CN213209246U

CN213209246U - Multifunctional sound level calibration device

Info

Publication number: CN213209246U
Application number: CN202021748234.1U
Authority: CN
Inventors: 耿乐; 李芳琪; 王凯; 夏小雨
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-05-14
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses a multi-functional sound level calibrating device, including shell body, preamplifier and basic seat install respectively at the both ends of shell body, install the bubble tube on the lateral wall of shell body, and basic seat includes rubber layer, base, basis circle, circular magnetic path, block ear and spacing ring. This multi-functional sound level calibrating device, the dismouting of base seat freedom on the shell body, whole equipment can adapt to different service environment like this, the convenience of dismouting ten minutes simultaneously, when base and basic circle are connected, the block ear cooperatees with the buckle, the spacing ring inserts in the arc wall, overall stability is better, after the circular magnetic path of installation, can be parallel with the laminating of whole equipment on the lateral wall of waiting to detect the machine of eminence through the magnetic force of circular magnetic path, it is handheld to need not the workman, the convenience of use is better, can be according to the skew degree of bubble in the bubble tube simultaneously, the light vibrations condition that can judge mechanical equipment, whole functional is good promptly.

Description

Multifunctional sound level calibration device

Technical Field

The utility model relates to a sound level calibration technical field specifically is a multi-functional sound level calibrating device.

Background

A sound calibrator is a device that, when coupled to a microphone of a given type and configuration (e.g., with or without a protective grill cover), produces one or more known sound pressure levels at one or more given frequencies. The sound pressure level produced by the sound calibrator is related to environmental conditions such as air pressure, air, temperature, and relative humidity. The sound calibrator device has two main uses, the first is to determine the sound pressure sensitivity of a microphone with a specified type structure; the second is to check or adjust the overall sensitivity of the acoustic measurement device or system.

Sound level calibration devices are generally not bulky and can be held by the hand of a technician for measurement. However, when some areas with higher heights are measured, technicians need to climb to the height to carry out handheld measurement, the risk is increased, meanwhile, the technicians are tired, meanwhile, the sound level calibration device can often measure some machining equipment, when the machining equipment runs, not only sound is generated by a machining part, but also the main body of the machining part can vibrate, and if the vibration condition of the machining equipment is difficult to determine.

Disclosure of Invention

An object of the utility model is to provide a multi-functional sound level calibrating device possesses can freely dismouting and satisfy different service environment, and easy dismounting's advantage can solve the problem among the prior art simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional sound level calibration device comprises an outer shell, a preamplifier and a base seat, wherein a capacitance sensor is installed at the top end of the preamplifier, the preamplifier and the base seat are respectively installed at two ends of the outer shell, the outer shell is cylindrical, a bubble tube is installed on the side wall of the outer shell, the base seat comprises a rubber layer, a base ring, a circular magnetic block, clamping lugs and a limiting ring, internal threads are formed in the inner wall of the rubber layer, the rubber layer is movably connected with the outer shell in a threaded fit mode, the bottom end of the rubber layer is fixed with the base, the clamping lugs and the limiting ring which are uniformly distributed are installed at the bottom edge of the base, the base is in contact with the base ring through the clamping lugs and the limiting ring, buckles matched with the clamping lugs are formed in the side wall of the base ring, an arc-shaped groove preset in the base ring is in, the circular magnetic block is positioned right below the base.

Preferably, a display screen and a button are further mounted on the side wall of the outer shell.

Preferably, the type of the capacitance sensor is TZ-2KA, and a noise reduction cotton ball is sleeved on the outer side of the capacitance sensor.

Preferably, the clamping lugs and the limiting rings are alternately distributed.

Preferably, the centerline axis of the bubble vial is parallel to the centerline axis of the outer shell.

Preferably, the bubble tube is made of an acrylic material.

Preferably, a thread groove matched with the internal thread is preset at the bottom end edge of the outer shell.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the multifunctional sound level calibration device has the advantages that the base seat can be freely assembled and disassembled on the outer shell, so that the whole equipment can adapt to different use environments, meanwhile, the assembly and disassembly are very convenient, the rubber layer in the foundation base is movably connected with the outer shell in a thread matching mode, so that the whole foundation base achieves the effect of free assembly and disassembly, and is convenient to assemble and disassemble, when the base is connected with the foundation ring, the clamping lug is matched with the buckle to complete clamping, the limiting ring is inserted into the arc-shaped groove to complete limiting, so that the foundation base has better overall stability, after the circular magnetic block is installed, the whole device can be attached to the side wall of the machine to be detected at a high position in parallel by the magnetic force of the circular magnetic block without being held by a worker, the use convenience is better, meanwhile, the vibration condition of mechanical equipment can be easily judged according to the deviation degree of bubbles in the bubble vial, and the whole functionality is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the foundation structure of the present invention;

FIG. 3 is a schematic view of the base and the foundation ring of the present invention;

FIG. 4 is a schematic view of the base structure of the present invention;

fig. 5 is a schematic view of the foundation ring structure of the present invention.

In the figure: 1. an outer housing; 11. a display screen; 12. a button; 2. a preamplifier; 21. a capacitive sensor; 22. a noise-reducing cotton ball; 3. a base seat; 31. a rubber layer; 311. an internal thread; 32. a base; 33. a foundation ring; 331. buckling; 332. an arc-shaped slot; 34. a circular magnetic block; 35. clamping the lug; 36. a limiting ring; 4. and (4) a bubble tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a multifunctional sound level calibration device comprises an outer casing 1, a preamplifier 2 and a base seat 3, wherein a capacitance sensor 21 is installed at the top end of the preamplifier 2, the capacitance sensor 21 is of a type TZ-2KA, the capacitance sensor 21 of the type TZ-2KA can receive sound signals, a noise reduction cotton ball 22 is sleeved outside the capacitance sensor 21, the noise reduction cotton ball 22 is installed to reduce the influence of external noise on the sound to be detected under the condition of not influencing normal detection, the preamplifier 2 and the base seat 3 are respectively installed at two ends of the outer casing 1, the preamplifier 2 is a fixed part, the base seat 3 can be freely disassembled and assembled on the outer casing 1, so that the whole device can adapt to different use environments, the disassembly and assembly are very convenient, the outer casing 1 is cylindrical, a bubble tube 4 is installed on the side wall of the outer casing 1, compared with a common multifunctional sound level calibration device, the installation bubble tube 4 can detect horizontality, the bubble tube 4 is made of acrylic materials, bubbles inside the bubble tube 4 are clear and visible, meanwhile, the acrylic materials are light in weight, the central line axis of the bubble tube 4 is parallel to the central line axis of the outer shell 1, therefore, when the device is used horizontally, the horizontality can be judged through the bubble tube 4, a display screen 11 and a button 12 are further installed on the side wall of the outer shell 1, the display screen 11 is used for displaying data, the base seat 3 comprises a rubber layer 31, a base 32, a base ring 33, a circular magnetic block 34, a clamping lug 35 and a limiting ring 36, an internal thread 311 is formed in the inner wall of the rubber layer 31, the rubber layer 31 is movably connected with the outer shell 1 in a thread matching mode, a thread groove matched with the internal thread 311 is preset at the bottom edge of the corresponding outer shell 1, quite conveniently, the bottom end of the rubber layer 31 is fixed with the base 32, the bottom edge of the base 32 is provided with the clamping lugs 35 and the limiting rings 36 which are uniformly distributed, the clamping lugs 35 and the limiting rings 36 are alternately distributed, the clamping lugs 35 and the limiting rings 36 are both used for connecting the base 32 with the base ring 33, the clamping lugs 35 are used for connecting, the limiting rings 36 are used for limiting, the base 32 is contacted with the base ring 33 through the clamping lugs 35 and the limiting rings 36, the side wall of the base ring 33 is provided with the buckles 331 matched with the clamping lugs 35, the preset arc-shaped groove 332 on the base ring 33 is contacted with the limiting rings 36, when the base 32 is connected with the base ring 33, the clamping lugs 35 are matched with the buckles 331, the limiting rings 36 are inserted into the arc-shaped groove 332, the inner side of the base ring 33 is provided with the circular magnetic block 34, the circular magnetic block 34 is positioned right below the base 32, the circular magnetic block 34 generates magnetic force, the whole equipment can be attached to the side, the hand-held type is not needed, and the use convenience is better.

The multifunctional sound level calibration device comprises an outer shell 1, a preamplifier 2 and a base seat 3, wherein the preamplifier 2 and the base seat 3 are respectively arranged at two ends of the outer shell 1, the preamplifier 2 is a fixing part, the base seat 3 can be freely disassembled and assembled on the outer shell 1, so that the whole device can adapt to different use environments, the disassembly and the assembly are very convenient, a bubble tube 4 is arranged on the side wall of the outer shell 1, compared with a common multifunctional sound level calibration device, the installation of the bubble tube 4 can detect the horizontality, the bubble tube 4 is made of an acrylic material and is light in weight, bubbles in the bubble tube 4 are clearly visible, so that the horizontality can be judged through the bubble tube 4 when the device is used horizontally, the base seat 3 capable of being freely disassembled and assembled consists of a rubber layer 31, a base 32, a base ring 33, a circular magnetic block 34, a clamping lug 35 and a limiting ring 36, the rubber layer 31 is movably connected with the outer shell 1 in a threaded fit mode, so that the whole foundation base 3 achieves the effect of free disassembly and assembly, the bottom end of the rubber layer 31 is fixed with the base 32, the clamping lugs 35 and the limiting rings 36 which are installed on the bottom edge of the base 32 are alternately distributed, the clamping lugs 35 are used for connection, the limiting rings 36 are used for limiting, when the base 32 is connected with the foundation ring 33, the clamping lugs 35 are matched with the buckles 331 to complete clamping, the limiting rings 36 are inserted into the arc-shaped grooves 332 to complete limiting, so that the foundation base 3 is better in overall stability, the circular magnetic blocks 34 are installed on the inner side of the foundation ring 33, the multifunctional sound level calibrating device can be generally used for measurement by hand, when measuring in areas with higher heights, technicians climb up to carry out handheld measurement, the danger is increased, the technicians are tired at the same time, but after the circular magnetic blocks 34 are installed, the laminating that can be parallel with whole equipment through the magnetic force of circular magnetic block 34 need not the workman and holds on the lateral wall of the machine of waiting to detect of eminence, and it is better to use the convenience, when measuring the mechanical equipment of low department, also can cross the laminating that the magnetic force of circular magnetic block 34 is parallel with whole equipment, and the skew degree of bubble in the bubble tube 4 simultaneously can also be relaxed can judge mechanical equipment's the vibrations condition, and whole functional is good promptly.

In summary, the following steps: the multifunctional sound level calibration device has the advantages that the foundation base 3 can be freely disassembled and assembled on the outer shell 1, so that the whole device can adapt to different use environments, the disassembly and the assembly are very convenient, the rubber layer 31 in the foundation base 3 is movably connected with the outer shell 1 in a threaded fit mode, the whole foundation base 3 achieves the effect of free disassembly and assembly, the disassembly and the assembly are convenient, when the base 32 is connected with the foundation ring 33, the clamping lugs 35 are matched with the clamping buckles 331 to complete the clamping, the limiting ring 36 is inserted into the arc-shaped groove 332 to complete the limiting, the overall stability of the foundation base 3 is better, after the circular magnetic block 34 is installed, the whole device can be parallelly attached to the side wall of a machine to be detected at a high position through the magnetic force of the circular magnetic block 34, the multifunctional sound level calibration device does not need to be held by a worker, the use convenience is better, meanwhile, the vibration condition of mechanical equipment can be easily judged according, the whole functionality is good.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multi-functional sound level calibrating device, includes shell body (1), preamplifier (2) and basic seat (3), its characterized in that: the capacitance sensor (21) is installed at the top end of the preamplifier (2), the preamplifier (2) and the base seat (3) are respectively installed at two ends of the outer shell (1), the outer shell (1) is cylindrical, the bubble tube (4) is installed on the side wall of the outer shell (1), the base seat (3) comprises a rubber layer (31), a base (32), a base ring (33), a circular magnetic block (34), a clamping lug (35) and a limiting ring (36), an internal thread (311) is formed in the inner wall of the rubber layer (31), the rubber layer (31) is movably connected with the outer shell (1) in a thread fit mode, the bottom end of the rubber layer (31) is fixed with the base (32), the clamping lug (35) and the limiting ring (36) are evenly distributed on the bottom edge of the base (32), and the base (32) is in contact with the base ring (33) through the clamping lug (35) and the limiting ring (36), the lateral wall of the base ring (33) is provided with a buckle (331) matched with the clamping lug (35), a preset arc-shaped groove (332) on the base ring (33) is in contact with the limiting ring (36), the inner side of the base ring (33) is provided with a circular magnetic block (34), and the circular magnetic block (34) is positioned under the base (32).

2. A multifunctional sound level calibration device according to claim 1, characterized in that: and the side wall of the outer shell (1) is also provided with a display screen (11) and a button (12).

3. A multifunctional sound level calibration device according to claim 1, characterized in that: the model of capacitive sensor (21) is TZ-2KA, and noise reduction cotton ball (22) is overlapped to the outside cover of capacitive sensor (21).

4. A multifunctional sound level calibration device according to claim 1, characterized in that: the clamping lugs (35) and the limiting rings (36) are alternately distributed.

5. A multifunctional sound level calibration device according to claim 1, characterized in that: the axis of the central line of the bubble tube (4) is parallel to the axis of the central line of the outer shell (1).

6. A multifunctional sound level calibration device according to claim 1, characterized in that: the bubble tube (4) is made of an acrylic material.

7. A multifunctional sound level calibration device according to claim 1, characterized in that: the bottom edge of the outer shell (1) is provided with a thread groove matched with the internal thread (311) in advance.