CN220711657U

CN220711657U - Audio test fixture

Info

Publication number: CN220711657U
Application number: CN202322274928.6U
Authority: CN
Inventors: 王鹤立
Original assignee: Huizhou Hongyitong Intelligent Technology Co ltd
Current assignee: Huizhou Hongyitong Intelligent Technology Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-04-02
Anticipated expiration: 2033-08-23

Abstract

The utility model discloses an audio test fixture, which comprises a bracket, a radio assembly and a bearing plate; the radio assembly is fixed on the pair of connecting rods; a pair of support plates are vertically arranged on the bottom plate, the support plates are provided with guide rails, and the bearing plates are provided with a pair of sliding blocks which are in one-to-one corresponding sliding connection with the guide rails; at least one fixing groove is arranged on one side of the bearing plate far away from the bottom plate, and the fixing groove is used for fixing the broadcasting device to be tested; the bearing plate can slide along the guide rail through the sliding block so as to move the broadcasting device to be measured placed on the fixed groove to the position right below the radio receiving assembly. According to the audio test jig provided by the utility model, when the to-be-tested broadcasting device is required to be tested, the bearing plate is pushed into the bracket, so that the to-be-tested broadcasting device placed in the fixed groove is automatically positioned right below the radio component, the test is conveniently performed, the to-be-tested loudspeaker is not required to be placed nearby the microphone by manpower, the placement position is more accurate, the structure is simpler, and the operation is simpler and more convenient.

Description

Audio test fixture

[ field of technology ]

The utility model relates to the technical field of audio test equipment, in particular to an audio test jig.

[ background Art ]

At present, broadcast devices such as speakers need to be tested firstly during assembly. For example, a loudspeaker is placed in a sound-proof box, and then a microphone with known parameters is used for receiving sound of the loudspeaker at a preset position, so as to test the sound production effect of the loudspeaker. However, the existing audio test fixture is complex in structure, and the loudspeaker to be tested needs to be placed nearby the microphone manually, so that the test operation is complicated.

In view of the above, it is necessary to provide an audio test fixture to overcome the above-mentioned drawbacks.

[ utility model ]

The utility model aims to provide an audio test fixture, which aims to solve the problem that the existing audio test fixture is complex in structure and simplify the structure and test operation.

In order to achieve the above objective, the present utility model provides an audio test fixture, which includes a bracket, a radio assembly and a carrier plate; the support comprises a bottom plate, a first rectangular frame and a second rectangular frame which are vertically fixed on the bottom plate and are arranged in parallel at intervals, one side, far away from the bottom plate, of the first rectangular frame and the second rectangular frame is connected through a pair of connecting rods which are arranged in parallel at intervals, and the radio receiving assembly is fixed on the pair of connecting rods; the bottom plate is vertically provided with a pair of support plates which are arranged in parallel at intervals, one side of each support plate, which is far away from or close to each other, is provided with a guide rail, and one side of each bearing plate, which is close to the bottom plate, is provided with a pair of sliding blocks which are in one-to-one corresponding sliding connection with the guide rails; at least one fixing groove is formed in one side, far away from the bottom plate, of the bearing plate, and the fixing groove is used for fixing a broadcasting device to be tested; the bearing plate can slide along the guide rail through the sliding block so as to move the broadcasting device to be measured placed on the fixed groove to the position right below the radio receiving assembly.

In a preferred embodiment, the radio receiving assembly comprises a guide rod, a pair of first connecting blocks respectively arranged at two ends of the guide rod, a second connecting block arranged on the guide rod and between the pair of first connecting blocks, and a microphone arranged on the second connecting block; each first connecting block is provided with a first communication hole, and the first connecting blocks are sleeved on a pair of connecting rods in a one-to-one correspondence manner through the first communication holes so that the guide rods can slide along the connecting rods; the second connecting block is provided with a second communication hole, and the second connecting block is sleeved on the guide rod through the second communication hole so as to slide on the guide rod.

In a preferred embodiment, the second connecting block is provided with a fixing hole along the direction approaching to or separating from the bottom plate, the fixing hole is clamped with an adjusting block, and one end of the microphone is fixed on the adjusting block; the adjusting block can move up and down along the fixing hole so as to change the height of the microphone relative to the bottom plate.

In a preferred embodiment, the guide rail is provided on a side of the support plate remote from the base plate.

In a preferred embodiment, the bearing plate is detachably connected with the corresponding sliding block through a fixed block; the fixed block comprises a horizontal block and a vertical block extending vertically from the edge of the horizontal block, the horizontal block is fixed on one side, close to the bottom plate, of the bearing plate through a plurality of screws, and the vertical block is connected with the sliding block through a plurality of screws.

In a preferred embodiment, the support plate and the bottom plate are connected with each other through at least one first reinforcing rib block; the first rectangular frame and the second rectangular frame are connected with the bottom plate through at least one second reinforcing rib block.

In a preferred embodiment, the bearing plate is further provided with a containing groove communicated with the fixing groove near the fixing groove, an interface fixing block is arranged at the bottom of the containing groove, a connector lug is clamped in the interface fixing block, and the connector lug is used for being electrically connected with a broadcasting device to be tested placed in the fixing groove.

In a preferred embodiment, the first rectangular frame or the second rectangular frame is further provided with a supporting plate, and a sound box is arranged on the supporting plate and is used for carrying out sound reception correction on the microphone.

According to the audio test jig, the connecting rod is arranged above the bracket, so that the radio component is fixed on the connecting rod, the bearing plate is slidably arranged on the pair of support plates, and when a tested or to-be-tested broadcasting device is required to be taken and placed on the bearing plate, the bearing plate is only required to be pulled out along the guide rail, so that the operation is simple and convenient; when needs test to the broadcast device that awaits measuring, push the loading board in the support, make the broadcast device that awaits measuring of placing in the fixed slot automatic be located under the radio reception subassembly to test, need not to place the loudspeaker that awaits measuring in the vicinity of microphone through the manual work, and the position of placing is more accurate, and the structure is simpler, and the operation is simpler and more convenient.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of an audio test fixture provided by the present utility model;

FIG. 2 is a perspective view of the audio test fixture shown in FIG. 1 at another angle;

fig. 3 is a perspective view of the audio test fixture shown in fig. 1 at another angle.

Reference numerals in the drawings: 100. an audio test fixture; 200. a broadcasting device; 10. a bracket; 11. a bottom plate; 111. a first stiffener block; 112. a second reinforcing rib block; 12. a first rectangular frame; 13. a second rectangular frame; 14. a connecting rod; 15. a bearing plate; 20. a radio assembly; 21. a guide rod; 22. a first connection block; 23. a second connection block; 231. a fixing hole; 232. an adjusting block; 24. a microphone; 30. a carrying plate; 31. a fixing groove; 32. a slide block; 33. a fixed block; 331. a horizontal block; 332. a vertical block; 34. a receiving groove; 35. an interface fixing block; 36. a connector lug; 40. a support plate; 41. a guide rail; 50. and a sound box.

[ detailed description ] of the utility model

In order to make the objects, technical solutions and advantageous technical effects of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and detailed description. It should be understood that the detailed description is intended to illustrate the utility model, and not to limit the utility model.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In an embodiment of the present utility model, an audio test fixture 100 is provided for performing an audio test on a broadcasting device 200 such as a speaker, so as to test whether the sound emitted by the broadcasting device 200 meets a preset requirement.

As shown in fig. 1-3, the audio test fixture 100 includes a bracket 10, a sound receiving assembly 20 and a carrying plate 30.

The bracket 10 comprises a bottom plate 11, a first rectangular frame 12 and a second rectangular frame 13 which are vertically fixed on the bottom plate 11 and are arranged in parallel at intervals. The first rectangular frame 12 and the side of the second rectangular frame 13 remote from the bottom plate 11 are connected by a pair of parallel, spaced apart connecting bars 14. Therefore, the bottom plate 11, the first rectangular frame 12, the second rectangular frame 13 and the pair of connecting rods 14 together enclose a rectangular frame structure, and the bottom plate 11 is disposed at the bottom of the frame structure. Wherein the base plate 11 may be secured to the floor or other equipment counter top.

The radio assembly 20 is secured to a pair of the connecting rods 14. I.e. the radio assembly 20 is located above the base plate 11.

Specifically, the sound receiving assembly 20 includes a guide rod 21, a pair of first connection blocks 22 disposed at two ends of the guide rod 21, a second connection block 23 disposed on the guide rod 21 and between the pair of first connection blocks 22, and a microphone 24 disposed on the second connection block 23. Accordingly, the pair of first connection blocks 22 are connected to the pair of connection bars 14, respectively, and the second connection block 23 is connected to the guide bar 21. Each first connecting block 22 is provided with a first communication hole (not shown), and the first connecting blocks 22 are sleeved on the pair of connecting rods 14 in a one-to-one correspondence manner through the first communication holes, so that the guide rods 21 can slide along the connecting rods 14. The second connection block 23 is provided with a second communication hole (not shown in the figure), and the second connection block 23 is sleeved on the guide rod 21 through the second communication hole so as to be capable of sliding on the guide rod 21.

It should be noted that, the sliding direction of the guide rod 21 is perpendicular to the sliding direction of the second connecting block 23, and may be all located on the same horizontal plane. For example, the sliding direction of the guide rod 21 may be defined as the X-axis, and the sliding direction of the second connection block 23 may be defined as the Y-axis.

Further, the second connection block 23 is provided with a fixing hole 231 in a direction approaching or separating from the base plate 11. The fixing hole 231 is clamped with an adjusting block 232, and one end (here, the sound receiving end) of the microphone 24 is fixed on the adjusting block 232. The adjustment block 232 may be moved up and down along the fixing hole 231 to change the height of the microphone 24 with respect to the base plate 11. Therefore, any position of the adjusting block 232 within a predetermined range of the horizontal plane can be adjusted by adjusting the positions of the guide bar 21 and the second connection block 23, and the height of the microphone 24 can be changed by adjusting the adjusting block 232, and the direction of the height adjustment can be defined as the Z-axis. Thus, the position of the sound receiving end of the microphone 24 in the stand 10 can be adjusted according to the test requirements.

In the embodiment of the present utility model, a pair of support plates 40 are vertically provided on the base plate 11 in parallel and spaced apart relation. The pair of support plates 40 are provided with guide rails 41 on sides distant from or close to each other. Further, the guide rail 41 is provided at a side of the support plate 40 remote from the bottom plate 11.

The side of the carrying plate 30 away from the bottom plate 11 is provided with at least one fixing groove 31, and the fixing groove 31 is used for fixing the broadcasting device 200 to be tested, such as a loudspeaker. The side of the bearing plate 30 near the bottom plate 11 is provided with a pair of sliding blocks 32 which are in one-to-one sliding connection with the guide rails 41. The carrying board 30 can slide along the guide rail 41 through the sliding block 32 to move the broadcasting device 200 to be tested placed on the fixing slot 31 to the position right below the radio receiving assembly 20.

Specifically, the carrier plate 30 is detachably connected to the corresponding slider 32 through a fixing block 33. The fixed block 33 includes a horizontal block 331 and a vertical block 332 extending vertically from an edge of the horizontal block 331. The horizontal block 331 is fixed to a side of the bearing plate 30 near the bottom plate 11 through a plurality of screws, and the vertical block 332 is connected to the slider 32 through a plurality of screws.

Further, the supporting plate 40 is connected with the bottom plate 11 through at least one first reinforcing rib block 111, so as to improve the connection strength between the supporting plate 40 and the bottom plate 11 and avoid the supporting plate 40 from tilting. The first rectangular frame 12 and the second rectangular frame 13 are connected with the bottom plate 11 through at least one second reinforcing rib block 112 so as to improve the connection strength between the first rectangular frame 12 and the second rectangular frame 13 and the bottom plate 11.

In some embodiments, the carrier plate 30 is further provided with a receiving slot 34 near the fixing slot 31 and communicated with the fixing slot 31, an interface fixing block 35 is disposed at the bottom of the receiving slot 34, a connector lug 36 is clamped in the interface fixing block 35, and the connector lug 36 is electrically connected with the broadcasting device 200 to be tested placed in the fixing slot 31, thereby improving the convenience of testing. Wherein, the height of the interface fixing block 35 is smaller than or equal to the depth of the accommodating groove 34.

In some embodiments, the first rectangular frame 12 or the second rectangular frame 13 is further provided with a bearing plate 15. The supporting plate 15 is provided with a sound box 50, and the sound box 50 is used for carrying out sound receiving correction on the microphone 24. The sound box 50 is a standard generating device, and can emit sound with standardized frequencies and loudness, so as to calibrate the sound receiving performance of the microphone 24 and improve the testing accuracy.

In summary, according to the audio test fixture 100 provided by the present utility model, the connecting rod 14 is disposed above the bracket 10, so that the radio receiving assembly 20 is fixed on the connecting rod 14, and the carrying plate 30 is slidably disposed on the pair of supporting plates 40, so that when the tested or to-be-tested broadcasting device 200 needs to be taken out from the carrying plate 30, the carrying plate 30 only needs to be pulled out along the guide rail 41, and the operation is simple and convenient; when the to-be-tested broadcasting device 200 needs to be tested, the bearing plate 30 is pushed into the support 10, so that the to-be-tested broadcasting device 200 placed in the fixing groove 31 is automatically located under the radio assembly 20, the to-be-tested broadcasting device is conveniently tested, a to-be-tested loudspeaker and the like do not need to be placed nearby the microphone 24 manually, the placed position is more accurate, the structure is simpler, and the operation is simpler and more convenient.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims

1. An audio test fixture is characterized by comprising a bracket, a radio assembly and a bearing plate; the support comprises a bottom plate, a first rectangular frame and a second rectangular frame which are vertically fixed on the bottom plate and are arranged in parallel at intervals, one side, far away from the bottom plate, of the first rectangular frame and the second rectangular frame is connected through a pair of connecting rods which are arranged in parallel at intervals, and the radio receiving assembly is fixed on the pair of connecting rods; the bottom plate is vertically provided with a pair of support plates which are arranged in parallel at intervals, one side of each support plate, which is far away from or close to each other, is provided with a guide rail, and one side of each bearing plate, which is close to the bottom plate, is provided with a pair of sliding blocks which are in one-to-one corresponding sliding connection with the guide rails; at least one fixing groove is formed in one side, far away from the bottom plate, of the bearing plate, and the fixing groove is used for fixing a broadcasting device to be tested; the bearing plate can slide along the guide rail through the sliding block so as to move the broadcasting device to be measured placed on the fixed groove to the position right below the radio receiving assembly.

2. The audio test fixture of claim 1, wherein the sound receiving assembly comprises a guide rod, a pair of first connecting blocks respectively arranged at two ends of the guide rod, a second connecting block arranged on the guide rod and between the pair of first connecting blocks, and a microphone arranged on the second connecting block; each first connecting block is provided with a first communication hole, and the first connecting blocks are sleeved on a pair of connecting rods in a one-to-one correspondence manner through the first communication holes so that the guide rods can slide along the connecting rods; the second connecting block is provided with a second communication hole, and the second connecting block is sleeved on the guide rod through the second communication hole so as to slide on the guide rod.

3. The audio test fixture of claim 2, wherein the second connecting block is provided with a fixing hole along a direction approaching or separating from the bottom plate, the fixing hole is clamped with an adjusting block, and one end of the microphone is fixed on the adjusting block; the adjusting block can move up and down along the fixing hole so as to change the height of the microphone relative to the bottom plate.

4. The audio test fixture of claim 1, wherein the guide rail is disposed on a side of the support plate away from the base plate.

5. The audio test fixture of claim 1, wherein the carrier plate is detachably connected with the corresponding slide block through a fixed block; the fixed block comprises a horizontal block and a vertical block extending vertically from the edge of the horizontal block, the horizontal block is fixed on one side, close to the bottom plate, of the bearing plate through a plurality of screws, and the vertical block is connected with the sliding block through a plurality of screws.

6. The audio test fixture of claim 1, wherein the support plate and the base plate are connected by at least one first stiffener block to the base plate; the first rectangular frame and the second rectangular frame are connected with the bottom plate through at least one second reinforcing rib block.

7. The audio test fixture of claim 1, wherein the carrier plate is further provided with a receiving groove adjacent to the fixing groove and communicated with the fixing groove, an interface fixing block is arranged at the bottom of the receiving groove, and a connector lug is clamped in the interface fixing block and is used for being electrically connected with a to-be-tested broadcasting device placed in the fixing groove.

8. The audio test fixture of claim 2, wherein the first rectangular frame or the second rectangular frame is further provided with a support plate, and a sound box is arranged on the support plate and is used for performing sound reception correction on the microphone.