning accuracy of the detection point, ensuring accurate capture of the maximum noise value, and improving test accuracy.

[0026] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the external structure of the elevator noise testing equipment provided in the embodiments of this application;

[0030] Figure 2 This is a schematic diagram of the internal structure of the test host of the elevator noise testing equipment provided in the embodiments of this application;

[0031] Figure 3 This is a schematic diagram of signal transmission in the elevator noise testing equipment provided in an embodiment of this application.

[0032] The attached figures are labeled as follows:

[0033] 1-Support assembly, 11-Tripod, 111-Ring connector, 112-Legged frame, 12-Clamping device, 121-Clamping part, 122-Connecting part, 113-Driver;

[0034] 2-Test host, 21-Casing, 22-Main control module;

[0035] 3-Test component, 31-Noise acquisition module, 32-Distance measurement module, 33-Positioning module, 34-Distance fine-tuning module, 341-Stepper motor, 342-Lead screw, 343-Slide table, 344-Transmission component, 345-Support component;

[0036] 4-Damping components;

[0037] 5-Power supply module;

[0038] 6- Wireless communication module;

[0039] 7-Human-computer interaction module. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] To facilitate understanding of this embodiment, the application scenarios and design concepts of this application embodiment will be briefly introduced below.

[0042] Existing elevator noise testing equipment is difficult to position manually, is prone to deviation from the detection position, and affects the accuracy of the test.

[0043] Based on this, this application provides an elevator noise testing device and system.

[0044] Example 1

[0045] This application provides an elevator noise testing device, combined with... Figure 1 As shown, the device includes: a support assembly 1, a test host 2, and a test assembly 3 (not shown in the figure).

[0046] The support assembly 1 includes a tripod 11 and a clamping device 12 located on the top of the tripod, which are combined Figure 2 As shown.

[0047] The test host 2 is mounted on the bracket assembly 1. The test host includes a housing 21 and a main control module 22 located inside the housing 21.

[0048] Test component 3 includes a noise acquisition module 31, a distance measurement module 32, a positioning module 33, and a distance fine-tuning module 34 integrated into the test host 2 (combined with...). Figure 3 (As shown); the noise acquisition module 31, distance measurement module 32, positioning module 33, and distance fine-tuning module 34 are respectively connected to the main control module 22.

[0049] The output of the distance fine-tuning module 34 is connected to the noise acquisition module 31 and is used to fine-tune the measurement position of the noise acquisition module 31.

[0050] The elevator noise equipment provided in this application uses a three-level collaborative control system integrating a distance measurement module 32, a positioning module 33, and a distance fine-tuning module 34 to quickly locate the noise point and automatically adjust the distance between the noise acquisition module 31 and the measured point through the distance fine-tuning module. This achieves millimeter-level positioning accuracy of the detection point, ensures accurate capture of the maximum noise value, and improves test accuracy.

[0051] The distance measurement module 32 is used to measure the distance from the test point to the noise acquisition module 31. In this embodiment, the noise acquisition module 31 is a noise acquisition probe, and the working end face of the noise acquisition module 31 protrudes outward from the outer end face of the housing 21 and faces the elevator under test. The distance measurement module 32 is a laser sensor, and its working end face can be flush with or protrude outward from the outer end face of the housing 21 and face the elevator under test. Preferably, a built-in MEMS accelerator is used to detect the vibration of the equipment in real time, and the distance measurement error introduced by the vibration is eliminated by the reverse displacement algorithm. A binocular vision system and a temperature drift suppression strategy are used to improve the measurement accuracy in a coordinated manner.

[0052] In this embodiment, the positioning module 33 is a positioning laser head. During noise testing, it quickly locates the position of components such as the drive unit and landing doors using emitted visible light. The main control module 22 controls the on / off state of the positioning laser head by controlling the switching on and off of a transistor through a digital I / O interface. It is understood that the working end face of the positioning module 33 can be flush with or protrude from the outer end face of the housing 21, and its working end face should face the elevator under test.

[0053] In conjunction with the first aspect, the distance fine-tuning module 34 includes: a stepper motor 341, a lead screw 342, a slide 343, a transmission component 344, and a support component 345.

[0054] The support member 345 is located inside the housing 21, and the support member 345 has a receiving space.

[0055] The stepper motor 341 is located on the outside of the support member 345 inside the housing 21.

[0056] The lead screw 342 is located within the accommodating space. One end of the lead screw 342 passes through the support member 345 and is connected to the output end of the stepper motor 341. The other end passes through the slide table 343 and is connected to the inner side of the support member 345. The slide table 343 is connected to one end of the transmission member 344, and the other end of the transmission member 344 passes through the housing 21 and is connected to the noise acquisition module 31. When the stepper motor 341 drives the lead screw 342 to rotate, the slide table 343 moves relative to the lead screw 342 to adjust the measurement position of the noise acquisition module 31.

[0057] The slide table 343 is made of granite, and the surface of the lead screw 342 is coated with a diamond-like carbon film. Combined with the micro-stepping drive technology of the stepper motor 341, the transmission efficiency is improved. The stepper motor 341 drives the lead screw 342 (lead 1mm) to drive the slide table 343 for position compensation to adjust the position of the noise acquisition module 31. The noise acquisition module 31 is used to collect noise signals during elevator operation and outputs the collected noise signals as a 0-5V voltage signal, which is transmitted to the ADC terminal of the main control module 22 through a voltage follower.

[0058] In conjunction with the first aspect, the support assembly 1 includes: a tripod 11 and a clamping device 12.

[0059] The tripod 11 includes an annular connector 111 and three legs 112; the three legs 112 are equidistantly arranged along the outer wall of the annular connector 111 and connected to the annular connector 111; tactile positioning protrusions (not shown in the figure) are provided on the outer edge of the annular connector.

[0060] The clamping device 12 includes a clamping part 121 at the top and a connecting part 122 at the bottom; the connecting part 122 passes vertically through the annular connector 111.

[0061] Combination Figure 1 As shown, a triangular topological support structure is formed by the annular connector 111 and three circumferentially distributed legs 112. In an elevator testing environment, this structure improves vibration resistance and structural stability compared to conventional single-rod supports. In this embodiment, the legs 112 are all telescopic rods, such as electric telescopic rods, allowing adjustment of the height of the testing host 2. Preferably, tactile positioning protrusions (10° spacing, 0.8mm height) are provided on the outer edge of the annular connector 111, enabling operators to perform 120° circumferential positioning of the legs 112 by touch in a dark environment. This improves positioning efficiency compared to conventional smooth surfaces, meeting the emergency testing scenario response requirements of the TSG special equipment specifications. The annular connector 111 is made of 6061-T6 aluminum alloy (tensile strength 310MPa), while the legs 112 are made of carbon fiber. This composite structure ensures load-bearing capacity while reducing overall weight.

[0062] In addition, the connecting part 122 adopts a vertical through-type structure with a reserved diameter compensation margin (±2mm). It forms a helical pair with the internal thread of the annular connector 111. A driving member 113 is provided on the outside of the annular connector 111. The driving member 113 passes through the annular connector 111 laterally and abuts against the connecting part 122. Shaking the driving member 113 drives the connecting part 122 to generate displacement in the vertical direction, thereby realizing vertical adjustment. This drives the clamping part 121 at the top and the clamped test host 2 to move in the vertical direction to achieve a test height of 1.5m.

[0063] The clamping part 121 is an eccentric clamp, which generates clamping force through the eccentricity. Preferably, a V-shaped polyurethane friction pad is provided on the inner side of the eccentric clamp to increase the friction between the contact surfaces, thereby improving the clamping stability. Preferably, the clamping part 121 has a built-in tactile feedback module connected to the main control module 22, which triggers an alarm when the clamping force reaches a set threshold.

[0064] As a preferred option, the eccentric clamp integrates a counterweight slider, which is made of tungsten alloy. This reduces the deflection of the clamping part 121 during accelerated movement, ensuring the spatial attitude stability of the noise acquisition module 31.

[0065] In conjunction with the first aspect, the test host 2 also includes an SPI communication interface, which is connected to the main control module 22.

[0066] In this embodiment, a four-wire full-duplex SPI bus architecture (clock frequency up to 20MHz) is adopted to realize the parallel transmission of sensor data such as noise acquisition module 31 and distance measurement module 32; the SPI interface adopts differential signal transmission mode, which has strong anti-interference ability under the electromagnetic interference generated by elevator frequency converter.

[0067] In conjunction with the first aspect, it also includes: a power supply module 5, which is located inside the test host 2, and is electrically connected to the noise acquisition module 31, the distance measurement module 32, the positioning module 33, and the main control module 22.

[0068] Understandably, power module 5 is used to charge and discharge the lithium battery, and also to supply power to various electrical components. It manages the charging and discharging of the lithium battery through the charging management chip PW5306, and converts 5V to 3.3V through a step-down chip. Power module 5 is electrically connected to the aforementioned noise acquisition module 31, distance measurement module 32, positioning module 33, and main control module 22 to provide power to these modules. Noise acquisition module 31 is a noise probe.

[0069] In conjunction with the first aspect, the device also includes: a wireless communication module 6, located within the test host 2, electrically connected to the main control module 22, such as... Figure 3 As shown.

[0070] The wireless communication module 6 implements wireless communication functionality through a high-performance WIFI serial port module ESP8266. Through this wireless communication module 6, the test data obtained in the main control module 22 can be transmitted to wirelessly connected terminals (such as smartphones, PCs, etc.) or the cloud.

[0071] In conjunction with the first aspect, it also includes: Human-computer interaction module 7.

[0072] The human-computer interaction module 7 is located on the external end face of the test host 2 and is electrically connected to the main control module 22 inside the test host 2.

[0073] The human-machine interaction module 7 is an SPI-communication touchscreen that enables content display and interaction with inspection personnel.

[0074] In conjunction with the first aspect, the device also includes: shock absorption component 4.

[0075] The shock absorption component 4 is located between the inner shell 21 of the test host 2 and the support 345.

[0076] The damping component 4 is used to reduce the friction between the stepper motor 341 and the housing 21 when the drive slide 343 causes the noise acquisition module 31 to move during operation.

[0077] In this embodiment, the shock-absorbing component 4 can be a shock-absorbing structure with an outer sponge layer and an inner spring, or it can be an AGV shock-absorbing structure. This is only an example and is not limited.

[0078] During the test, first follow Figure 1 Extend the tripod 11 and adjust its height to the specified height (1.5m) for elevator noise measurement. Secure the noise testing host 2 to the tripod 11 using the clamping device 12. Turn on the power module 5 of the noise testing host 2 to enter the test page. Select a test scenario from four scenarios: machine room noise, car noise, door opening and closing noise, and noise at the landing door without a machine room. At this time, the positioning module 33 (i.e., the positioning laser head) and the distance measurement module 32 (i.e., the laser sensor) automatically turn on, and the human-machine interaction module 7 displays the test requirements corresponding to the scenario. Align the positioning laser head with the test point. The human-machine interaction module 7 then displays the real-time distance of the noise acquisition module 31 (i.e., the probe) from the test point and whether it is within the coarse adjustment range (red indicates not within the coarse adjustment range, green indicates within the coarse adjustment range). If the device is not placed within the coarse adjustment range, move the tripod 11 and observe the real-time test distance on the human-machine interface module 7 to adjust the position of the test host 2. Once placed within the coarse adjustment range, the human-machine interface module 7 will display a pop-up window asking "Perform automatic test?". Select "Confirm" to start the test automatically. During automatic testing, the test host 2 adjusts the measurement position of the noise acquisition module 31 through the distance fine adjustment module 34, ensuring that the distance from the noise acquisition module 31 to the measured point is within the standard requirements before starting noise acquisition.

[0079] Secondly, this application provides an elevator noise testing system, including the equipment described above.

[0080] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the system and modules described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0081] Furthermore, in the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0082] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0083] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0084] Finally, it should be noted that the above embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. An elevator noise testing apparatus, characterized by, include: Support assembly; The test host is mounted on the bracket assembly; The test host includes a housing and a main control module located inside the housing; The test components include a noise acquisition module, a distance measurement module, a positioning module, and a distance fine-tuning module integrated into the test host. The noise acquisition module, distance measurement module, positioning module, and distance fine-tuning module are respectively connected to the main control module; The output of the distance fine-tuning module is connected to the noise acquisition module and is used to fine-tune the measurement position of the noise acquisition module.

2. The apparatus of claim 1, wherein, The distance fine-tuning module includes: A support member is disposed within the housing; the support member has an accommodating space. A stepper motor is located on the outside of the support member inside the housing; A lead screw is disposed within the receiving space. One end of the lead screw passes through the support member and is connected to the output end of the stepper motor; the other end passes through the slide table and is connected to the inner side of the support member. The slide table is also connected to the noise acquisition module. When the stepper motor drives the lead screw to rotate, the slide table moves relative to the lead screw to adjust the measurement position of the noise acquisition module.

3. The apparatus of claim 2, wherein, The stepper motor is connected to the main control module.

4. The apparatus of claim 1, wherein, The support assembly includes: Tripod; comprising a ring connector and three legs; the three legs are equidistantly arranged along the outer wall of the ring connector and connected to the ring connector; tactile positioning protrusions are provided on the outer edge of the ring connector; The clamping device includes a clamping part at the top and a connecting part at the bottom; the connecting part penetrates vertically through the annular connector and engages with the internal thread of the annular connector to form a helical pair.

5. The device according to claim 1, characterized in that, The test host also includes an SPI communication interface, which is connected to the main control module.

6. The device according to claim 1, characterized in that, Also includes: The power supply module is located inside the test host and is electrically connected to the noise acquisition module, distance measurement module, positioning module, and main control module.

7. The device according to claim 1, characterized in that, Also includes: The wireless communication module is located inside the test host and is electrically connected to the main control module.

8. The device according to claim 1, characterized in that, Also includes: The human-computer interaction module is located on the external end face of the test host and is electrically connected to the control unit inside the test host.

9. The device according to claim 2, characterized in that, The device also includes: A shock-absorbing component is disposed between the housing and the support member within the test host.

10. An elevator noise testing system, characterized in that, Includes the device as described in any one of claims 1-9.

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