A directional enhancement receiver noise meter

Abstract

This utility model provides a directional enhancement receiver noise meter, including a first protective shell, a second protective shell, an operating rod, and a noise meter body. The first protective shell has short grooves on both the front and rear sides, and long grooves on both the front and rear sides, and at both the top and bottom. A connecting shaft is rotatably mounted above the connecting pipe of the noise meter body. A ring is fixedly sleeved on the lower outer end of the connecting shaft. An L-shaped locking rod is fixed to the right rear end of the operating rod, and a second guide rod and a third spring are fixed to the left rear end of the operating rod. A slider is slidably sleeved on the outer side of the second guide rod, and the rear end of the third spring is fixed to the slider. This utility model has a reasonable structure and good practicality. The split-type quick-release protective shell makes instrument maintenance and battery replacement quick and convenient, saving time and effort. The pin-type positioning mechanism can firmly lock the angle of the noise receiver, preventing deflection during measurement and ensuring data accuracy.

Description

Technical Field

[0001] This utility model is a directional enhancement receiver noise meter, belonging to the field of medical device technology. Background Technology

[0002] Noise pollution is a significant environmental factor affecting people's work, life, and physical and mental health. To accurately assess and control noise, noise detectors are widely used in various fields such as industrial production, road traffic, and construction.

[0003] Patent No. CN212363420U discloses a directional enhancement receiving noise meter, comprising a noise meter body, a protective shell, a display screen, and a noise receiver rotatably connected via a connecting shaft. This solution enhances the reception of noise from a specific direction by rotating the noise receiver and uses a vacuum suction cup for fixed placement, which facilitates operation to some extent. However, the integrated protective shell is difficult to disassemble, making internal maintenance and calibration extremely inconvenient. Furthermore, the rotation adjustment of the noise receiver lacks effective locking, making it prone to deflection due to external forces during measurement, and precise angle positioning is impossible, severely affecting measurement stability and data reliability. Therefore, a directional enhancement receiving noise meter is urgently needed to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a directional enhancement receiver noise meter to solve the problems mentioned in the background. This invention has a reasonable structure and good practicality. It features a split quick-release protective shell, which makes instrument maintenance and battery replacement quick and convenient, saving time and effort. The pin-type positioning mechanism can firmly lock the angle of the noise receiver, preventing deflection during measurement and ensuring data accuracy.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a directional enhancement receiving noise meter, comprising a first protective shell, a second protective shell, an operating rod, and a noise meter body. The first protective shell has short grooves at both the upper and lower ends of its front and rear sides, and the second protective shell has long grooves at both the upper and lower ends of its front and rear sides. A connecting shaft is rotatably mounted above the connecting pipe of the noise meter body. A circular ring is fixedly sleeved on the lower outer end of the connecting shaft. An L-shaped locking rod is fixed to the right rear end of the operating rod. A second guide rod and a third spring are fixed to the left rear end of the operating rod. A slider is slidably sleeved on the outer side of the second guide rod. The rear end of the third spring is fixed to the slider. A first guide rod and a second spring are fixed to the left end of the slider. A square plate is slidably sleeved on the outer side of the first guide rod. The left end of the second spring is fixed to the square plate. A round rod is slidably installed above the right end of the circular ring. A circular magnetic piece is fixed to the upper end of the round rod. A positioning post is fixed to the lower end of the round rod. An L-shaped iron rod is fixed to the right upper end of the circular ring.

[0006] Furthermore, a first spring is fixed below the circular magnetic sheet, and the lower end of the first spring is fixed to the circular ring. A lever is fixed to the right side of the circular magnetic sheet.

[0007] Furthermore, each of the short slots has a slot inside, a first magnetic block is embedded in the left side of both the upper and lower ends of the first protective shell, a second magnetic block is embedded in the right side of both the upper and lower ends of the second protective shell, and a semi-circular slot is provided in the upper middle part of the first protective shell and the upper middle part of the second protective shell respectively.

[0008] Furthermore, a semicircular ring is fixed to the upper middle part of the first protective shell and the upper middle part of the second protective shell respectively. Multiple positioning holes are provided through the upper part of both semicircular rings, and arc-shaped grooves are provided at the left and right ends of both semicircular rings.

[0009] Furthermore, transparent plates are respectively provided on the front side of the first protective shell and the front side of the second protective shell, and rectangular grooves are respectively provided through the front side of the two transparent plates, and transparent tough membranes are respectively fixed inside the two rectangular grooves.

[0010] Furthermore, a noise receiver is provided at the other end of the connecting shaft.

[0011] Furthermore, the operating lever is provided in multiple ways, the multiple sliders are slidably installed in multiple long slots respectively, and the multiple square plates are fixed in multiple long slots respectively.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a directional enhancement receiving noise meter. Because it incorporates a first protective shell, a second protective shell, a connecting shaft, a noise receiver, a circular ring, a semi-circular ring, a transparent plate, a transparent tough membrane, an operating rod, a first magnetic block, a second magnetic block, a positioning post, an L-shaped iron rod, a lever, a round rod, a first spring, a circular magnetic sheet, an L-shaped locking rod, a slider, a square plate, a limiting cover, a second spring, a first guide rod, a third spring, and a second guide rod, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. The separate quick-release protective shell makes instrument maintenance and battery replacement quick and convenient, saving time and effort. The pin-type positioning mechanism can firmly lock the angle of the noise receiver, preventing deflection during measurement and ensuring data accuracy. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a directional enhancement receiver noise meter according to the present invention;

[0015] Figure 2This is a three-dimensional schematic diagram of the main structure of a directional enhancement receiving noise meter according to the present invention;

[0016] Figure 3 This is a three-dimensional cross-sectional structural diagram of a directional enhancement receiver noise meter according to the present invention;

[0017] Figure 4 This is a three-dimensional schematic diagram of the ring structure of a directional enhancement receiver noise meter according to the present invention;

[0018] Figure 5 This is a three-dimensional schematic diagram of the operating lever structure of a directional enhancement receiving noise meter according to the present invention;

[0019] Figure 6 This utility model relates to a directional enhancement receiver noise meter. Figure 4 A magnified 3D schematic diagram of the structure at point A;

[0020] Figure 7 This is a three-dimensional schematic diagram of the semi-circular ring structure of a directional enhancement receiver noise meter according to the present invention.

[0021] In the diagram: 1-First protective shell, 2-Second protective shell, 3-Connecting shaft, 4-Noise receiver, 5-Circular ring, 6-Semi-circular ring, 7-Long groove, 8-Short groove, 9-Transparent plate, 10-Rectangular groove, 11-Transparent tough membrane, 12-Operating lever, 13-Noise meter body, 14-First magnetic block, 15-Second magnetic block, 16-Card slot, 17-Semi-circular groove, 18-Positioning hole, 19-Positioning post, 20-L-shaped iron rod, 21-Toggle lever, 22-Round rod, 23-First spring, 24-Circular magnetic sheet, 25-L-shaped clamping lever, 26-Slider, 27-Square plate, 28-Limiting cover, 29-Second spring, 30-First guide rod, 31-Third spring, 32-Second guide rod, 33-Arc-shaped groove. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-7This utility model provides a technical solution: a directional enhancement receiving noise meter, including a first protective shell 1, a second protective shell 2, an operating rod 12, and a noise meter body 13. The first protective shell 1 has short grooves 8 on both its front and rear sides, and long grooves 7 on both its front and rear sides, and a connecting shaft 3 is rotatably mounted above the connecting pipe of the noise meter body 13. A ring 5 is fixedly sleeved on the lower outer side of the connecting shaft 3. An L-shaped locking rod 25 is fixed to the right rear side of the operating rod 12. A second guide rod 32 and a third spring 31 are fixed to the left rear side of the operating rod 12. A slider 26 is slidably sleeved on the outer side of the second guide rod 32. The rear end of the third spring 31 is fixed to the slider 26. A first guide rod 30 and a second spring 29 are fixed at the left end. A square plate 27 is slidably sleeved on the outside of the first guide rod 30. The left end of the second spring 29 is fixed to the square plate 27. A round rod 22 is slidably installed on the right end above the ring 5. A round magnetic piece 24 is fixed at the upper end of the round rod 22. A positioning post 19 is fixed at the lower end of the round rod 22. An L-shaped iron rod 20 is fixed on the right end above the ring 5. This design solves the problem that the original device's integrated protective shell was difficult to disassemble, making internal maintenance and calibration extremely inconvenient. Secondly, the rotation adjustment of the noise receiver lacks effective locking, and it is easy to deflect due to external force during measurement, and it is impossible to perform accurate angle positioning, which seriously affects the stability of the measurement and the reliability of the data.

[0024] In the first embodiment of this utility model: a first spring 23 is fixed below the circular magnetic sheet 24, and the lower end of the first spring 23 is fixed to the circular ring 5. A lever 21 is fixed to the right side of the circular magnetic sheet 24. The elastic force of the first spring 23 can automatically press the positioning post 19 into the positioning hole 18 to ensure reliable locking. The lever 21 provides a clear operating point. Simply move the lever 21 to lift the positioning post 19 and easily unlock it to adjust the angle. The operation is very intuitive and convenient.

[0025] Each of the multiple short slots 8 has a slot 16 inside. First magnetic blocks 14 are embedded in the left sides of both the upper and lower ends of the first protective shell 1, and second magnetic blocks 15 are embedded in the right sides of both the upper and lower ends of the second protective shell 2. Semicircular slots 17 are respectively provided in the upper middle part of the first protective shell 1 and the upper middle part of the second protective shell 2. The slots 16 cooperate with the L-shaped locking rod 25 of the operating lever 12 to achieve mechanical locking and prevent the shell from accidentally popping open. The first magnetic blocks 14 and the second magnetic blocks 15 attract each other, providing initial pre-tightening force when the shell is closed, assisting in rapid positioning, and further enhancing the overall integrity of the shell closure. When the first protective shell 1 and the second protective shell 2 are closed, the two semicircular slots 17 form a complete circular channel, preventing collision and interference between the first protective shell 1 and the second protective shell 2 and the connecting pipe above the noise meter body 13.

[0026] As a second embodiment of this utility model: Semicircular rings 6 are fixed to the upper middle portion of the first protective shell 1 and the upper middle portion of the second protective shell 2, respectively. Multiple positioning holes 18 are provided through the upper part of each semicircular ring 6. Arc-shaped grooves 33 are provided at both ends of each semicircular ring 6. When the two semicircular rings 6 are closed, they form a complete perforated ring. The multiple positioning holes 18 on the ring provide multiple preset, fixed angle settings. This allows the user to quickly and accurately lock the noise receiver 4 to a commonly used angle, ensuring the repeatability and comparability of the measurement results.

[0027] Transparent plates 9 are respectively provided on the front sides of the first protective shell 1 and the second protective shell 2. Rectangular slots 10 are respectively provided through the front sides of the two transparent plates 9. Transparent flexible membranes 11 are fixed inside the two rectangular slots 10. Users can directly read the display data of the noise meter body 13 through the transparent plates 9 and may observe the internal status indicator lights, greatly improving ease of use. The transparent flexible membranes 11 seal the rectangular slots 10, preventing dust from entering. At the same time, their flexibility allows users to press the physical buttons on the noise meter body 13 through the membrane, improving the instrument's environmental adaptability and protection level. A noise receiver 4 is provided at the other end of the connecting shaft 3. By rotating the connecting shaft 3, the orientation of the noise receiver 4 can be changed, thereby aligning it with the noise source to achieve enhanced reception and measurement of noise from a specific direction.

[0028] Multiple operating levers 12 are provided, and multiple sliders 26 are slidably installed in multiple long slots 7 respectively. Multiple square plates 27 are fixed in multiple long slots 7 respectively. The provision of multiple operating levers 12 can ensure that the force is uniform and the closure is tight when the first protective shell 1 and the second protective shell 2 are locked and closed, avoiding the problem of loosening that may occur when locking at a single point, and greatly improving reliability.

[0029] As a third embodiment of this utility model: In use, first pull up the lever 21. At this time, the round rod 22 drives the positioning post 19 to move upward, thereby causing the positioning post 19 to disengage from the corresponding positioning hole 18. At this time, the first spring 23 is in a stretched state, and the round magnetic piece 24 contacts the L-shaped iron rod 20. The round magnetic piece 24 attracts the L-shaped iron rod 20, thereby keeping the positioning post 19 disengaged from the corresponding positioning hole 18. There is no need to continuously apply external force to maintain the position of the positioning post 19. Then, the connecting shaft 3 can be rotated to adjust the position of the noise receiver 4. When the position of the noise receiver 4 is adjusted appropriately, the positioning post 19 is aligned with the corresponding positioning hole 18. Then, press the lever 21 to separate the round magnetic piece 24 from the L-shaped iron rod 20. The first spring 23 returns to its original position, causing the positioning post 19 to insert into the corresponding positioning hole 18, thus absorbing the noise. The receiver 4 is locked in position. Then, the operator can press the button on the noise meter body 13 through the transparent tough membrane 11 to perform the operation. When it is necessary to remove the first protective shell 1 and the second protective shell 2, the handle on the front of the operating lever 12 is used to move the operating lever 12 to the right, so that the L-shaped locking rod 25 is disengaged from the slot 16. At this time, the slider 26 slides, the first guide rod 30 slides along the square plate 27, and the second spring 29 is stretched. Then, the operating lever 12 is pulled forward, so that the second guide rod 32 is extended and the third spring 31 is stretched, so that the L-shaped locking rod 25 is disengaged from the short slot 8. Then, the second spring 29 is controlled to slowly reset, ensuring that the L-shaped locking rod 25 moves to a certain position and that when the third spring 31 drives the operating lever 12 to reset, the L-shaped locking rod 25 will not enter the short slot 8.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A directional enhanced receiving noise meter comprising a first protective shell (1), a second protective shell (2), an operating lever (12) and a noise meter body (13), characterized in that: The first protective shell (1) has short grooves (8) on both the front and rear sides and the upper and lower ends. The second protective shell (2) has long grooves (7) on both the front and rear sides and the upper and lower ends. A connecting shaft (3) is rotatably installed above the connecting pipe of the noise meter body (13). A ring (5) is fixedly sleeved on the lower outer side of the connecting shaft (3). An L-shaped locking rod (25) is fixed on the right rear side of the operating rod (12). A second guide rod (32) and a third spring (31) are fixed on the left rear side of the operating rod (12). A slider (26) is slidably sleeved on the outer side of the second guide rod (32). The rear end of the third spring (31) is fixed to the slider (26). The left end of the slider (26) is fixed with a first guide rod (30) and a second spring (29). A square plate (27) is slidably sleeved on the outside of the first guide rod (30). The left end of the second spring (29) is fixed to the square plate (27). A round rod (22) is slidably installed on the upper right end of the ring (5). A round magnetic piece (24) is fixed on the upper end of the round rod (22). A positioning post (19) is fixed on the lower end of the round rod (22). An L-shaped iron rod (20) is fixed on the upper right end of the ring (5).

2. A directional enhancement receive noise meter according to claim 1, wherein: A first spring (23) is fixed below the circular magnetic sheet (24), and the lower end of the first spring (23) is fixed to the ring (5). A lever (21) is fixed to the right side of the circular magnetic sheet (24).

3. A directional enhancement receiver noise meter according to claim 1, wherein: Each of the short slots (8) has a slot (16) inside. The first protective shell (1) has a first magnetic block (14) embedded on the left side of both the upper and lower ends. The second protective shell (2) has a second magnetic block (15) embedded on the right side of both the upper and lower ends. The first protective shell (1) and the second protective shell (2) have semi-circular slots (17) respectively in the upper middle part.

4. A directional enhancement receive noise meter according to claim 1, wherein: A semi-circular ring (6) is fixed to the upper middle part of the first protective shell (1) and the upper middle part of the second protective shell (2), and multiple positioning holes (18) are provided through the upper part of the two semi-circular rings (6). Arc grooves (33) are provided at the left and right ends of the two semi-circular rings (6).

5. A directional enhancement receiver noise meter according to claim 4, characterized in that: A transparent plate (9) is provided on the front side of the first protective shell (1) and the front side of the second protective shell (2). A rectangular groove (10) is provided through the front side of the two transparent plates (9). A transparent tough membrane (11) is fixed inside the two rectangular grooves (10).

6. A directional enhancement receiver noise meter according to claim 1, characterized in that: The other end of the connecting shaft (3) is equipped with a noise receiver (4).

7. A directional enhancement receiver noise meter according to claim 1, characterized in that: The operating lever (12) is provided in multiple ways, and multiple sliders (26) are slidably installed in multiple long slots (7) respectively, and multiple square plates (27) are fixed in multiple long slots (7) respectively.

Images