CN218124935U

CN218124935U - Test baffle structure

Info

Publication number: CN218124935U
Application number: CN202222627092.9U
Authority: CN
Inventors: 黄行军; 霍嘉锋; 欧阳平
Original assignee: Dongguan Jinghuan Environmental Protection Equipment Co ltd
Current assignee: Dongguan Jinghuan Environmental Protection Equipment Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-23
Anticipated expiration: 2032-09-30

Abstract

The application relates to the technical field of sounding device testing, in particular to a test baffle structure. The key points of the technical scheme are as follows: the device comprises a baffle plate for fixing a sounding device, a platform for placing a testing device, a fixing frame for mounting the baffle plate and a telescopic frame for driving the platform to lift; the fixed frame and the telescopic frame are placed on the grid ground of the anechoic chamber, and the telescopic frame is close to one side of the baffle plate; the expansion bracket including place in support body, the activity on net ground peg graft in the telescopic link of support body and be used for the locking the support body with the locking piece of telescopic link, platform fixed connection in telescopic link one end, the telescopic link slides and goes up and down in order to drive the platform, and this application has the advantage of the stability of promotion baffle and testing arrangement relative position in order to improve the accuracy nature of test.

Description

Test baffle structure

Technical Field

The application relates to the technical field of sounding device testing, in particular to a test baffle structure.

Background

The sound box is a common device in life, and is mainly used for converting an electric signal into an acoustic signal and radiating the acoustic signal to the outside of the sound box. The sound box needs to be acoustically tested before leaving a factory, a sound production device needs to be tested in a silencing room, the inner surface of the silencing room is covered by a carpet-shaped or horizontally and vertically wedge-shaped sound absorption material, and the sound box also comprises a grid ground consisting of a metal frame and a metal net.

In the existing acoustic test, a sounding device is arranged on a baffle special for testing, the baffle is arranged on a fixed support, a testing device is arranged on the fixed support at one side close to the baffle, and the testing device tests sound waves emitted by the sounding device.

Aiming at the related technology, the relative position of the mask and the testing device can not be adjusted, the support of the testing mask is single in use, and the flexibility is insufficient.

SUMMERY OF THE UTILITY MODEL

In order to improve the flexibility of use when testing sounder, this application provides a test shadow mask structure.

The application provides a test baffle structure adopts following technical scheme:

a test baffle structure comprises a baffle for fixing a sounding device, a platform for placing a test device, a fixing frame for mounting the baffle and a telescopic frame for driving the platform to lift; the fixed frame and the telescopic frame are placed on the grid ground of the anechoic chamber, and the telescopic frame is close to one side of the baffle plate; the telescopic frame comprises a frame body placed on the ground of the grid, a telescopic rod movably inserted into the frame body and a locking piece used for locking the frame body and the telescopic rod, the platform is fixedly connected to one end of the telescopic rod, and the telescopic rod slides to drive the platform to lift.

By adopting the technical scheme, the baffle plate is arranged on the fixing frame, the testing device is placed in the platform, the height of the testing device is adjusted through the telescopic frame, the relative position of the baffle plate and the testing device is guaranteed, meanwhile, the testing device is adjustable, and the flexibility of the structure is improved.

Preferably, the locking piece includes spring catch, locking spring a plurality of fixed orifices has been seted up to support body one side, the fixed orifices is followed the even interval of length of support body sets up, the telescopic link has been seted up and has been supplied the spring catch and the recess of locking spring holding, locking spring is located the spring catch and between the telescopic link, the spring catch passes through the elasticity of locking spring is pegged graft the fixed orifices, right the telescopic link with the support body locks.

By adopting the technical scheme, the telescopic frame and the frame body are relatively fixed through the spring pin, the operation is simple, the quick adjustment of the telescopic length is realized, and the structure is reliable.

Preferably, the locking piece include fixed connection in the seat pipe clamp of support body one side, just the seat pipe clamp is located the support body with telescopic link grafting one end, but the slot of increase support body elastic deformation volume is seted up to the support body, works as the seat pipe clamp is locked during the support body, makes the support body presss from both sides tightly the telescopic link, it is right with the telescopic link with the support body locks.

Through adopting above-mentioned technical scheme, press from both sides tight fixedly in the telescopic link of support body through sitting the pipe clamp, make the flexible length of telescopic link realize infinitely variable control, easy operation realizes flexible length's quick adjustment, and the structure is reliable.

Preferably, the telescopic frame further comprises a limiting part, a sliding hole for the limiting part to slide is formed in the side face of the frame body, the limiting part is fixedly connected with the telescopic rod, the sliding hole is formed in the length direction of the frame body, and the limiting part is abutted to the hole walls on two sides of the sliding hole for limiting.

Through adopting above-mentioned technical scheme, through the setting of locating part, can prevent effectively that the telescopic link from excessively extending to lead to breaking away from with the support body, lead to preventing to drop with the testing arrangement on the platform, improve structural reliability.

Preferably, the fixing frame comprises a cross rod, a vertical rod fixedly connected with the cross rod and inclined supporting rods with two ends respectively connected with the cross rod and the vertical rod, insertion parts which are in insertion fit with the grid ground grids extend downwards from two ends of the cross rod, and the insertion parts are inserted into the grids to fix the fixing frame on the grid ground.

Through adopting above-mentioned technical scheme, the slope bracing piece improves overall structure's stability, has set up grafting portion on horizontal pole and the horizontal pole simultaneously, and the accessible plug is adjusted the position of mount fast.

Preferably, the vertical rod runs through along the length direction of the vertical rod and is provided with a clamping groove, the two sides of the baffle can slide along the groove wall of the clamping groove and abut against the horizontal rod, so that the baffle is clamped and installed.

Through adopting above-mentioned technical scheme, carry out demountable installation to the baffle through the draw-in groove, be convenient for change the baffle, still guaranteed the stability that the baffle was installed on the mount simultaneously.

Preferably, the spring catch includes round pin body and fixed connection in the spacing boss of round pin body one end, the round pin body other end is the fillet setting.

Through adopting above-mentioned technical scheme, spacing boss makes the spring catch remain throughout and slides in the recess of inserted bar to avoid the spring catch to pop out and lead to the expansion bracket inefficacy, the fillet setting of round pin body can make and press the spring catch and change and carry out the unblock to the support body.

Preferably, one side of the platform, which is far away from the telescopic rod, is provided with a mounting groove for accommodating the testing device.

Through adopting above-mentioned technical scheme, mounting groove on the platform provides spacingly to testing arrangement, avoids the lift in-process testing arrangement to produce great skew, has improved the stability when testing arrangement places.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the baffle plate is arranged on the fixing frame, the testing device is placed in the platform, and the height of the testing device is adjusted through the telescopic frame, so that the testing device is adjustable while the relative position of the baffle plate and the testing device is ensured, and the flexibility of the structure is improved;

2. the baffle plate is detachably mounted through the clamping groove, so that the baffle plate is convenient to replace, and meanwhile, the stability of the baffle plate mounted on the fixing frame is ensured;

3. the mounting groove on the platform provides a limit for the testing device, so that the testing device is prevented from generating large deviation in the lifting process, and the stability of the testing device during placement is improved.

Drawings

Fig. 1 is a schematic overall structure diagram in the first embodiment of the present application.

Fig. 2 is a schematic view of an assembly relationship in the first embodiment of the present application.

Fig. 3 is a schematic overall structure diagram in the second embodiment of the present application.

Fig. 4 is a schematic view of an assembly relationship in the second embodiment of the present application.

Description of reference numerals: 1. a baffle plate; 2. a platform; 21. installing a groove; 3. a fixed mount; 31. a cross bar; 311. a plug-in part; 32. a vertical rod; 321. a card slot; 33. inclining the support rod; 4. a telescopic frame; 41. a frame body; 411. a fixing hole; 412. a trench; 413. a slide hole; 42. a telescopic rod; 421. a groove; 5. a locking member; 51. a spring pin; 511. a pin body; 512. a limiting boss; 52. a locking spring; 53. a pipe setting clamp; 6. and a limiting member.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a test baffle structure.

The first embodiment is as follows:

referring to fig. 1 and 2, the structure includes a baffle 1 for fixing a sound generating device, a platform 2 for placing a testing device, a fixing frame 3 for mounting the baffle 1, and an expansion frame 4 for driving the platform 2 to lift. The telescopic frame 4 is telescopic to drive the platform 2 to lift, so that the height of the testing device can be adjusted, the baffle 1 is arranged on the fixing frame 3, the stability of the relative position of the baffle 1 and the testing device is improved, and the testing accuracy is improved.

Specifically, the fixing frame 3 includes a cross rod 31, a vertical rod 32 with a bottom fixedly connected to the cross rod 31, and an inclined supporting rod 33 with two ends respectively fixedly connected to the cross rod 31 and the vertical rod 32, and in this embodiment, the cross rod 31, the vertical rod 32, and the inclined supporting rod 33 are fixed by welding. At the moment, a triangular frame body structure is formed, and the structure is stable.

Simultaneously, downwardly extending has the grafting portion 311 with grid ground net looks grafting cooperation respectively at the both ends of horizontal pole 31, and grafting portion 311 inserts the grid and makes mount 3 be fixed in grid ground, makes horizontal pole 31 and metal grid butt, makes the stability of placing of mount 3 promote.

Meanwhile, in order to realize the fixed support of the baffle plate 1, two groups of fixing frames 3 are arranged, and the two groups of fixing frames 3 are arranged in parallel. Wherein, montant 32 runs through along the length direction of montant 32 and has seted up draw-in groove 321, and the cell wall that draw-in groove 321 can be followed to baffle 1 both sides slides and butt in horizontal pole 31 to carry out the joint installation to baffle 1, such mounting means has realized fixing the both sides of baffle 1 and bottom surface, and the stability of placing of final baffle 1 can promote.

The middle part of baffle 1 runs through and is provided with the holding hole that supplies the stereo set holding, and stereo set accessible threaded connection spare, or install forms such as fixed bolster additional in baffle department, install to baffle 1 department, realize the installation before the stereo set test. After the sound equipment is assembled, the testing device is assembled.

Expansion bracket 4 is including placing in the support body 41 on net ground, along the vertical direction activity peg graft in the telescopic link 42 of support body 41 and be used for locking support body 41 and telescopic link 42's locking piece 5, platform 2 fixed connection is on telescopic link 42 top, and telescopic link 42 slides and goes up and down in order to drive platform 2.

The locking member 5 includes a spring pin 51, a locking spring 52, and a plurality of fixing holes 411 are formed in one side of the frame body 41, in an embodiment, the number of the fixing holes 411 is eight, and the number of the fixing holes 411 may be set according to the installation height of the sound generating device and the height of the frame body 41. The fixing holes 411 are uniformly arranged at intervals in the vertical direction, the telescopic rod 42 is provided with a groove 421 for accommodating the spring pin 51 and the locking spring 52, the locking spring 52 is located between the spring pin 51 and the telescopic rod 42, and the spring pin 51 is inserted into the fixing holes 411 through the elastic force of the locking spring 52 to lock the telescopic rod 42 and the frame body 41.

In order to make it easier to release the insertion locking of the spring pin 51 to the frame body 41, the spring pin 51 includes a pin body 511 and a limit boss 512 fixedly connected to one end of the pin body 511, and the other end of the pin body 511 is disposed in a round shape. The limiting boss 512 keeps the spring pin 51 sliding in the groove 421 of the insertion rod all the time, so as to prevent the spring pin 51 from popping out to cause the failure of the telescopic frame 4.

In addition, when the tester presses the pin body 511, the hole wall of the fixing hole 411 of the frame body 41 abuts against the fillet, and further, the hole wall retracts the spring pin 51 toward the groove 421, so that the telescopic rod 42 can be extended and retracted at this time.

In order to ensure that the telescopic rod 42 is telescopic, the spring pin 51 can be effectively inserted into the fixing hole 411 through the elastic force of the locking spring 52, the telescopic frame 4 further comprises a limiting part 6, a sliding hole 413 for the limiting part 6 to slide is formed in the side surface of the frame body 41, the limiting part 6 is fixedly connected to one side of the telescopic rod 42 through threads, the sliding hole 413 is arranged along the length direction of the frame body 41, and the limiting part 6 is abutted against the hole walls on two sides of the sliding hole 413 to limit the position. Meanwhile, the telescopic stroke of the telescopic rod 42 can be limited, so that the telescopic rod 42 is prevented from falling down due to the fact that the telescopic rod 42 is excessively extended.

In order to improve the stability of the testing device when the testing device is placed on the platform 2, a mounting groove 21 for accommodating the testing device is formed in one side, away from the telescopic rod 42, of the platform 2, and the size of the mounting groove 21 is matched with that of the bottom of the testing device. When the telescopic frame 4 is extended, the groove wall of the mounting groove 21 abuts against the testing device to prevent the testing device from shifting during the extension process.

The implementation principle of the test baffle structure in the embodiment of the application is as follows: an operator firstly inserts the fixed frame 3 and the telescopic frame 4 into the grids to complete the placement of the fixed frame 3 and the telescopic frame 4 in the anechoic chamber, then inserts the two sides of the baffle plate 1 along the groove walls of the clamping grooves 321 to complete the installation of the baffle plate 1, fixedly installs the sounding device on the baffle plate 1, inserts the bottom of the testing device to the installation groove 21, and extends and retracts the telescopic frame 4 after pressing the spring pins 51 to adjust the relative position of the sounding device and the testing device. Finally, the stability of the relative position of the test device is improved so as to improve the test accuracy.

Example two:

referring to fig. 3 and 4, the difference from the first embodiment is that the locking member 5 has a different structure, in the second embodiment, the locking member 5 includes a seat tube clamp 53 fixedly connected to one side of the frame body 41, the seat tube clamp 53 is located at one end of the frame body 41, which is inserted into the telescopic rod 42, the frame body 41 is provided with a groove 412 capable of increasing the elastic deformation of the opening of the frame body 41, and when the seat tube clamp 53 locks the frame body 41, the frame body 41 clamps the telescopic rod 42 to lock the telescopic rod 42 and the frame body 41. The tester clamps and unlocks through the rotary seat pipe clamp 53, is convenient to operate, and can realize stepless adjustment of the telescopic rod 42. Finally, the stability of the relative position of the sounding device and the testing device is improved, so that the use flexibility of the sounding device during testing is improved.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A test mask structure, comprising: the device comprises a baffle plate (1) for fixing a sounding device, a platform (2) for placing a testing device, a fixing frame (3) for mounting the baffle plate (1) and a telescopic frame (4) for driving the platform (2) to lift; the fixed frame (3) and the telescopic frame (4) are placed on the grid ground of the anechoic chamber, and the telescopic frame (4) is close to one side of the baffle plate (1);

the telescopic frame (4) comprises a frame body (41) placed on the grid ground, a movable insertion connection part, a telescopic rod (42) of the frame body (41) and a locking part (5) used for locking the frame body (41) and the telescopic rod (42), the platform (2) is fixedly connected to one end of the telescopic rod (42), and the telescopic rod (42) slides to drive the platform (2) to lift.

2. A test mask structure according to claim 1, wherein: locking piece (5) include spring catch (51), locking spring (52) a plurality of fixed orifices (411) have been seted up to support body (41) one side, fixed orifices (411) are followed the even interval of length of support body (41) sets up, confession has been seted up in telescopic link (42) spring catch (51) and recess (421) of locking spring (52) holding, locking spring (52) are located spring catch (51) and between telescopic link (42), spring catch (51) are passed through the elasticity of locking spring (52) is pegged graft fixed orifices (411), it is right telescopic link (42) with support body (41) are locked.

3. A test mask structure according to claim 1, wherein: locking piece (5) including fixed connection in sit pipe clamp (53) of support body (41) one side, just sit pipe clamp (53) are located support body (41) with telescopic link (42) grafting one end, slot (412) that can increase support body (41) elastic deformation volume are seted up in support body (41), work as sit pipe clamp (53) locking during support body (41), make support body (41) press from both sides tightly telescopic link (42), it is right telescopic link (42) with support body (41) lock.

4. A test mask structure according to claim 2 or 3, wherein: the telescopic frame (4) further comprises a limiting part (6), the side face of the frame body (41) is provided with a sliding hole (413) for the limiting part to slide, the limiting part (6) is fixedly connected with the telescopic rod (42), the sliding hole (413) is arranged along the length direction of the frame body (41), and the limiting part (6) is abutted to the hole walls of the two sides of the sliding hole (413) for limiting.

5. A test mask structure according to claim 1, wherein: the fixing frame (3) comprises a cross rod (31), a vertical rod (32) fixedly connected with the cross rod (31) and inclined supporting rods (33) with two ends respectively connected with the cross rod (31) and the vertical rod (32), inserting portions (311) which are matched with grid ground grids in an inserting mode extend downwards from two ends of the cross rod (31), and the inserting portions (311) are inserted into the grids to enable the fixing frame (3) to be fixed on the grid ground.

6. A test mask structure according to claim 5, wherein: montant (32) are followed the length direction of montant (32) is run through and has been seted up draw-in groove (321), baffle (1) both sides can be followed the cell wall of draw-in groove (321) slides and butt in horizontal pole (31), in order to right the installation of carrying out the joint of baffle (1).

7. A test mask structure according to claim 2, wherein: the spring pin (51) comprises a pin body (511) and a limiting boss (512) fixedly connected to one end of the pin body (511), and the other end of the pin body (511) is arranged in a round angle mode.

8. A test mask structure according to claim 1, wherein: and one side of the platform (2) far away from the telescopic rod (42) is provided with a mounting groove (21) for accommodating the testing device.