Noise detector

Abstract

The utility model relates to the technical field of noise detectors, and discloses a noise detector, which comprises a detector main body, a display screen and a control button are arranged on the detector main body, a noise probe is arranged at the top of the detector main body, and a sponge sheath is fixedly arranged at the upper end of the noise probe. The noise probe is further provided with a directional detection accessory, the directional detection accessory is in a flaring cover shape, and the inner wall of the directional detection accessory absorbs sound. Compared with the prior art, the sound source in a certain direction can be detected, the sound source in at least one direction can be inhibited or isolated, the noise source can be better judged and detected in a closed or echo environment, the structure is simple, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of noise detection technology, and in particular to a noise detection instrument. Background Technology

[0002] The existing patent publication number (CN220063171U) discloses a wireless transmission type noise detector, including a protective shell. The protective shell includes a front shell and a back cover, forming an inner cavity. A circuit board is arranged in the middle of the inner cavity. A wireless receiving module is connected to one side of the circuit board, enabling the protective shell to receive and record signals from an area locator, thus recording the location information of the inspector. A noise detection unit is arranged below the circuit board to detect noise in the environment. This utility model, by setting up area locators in underground refuge chambers and goafs, collects the location and noise data of the area where the area locator is located through a wireless receiving module and a noise detection unit, and binds the two, uploads the data to a computer for display after the user is brought to the surface, generates a report, and generates the inspection trajectory of underground personnel. This can compensate for the deficiencies of safety monitoring systems, personnel positioning systems, and underground patrol systems.

[0003] However, such a detector cannot detect the direction of the sound source. Often, noise sources come from all directions. When we need to detect and compare sources from different directions, such a device cannot effectively isolate interference from the opposite direction.

[0004] This proposal is put forward in order to improve and optimize the above-mentioned problems or shortcomings. Utility Model Content

[0005] A noise detector includes a detector body, on which a display screen and control buttons are configured, and a noise probe is configured on the top of the detector body, with a sponge cover fixed to the upper end of the noise probe;

[0006] The noise probe is also equipped with a directional detection accessory, which is shaped like an expanded mask and has sound-absorbing inner walls.

[0007] Furthermore, an adjustable connecting component is provided outside the noise probe, and the directional detection accessory is fitted outside the adjustable connecting component and can be displaced and adjusted along the axis of the noise probe.

[0008] Preferably, the noise probe is fitted with a plastic threaded sleeve, and the directional detection accessory is threadedly connected to the plastic threaded sleeve.

[0009] Preferably, the directional detection accessory includes a directional microphone cover and a threaded sleeve, wherein the threaded sleeve and the plastic threaded sleeve are threadedly connected.

[0010] Preferably, when the threaded sleeve is rotated to the bottom of the plastic threaded sleeve, the sponge sheath is completely outside the coverage area of ​​the directional sound-receiving cover, and the main body of the detector can perform detection like a traditional detector.

[0011] Preferably, when the threaded sleeve is rotated to the top of the plastic threaded sleeve, the sponge sheath is completely within the coverage area of ​​the directional sound-collecting cover, so that the end of the noise probe mainly detects the sound source at the front end.

[0012] Preferably, the inner wall of the directional sound receiver is provided with honeycomb sound-absorbing grooves, and a sound-absorbing coating is provided on the honeycomb sound-absorbing grooves. This isolates the interference sound source on the rear side and prevents the sound source in front from being reflected and causing interference after being received.

[0013] The advantages and positive effects of this utility model are:

[0014] 1. Compared with existing technologies, this technology can detect sound sources in a certain direction and suppress or isolate sound sources in at least one direction. It can better identify and detect noise sources in enclosed or echo environments, and has a simple structure and is easy to use. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] The attached image is marked with: Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0021] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0022] like Figure 1-2 As shown, the noise detector of this utility model includes a detector body 10, on which a display screen 11 and control buttons 12 are configured. A noise probe 13 is configured on the top of the detector body 10, and a sponge cover 14 is fixedly provided on the upper end of the noise probe 13.

[0023] A directional detection accessory 16 is also provided on the noise probe 13. The directional detection accessory 16 is shaped like an enlarged mask and its inner wall absorbs sound.

[0024] Furthermore, an adjustable connecting component is provided outside the noise probe 13, and the directional detection accessory 16 is fitted outside the adjustable connecting component and can be displaced and adjusted along the axial direction of the noise probe 13.

[0025] Preferably, the noise probe 13 is fitted with a plastic threaded sleeve 15, and the directional detection accessory 16 is threadedly connected to the plastic threaded sleeve 15.

[0026] Preferably, the directional detection accessory 16 includes a directional microphone cover 18 and a threaded sleeve 17, wherein the threaded sleeve 17 and the plastic threaded sleeve 15 are threadedly connected.

[0027] Preferably, when the threaded sleeve 17 is rotated to the bottom of the plastic threaded sleeve 15, the sponge sleeve 14 is completely outside the coverage area of ​​the directional sound-receiving cover 18, and the detector body 10 can perform detection like a traditional detector.

[0028] Preferably, when the threaded sleeve 17 is rotated to the top of the plastic threaded sleeve 15, the sponge sleeve 14 is completely within the coverage area of ​​the directional sound receiver 18, so that the end of the noise probe 13 mainly detects the sound source at the front end.

[0029] Preferably, the inner wall of the directional sound receiver 18 is provided with a honeycomb sound-absorbing groove 19, and a sound-absorbing coating is provided on the honeycomb sound-absorbing groove 19. This isolates the interference sound source on the rear side and avoids the sound source in front from reflecting back and causing interference after being received.

[0030] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A noise detector, comprising a detector main body (10), a display screen (11) and a control button (12) arranged on the detector main body (10), a noise probe (13) arranged on the top of the detector main body (10), and a sponge sheath (14) fixed on the upper end of the noise probe (13); characterized in that: a directional detection accessory (16) is further arranged on the noise probe (13), the directional detection accessory (16) is in the shape of a flared cover, and the inner wall of the directional detection accessory (16) is sound-absorbing; and an adjustable connecting component is further arranged outside the noise probe (13), the directional detection accessory (16) is sleeved outside the adjustable connecting component and can be adjusted and displaced along the axial direction of the noise probe (13). A plastic threaded sleeve (15) is fixedly sleeved outside the noise probe (13), and the directional detection accessory (16) and the plastic threaded sleeve (15) are threadedly connected. The directional detection accessory (16) comprises a directional sound collecting cover (18) and a threaded pipe sleeve (17), wherein the threaded pipe sleeve (17) and the plastic threaded sleeve (15) are threadedly connected.

2. A noise detector according to claim 1, characterised in that: When the threaded pipe sleeve (17) is rotated to the bottom of the plastic threaded sleeve (15), the sponge sheath (14) is completely outside the coverage range of the directional sound collecting cover (18), and the detector main body (10) can be detected like a traditional detector.

3. A noise detector according to claim 2, characterised in that: When the threaded pipe sleeve (17) is rotated to the top of the plastic threaded sleeve (15), the sponge sheath (14) is completely located in the coverage range of the directional sound collecting cover (18).

4. A noise detector according to claim 3, characterised in that: The inner wall of the directional sound collecting cover (18) is provided with a honeycomb sound-absorbing groove (19), and the honeycomb sound-absorbing groove (19) is provided with a sound-absorbing coating.

5. A noise detector according to claim 4, characterised in that: ​ 6. A noise detector according to claim 5, characterised in that: ​

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