CN211426383U

CN211426383U - Standing wave tube sound absorption system determination experimental equipment

Info

Publication number: CN211426383U
Application number: CN202020013889.8U
Authority: CN
Inventors: 呼江浩
Original assignee: Hangzhou Zhijiang Water Treatment Equipment Co ltd
Current assignee: Hangzhou Zhijiang Water Treatment Equipment Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-04
Anticipated expiration: 2030-01-06

Abstract

The utility model belongs to the technical field of standing wave tube sound absorption system survey, especially, be a standing wave tube sound absorption system survey experimental facilities, including body frame and slide rail, quick-witted case is installed at the top of body frame, and the top of quick-witted case installs the display, the slide rail is seted up in the outer wall of body frame, and the inboard of slide rail links up the sliding plate, the movable block is installed at the top of sliding plate, and the inboard of movable block installs the spring, the fixed block is installed in the left side of spring, and the inboard of fixed block installs the adapter, the left side of adapter links up and has connect sounding pipe, and sounding pipe's the outside installs audio signal generator, the speaker box is installed in audio signal generator's the outside, and the left side of speaker box is provided with the standing wave body, the left side of standing wave body links up. The standing wave tube sound absorption system is high in accuracy of experimental data of the experimental device, strong in protection of equipment parts and small in experimental result error.

Description

Standing wave tube sound absorption system determination experimental equipment

Technical Field

The utility model relates to a standing wave tube sound absorption system survey technical field specifically is a standing wave tube sound absorption system survey experimental facilities.

Background

The standing wave tube sound absorption system determination experiment is an important experiment in environmental physical engineering experiments, and mainly cultivates the manufacturing of test samples by testers, so that the principle of determining the sound absorption coefficient and the sound impedance by a standing wave tube method is understood, and specific operation skills are mastered.

The gliding distance of unable accuracy of accuse of ordinary standing wave tube sound absorbing system survey experimental facilities on the market now exists and uses the coaster to have high requirement to the place roughness of experiment, can't carry out the shortcoming of accuse to the approach distance of test piece, it is not high to lead to the experimental data precision, it is not strong to equipment part's protectiveness, the great problem of experimental result error, it is high to need to have the experimental data precision, strong to equipment part's protectiveness, the less novel standing wave tube sound absorbing system of experimental result error surveys experimental facilities.

Aiming at the problems, innovative design is urgently needed on the basis of the original standing wave tube sound absorption system measurement experimental equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a standing wave tube sound absorbing system surveys experimental facilities to solve the unable accuracy of the like product use coaster that provides in the above-mentioned background art the gliding distance of accuse, and have high requirement to the place roughness of experiment, can't go on the shortcoming of accuse to the distance of exploring of test piece, lead to the experimental data precision not high, not strong to the protectiveness of equipment part, the great problem of experimental result error.

In order to achieve the above object, the utility model provides a following technical scheme: a standing wave tube sound absorption system determination experimental device comprises a main frame and a slide rail, wherein a case is installed at the top of the main frame, a display is installed at the top of the case, the slide rail is arranged on the outer wall of the main frame, a slide plate is connected to the inner side of the slide rail in a jointed mode, a movable block is installed at the top of the slide plate, a spring is installed on the inner side of the movable block, a fixed block is installed on the left side of the spring, a sound pickup is installed on the inner side of the fixed block, a sound detection tube is connected to the left side of the sound pickup in a jointed mode, an audio signal generator is installed on the outer side of the sound detection tube, a loudspeaker box is installed on the outer side of the audio signal generator, a standing wave tube body is arranged on the left side of the loudspeaker box, a connecting plate is connected to the left side of the standing, and a fixing rod is arranged on the outer side of the test piece.

Preferably, the moving block and the sliding rail form a sliding structure through a sliding plate, and a central axis of the moving block is parallel to a central axis of the main frame.

Preferably, the spring is provided with two about the axis symmetry of fixed block, and is the block structure between fixed block and the adapter.

Preferably, the sound detecting tube is in interference connection with the audio signal generator, and the central axis of the sound detecting tube coincides with the central axis of the standing wave tube body.

Preferably, threaded connection is adopted between the connection plate and the threaded rod, and the connection plate and the standing wave pipe body are connected in a welding mode.

Preferably, the fixed rods are symmetrically arranged about the central axis of the threaded rod, and the threaded rod forms a clamping structure with the test piece through the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that: the standing wave tube sound absorption system has the advantages that the accuracy of experimental data of experimental equipment is high, the protection on equipment parts is strong, and the error of an experimental result is small;

1. the standing wave tube sound absorption system measurement experiment equipment is characterized in that the sliding plate drives the moving block to slide on the main frame through the arrangement of the sliding rail, the sliding plate and the moving block, and the sliding distance is determined by aligning scales according to experiment requirements through the arrangement of the sliding rail by a user;

2. the standing wave tube sound absorption system measurement experimental equipment is flexible and efficient in structure adjustment and strong in moving distance controllability, and by arranging the connecting plates and the threaded rods and rotating the threaded rods on the inner sides of the connecting plates, the threaded rods drive the test piece to slide on the inner side of the standing wave tube body and enable the test piece to reach a designated position;

3. this standing wave tube sound absorption system survey experimental facilities passes through the setting of draw-in groove, test piece and dead lever, and the user is corresponding and the block is fixed with the tip of threaded rod and the draw-in groove of test piece to use the dead lever to carry out further fixed to the test piece, thereby accomplish the fixed mounting to the test piece, the simple high efficiency of installation fixed mode, convenient user is taken getting of test piece, has avoided the test piece stifled inboard at the standing wave body, and convenient user is to the change of test piece.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic view of a connection structure between the moving block and the main frame of the present invention;

fig. 3 is a schematic side view of the standing wave tube of the present invention;

FIG. 4 is a schematic diagram of the structure at A in FIG. 1 according to the present invention;

fig. 5 is a schematic diagram of the structure at B in fig. 1.

In the figure: 1. a main frame; 2. a chassis; 3. a display; 4. a slide rail; 5. a sliding plate; 6. a moving block; 7. a spring; 8. a fixed block; 9. a sound pickup; 10. a sound detecting pipe; 11. an audio signal generator; 12. a speaker box; 13. a standing wave tube body; 14. a connector tile; 15. a threaded rod; 16. a card slot; 17. a test piece; 18. and (5) fixing the rod.

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, the present invention provides a technical solution: a standing wave tube sound absorption system determination experimental device comprises a main frame 1, a case 2, a display 3, a slide rail 4, a sliding plate 5, a moving block 6, a spring 7, a fixed block 8, a pickup 9, a sound detection tube 10, an audio signal generator 11, a loudspeaker box 12, a standing wave tube body 13, a connecting plate 14, a threaded rod 15, a clamping groove 16, a test piece 17 and a fixed rod 18, wherein the case 2 is installed at the top of the main frame 1, the display 3 is installed at the top of the case 2, the slide rail 4 is arranged on the outer wall of the main frame 1, the sliding plate 5 is connected to the inner side of the slide rail 4, the moving block 6 is installed at the top of the sliding plate 5, the spring 7 is installed at the inner side of the moving block 6, the fixed block 8 is installed at the left side of the spring 7, the pickup 9 is installed at the inner side of the fixed block 8, the sound detection tube 10 is, a loudspeaker box 12 is installed on the outer side of the audio signal generator 11, a standing wave pipe body 13 is arranged on the left side of the loudspeaker box 12, the left side of the standing wave pipe body 13 is connected with a connecting plate 14, a threaded rod 15 penetrates through the inner side of the connecting plate 14, a clamping groove 16 is formed in the bottom end of the threaded rod 15, a test piece 17 is arranged on the outer side of the clamping groove 16, and a fixing rod 18 is arranged on the outer side of the test piece 17;

furthermore, the moving block 6 and the sliding rail 4 form a sliding structure through the sliding plate 5, the central axis of the moving block 6 is parallel to the central axis of the main frame 1, and a user can drive the moving block 6 to slide on the main frame 1 through the arrangement of the sliding rail 4 and determine the sliding distance by aligning with the scales according to the experimental requirements, so that the moving mode is stable and efficient, the sliding distance can be accurately controlled, the accuracy of the experimental result is high, and the error of the experimental result is small;

furthermore, the two springs 7 are symmetrically arranged about the central axis of the fixed block 8, a clamping structure is arranged between the fixed block 8 and the sound pickup 9, and the sound detection tube 10 at the end part of the sound detection tube can be driven to change positions on the inner side of the standing wave tube body 13 due to the arrangement of the sound pickup 9 connected to the inner side of the fixed block 8 on the springs 7, so that the fixing mode is simple and efficient, the damping effect of the device is strong, and the safety of the device parts is improved;

furthermore, the sound detecting tube 10 is in interference connection with the audio signal generator 11, the central axis of the sound detecting tube 10 coincides with the central axis of the standing wave tube body 13, the sound detecting tube 10 changes positions on the inner side of the standing wave tube body 13, the audio signal generator 11 transmits signals to the inner side of the loudspeaker box 12 and transmits sounds to the case 2, the structure is tightly connected, the connection of parts is smooth, and the signals are conveniently and quickly transmitted;

furthermore, the connection plate 14 is in threaded connection with the threaded rod 15, the connection plate 14 is in welded connection with the standing wave tube body 13, the threaded rod 15 on the inner side of the connection plate 14 is rotated, so that the threaded rod 15 drives the test piece 17 to slide on the inner side of the standing wave tube body 13, and the test piece 17 reaches a specified position, and the structure adjustment is flexible and efficient, and the movement distance controllability is strong;

further, dead lever 18 is provided with two about the axis symmetry of threaded rod 15, and threaded rod 15 passes through draw-in groove 16 and test piece 17 constitution block structure, the user is corresponding and the block is fixed with the tip of threaded rod 15 and test piece 17's draw-in groove 16, and use dead lever 18 to carry out further fixed to test piece 17, thereby accomplish the fixed mounting to test piece 17, the simple high efficiency of installation fixed mode, convenient user takes test piece 17, test piece 17 has been avoided stifled at standing wave body 13 inboardly, and convenient user is to the change of test piece 17.

The working principle is as follows: firstly, fixedly mounting a case 2 and a display 3 on the top of a main frame 1, then connecting the power supplies of the case 2 and the display 3 and the power supplies of a sound pickup 9 and an audio signal generator 11 by a user, wherein the model of the display 3 is 223V5LSB2, the model of the sound pickup 9 and the model of the audio signal generator 11 are MX-K80 and N5182A respectively, then enabling the end part of a threaded rod 15 to correspond to and be clamped and fixed with a clamping groove 16 of a test piece 17 by the user, further fixing the test piece 17 by using a fixed rod 18, thereby completing the fixed mounting of the test piece 17, and then enabling the threaded rod 15 on the inner side of a connecting plate 14 to drive the test piece 17 to slide on the inner side of a standing wave tube body 13 and enabling the test piece 17 to reach a specified position by rotating the threaded rod 15 on the inner;

next, the user makes the sliding plate 5 drive the moving block 6 to slide on the main frame 1 through the arrangement of the sliding rail 4, and the sliding distance is determined according to the experiment requirement by aligning with the scale, meanwhile, the sound detecting tube 10 at the end part can be driven to change the position at the inner side of the standing wave tube body 13 due to the arrangement of the sound pickup 9 at the inner side of the fixed block 8 connected with the spring 7, the sound signal generator 11 transmits the signal to the inner side of the loudspeaker box 12 and transmits the sound to the case 2, meanwhile, the sound pickup 9 and the case 2 are provided with a connecting wire, the recording of the whole data is completed and the data is displayed on the display 3, and the use of the whole experiment device is completed.

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. The utility model provides a standing wave tube sound absorption system survey experimental facilities, includes body frame (1) and slide rail (4), its characterized in that: the improved multifunctional standing wave device is characterized in that a case (2) is installed at the top of the main frame (1), a display (3) is installed at the top of the case (2), the slide rail (4) is arranged on the outer wall of the main frame (1), the inner side of the slide rail (4) is connected with a slide plate (5), a movable block (6) is installed at the top of the slide plate (5), a spring (7) is installed on the inner side of the movable block (6), a fixed block (8) is installed on the left side of the spring (7), a sound pickup (9) is installed on the inner side of the fixed block (8), a sound detection pipe (10) is connected to the left side of the sound pickup (9), an audio signal generator (11) is installed on the outer side of the sound detection pipe (10), a loudspeaker box (12) is installed on the outer side of the audio signal generator (11), a standing wave pipe body (13) is arranged on the left side of the loudspeaker, and a threaded rod (15) penetrates through the inner side of the connecting plate (14), a clamping groove (16) is formed in the bottom end of the threaded rod (15), a test piece (17) is arranged on the outer side of the clamping groove (16), and a fixing rod (18) is arranged on the outer side of the test piece (17).

2. The standing wave tube sound absorption system measurement experimental equipment as claimed in claim 1, wherein: the moving block (6) and the sliding rail (4) form a sliding structure through the sliding plate (5), and the central axis of the moving block (6) is parallel to the central axis of the main frame (1).

3. The standing wave tube sound absorption system measurement experimental equipment as claimed in claim 1, wherein: spring (7) are provided with two about the axis symmetry of fixed block (8), and are the block structure between fixed block (8) and adapter (9).

4. The standing wave tube sound absorption system measurement experimental equipment as claimed in claim 1, wherein: the sound detecting tube (10) is in interference connection with the audio signal generator (11), and the central axis of the sound detecting tube (10) coincides with the central axis of the standing wave tube body (13).

5. The standing wave tube sound absorption system measurement experimental equipment as claimed in claim 1, wherein: the connection plate (14) is in threaded connection with the threaded rod (15), and the connection plate (14) is in welded connection with the standing wave pipe body (13).

6. The standing wave tube sound absorption system measurement experimental equipment as claimed in claim 1, wherein: the fixing rods (18) are symmetrically arranged about the central axis of the threaded rod (15), and the threaded rod (15) forms a clamping structure with the test piece (17) through the clamping groove (16).