Sound level meter

Abstract

The utility model relates to the technical field of sound level meters, and discloses a sound level meter which comprises an outer cylinder, a sound level meter body is fixedly mounted at the upper end of the outer cylinder, two positioning holes are uniformly formed in the front surface of the outer cylinder, a movable seat is arranged in the inner side of the outer cylinder, and three mounting seats are fixedly mounted at the bottom of the movable seat; by means of the retractable supporting legs and the movable seat, the supporting legs are unfolded in the using process, stable supporting is provided for the sound level meter, the accuracy of the measurement result is ensured, a stable triangular supporting structure is formed after the supporting legs are unfolded, interference of external factors on measurement is effectively reduced, the sound level meter can conduct reliable measurement work in various environments, and the measurement efficiency is improved. When the sound level meter is not used, the supporting legs can be rapidly folded, at the moment, the size of the sound level meter is greatly reduced, a user can conveniently carry the sound level meter to different places for measurement, and the problems that a traditional support type sound level meter is large in size and inconvenient to carry are solved through cooperation of the straps.

Description

Technical Field

[0001] This application relates to the field of sound level meter technology, and particularly relates to a sound level meter. Background Art

[0002] In modern society, the problem of noise pollution has become an increasingly prominent environmental issue, affecting people's quality of life and physical health. In various noise monitoring and control, as an important measurement tool, the usage frequency and demand of sound level meters have also increased significantly. Currently, sound level meters are mainly divided into two types: handheld and bracket-mounted. Handheld sound level meters are small in size and easy to operate, very suitable for mobile measurements in a short time, but their measurement accuracy and stability are relatively low. Bracket-mounted sound level meters, on the other hand, have higher measurement accuracy and stability and are suitable for long-term noise monitoring.

[0003] Traditional bracket-mounted sound level meters are usually designed to be bulky, containing multiple components and accessories, occupying a large space. Due to their large size and heavy weight, current bracket-mounted sound level meters are often not suitable for frequent transfer and carrying, which increases the labor intensity when measurements need to be taken at different locations. Therefore, we urgently need to provide a sound level meter.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0005] In order to solve the problem that current bracket-mounted sound level meters are often not suitable for frequent transfer and carrying due to their large size and heavy weight, which increases the labor intensity when measurements need to be taken at different locations, this application provides a sound level meter.

[0006] A sound level meter provided by this application adopts the following technical solution:

[0007] A sound level meter includes an outer cylinder, on the upper end of which a sound level meter body is fixedly installed. Two positioning holes are evenly opened on the front surface of the outer cylinder. An activity seat is arranged inside the outer cylinder. Three mounting seats are fixedly installed at the bottom of the activity seat. Support legs are hingedly connected inside each mounting seat. A hole slot is opened on the side of the activity seat. A return spring is fixedly installed inside the hole slot. One end of the return spring close to the outside is fixedly installed with a pressing block, and the pressing block is connected to the inside of the positioning hole. Two slide rails are symmetrically opened on the inside of the outer cylinder. Two sliders are fixedly installed at both ends of the activity seat, and the two sliders are slidably connected inside the slide rails. A shoulder strap is fixedly installed on the surface of the outer cylinder.

[0008] Preferably, spikes are fixedly installed at the bottoms of the three support legs, and when the three support legs are unfolded, they support the bottom of the outer cylinder in a triangular shape.

[0009] Preferably, a concave seat is fixedly installed at the upper end of the outer cylinder, a connecting plate is hinged inside the concave seat, and the other end of the connecting plate is connected to a protective cover.

[0010] Preferably, the protective cover is arranged outside the sound level meter body, a first strong magnet is fixedly installed at the bottom of one end of the protective cover, and a support seat is fixedly installed at one end of the outer cylinder away from the concave seat.

[0011] Preferably, a second strong magnet is fixedly installed at the upper end of the support seat, and the first strong magnet is magnetically connected to the upper end of the second strong magnet.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] In the present utility model, through the retractable support legs and the movable seat, when in use, the support legs are unfolded to provide stable support for the sound level meter, ensuring the accuracy of the measurement results. After the support legs are unfolded, a stable triangular support structure is formed, effectively reducing the interference of external factors on the measurement, enabling the sound level meter to perform reliable measurement work in various environments. When not in use, the support legs can be quickly retracted, and at this time, the volume of the sound level meter is greatly reduced, facilitating the user to carry it to different locations for measurement. And through the cooperation with the shoulder strap, the problems of large volume and inconvenient carrying of the traditional bracket-type sound level meter are solved. Description of the Drawings

[0014] Figure 1 is a front view structural schematic diagram of the outer cylinder of the application embodiment;

[0015] Figure 2 is an overall unfolded structural schematic diagram of the application embodiment;

[0016] Figure 3 is a sectional structural schematic diagram of the inside of the outer cylinder of the application embodiment;

[0017] Figure 4 is an internal structural schematic diagram of the movable seat of the application embodiment.

[0018] Description of the reference numerals: 1. Outer cylinder; 2. Sound level meter body; 3. Shoulder strap; 4. Positioning hole; 5. Movable seat; 6. Mounting seat; 7. Support leg; 8. Plug; 9. Slide rail; 10. Slide block; 11. Hole groove; 12. Return spring; 13. Pressing block; 14. Concave seat; 15. Connecting plate; 16. Protective cover; 17. First strong magnet; 18. Support seat; 19. Second strong magnet. Detailed Description of the Embodiment

[0019] The following will further describe the present application in detail Figures 1-4 with reference to the attached

[0020] An embodiment of the present application discloses a sound level meter. Refer to Figures 1-4 , which includes an outer cylinder 1. A sound level meter body 2 is fixedly installed at the upper end of the outer cylinder 1. Two positioning holes 4 are evenly opened on the front surface of the outer cylinder 1. An activity seat 5 is arranged inside the outer cylinder 1. Three mounting seats 6 are fixedly installed at the bottom of the activity seat 5. Support legs 7 are hinged inside the mounting seats 6. The inner sides of the mounting seats 6 are inclined planes, which play a limiting role on the outer sides of the support legs 7 to ensure that the support legs 7 can be accurately positioned when unfolded. A hole groove 11 is opened on the side of the activity seat 5. A return spring 12 is fixedly installed inside the hole groove 11. One end of the return spring 12 close to the outside is fixedly installed with a pressing block 13. The pressing block 13 is connected to the inner side of the positioning hole 4, and the activity seat 5 can be fixed at different positions. When the pressing block 13 is inserted into the positioning hole 4, when the pressing block 13 is connected to the upper positioning hole 4, the support legs 7 are stored. On the contrary, when it is connected to the bottom positioning hole 4, the support legs 7 are unfolded. Through the retractable support legs 7 and the activity seat 5, when not in use, the support legs 7 can be quickly retracted. At this time, the volume of the sound level meter is greatly reduced, which is convenient for users to carry it to different places for measurement, and solves the problem that the traditional bracket-type sound level meter has a large volume and is inconvenient to carry. Two slide rails 9 are symmetrically opened inside the outer cylinder 1. Two sliders 10 are fixedly installed at both ends of the activity seat 5. The two sliders 10 are slidably connected inside the slide rails 9, making the activity seat 5 slide up and down more smoothly and ensuring the operation accuracy of the unfolding and retracting of the support legs 7. A shoulder strap 3 is fixedly installed on the surface of the outer cylinder 1. The design of the shoulder strap 3 enables the user to carry the sound level meter on the back, which is convenient for other operations and improves work efficiency.

[0021] Refer to Figures 1-4 , spikes 8 are fixedly installed at the bottoms of the three support legs 7. The setting of the spikes 8 can increase the friction between the support legs 7 and the ground, further improving the stability of the sound level meter. Especially on some uneven ground, it can better ensure the smooth progress of the measurement work. When the three support legs 7 are unfolded, they support the bottom of the outer cylinder 1 in a triangular shape, making the sound level meter be placed more stably on the ground during use and improving the measurement accuracy. A concave seat 14 is fixedly installed at the upper end of the outer cylinder 1. A connecting plate 15 is hinged inside the concave seat 14. The other end of the connecting plate 15 is connected to a protective cover 16. The protective cover 16 is arranged outside the sound level meter body 2, which can effectively protect the sound level meter body 2 from being collided and damaged by external objects and extend the service life of the sound level meter. A first strong magnet 17 is fixedly installed at the bottom of one end of the protective cover 16. A support seat 18 is fixedly installed at the end of the outer cylinder 1 far from the concave seat 14. A second strong magnet 19 is fixedly installed at the upper end of the support seat 18. The first strong magnet 17 is magnetically connected to the upper end of the second strong magnet 19. The first strong magnet 17 and the second strong magnet 19 are set as opposite-sex magnets, so that the protective cover 16 can be tightly adsorbed on the outer cylinder 1 to provide reliable protection for the sound level meter body 2.

[0022] The implementation principle of a sound level meter according to an embodiment of the present application is as follows: During specific use, press the pressing block 13 to compress the return spring 12 and disengage from the positioning hole 4, and then pull the movable seat 5 downward to make the slider 10 slide within the slide rail 9 until the support leg 7 is fully extended. At this time, the peg 8 at the bottom of the support leg 7 is inserted into the ground to stably support the outer cylinder 1 in a triangular support manner. After the measurement is completed, push the movable seat 5 upward to make the pressing block 13 snap into another positioning hole 4 under the action of the return spring 12, thereby retracting the support leg 7. When carrying the sound level meter, it can be carried on the body through the shoulder strap 3. When it is necessary to use the sound level meter body 2, open the protective cover 16 to make it rotate around the concave seat 14 through the connecting plate 15. After the measurement is completed, cover the protective cover 16 to magnetically connect the first strong magnet 17 to the upper end of the second strong magnet 19, thereby protecting the sound level meter body 2.

[0023] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms such as "upper", "lower", "left", and "right" are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0024] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0026] The above are all the preferred embodiments of the present application and do not limit the protection scope of the present application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A sound level meter, comprising an outer cylinder (1), characterized in that: A sound level meter body (2) is fixedly mounted on the upper end of the outer tube (1); two positioning holes (4) are evenly arranged on the front surface of the outer tube (1); a movable seat (5) is arranged inside the inner side of the outer tube (1); three mounting seats (6) are fixedly mounted on the bottom of the movable seat (5); the inner sides of the mounting seats (6) are hingedly connected with support legs (7); a hole groove (11) is arranged on the side of the movable seat (5); a return spring (12) is fixedly mounted inside the hole groove (11); a pressing block (13) is fixedly mounted on the outer end of the return spring (12); the pressing block (13) is connected to the inner side of the positioning hole (4); two slide rails (9) are symmetrically arranged on the inner side of the outer tube (1); two sliders (10) are fixedly mounted on the two ends of the movable seat (5); the two sliders (10) are slidably connected to the inside of the slide rails (9); and a shoulder strap (3) is fixedly mounted on the surface of the outer tube (1).

2. A sound level meter according to claim 1, characterized in that: The bottoms of the three support legs (7) are fixedly mounted with insert pins (8), and when the three support legs (7) are unfolded, they are supported at the bottom of the outer cylinder (1) in a triangular shape.

3. A sound level meter according to claim 1, characterized in that: A concave seat (14) is fixedly mounted on the upper end of the outer cylinder (1), a connecting plate (15) is hingedly connected to the inner side of the concave seat (14), and a protective cover (16) is interlockedly connected to the other end of the connecting plate (15).

4. A sound level meter according to claim 3, characterized in that: The protective cover (16) is arranged outside the sound level meter body (2), a first strong magnet (17) is fixedly mounted on the bottom of one end of the protective cover (16), and a support seat (18) is fixedly mounted on one end of the outer cylinder (1) away from the concave seat (14).

5. A sound level meter according to claim 4, characterized in that: A second strong magnet (19) is fixedly mounted on the upper end of the support seat (18), and the first strong magnet (17) is magnetically connected to the upper end of the second strong magnet (19).

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