High response speed noise decibel meter

Abstract

The utility model relates to the technical field of noise measurement, specifically a high-response speed noise decibel meter, including a fixed plate and a decibel meter body, a protective pad is installed at the bottom of the fixed plate, a first mounting ring and a second mounting ring are hinged on both sides of the bottom of the protective pad, an elastic band is installed on the outside of the first mounting ring, a round felt and a thorny felt are installed on one side of the elastic band, a support frame is movably installed on the top of the fixed plate, a mounting groove is provided on the top of the support frame, sliding grooves are provided on both sides of the mounting groove, slide plates are installed on both sides of the decibel meter body, the decibel meter body is movably installed in the mounting groove, and a limit rotating rod is installed on both sides of the top of the support frame. The utility model can flexibly fix the decibel meter body on the arm of the operator, while not affecting the normal use of the decibel meter body, and also liberates the hands of the operator, reducing the burden on the operator.

Description

Technical Field

[0001] The utility model relates to the technical field of noise measurement, in particular to a high-reaction-speed noise decibel meter. Background Art

[0002] The decibel meter, also known as the sound level meter, is the most basic noise measuring instrument. It is an electronic instrument, but different from objective electronic instruments such as voltmeters, it can simulate the time characteristics of the human ear's response speed to sound waves when converting sound signals into electrical signals. It has characteristics of different sensitivities and intensity characteristics of changing characteristics at different loudnesses. A high-reaction-speed noise decibel meter means that the decibel meter can detect noise levels very quickly.

[0003] The existing noise decibel meter is operated by the staff during the whole process of use, which is very inconvenient. When the operator needs to use both hands, he cannot free up both hands. In addition, the handheld decibel meter may slip out of the hand, causing damage to the decibel meter and affecting the effect of noise detection.

[0004] For this purpose, a high-response speed noise decibel meter is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a high-response speed noise decibel meter to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-response speed noise decibel meter, comprising a fixed plate and a decibel meter body, a protective pad is installed at the bottom of the fixed plate, a first mounting ring and a second mounting ring are hinged on both sides of the bottom of the protective pad, an elastic band is installed on the outer side of the first mounting ring, a round felt and a bristle felt are installed on one side of the elastic band, a support frame is movably installed on the top of the fixed plate, a mounting groove is opened on the inner top of the support frame, sliding grooves are opened on both sides of the mounting groove, slide plates are installed on both sides of the decibel meter body, the decibel meter body is movably installed in the mounting groove, and a limiting rotary rod is installed on both sides of the top of the support frame.

[0006] Preferably, a sound transmission tube is installed on the top of the decibel meter body, and a sponge ball is installed on the top of the sound transmission tube, and a control panel and a display screen are installed on one side of the decibel meter body.

[0007] Preferably, a second cavity is opened inside the fixing plate, a first gear and a second gear are installed inside the second cavity, and the first gear and the second gear are connected by tooth meshing.

[0008] Preferably, the output end of the first gear is connected to the rotating shaft at the bottom of the mounting groove, a first cavity is opened inside the fixing plate, and a transmission rod is installed inside the first cavity.

[0009] Preferably, a knob is installed on one side of the fixing plate, and the output end of the knob extends into the first cavity and is connected to one end of the transmission rod, and one end of the transmission rod extends into the second cavity and is connected to the second gear.

[0010] Preferably, a support rod is installed on both sides of the top of the fixing plate respectively, and an annular limiting groove is opened at the bottom of the support frame, and the top of the support rod is slidably installed inside the annular limiting groove.

[0011] Compared with the prior art, the utility model provides a high-response speed noise decibel meter, which has the following

[0012] Beneficial effects:

[0013] By providing a protective pad, a fixing plate, an elastic strap, a second mounting ring, a round felt, a prickly felt, a mounting groove, a decibel meter body and a support frame, the groove at the bottom of the protective pad is placed on the operator's arm, and then the elastic strap is passed through the inside of the second mounting ring to connect the round felt with the prickly felt, so that the entire fixing plate can be fixed on the operator's arm. Subsequently, the decibel meter body is installed inside the mounting groove, and then the limiting rotary rod is rotated so that one end of the limiting rotary rod limits the two sides of the top of the decibel meter body to prevent the decibel meter body from being pulled out of the mounting groove. Through this device, the decibel meter body can be flexibly fixed on the operator's arm without affecting the normal use of the decibel meter body, freeing the operator's hands and reducing the burden on the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the fixing plate of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the main body of the decibel meter of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view of the fixed plate of the utility model;

[0017] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1. fixing plate; 2. supporting frame; 3. sliding groove; 4. mounting groove; 5. first gear; 6. knob; 7. first cavity; 8. transmission rod; 9. pad; 10. first mounting ring; 11. elastic strap; 12. round felt; 13. bristle felt; 14. second gear; 15. second cavity; 16. second mounting ring; 17. decibel meter body; 18. sliding plate; 19. control panel; 20. sound transmission tube; 21. sponge ball; 22. display screen; 23. annular limit groove; 24. supporting rod; 25. limit rotary rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1: A protective pad 9 is installed at the bottom of the fixed plate 1, and a first mounting ring 10 and a second mounting ring 16 are hinged on both sides of the bottom of the protective pad 9, an elastic band 11 is installed on the outer side of the first mounting ring 10, and a round felt 12 and a prickly felt 13 are installed on one side of the elastic band 11. A support frame 2 is movably installed on the top of the fixed plate 1, and a mounting groove 4 is opened on the top of the inner part of the support frame 2, and sliding grooves 3 are opened on both sides of the mounting groove 4, respectively. Slide plates 18 are installed on both sides of the decibel meter body 17, and the decibel meter body 17 is movably installed in the inner part of the mounting groove 4, and a limit rotary rod 25 is installed on both sides of the top of the support frame 2.

[0021] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, since a pad 9 is installed at the bottom of the fixing plate 1, the pad 9 can be used to fix the operator's arm. The groove at the bottom of the pad 9 is placed on the operator's arm, and then the elastic band 11 is passed through the inside of the second mounting ring 16 to connect the round felt 12 with the prickly felt 13, so that the entire fixing plate 1 can be fixed on the operator's arm. Then, the decibel meter body 17 is inserted into the mounting groove 4 opened at the top of the support frame 2 through two installed slide plates 18. The entire decibel meter body 17 can be fixed inside the support frame 2 by inserting the slide plates 18 installed on both sides of the decibel meter body 17 into the slide groove 3 respectively. Then, by rotating the limiting rotary rod 25, one end of the limiting rotary rod 25 limits the two sides of the top of the decibel meter body 17 to prevent the decibel meter body 17 from being scratched out of the mounting groove 4. Through this device, the decibel meter body 17 can be flexibly fixed on the operator's arm without affecting the normal use of the decibel meter body 17, and the operator's hands are liberated, thereby reducing the burden on the operator.

[0022] Embodiment 2: A sound transmission tube 20 is installed on the top of the decibel meter body 17, and a sponge ball 21 is installed on the top of the sound transmission tube 20. A control panel 19 and a display screen 22 are installed on one side of the decibel meter body 17. A second cavity 15 is opened inside the fixed plate 1, and a first gear 5 and a second gear 14 are installed inside the second cavity 15, and the first gear 5 and the second gear 14 are connected by tooth meshing. The output end of the first gear 5 is connected to the rotating shaft at the bottom of the mounting groove 4. A first cavity 7 is opened inside the fixed plate 1, and a transmission rod 8 is installed inside the first cavity 7. A knob 6 is installed on one side of the fixed plate 1, and the output end of the knob 6 extends into the first cavity 7 and is connected to one end of the transmission rod 8, and one end of the transmission rod 8 extends into the second cavity 15 and is connected to the second gear 14. A support rod 24 is installed on both sides of the top of the fixed plate 1, and an annular limiting groove 23 is opened at the bottom of the support frame 2, and the top of the support rod 24 is slidably installed inside the annular limiting groove 23.

[0023] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, noise can be collected by the sponge ball 21, and then transmitted to the inside of the decibel meter body 17 through the sound transmission tube 20 for detection. The detection result can be displayed on the display screen 22 for the convenience of the operator to view. The transmission rod 8 can be driven to rotate by rotating the knob 6. When the transmission rod 8 rotates, it will drive the second gear 14 to rotate. When the second gear 14 rotates, it will drive the first gear 5 to rotate. When the first gear 5 rotates, it will drive the entire support frame 2 to rotate, thereby adjusting the direction of noise collection by the decibel meter body 17, and improving the flexibility of the decibel meter body 17 after it is installed above the fixed plate 1. When the support frame 2 rotates, the support rods 24 installed on both sides of the top of the fixed plate 1 will slide in the annular limit groove 23, thereby ensuring the stability of the support frame 2 during rotation.

[0024] Working principle: When in use, place the groove at the bottom of the pad 9 on the operator's arm, then pass the elastic band 11 through the inside of the second mounting ring 16, connect the round felt 12 with the prickly felt 13, and then fix the entire fixing plate 1 on the operator's arm, then insert the decibel meter body 17 into the mounting groove 4 opened on the top of the support frame 2 through the two installed slides 18, and fix the entire decibel meter body 17 inside the support frame 2 by inserting the slides 18 installed on both sides of the decibel meter body 17 into the slide groove 3 respectively, and then rotate the limit rotary rod 25 so that one end of the limit rotary rod 25 limits the two sides of the top of the decibel meter body 17 to prevent the decibel meter body 17 from coming out of the mounting groove 4 It is shown that the decibel meter body 17 can be flexibly fixed on the operator's arm through the device, the noise can be collected through the sponge ball 21, and then transmitted to the inside of the decibel meter body 17 through the sound tube 20 for detection, and the detection result can be displayed on the display screen 22 for the convenience of the operator to view, and the transmission rod 8 can be driven to rotate by rotating the knob 6. When the transmission rod 8 rotates, it will drive the second gear 14 to rotate. When the second gear 14 rotates, it will drive the first gear 5 to rotate. When the first gear 5 rotates, it will drive the entire support frame 2 to rotate, thereby adjusting the direction of noise collection by the decibel meter body 17, and improving the flexibility of the decibel meter body 17 when it is installed above the fixed plate 1.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-response noise decibel meter, comprising a fixing plate (1) and a decibel meter body (17), characterized in that: A protective pad (9) is installed at the bottom of the fixing plate (1), and a first mounting ring (10) and a second mounting ring (16) are hinged on both sides of the bottom of the protective pad (9), an elastic band (11) is installed on the outer side of the first mounting ring (10), and a round felt (12) and a bristle felt (13) are installed on one side of the elastic band (11). A support frame (2) is movably installed on the top of the fixing plate (1), a mounting groove (4) is provided at the top of the support frame (2), and sliding grooves (3) are provided on both sides of the mounting groove (4), and slide plates (18) are installed on both sides of the decibel meter body (17), and the decibel meter body (17) is movably installed inside the mounting groove (4). A limit rotating rod (25) is installed on both sides of the top of the support frame (2).

2. The high-response speed noise decibel meter according to claim 1, characterized in that: A sound transmission tube (20) is installed on the top of the decibel meter body (17), and a sponge ball (21) is installed on the top of the sound transmission tube (20). A control panel (19) and a display screen (22) are installed on one side of the decibel meter body (17).

3. The high-response speed noise decibel meter according to claim 1, characterized in that: A second cavity (15) is provided inside the fixing plate (1), a first gear (5) and a second gear (14) are installed inside the second cavity (15), and the first gear (5) and the second gear (14) are connected via tooth meshing.

4. The high-response speed noise decibel meter according to claim 3, characterized in that: The output end of the first gear (5) is connected to the rotating shaft at the bottom of the mounting groove (4); a first cavity (7) is provided inside the fixing plate (1), and a transmission rod (8) is installed inside the first cavity (7).

5. The high-response speed noise decibel meter according to claim 3, characterized in that: A knob (6) is mounted on one side of the fixing plate (1), and an output end of the knob (6) extends into the first cavity (7) and is connected to one end of a transmission rod (8), and one end of the transmission rod (8) extends into the second cavity (15) and is connected to a second gear (14).

6. The high-response speed noise decibel meter according to claim 1, characterized in that: A support rod (24) is respectively installed on both sides of the top of the fixing plate (1), and an annular limiting groove (23) is provided at the bottom of the support frame (2), and the top of the support rod (24) is slidably installed inside the annular limiting groove (23).

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