A fixable multi-functional sound level meter

Abstract

The present invention discloses a fixed multi-functional sound level meter, which relates to the technical field of sound level meters. The fixed multi-functional sound level meter includes a sound level meter housing and a preamplifier installed on the top surface of the sound level meter housing. A test microphone is installed on the top surface of the preamplifier. A fixing mechanism is installed on the outer surface of the sound level meter housing, and a protection mechanism is installed on the outer surface of the test microphone. In the present invention, a bracket structure is formed by the support side plate and the bottom fixing plate. The fixing bottom can be placed on a plane, and the sound level meter housing can be placed on the plane through the bracket structure. The first cylinder and the second cylinder are separated from each other, the first buckle is engaged with the second buckle, and the first buckle is engaged with the second buckle seat, so that the two traction ropes are cross-fixed on the outside of the support side plate, and the inclination angle of the support side plate is fixed, making the installation structure more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of sound level meters, and particularly to a fixable multifunctional sound level meter. Background Art

[0002] A sound level meter, also known as a noise meter, is an instrument used to measure the sound pressure level or sound level of sound. It is the most basic and commonly used instrument in acoustic measurements. With the development of the national economy and the improvement of people's material and cultural living standards, noise censuses and environmental protection work have been carried out comprehensively. The machinery manufacturing industry has regarded noise as one of the important quality indicators of products. Buildings such as auditoriums and gymnasiums not only require beautiful shapes but also pursue good sound effects. All these have made the application of sound level meters more and more extensive. It is not only used in acoustic and electroacoustic measurements, but also has been widely applied in various fields such as machinery manufacturing, architectural design, transportation, environmental protection, medical and health, and national defense projects, becoming an acoustic measurement instrument that almost all departments must possess.

[0003] According to relevant national regulations, motor vehicles need to conduct noise detection, and the measurement methods and instruments used are specified. For the noise detection of new cars by automobile manufacturers, in accordance with relevant regulations, at a position 2 meters in front of the car and 1.2 meters above the ground, a sound level meter is used for measurement. Therefore, the sound level meter needs to be supported and fixed at this verification position. However, the existing sound level meters generally require manual assistance and do not have a positioning structure, and need to cooperate with other structures for fixation. The existing fixation structures generally use screws and other fittings, with complex operations and difficult real-time position adjustment. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a fixable multifunctional sound level meter, which solves the problems that the existing sound level meters generally require manual assistance, do not have a positioning structure, need to cooperate with other structures for fixation, and the existing fixation structures generally use screws and other fittings, with complex operations and difficult real-time position adjustment.

[0006] Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A fixable multifunctional sound level meter, including a sound level meter housing and a preamplifier installed on the top surface of the sound level meter housing. A test microphone is installed on the top surface of the preamplifier. A fixable mechanism is installed on the outer surface of the sound level meter housing, and the fixable mechanism is used to fixedly install the sound level meter housing in various occasions. A protection mechanism is installed on the outer surface of the test microphone, and the protection mechanism can protect the test microphone and can be used as a hanging installation structure.

[0008] Preferably, the fixable mechanism includes a support fixing component and a flipping fixing component. The support fixing component is installed on one side surface of the sound level meter housing, and the flipping fixing component is installed on the outer surface of the support fixing component.

[0009] Preferably, the support fixing component includes a support side plate and a movable shaft. The movable shaft is movably installed on one side surface of the sound level meter housing, the support side plate is installed on the outer surface of the movable shaft, and protective side plates are installed on the outer two side surfaces of the support side plate.

[0010] Preferably, the flipping fixing component includes a flipping shaft and a bottom fixing plate. The flipping shaft is movably installed on the bottom surface of the support side plate, the bottom fixing plate is installed on the outer surface of the flipping shaft, a limiting insertion shaft is installed on one side surface of the bottom fixing plate, and a fixing slot corresponding to the limiting insertion shaft is formed on the bottom surface of the sound level meter housing.

[0011] Preferably, the limiting insertion shaft includes a fixed ball shaft and an installation insertion shaft. The installation insertion shaft is installed on one side surface of the bottom fixing plate, two fixed ball shafts are respectively installed on the outer surface of the installation insertion shaft, and a rubber insertion shaft is installed on the outer surface of the installation insertion shaft.

[0012] Preferably, the protection mechanism includes a protection component and a positioning connection component. The protection component is installed on the outer surface of the test microphone, and the positioning connection component is installed on the outer surface of the protection component.

[0013] Preferably, the protection component includes a first cylinder and a second cylinder. Both the first cylinder and the second cylinder are movably sleeved on the outer surface of the test microphone. A magnetic attraction block is installed on the outer surface of the first cylinder, a fixed iron sheet is installed on the outer surface of the second cylinder, the magnetic attraction block and the fixed iron sheet are in movable contact, and traction ropes are installed on the bottom surfaces of both the first cylinder and the second cylinder. The end surfaces of the traction ropes are connected to the outer surface of the sound level meter.

[0014] Preferably, the positioning connection component includes a first buckle seat and a first buckle. Flexible patches are installed on the top surfaces of both the first cylinder and the second cylinder. The first buckle seat is installed on the top surface of any one of the flexible patches, the first buckle is installed on the top surface of the other flexible patch, and the first buckle seat and the first buckle are used in cooperation.

[0015] Preferably, a second buckle seat and a second buckle are installed on the outer surface of the support side plate. The second buckle seat is used in cooperation with the first buckle, and the second buckle is used in cooperation with the first buckle seat.

[0016] Preferably, connectors are movably installed on the outer two side surfaces of the sound level meter housing, and an elastic binding band is installed between the two connectors.

[0017] Beneficial effects

[0018] The present invention has the following beneficial effects:

[0019] (1). When the fixed multi-functional sound level meter is used by hand, the supporting side plate contacts the outside of the sound level meter housing, and the bottom fixing plate contacts the bottom of the sound level meter housing. Through the fixed contact between the supporting side plate and the protective side plate and between the bottom fixing plate and the outside of the sound level meter housing, the strength of the sound level meter housing is enhanced. When in use, the user holds the outside of the supporting side plate and inserts the finger between the elastic binding band and the sound level meter housing, so as to conveniently hold the sound level meter housing. Then, the first cylinder body and the second cylinder body are pulled out to expose the test microphone for noise testing, and the operation is convenient.

[0020] (2). The fixed multi-functional sound level meter forms a bracket structure through the supporting side plate and the bottom fixing plate. The fixed bottom can be placed on a plane, and the sound level meter housing is placed on the plane through the bracket structure. The first cylinder body and the second cylinder body are separated from each other, the first buckle seat is engaged with the second buckle, and the first buckle is engaged with the second buckle seat, so that the two traction ropes are cross-fixed on the outside of the supporting side plate, and the inclination angle of the supporting side plate is fixed, making the installation structure more stable.

[0021] (3). When the sound level meter housing needs to be suspended and fixed, the first cylinder body and the second cylinder body are pulled out to expose the test microphone. Then, the first cylinder body and the second cylinder body are separated from each other, the traction rope is stretched, the traction rope is wound around the position to be suspended, and then the first buckle seat is engaged with the first buckle. The sound level meter housing is hoisted at the position to be suspended through the traction rope, which is convenient for measurement.

[0022] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Description of the drawings

[0023] Figure 1 It is a schematic diagram of the external structure of the front of the sound level meter housing of the present invention;

[0024] Figure 2 For the present invention Figure 2 Enlarged schematic diagram of the structure of part A in

[0025] Figure 3 It is a schematic diagram of the external structure of the side of the sound level meter housing of the present invention;

[0026] Figure 4 It is a schematic diagram of the external structure of the back of the sound level meter housing of the present invention;

[0027] Figure 5 It is a schematic diagram of the external structure of the back of the sound level meter housing from another angle of the present invention.

[0028] In the figure, 1 is the sound level meter housing; 2 is the preamplifier; 3 is the test microphone; 4 is the movable shaft; 5 is the supporting side plate; 6 is the protective side plate; 7 is the turning shaft; 8 is the bottom fixing plate; 9 is the limiting insertion shaft; 91 is the mounting insertion shaft; 92 is the fixed ball shaft; 93 is the rubber insertion shaft; 10 is the fixed slot; 11 is the first cylinder; 12 is the second cylinder; 13 is the magnetic attraction block; 14 is the fixed iron sheet; 15 is the traction rope; 16 is the first buckle seat; 17 is the first buckle; 18 is the second buckle seat; 19 is the second buckle; 20 is the connecting piece; 21 is the elastic binding band; 22 is the display screen; 23 is the control button; 24 is the flexible patch. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] Please refer to Figures 1-5 , the embodiments of the present invention provide a technical solution: a fixed multi-functional sound level meter, including a sound level meter housing 1 and a preamplifier 2 installed on the top surface of the sound level meter housing 1. A test microphone 3 is installed on the top surface of the preamplifier 2. A display screen 22 and control buttons 23 are installed on one side surface of the sound level meter housing 1. A fixing mechanism is installed on the outer surface of the sound level meter housing 1. The fixing mechanism is used to fixedly install the sound level meter housing 1 in various occasions. A protection mechanism is installed on the outer surface of the test microphone 3. The protection mechanism can protect the test microphone 3 and can be used as a hanging installation structure.

[0032] Specifically, the fixing mechanism includes a support fixing component and a flipping fixing component. The support fixing component is installed on one side surface of the sound level meter housing 1, and the flipping fixing component is installed on the outer surface of the support fixing component. The support fixing component includes a support side plate 5 and a movable shaft 4. The movable shaft 4 is movably installed on one side surface of the sound level meter housing 1, and the support side plate 5 is installed on the outer surface of the movable shaft 4. Protective side plates 6 are installed on the outer two side surfaces of the support side plate 5. When used by hand, the support side plate 5 is in contact with the outer side of the sound level meter housing 1, and the bottom fixing plate 8 is in contact with the bottom of the sound level meter housing 1. Through the fixed contact between the support side plate 5 and the protective side plates 6, and between the bottom fixing plate 8 and the outer side of the sound level meter housing 1, the strength of the sound level meter housing 1 is strengthened.

[0033] Furthermore, the flipping fixing component includes a flipping shaft 7 and a bottom fixing plate 8. The flipping shaft 7 is movably installed on the bottom surface of the support side plate 5, and the bottom fixing plate 8 is installed on the outer surface of the flipping shaft 7. A limiting insertion shaft 9 is installed on one side surface of the bottom fixing plate 8, and a fixed insertion slot 10 corresponding to the limiting insertion shaft 9 is provided on the bottom surface of the sound level meter housing 1. When it needs to be fixed on a plane, the limiting insertion shaft 9 is pulled out from the fixed insertion slot 10, and the flipping shaft 7 is rotated to drive the bottom fixing plate 8 to flip, so that an inclined angle is formed between the bottom fixing plate 8 and the support side plate 5. Then the movable shaft 4 is rotated, so that the support side plate 5 rotates, and thus an inclined angle is formed between the support side plate 5 and the sound level meter housing 1. The support side plate 5 and the bottom fixing plate 8 form a bracket structure, and the fixed bottom can be placed on a plane, and the sound level meter housing 1 is placed on the plane through the bracket structure.

[0034] Furthermore, the limiting insertion shaft 9 includes a fixed ball shaft 92 and an installation insertion shaft 91. The installation insertion shaft 91 is installed on one side surface of the bottom fixing plate 8, and two fixed ball shafts 92 are respectively installed on the outer surface of the installation insertion shaft 91. A rubber insertion shaft 93 is installed on the outer surface of the installation insertion shaft 91, which can increase the stability of the clamping connection between the fixed insertion shaft 9 and the fixed insertion slot 10.

[0035] Furthermore, the protection mechanism includes a protection component and a positioning connection component. The protection component is installed on the outer surface of the test microphone 3, and the positioning connection component is installed on the outer surface of the protection component. The protection component includes a first cylinder 11 and a second cylinder 12. The first cylinder 11 and the second cylinder 12 are both movably sleeved on the outer surface of the test microphone 3. A magnetic attraction block 13 is installed on the outer surface of the first cylinder 11, and a fixed iron sheet 14 is installed on the outer surface of the second cylinder 12. The magnetic attraction block 13 and the fixed iron sheet 14 are in movable contact. Traction ropes 15 are installed on the bottom surfaces of the first cylinder 11 and the second cylinder 12, and the end surfaces of the traction ropes 15 are connected to the outer surface of the sound level meter.

[0036] Furthermore, the positioning and connecting component includes a first buckle base 16 and a first buckle 17. Flexible patches 24 are installed on the top surfaces of both the first cylinder 11 and the second cylinder 12. The first buckle base 16 is installed on the top surface of any one of the flexible patches 24, and the first buckle 17 is installed on the top surface of the other flexible patch 24. The first buckle base 16 and the first buckle 17 are used in cooperation to engage the first buckle base 16 with the second buckle 19 and the first buckle 17 with the second buckle base 18, so that the two traction ropes 15 are cross-fixed on the outside of the support side plate 5, fixing the inclination angle of the support side plate 5 and making the installation structure more stable.

[0037] Furthermore, a second buckle base 18 and a second buckle 19 are installed on the outer surface of the support side plate 5. The second buckle base 18 is used in cooperation with the first buckle 17, and the second buckle 19 is used in cooperation with the first buckle base 16.

[0038] Furthermore, connectors 20 are movably installed on the outer surfaces of both sides of the sound level meter housing 1, and an elastic strap 21 is installed between the two connectors 20. When in use, the user holds the outside of the support side plate 5 and inserts the fingers between the elastic strap 21 and the sound level meter housing 1, so as to conveniently hold the sound level meter housing 1. Then, the first cylinder 11 and the second cylinder 12 are pulled out to expose the test microphone 3 for noise testing, and the operation is convenient.

[0039] When in use (during operation), when held by hand, the support side plate 5 contacts the outside of the sound level meter housing 1, and the bottom fixing plate 8 contacts the bottom of the sound level meter housing 1. Through the fixed contact between the support side plate 5 and the protective side plate 6 and between the bottom fixing plate 8 and the outside of the sound level meter housing 1, the strength of the sound level meter housing 1 is strengthened. When in use, the user holds the outside of the support side plate 5 and inserts the fingers between the elastic strap 21 and the sound level meter housing 1, so as to conveniently hold the sound level meter housing 1. Then, the first cylinder 11 and the second cylinder 12 are pulled out to expose the test microphone 3 for noise testing, and the operation is convenient;

[0040] When it needs to be fixed on a plane, the limit insertion shaft 9 is pulled out from the fixed slot 10, and the bottom fixing plate 8 is driven to flip by rotating the rotating shaft 7, so that an inclination angle is formed between the bottom fixing plate 8 and the support side plate 5. Then, the movable shaft 4 is rotated to make the support side plate 5 rotate, so that an inclination angle is formed between the support side plate 5 and the sound level meter housing 1. The support side plate 5 and the bottom fixing plate 8 form a bracket structure, and the fixed bottom can be placed on the plane. The sound level meter housing 1 is placed on the plane through the bracket structure. The first cylinder 11 and the second cylinder 12 are separated from each other. The first buckle base 16 is engaged with the second buckle 19, and the first buckle 17 is engaged with the second buckle base 18, so that the two traction ropes 15 are cross-fixed on the outside of the support side plate 5, fixing the inclination angle of the support side plate 5 and making the installation structure more stable;

[0041] When the sound level meter housing 1 needs to be suspended and fixed, pull out the first cylinder body 11 and the second cylinder body 12 to expose the test microphone 3. Then separate the first cylinder body 11 from the second cylinder body 12, stretch the towing rope 15, pass the towing rope 15 around the position to be suspended, and then snap the first buckle seat 16 with the first buckle 17. Lift and install the sound level meter housing 1 at the position to be suspended through the towing rope 15, which is convenient for measurement.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A fixed multi-functional sound level meter, characterized in that, It includes a sound level meter housing (1) and a preamplifier (2) installed on the top surface of the sound level meter housing (1), and is characterized in that: a test microphone (3) is installed on the top surface of the preamplifier (2), a display screen (22) and control buttons (23) are installed on one side surface of the sound level meter housing (1), a fixing mechanism is installed on the outer surface of the sound level meter housing (1), the fixing mechanism is used to fixedly install the sound level meter housing (1) in various occasions, a protection mechanism is installed on the outer surface of the test microphone (3), and the protection mechanism can protect the test microphone and can be used as a hanging installation structure. The fixing mechanism includes a support fixing component and a flipping fixing component. The support fixing component is installed on one side surface of the sound level meter housing (1), and the flipping fixing component is installed on the outer surface of the support fixing component. The support fixing component includes a support side plate (5) and a movable shaft (4). The movable shaft (4) is movably installed on one side surface of the sound level meter housing (1), the support side plate (5) is installed on the outer surface of the movable shaft (4), and protective side plates (6) are installed on the outer two side surfaces of the support side plate (5). The flipping fixing component includes a flipping shaft (7) and a bottom fixing plate (8). The flipping shaft (7) is movably installed on the bottom surface of the support side plate (5), the bottom fixing plate (8) is installed on the outer surface of the flipping shaft (7), a limit insertion shaft (9) is installed on one side surface of the bottom fixing plate (8), and a fixing slot (10) corresponding to the limit insertion shaft (9) is opened on the bottom surface of the sound level meter housing (1). The protection mechanism includes a protection component and a positioning connection component. The protection component is installed on the outer surface of the test microphone (3), and the positioning connection component is installed on the outer surface of the protection component. The protection component includes a first cylinder (11) and a second cylinder (12). The first cylinder (11) and the second cylinder (12) are both movably sleeved on the outer surface of the test microphone (3). A magnetic attraction block (13) is installed on the outer surface of the first cylinder (11), a fixing iron sheet (14) is installed on the outer surface of the second cylinder (12), the magnetic attraction block (13) and the fixing iron sheet (14) are in movable contact, and traction ropes (15) are installed on the bottom surfaces of the first cylinder (11) and the second cylinder (12). The end surface of the traction rope (15) is connected to the outer surface of the sound level meter.

2. The multifunctional sound level meter according to claim 1, wherein: The limit insertion shaft (9) includes a fixed ball shaft (92) and an installation insertion shaft (91). The installation insertion shaft (91) is installed on one side surface of the bottom fixing plate (8), two fixed ball shafts (92) are respectively installed on the outer surface of the installation insertion shaft (91), and a rubber insertion shaft (93) is installed on the outer surface of the installation insertion shaft (91).

3. The multifunctional sound level meter according to claim 1, wherein: The positioning and connecting component includes a first buckle seat (16) and a first buckle (17). Flexible patches (24) are installed on the top surfaces of the first cylinder body (11) and the second cylinder body (12). The first buckle seat (16) is installed on the top surface of any one of the flexible patches (24), and the first buckle (17) is installed on the top surface of the other flexible patch (24). The first buckle seat (16) and the first buckle (17) are used in cooperation.

4. A fixable multi-functional sound level meter according to claim 1, characterized in that: A second buckle seat (18) and a second buckle (19) are installed on the outer surface of the support side plate (5). The second buckle seat (18) is used in cooperation with the first buckle (17), and the second buckle (19) is used in cooperation with the first buckle seat (16).

5. The multifunctional sound level meter according to claim 1, wherein: Connectors (20) are movably installed on the outer two side surfaces of the sound level meter housing (1), and an elastic strap (21) is installed between the two connectors (20).

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