Portable noise detection device

Abstract

The utility model discloses a portable noise detection device, which comprises a detection machine body and is characterized in that the back of the detection machine body is provided with an installation groove, the installation groove is connected with a binding belt, the detection machine body is internally provided with an inner cavity, the top of the inner cavity is provided with a through hole penetrating through the detection machine body, the inner cavity is provided with a telescopic mechanism, and the telescopic mechanism is connected with the detection machine body. The telescopic mechanism comprises a supporting block, a detection rod is fixedly connected to the supporting block, a noise sensor is arranged at the top of the detection rod, sound receiving cotton foam wraps the noise sensor, and a display screen and control keys are arranged on the front face of the detection machine body. The device is convenient to carry, can adapt to more complex working environments, can effectively avoid pollution and collision of detection parts, and further can be protected, the service life of the device is prolonged, and the detection precision of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of noise detection, and belongs to a portable noise detection device. Background Art

[0002] Noise pollution has become an issue that cannot be ignored in modern society. Whether it is the roar of factory machines, the noisy road traffic, or the noise from construction sites, they all seriously interfere with people's daily lives and work. Long-term exposure to high noise environments will not only cause hearing loss, but may also cause a series of psychological and physiological problems, such as insomnia, irritability, and high blood pressure.

[0003] Therefore, it is particularly important to effectively detect and evaluate noise. Noise detection technology can understand the noise level in the environment in real time, making it convenient for relevant personnel to take appropriate measures to control it. Noise detection devices usually use highly sensitive acoustic sensors as sound signal collectors to capture noise signals in the environment in real time, playing an important role in noise pollution detection and control. The device can be widely used in environmental monitoring, industrial production, urban management and other fields, providing strong technical support for noise pollution detection and control.

[0004] The portable noise detection devices currently on the market are generally carried with a rope. The fixing structure of the connection between the rope and the device is simple, which is easily damaged and broken during use. It is often not suitable for complex working environments and has a short service life. In addition, the detection heads of most portable noise detection devices are exposed, which can easily cause collision and contamination of the detection part, which not only easily damages the device, but also affects the accuracy of the noise detection results. Utility Model Content

[0005] The utility model provides a portable noise detection device, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above object, the utility model provides the following implementation scheme:

[0007] The present application provides a portable noise detection device, including a detection body, characterized in that a mounting groove is provided on the back of the detection body, a tightening belt is connected to the mounting groove, an inner cavity is provided inside the detection body, a through hole penetrating the detection body is provided on the top of the inner cavity, a telescopic mechanism is provided on the inner cavity, the telescopic mechanism includes a support block, a detection rod is fixedly connected to the support block, a noise sensor is provided on the top of the detection rod, the noise sensor is wrapped with sound-receiving cotton foam, and a display screen and control keys are provided on the front of the detection body.

[0008] Preferably, pins are provided at both ends of the tightening belt, a connecting platform is provided on the back of the detection body, a slot is provided in the connecting platform, and the pin is movably connected in the slot.

[0009] Preferably, an arc-shaped groove is opened on the back of the detection body, the connecting platforms are distributed on both sides of the arc-shaped groove, and a soft film layer is arranged on the arc-shaped groove.

[0010] Preferably, a flap groove is provided at the top of the through hole, and a sealing cover is movably connected to the flap groove via a connecting shaft.

[0011] Preferably, the telescopic mechanism also includes a connecting frame, a bidirectional gear bar is provided on the connecting frame, outward gear bars are provided on the support block and the side wall of the inner cavity, a first spur gear is provided on the support block, and a second spur gear is provided on the connecting frame. The first spur gear is located between the connecting frame and the support block, and the second spur gear is located between the connecting frame and the inner cavity. The first spur gear and the second spur gear are both movably connected to the bidirectional gear bar and the outward gear bar through gear meshing.

[0012] Preferably, a threaded hole is provided at the lower end of the connecting frame, a micro motor is fixedly provided at the bottom of the inner cavity, a transmission screw is connected to the output end of the micro motor via a coupling, and the transmission screw is movably connected to the threaded hole via a threaded fit.

[0013] Compared with the prior art, the utility model provides a portable noise detection device, which has the following beneficial effects:

[0014] 1. The utility model is provided with a tightening belt, and pins are arranged at both ends, which can be connected with two slots on the detection body, so that the load on the connection point is smaller, the connection is more stable, and it can adapt to more complex working environments while increasing the service life of the device. In addition, the arc groove and soft film layer arranged on the back of the detection body can protect the staff and prevent slipping.

[0015] 2. The utility model is provided with a telescopic mechanism, which is connected to the detection rod, and then the telescopic mechanism is pushed out when the device is in use and retracted when not in use, which can effectively avoid contamination and collision of the device, thereby protecting the device and ensuring the detection accuracy of the device.

[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the tightening belt of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the telescopic mechanism of the utility model;

[0020] Figure 4 It is a partial cross-sectional view of the utility model;

[0021] In the figure: 1. detection body; 11. arc groove; 12. soft film layer; 2. connecting platform; 3. tightening belt; 31. latch; 32. connecting platform; 33. slot; 4. inner cavity; 41. through hole; 42. flip cover slot; 43. sealing cover; 5. telescopic mechanism; 51. support block; 52. connecting frame; 521. threaded hole; 53. two-way gear bar; 54. outward gear bar; 55. first spur gear; 56. second spur gear; 57. micro motor; 58. transmission screw; 59. detection rod; 6. noise sensor; 7. radio foam; 8. display screen; 9. control key. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] See also Figure 1-4 A portable noise detection device comprises a detection body 1, a mounting groove 2 is arranged on the back of the detection body 1, a tightening belt 3 is connected to the mounting groove 2, an inner cavity 4 is arranged inside the detection body 1, a through hole 41 penetrating the detection body 1 is arranged on the top of the inner cavity 4, a telescopic mechanism 5 is arranged on the inner cavity 4, the telescopic mechanism 5 comprises a supporting block 51, a detection rod 59 is fixedly connected to the supporting block 51, a noise sensor 6 is arranged on the top of the detection rod 59, and the noise sensor 6 is wrapped with a sound receiving cotton foam 7, and a display screen 8 and a control key 9 are arranged on the front of the detection body 1.

[0024] Pins 31 are provided at both ends of the tightening belt 3, and a connecting platform 32 is provided on the back of the detection body 1. A slot 33 is provided in the connecting platform 32, and the pin 31 is movably connected in the slot 33. The tightening belt 3 is elastic and can be conveniently carried in various ways such as hand-held, wrist-hung, and head-mounted, which greatly improves the portability of the device and can adapt to a complex working environment. The two ends of the tightening belt 3 can be connected and fixed by the pins 31 at both ends, and the total load during carrying is evenly distributed, which reduces the probability of damage and increases the service life.

[0025] The detection body 1 has an arc groove 11 on its back, the connection platform 32 is distributed on both sides of the arc groove 11, and a soft film layer 12 is provided on the arc groove 11. The arc groove 11 reserves enough space for easy carrying, and the soft film layer 12 can prevent slipping and provide buffering.

[0026] A flap groove 42 is provided at the top of the through hole 41, and a sealing cover 43 is movably connected to the flap groove 42 via a connecting shaft. The sealing cover 43 is used to protect the inner cavity 4 when the device is not in use to prevent impurities from entering.

[0027] The telescopic mechanism 5 also includes a connecting frame 52, on which a bidirectional gear bar 53 is provided, and on the side walls of the support block 51 and the inner cavity 4, outward gear bars 54 are provided, and on the support block 51, a first spur gear 55 is provided, and on the connecting frame 52, a second spur gear 56 is provided, and the first spur gear 55 is located between the connecting frame 52 and the support block 51, and the second spur gear 56 is located between the connecting frame 52 and the inner cavity 4, and the first spur gear 55 and the second spur gear 56 are both movably connected to the bidirectional gear bar 53 and the outward gear bar 54 through gear meshing.

[0028] A threaded hole 521 is provided at the lower end of the connecting frame 52, a micro motor 57 is fixedly provided at the bottom of the inner cavity 4, an output end of the micro motor 57 is connected to a transmission screw 58 through a coupling, and the transmission screw 58 is movably connected to the threaded hole 521 through a threaded fit.

[0029] The working principle of the embodiment of the utility model:

[0030] When the utility model is used, when the device is working, first open the sealing cover 43, then open the device through the control key 9, and the micro motor 57 drives the transmission screw 58 to transmit, and the connecting frame 52 is driven to move upward through the threaded cooperation, and then the power is transmitted through the gear meshing. The connecting frame 52 moves upward along the side wall of the inner cavity 4 through the cooperation of the second spur gear 56 and the two-way gear bar 53, and the two-way gear bar 53 transmits the power to the first spur gear 55, and the first spur gear 55 transmits the power to the two-way gear bar 53 on the support block 51, thereby the support block 51 moves upward through the gear transmission of the first spur gear 55 and the two-way gear bar 53, and then the detection rod 59 is pushed upward along the through hole 41, exposing the radio foam 7 to the detection environment, and then the detection is started through the control key 9, and the detection result parameters are displayed on the display screen 8.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable noise detection device, comprising a detection body (1), characterized in that: The detection body (1) is provided with a connecting platform (2) on the back, and a tightening belt (3) is connected to the connecting platform (2). The detection body (1) is provided with an inner cavity (4), and a through hole (41) penetrating the detection body (1) is provided at the top of the inner cavity (4). A telescopic mechanism (5) is provided on the inner cavity (4), and the telescopic mechanism (5) comprises a supporting block (51), and a detection rod (59) is fixedly connected to the supporting block (51). A noise sensor (6) is provided on the top of the detection rod (59), and the noise sensor (6) is wrapped with a sound-receiving cotton foam (7). A display screen (8) and control keys (9) are provided on the front of the detection body (1).

2. A portable noise detection device as claimed in claim 1, characterized in that: Pins (31) are provided at both ends of the tightening belt (3), mounting grooves (32) are provided on both sides of the connecting platform (2), slots (33) are provided in the mounting grooves (32), and the pins (31) are movably connected in the slots (33).

3. A portable noise detection device as claimed in claim 2, characterized in that: The back of the detection body (1) is provided with an arc-shaped groove (11), the mounting grooves (32) are distributed on both sides of the arc-shaped groove (11), and a soft film layer (12) is provided on the arc-shaped groove (11).

4. A portable noise detection device as claimed in claim 1, characterized in that: A flap groove (42) is provided at the top end of the through hole (41), and a sealing cover (43) is movably connected to the flap groove (42) via a connecting shaft.

5. A portable noise detection device as claimed in claim 1, characterized in that: The telescopic mechanism (5) further comprises a connecting frame (52), a bidirectional gear bar (53) being arranged on the connecting frame (52), an outward gear bar (54) being arranged on the side wall of the supporting block (51) and the inner cavity (4), a first spur gear (55) being arranged on the supporting block (51), and a second spur gear (56) being arranged on the connecting frame (52), the first spur gear (55) being located between the connecting frame (52) and the supporting block (51), the second spur gear (56) being located between the connecting frame (52) and the inner cavity (4), and the first spur gear (55) and the second spur gear (56) being movably connected to the bidirectional gear bar (53) and the outward gear bar (54) through gear meshing.

6. A portable noise detection device as claimed in claim 5, characterized in that: A threaded hole (521) is provided at the lower end of the connecting frame (52), a micro motor (57) is fixedly provided at the bottom of the inner cavity (4), an output end of the micro motor (57) is connected to a transmission screw (58) via a coupling, and the transmission screw (58) and the threaded hole (521) are movably connected via a threaded fitting.

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