TWM616427U - Measurement fixture - Google Patents

Abstract

A measuring fixture is suitable for setting up a speaker and a detector. The measuring fixture includes a base and a rotating seat. The base is provided for the detector and has a first positioning structure. The rotating base is rotatably arranged on the base around a rotating shaft, the rotating base has a rotating base rotatably arranged on the base and for the speaker, and a rotating base connected to the rotating base A turntable, the turntable has a plurality of second positioning structures, and a plurality of angle scale marks corresponding to the second positioning structures, and the first positioning of the base during the rotation of the rotating base relative to the base The structure can be matched with corresponding concave and convex of any of the second positioning structures, so that the rotating seat can be selectively positioned at a corresponding angular position.

Description

Measuring fixture

This model relates to a measuring fixture, in particular to a measuring fixture used to measure the directivity of a loudspeaker.

Generally speaking, when measuring the directivity of a loudspeaker, the loudspeaker needs to be acoustically measured from different angles, so the measurement process is complicated and usually requires the use of professional instruments, which are usually expensive to build And it is difficult to carry.

Therefore, one of the objectives of the present invention is to provide a measuring fixture that can improve at least one of the shortcomings in the prior art.

Therefore, in some embodiments, the measuring fixture of the present invention is suitable for providing a detector and a speaker. The measuring fixture includes a base and a rotating base. The base is provided for the detector and has a first positioning structure. The rotating base is rotatably arranged on the base around a rotating shaft, the rotating base has a rotating base rotatably arranged on the base and for the speaker, and a rotating base connected to the rotating base A turntable, the turntable has a plurality of second positioning structures, and a plurality of angle scale marks corresponding to the second positioning structures, and the first positioning of the base during the rotation of the rotating base relative to the base The structure can be concave and convex corresponding to any of the second positioning structures Cooperate to enable the rotating seat to be selectively positioned at the corresponding angular position.

In some embodiments, the base includes a base body, and a supporting base body for the detector to be installed. A plurality of first setting structures arranged in a measurement direction of the shaft, the bearing base body has a second setting structure, and the second setting structure of the bearing base body can be detachably provided on the first setting structures of the base body Any one of the setup structure.

In some embodiments, the base body has a plate-like structure parallel to the measurement direction, and the rotation axis of the rotating seat is perpendicular to the plate surface of the base body.

In some embodiments, each of the first setting structure has a plurality of setting holes, and the second setting structure has a plurality of setting posts corresponding to the setting holes.

In some embodiments, each of the first setting structure further has a first fixing hole, the second setting structure further has a second fixing hole, and the first fixing hole and the second fixing hole are used for screws. Set and lock with nut.

In some embodiments, the base further includes a positioning member having a setting portion provided on the base body, a positioning portion having the first positioning structure, and connected to the setting portion and the At least one elastic portion between the positioning portions, when the first positioning structure of the base does not correspond to the concave-convex fit of any of the second positioning structures, the positioning portion is displaced relative to the setting portion, and The elastic part is compressed or stretched to provide an elastic restoring force to the positioning part.

In some embodiments, the setting part has a sliding groove, and the positioning part further has a sliding block slidably arranged in the sliding groove.

In some embodiments, the first positioning structure has a bump, and each of the second positioning structures has a groove corresponding to the bump.

In some embodiments, the positioning portion is formed with a window hole that can expose any one of the angle scale marks, and the exposed angle scale mark corresponds to one of the second positioning structures One of the concave-convex matching with the first positioning structure.

In some implementation aspects, the distances between the first arrangement structures and the speaker are not completely the same.

The new measuring jig meets the needs of measuring the acoustic performance of the loudspeaker from different angles through the base provided for the detector and the rotating seat provided for the loudspeaker. Moreover, by the concave-convex cooperation of the first positioning structure of the base and the second positioning structure of the rotating base, the rotating base can be positioned at a corresponding angular position. Furthermore, the structure of the measuring jig is simpler than that of a professional instrument, so that its cost is lower and its portability is better. In addition, through the angle scale marks corresponding to the second positioning structures, the user can judge the angular position of the rotating base.

100: Measuring fixture

1: pedestal

11: Base body

111: First setting structure

111a: Setting hole

111b: The first fixing hole

112: round hole

12: Carrier body

121: Second setting structure

121a: set column

121b: second fixing hole

122: Detector Setting Department

123: Piercing

13: positioning parts

130: positioning block

131: Setting Department

131a: Chute

132: Positioning Department

132a: The first positioning structure

1321: bump

132b: Slider

132c: Window hole

133: Elastic part

2: Rotating seat

21: Rotating seat

210: Disc Department

211: Speaker Setting Department

22: turntable

221: Containment Slot

222: second positioning structure

222a: Groove

223: Angle scale indication

200: Detector

300: speaker

400: Screw

500: Nut

D1: Measuring direction

D2: Up and down direction

A: Rotating shaft

The other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a perspective view of an embodiment of the new measurement fixture; FIG. 2 is a perspective view of the embodiment Exploded view; Figure 3 is a top view of this embodiment; Figures 4 to 6 are a plurality of top views of this embodiment to illustrate the use of this embodiment; and Fig. 7 is a perspective view of a modified embodiment of the new measuring jig.

1 to 3, an embodiment of the new measuring jig 100 is suitable for providing a speaker 300 and a detector 200. The detector 200 can be a microphone, for example. The measuring jig 100 includes a base 1 and a rotating base 2.

The base 1 includes a base body 11 and a supporting base body 12 for the detector 200 to be installed. The base body 11 has a plurality of first arrangement structures 111 arranged along a measurement direction D1, and the positions of the plurality of first arrangement structures 111 are not exactly the same distance from the speaker 300, so that the detector 200 can be measured The acoustic parameters of the speaker 300 at different distances are measured. The supporting base body 12 has a second setting structure 121, and the second setting structure 121 of the supporting base body 12 can be detachably provided in any one of the first setting structures 111 of the base body 11. In this embodiment, each first setting structure 111 has a plurality of setting holes 111a penetrating up and down along an up-down direction D2 perpendicular to the measurement direction D1, and the second setting structure 121 has a downward extension and is connected to the The setting hole 111a corresponds to a plurality of matching setting posts 121a, but the first setting structure 111 can also have the setting posts 121a, and the second setting structure 121 can also have the setting holes 111a. As a limit. In addition, for example, each first setting structure 111 of the base body 11 further has a first fixing hole 111b, and the second setting structure 121 of the supporting base body 12 further has a second fixing hole 121b. The first fixing hole 111b and the second fixing hole 121b is provided with a screw 400 and a nut 500 for locking, thereby fixing the supporting base body 12 to the base body 11. The carrier body 12 also has a detector setting portion 122 on the top and in a U-shaped groove shape for the detector 200 to be installed, and a perforation 123 adjacent to the detector setting portion 122, and the perforation 123 is for beaming A belt (not shown) is passed through to tighten the detector 200 and fix the position.

The rotating base 2 is rotatably disposed on the base body 11 of the base 1 around a rotating axis A as the axis, and the rotating axis A is parallel to the vertical direction D2 and perpendicular to the measuring direction D1. In addition, in this embodiment, the base body 11 has a plate-like structure parallel to the measurement direction D1, and the rotation axis A of the rotating seat 2 is perpendicular to the plate surface of the base body 11, but should not be This is a limitation. The base body 11 has a circular hole 112 that is opposite to each other along the measurement direction D1 and the bearing base body 12 and penetrates along the rotation axis A. The rotation base 2 has a base rotatably disposed on the base 1 The circular hole 112 of the base 11 extends upward to provide a rotating base 21 for the speaker 300, and a turntable connected to the bottom of the rotating base 21 and located below the base 11 of the base 1 twenty two. The rotating base body 21 has a circular plate portion 210 located at the bottom and rotatably disposed in the circular hole 112 of the base body 11 of the base 1, and a speaker setting portion 211 located at the top and provided for the speaker 300. The turntable For example, 22 is connected to the bottom surface of the circular plate portion 210. The height of the speaker installation portion 211 roughly corresponds to the height of the detector installation portion 122, and the two are opposite to each other along the measurement direction D1, so that the speaker 300 installed in the measurement jig 100 and The detectors 200 are opposite to each other along the measurement direction D1.

The base 1 further includes a positioning member 13 having a setting portion 131 provided on the base body 11 adjacent to the rotating seat 2, a positioning portion 132 having a positioning block 130 at the bottom, and a connection Two elastic portions 133 between the setting portion 131 and the positioning portion 132, the positioning block 130 is formed with A first positioning structure 132a. The turntable 22 has a fan-shaped plate structure that expands toward the positioning member 13 and is parallel to the base body 11 of the base 1. The turntable 22 has a bottom portion formed on the top surface and partially accommodating the positioning member 13 A receiving groove 221, a plurality of second positioning structures 222 formed in the receiving groove 221 and corresponding to the first positioning structure 132a, and a plurality of angle scale marks formed on the top surface corresponding to the second positioning structures 222 223. During the rotation of the rotating base 2 relative to the base 1, the first positioning structure 132a of the base 1 can be concave and convexly matched with any of the second positioning structures 222 to make the rotation The seat 2 is selectively positioned at a corresponding angular position. In this embodiment, the first positioning structure 132 a has a protrusion 1321, and each second positioning structure 222 has a groove 222 a corresponding to the protrusion 1321. In addition, through the angle scale marks 223 corresponding to the second positioning structures 222, the user can determine the angular position of the rotating base 2.

In detail, the setting portion 131 has a sliding groove 131a, and the positioning portion 132 also has a sliding block 132b slidably disposed in the sliding groove 131a. When the first positioning structure 132a of the base 1 is not matched with the corresponding concave and convex of any of the second positioning structures 222, the positioning portion 132 is opposed to the sliding groove 131a and the sliding block 132b. When the setting portion 131 is displaced, the elastic portion 133 is compressed to provide an elastic restoring force to the positioning portion 132. It should be noted that in other embodiments, according to the protrusions 1321 and 1321 of the first positioning structure 132a Depending on the position of the groove 222 a of the second positioning structure 222, the elastic portion 133 may also be stretched to provide an elastic restoring force to the positioning portion 132.

3 to 6, in the use of this embodiment, when the angle of the rotating seat 2 needs to be adjusted, the positioning portion 132 can be pressed toward the setting portion 131 first, so that the first positioning structure 132a The bump 1321 comes out of the corresponding groove 222a of the second positioning structure 222 initially, as shown in FIG. 4. Again Rotate the turntable 22 to turn the rotating base 2 to a desired angle, as shown in FIG. 5. Then let go of the positioning portion 132, let the elastic restoring force provided by the elastic portion 133 drive the positioning portion 132 to reset, and make the protrusion 1321 of the first positioning structure 132a re-enter the corresponding groove of the second positioning structure 222. In 222a, the angular position of the rotating base 2 is fixed, as shown in FIG. 6. Thereby, the rotating base 2 can be positioned at a desired angular position, so that the speaker 300 disposed on the rotating base 2 can face the detector 200 at various angles, thereby satisfying the measurement of the acoustic performance of the speaker 300 Directional demand. In addition, by the assembly of the first arrangement structure 111 of the base body 11 and the second arrangement structure 121 of the supporting base body 12, the distance of the supporting base body 12 relative to the rotating base 2 can be adjusted to adjust the The distance between the speaker 300 and the detector 200 changes measurement parameters. However, in other implementations, the base body 11 and the carrier body 12 may also be integrated and non-detachable. The examples are limitations. Furthermore, the structure of the measuring jig 100 is simpler than that of a professional instrument, so that it has a lower cost and better portability.

In addition, it is worth mentioning that in this embodiment, the positioning portion 132 is also formed with a window hole 132c located above the turntable 22, and the window hole 132c can expose any one of the angle scale marks 223 It is shown that the exposed angle scale mark 223 corresponds to one of the second positioning structures 222 that is concave-convex matched with the first positioning structure 132a. This allows the user to more easily determine the angular position of the rotating base 2. Furthermore, the base 1 and the rotating seat 2 in this embodiment are assembled from plates, for example, they can be assembled from plastic plates or acrylic plates, which can further reduce the cost. , And increase portability.

With reference to FIG. 7, in a modified embodiment, the speaker setting portion 211 of the rotating base 21 may also be a hanging structure. Further, whether it is the speaker setting of the rotating base 21 Either the portion 211 or the detector setting portion 122 of the carrier body 12 can be changed according to requirements, and is not limited to the above-mentioned embodiment.

To sum up, the new measuring jig 100 of the present invention has the base 1 provided for the detector 200 and the rotating seat 2 provided for the speaker 300, which satisfies the acoustic performance of the speaker 300 from different angles. The need for measurement. Moreover, by the concave-convex cooperation of the first positioning structure 132a of the base 1 and the second positioning structure 222 of the rotating base 2, the rotating base 2 can be positioned at a corresponding angular position. Furthermore, the structure of the measuring jig 100 is simpler than that of a professional instrument, so that it has a lower cost and better portability. In addition, through the angle scale marks 223 corresponding to the second positioning structures 222, the user can determine the angular position of the rotating base 2.

However, the above are only examples of the present model, and should not be used to limit the scope of implementation of the present model, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

100: Measuring fixture

1: pedestal

11: Base body

111: First setting structure

111a: Setting hole

111b: The first fixing hole

112: round hole

12: Carrier body

121: Second setting structure

121a: set column

121b: second fixing hole

122: Detector Setting Department

123: Piercing

13: positioning parts

130: positioning block

131: Setting Department

131a: Chute

132: Positioning Department

132a: The first positioning structure

1321: bump

132b: Slider

132c: Window hole

133: Elastic part

2: Rotating seat

21: Rotating seat

210: Disc Department

211: Speaker Setting Department

22: turntable

221: Containment Slot

222: second positioning structure

222a: Groove

223: Angle scale indication

400: Screw

500: Nut

D1: Measuring direction

D2: Up and down direction

Claims (10)

A measuring fixture suitable for setting up a speaker and a detector. The measuring fixture includes: A base for setting the detector and having a first positioning structure; and A rotating base is rotatably arranged on the base around a rotating shaft, the rotating base has a rotating base rotatably arranged on the base and for the speaker, and is connected to the rotating base A turntable having a plurality of second positioning structures and a plurality of angle scale marks corresponding to the second positioning structures respectively. During the rotation of the rotating base relative to the base, the first of the base The positioning structure can be matched with corresponding concave and convex of any of the second positioning structures, so that the rotating seat can be selectively positioned at a corresponding angular position. The measurement jig according to claim 1, wherein the base includes a base body and a bearing base body for the detector to be installed, the rotating base is disposed on the base body, and the base body There is a plurality of first arrangement structures arranged along a measurement direction perpendicular to the rotation axis, the bearing base body has a second arrangement structure, and the second arrangement structure of the bearing base body can be detachably arranged on the Any one of the first arrangement structures of the base body. The measuring jig according to claim 2, wherein the base body has a plate-like structure parallel to the measuring direction, and the rotation axis of the rotating seat is perpendicular to the plate surface of the base body. The measurement jig according to claim 2, wherein each of the first setting structure has a plurality of setting holes, and the second setting structure has a plurality of setting posts corresponding to the setting holes. According to the measurement jig according to claim 4, each of the first setting structure further has a first fixing hole, the second setting structure further has a second fixing hole, the first fixing hole and the first fixing hole Two fixing holes are used for screw and nut setting and locking. The measurement jig according to claim 2, wherein the base further includes a positioning member having a setting portion provided on the base body, a positioning portion having the first positioning structure, and At least one elastic portion connected between the setting portion and the positioning portion, when the first positioning structure of the base does not correspond to the concave-convex fit of any of the second positioning structures, the positioning portion opposes The setting part is displaced, and the elastic part is compressed or stretched to provide an elastic restoring force to the positioning part. The measuring jig according to claim 6, wherein the setting part has a sliding groove, and the positioning part further has a sliding block slidably arranged in the sliding groove. The measurement jig according to claim 6, wherein the first positioning structure has a bump, and each of the second positioning structures has a groove corresponding to the bump. The measurement jig according to claim 6, wherein the positioning portion is formed with a window hole, and the window hole can expose any one of the angle scale marks, and the exposed angle scale mark corresponds to One of the second positioning structures that is concave-convex matched with the first positioning structure. The measurement fixture according to claim 2, wherein the distances between the first arrangement structures and the speaker are not completely the same.

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