Noise measuring device with telescopic function

Abstract

The utility model relates to the technical field of measuring devices, in particular to a noise measuring device with a telescopic function, which comprises a fixed cylinder, a dustproof cloth bag is sleeved on the outer side of the fixed cylinder, an elastic rubber belt is fixedly connected on the outer side of the dustproof cloth bag, a pair of magnetic blocks is fixedly connected on the outer side of the elastic rubber belt, and the magnetic blocks are fixed on the fixed cylinder. A sliding rod is slidably connected to the side face of the inner wall of the fixing cylinder, a sliding rod is fixedly connected to one end of the sliding rod, and a telescopic assembly is arranged in the fixing cylinder. According to the noise meter, the micro motor, the winding roller, the traction rope, the sliding rod and the spring are arranged in a matched mode, automatic shrinkage of the noise meter body is achieved through take-up and pay-off of the winding roller, and through matched arrangement of the dustproof cloth bag, the magnetic block and the elastic rubber belt, when the noise meter body is shrunk to the position closest to the fixing cylinder, the noise meter body is prevented from falling off. The noise meter body is wrapped and protected through the dustproof cloth bag.

Description

Noise measuring device with telescopic function Technical Field

[0001] This utility model relates to the field of measuring device technology, and in particular to a noise measuring device with telescopic function. Background Technology

[0002] Noise pollution is one of the most significant forms of environmental pollution. High-decibel noise can even cause serious damage to the eardrums, leading to hearing loss. Noise testing instruments are used to detect noise in workplaces, public places such as squares, and are characterized by high sensitivity, high accuracy, and wide applicability. They can be used to measure noise in various environments to enable the implementation of relevant measures to control and reduce noise pollution. Generally, during noise testing, the worker holds the noise testing instrument and moves it to the testing location to take measurements.

[0003] A noise measuring device with telescopic function, authorized under publication number CN214843621U, includes a noise meter body and an adjustment assembly. The adjustment assembly includes a telescopic rod, a gear, and a mounting component. The telescopic rod includes an inner rod and an outer tube. One end of the inner rod is mounted on the noise meter body, and the other end passes through the outer tube, which is mounted on the mounting component. A rack segment is provided on the inner rod, with its end located inside the outer tube. An adjustment slot is provided on the outer tube to expose the rack segment end. The gear is rotatably mounted on the mounting component, located in the adjustment slot, and meshes with the rack segment. This application facilitates the movement of the noise meter to a designated position, thereby facilitating noise testing.

[0004] Regarding the aforementioned technologies, the existing measuring devices have the following drawbacks: they rely on rotating a handle to drive a gear to transmit power to a rack segment, thereby enabling the noise meter to extend and retract. This requires rotating the handle while holding the device, making the operation cumbersome and causing significant fatigue to the arm. Therefore, this invention provides a noise measuring device with an extendable function. Summary of the Invention

[0005] The purpose of this application is to provide a noise measuring device with a telescopic function to solve the problem in the above-mentioned background technology that the noise tester is telescopic by rotating the handle to drive the gear to transmit the transmission of the rack segment. This is cumbersome to operate and causes great fatigue to the arm.

[0006] To achieve the above objectives, this application provides the following technical solution: a noise measuring device with telescopic function, comprising a fixed cylinder, a dustproof bag sleeved on the outside of the fixed cylinder, an elastic rubber band fixedly connected to the outside of the dustproof bag, a pair of magnetic blocks fixedly connected to the outside of the elastic rubber band, a sliding rod slidably connected to the inner wall side of the fixed cylinder, a sliding rod fixedly connected to one end of the sliding rod, and a telescopic component provided inside the fixed cylinder.

[0007] Preferably, the telescopic assembly includes a fixed frame fixedly connected to the inner wall side of the fixed cylinder, a sliding rod slidably connected to the inner wall side of the fixed frame, a micro motor fixedly connected to the inner wall side of the fixed cylinder, a take-up roller fixedly connected to the output end of the micro motor, a traction rope provided on the outer side of the take-up roller, the traction rope passing through the fixed frame, and a fixed connection between the traction rope and one end of the sliding rod.

[0008] Preferably, a plurality of springs are fixedly connected to the bottom of the inner wall of the fixing frame, and the other end of the springs is fixedly connected to the slide rod.

[0009] Preferably, a protective sleeve is fixedly connected to the outside of the fixed cylinder, and the protective sleeve is made of rubber.

[0010] Preferably, a controller is provided on the outside of the fixed cylinder, and a noise meter body is installed at one end of the sliding rod.

[0011] Preferably, the dustproof bag has a slot on its inner side, and the fixing cylinder is adapted to the slot.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] In this invention, the combination of a micro motor, a winding roller, a traction rope, a slide bar, and a spring enables the automatic retraction of the noise meter body through the winding and unwinding of the winding roller. Furthermore, the combination of a dustproof bag, a magnetic block, and an elastic rubber belt ensures that when the noise meter body is retracted to the position closest to the fixed cylinder, the dustproof bag provides protection for the noise meter body. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a schematic diagram of the first-view axial side structure of this utility model;

[0016] Figure 2 is a schematic diagram of the second-view axial side structure of this utility model;

[0017] Figure 3 is a schematic diagram of the structure of the elastic rubber strip and magnetic block in this utility model;

[0018] Figure 4 is a magnified structural diagram of point A in Figure 2.

[0019] In the diagram: 1. Fixed cylinder; 2. Sliding rod; 3. Noise meter body; 4. Dustproof bag; 5. Elastic rubber belt; 6. Magnetic block; 7. Protective sleeve; 8. Controller; 9. Take-up roller; 10. Traction rope; 11. Micro motor; 12. Sliding rod; 13. Fixing frame; 14. Spring; 15. Slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1: Referring to Figures 1-4, the noise measuring device with telescopic function includes a fixed cylinder 1. The fixed cylinder 1 serves as the basic support structure of the entire device, providing space for the installation and operation of other components. A dustproof bag 4 is fitted onto the outside of the fixed cylinder 1. An elastic rubber band 5 is fixedly connected to the outside of the dustproof bag 4. The elastic rubber band 5 utilizes its elastic properties to tightly fit the fixed cylinder 1, making the installation of the dustproof bag 4 more stable. A pair of magnetic blocks 6 are fixedly connected to the outside of the elastic rubber band 5 to facilitate the fixing and installation of the device. A sliding rod 2 is slidably connected to the inner wall side of the fixed cylinder 1. The sliding rod 2 can slide along the inner wall side of the fixed cylinder 1, thereby realizing the telescopic function of the device and changing the overall length of the measuring device. One end of the device is fixedly connected to a sliding rod 12, which moves synchronously with the sliding rod 2 to transmit the motion state. A telescopic assembly is provided inside the fixed cylinder 1. The telescopic assembly includes a fixed frame 13 fixedly connected to the inner wall side of the fixed cylinder 1. The fixed frame 13 plays a supporting and positioning role, ensuring that other components in the telescopic assembly can operate stably. The sliding rod 12 is slidably connected to the inner wall side of the fixed frame 13, and the sliding rod 12 can slide smoothly in the fixed frame 13, further ensuring the stable extension and retraction of the sliding rod 2. A micro motor 11 is fixedly connected to the inner wall side of the fixed cylinder 1. The micro motor 11 serves as a power source, providing power output for the extension and retraction of the device. A take-up roller 9 is fixedly connected to the output end of the micro motor 11. When the micro motor 11 is running, it drives the take-up roller 9 to rotate. A traction rope 10 is provided on the outer side of the take-up roller 9. The traction rope 10 passes through the fixed frame 13 and is fixedly connected to one end of the slide rod 12. When the take-up roller 9 rotates, it can rewind or release the traction rope 10, thereby pulling the slide rod 12 and realizing the extension and retraction of the slide rod 2. Multiple springs 14 are fixedly connected to the bottom of the inner wall of the fixed frame 13, and the other end of the springs 14 is fixedly connected to the slide rod 12. The springs 14 play the role of buffering and resetting. When the slide rod 2 extends or retracts, the springs 14 can reduce the impact of the movement of the slide rod 12, and assist the slide rod 12 to reset when the traction rope 10 is released. A protective sleeve 7 is fixedly connected to the outer side of the fixed cylinder 1. The protective sleeve 7 is made of rubber. The protective sleeve 7 can protect the fixed cylinder 1 from damage such as collisions, and at the same time increase the friction when holding it, making it easier for the operator to hold the device for noise measurement.

[0023] Example 2: Referring to Figures 1-4, based on the same concept as Example 1, this example further proposes that a controller 8 be installed on the outside of the fixed cylinder 1. The controller 8 is used to control various operating parameters of the equipment, ensuring stable and efficient operation of the equipment through precise command transmission. A noise meter body 3 is installed at one end of the sliding rod 2. The noise meter body 3 can monitor the noise level of the surrounding environment in real time, while the sliding rod 2 can flexibly adjust the position of the noise meter body 3 to obtain noise data at different points. A slot 15 is provided on the inner side of the dustproof bag 4, and the fixed cylinder 1 is adapted to the slot 15. The dustproof bag 4 can effectively block dust and other impurities, preventing them from entering the equipment and affecting its performance. The matching design of the slot 15 and the fixed cylinder 1 allows the dustproof bag 4 to be securely installed on the fixed cylinder 1, ensuring the normal functioning of the dustproof function.

[0024] The working principle of this utility model is as follows: Hold the protective sleeve 7 with your hand, and control the micro motor 11 through the controller 8 to drive the take-up roller 9 to rotate. The take-up roller 9 releases the traction rope 10. Under the action of the spring 14, the sliding rod 12 drives the sliding rod 2 to extend out of the fixed cylinder 1. The sliding rod 12 drives the noise meter body 3 to move. Control the micro motor 11 to drive the take-up roller 9 to take in the traction rope 10. The traction rope 10 drives the sliding rod 12 to compress the spring 14, which retracts the noise meter body 3, realizing the extension and retraction of the noise meter body 3. When the noise meter body 3 retracts to the position closest to the fixed cylinder 1, drag the dustproof bag 4 to cover the outside of the noise meter body 3. Through the attraction of a pair of magnetic blocks 6, the noise meter body 3 is wrapped and protected.

[0025] 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 measuring device with telescopic function, comprising a fixed cylinder (1), characterized in that: A dustproof bag (4) is fitted on the outside of the fixed cylinder (1). An elastic rubber belt (5) is fixedly connected to the outside of the dustproof bag (4). A pair of magnetic blocks (6) are fixedly connected to the outside of the elastic rubber belt (5). A sliding rod (2) is slidably connected to the inner wall side of the fixed cylinder (1). A sliding rod (12) is fixedly connected to one end of the sliding rod (2). A telescopic assembly is provided inside the fixed cylinder (1). The telescopic assembly includes a fixed frame (13) fixedly connected to the inner wall side of the fixed cylinder (1). The sliding rod (12) is slidably connected to the inner wall side of the fixed frame (13). A micro motor (11) is fixedly connected to the inner wall side of the fixed cylinder (1). A winding roller (9) is fixedly connected to the output end of the micro motor (11). A traction rope (10) is provided on the outside of the winding roller (9). The traction rope (10) passes through the fixed frame (13). One end of the traction rope (10) is fixedly connected to the sliding rod (12).

2. The noise measuring device with telescopic function according to claim 1, characterized in that: Multiple springs (14) are fixedly connected to the bottom of the inner wall of the fixed frame (13), and the other end of the spring (14) is fixedly connected to the slide rod (12).

3. The noise measuring device with telescopic function according to claim 2, characterized in that: A protective sleeve (7) is fixedly connected to the outside of the fixed cylinder (1), and the protective sleeve (7) is made of rubber.

4. The noise measuring device with telescopic function according to claim 3, characterized in that: A controller (8) is provided on the outside of the fixed cylinder (1), and a noise meter body (3) is installed at one end of the sliding rod (2).

5. The noise measuring device with telescopic function according to claim 1, characterized in that: The dustproof bag (4) has a slot (15) on its inner side, and the fixing cylinder (1) is adapted to the slot (15).

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