CN212585967U - Drawing force test fixture and device - Google Patents

Abstract

The utility model discloses a drawing force test fixture and a device, belonging to the technical field of earphone test, wherein the drawing force test fixture comprises an earplug fixing component, comprising a connecting part and a chock, one end of the connecting part is connected with the chock, the other end of the connecting part is connected with a test machine, and an earplug sleeve of an in-ear earphone is fixed on the chock; the body fixing component comprises a base, a groove is formed in the top of the base, and an earphone body of the in-ear earphone is fixed in the groove; the sliding table assembly is connected with the bottom of the base and used for driving the base to move in the horizontal direction, so that the mounting groove in the earphone body is opposite to the flange on the earplug in the vertical direction. The utility model provides a drawing force test fixture and device can realize the test to earplug and this body coupling power of earphone, then confirm the requirement is satisfied to the in-ear earphone after the coupling power between the two reaches the requirement, has guaranteed the quality of in-ear earphone.

Description

Drawing force test fixture and device

Technical Field

The utility model relates to an earphone test technical field especially relates to a drawing force test fixture and device.

Background

The in-ear earphone is to put the sound outlet end into the outer ear of the user and to adapt to the outer ear contour of different users by the elastic deformation of the ear plug. The earphone uses the earplug to seal the outer ear of the user so as to isolate the external sound and improve the sound quality.

Currently, in-ear earphones are usually configured with three types of earplugs, namely large, medium and small sizes, so as to adapt to the auricles of the outer ears of different people. The earplugs are generally selected and adapted to be mounted by a user according to the size of the auricle of the external ear. When the earplugs are installed, the earplugs need to be clamped into the earphone body, and if the earplugs need to be clamped into the earphone body, a person with small strength cannot install the earplugs successfully, so that user experience is poor; if the force of going into is too little then the earplug is when using easy and earphone body separation, and when the in-ear earphone was wireless bluetooth headset, will drop the earphone body easily and break, influences user's normal use. Therefore, the connecting force between the earplug and the earphone body needs to be tested, but there are few tools for clamping the earplug and the earphone body to test the connecting force therebetween in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drawing force test fixture and device can realize the test to earplug and this body coupling power of earphone, then confirms the requirement is satisfied to the in-ear earphone after the coupling power between the two reaches the requirement, has guaranteed the quality of in-ear earphone.

As the conception, the utility model adopts the technical proposal that:

a pull force test fixture, comprising:

the earplug fixing component comprises a connecting part and a plug block, wherein one end of the connecting part is connected with the plug block, the other end of the connecting part is connected with the testing machine, and an earplug of the in-ear earphone is fixedly sleeved on the plug block;

the body fixing component comprises a base, a groove is formed in the top of the base, and an earphone body of the in-ear earphone is fixed in the groove;

the sliding table assembly is connected with the bottom of the base and used for driving the base to move in the horizontal direction, so that the mounting groove in the earphone body is opposite to the flange on the earplug in the vertical direction.

Optionally, the connecting portion includes a pull rod and a clamping jaw structure, a first end of the pull rod is connected with the testing machine, a first groove and a second groove are respectively formed in the upper end and the lower end of the clamping jaw structure, a second end of the pull rod is installed in the first groove, the clamping jaw structure can rotate by taking the pull rod as a rotation center, and the plug block is installed in the second groove.

Optionally, the second end of the pull rod and the first groove are both hemispherical.

Optionally, the clamping jaw structure includes a first clamping portion, a second clamping portion and a first rotating shaft, the first clamping portion and the second clamping portion are rotatably connected through the first rotating shaft, a first sub-groove and a second sub-groove are respectively formed at upper and lower ends of the first clamping portion, a third sub-groove and a fourth sub-groove are respectively formed at upper and lower ends of the second clamping portion, the first sub-groove and the third sub-groove form the first groove, and the second sub-groove and the fourth sub-groove form the second groove.

Optionally, the slip table subassembly includes interconnect's first slip table and second slip table, first slip table or the second slip table with base fixed connection, just first slip table is used for driving the base removes in first horizontal direction, the second slip table is used for driving the base removes in the second horizontal direction, the second horizontal direction perpendicular to first horizontal direction.

Optionally, the body fixing assembly further includes a cover plate connected to the base, the cover plate can cover the top of the base and is used for pressing and fixing the earphone body, and the cover plate has a through hole for exposing the mounting groove.

Optionally, the body fixing assembly further comprises a second rotating shaft, a first protruding block is arranged at the top of the base, a second protruding block is arranged at one end of the cover plate, and the second protruding block is rotatably connected to the first protruding block through the second rotating shaft.

Optionally, the fixed subassembly of body still including being fixed in suspension clasp on the base lateral wall, the other end of apron is provided with the third lug, be equipped with the locking groove on the third lug, the apron covers during the top of base, suspension clasp can hook locate locking groove is last, in order to lock the base with the apron.

Optionally, the earphone further comprises a limiting block, the limiting block is fixed to the top of the base, the length of the limiting block in the vertical direction is equal to the length of a first part of the earphone body in the vertical direction, and the first part is a part of the earphone body exposed out of the groove when the earphone body is located in the groove.

The drawing force testing device comprises a testing machine and the drawing force testing clamp, wherein the testing machine is connected with the connecting part of the drawing force testing clamp and is used for driving the connecting part to move in the vertical direction.

The utility model discloses following beneficial effect has at least:

the utility model provides a drawing force test fixture and device, the fixed subassembly of earplug can be fixed the earplug, and the other end and the test machine of connecting portion are connected, make the test machine can drive the earplug through the fixed subassembly of earplug and remove in the vertical direction, so that the installation and the separation of earplug and earphone body, fix the earphone body through the fixed subassembly of body, in order to prevent that the earphone body from following the earplug and removing, it removes to drive the fixed subassembly of body through the slip table subassembly, in order to make the earphone body aim at the earplug, thereby realize the test to earplug and this body coupling force of earphone, then confirm the requirement that the pleasant formula earphone satisfies after the coupling force between the two reaches the requirement, the quality of pleasant formula earphone has been guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a drawing force testing fixture provided by an embodiment of the present invention;

fig. 2 is an exploded schematic view of a drawing force testing fixture provided in an embodiment of the present invention;

fig. 3 is an exploded view of an earplug fixing assembly according to an embodiment of the invention.

In the figure:

1. an earplug securing assembly; 11. a connecting portion; 111. a pull rod; 1111. a second end; 1112. a first end; 112. a jaw structure; 1121. a first clamping part; 1122. a second clamping part; 1123. a first rotating shaft; 1131. a first subslot; 1132. a third subslot; 1133. a second subslot; 1134. a fourth subslot; 12. a chock block; 13. a lock cylinder;

2. a body fixing component 21 and a base; 211. a groove; 212. a first bump; 22. a cover plate; 221. a through hole; 222. a second bump; 223. a third bump; 2231. a locking groove; 23. a second rotating shaft; 24. hanging buckles; 241. a body portion; 242. a hoisting ring; 25. a connecting plate;

3. a sliding table assembly; 31. a first sliding table; 32. a second sliding table; 4. a limiting block; 5. a stage; 10. an earplug.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a drawing force test fixture, which can test the connection force between the earplug 10 and the earphone body.

As shown in fig. 1 to 3, the pull-out force testing jig includes an earplug fixing assembly 1, a body fixing assembly 2, and a sliding table assembly 3. Wherein, earplug fixed component 1 includes connecting portion 11 and chock 12, and the one end and the chock 12 of connecting portion 11 are connected, and the other end and the test machine that can test the pulling force of connecting portion 11 are connected, and on the chock 12 was located to the fixed cover of earplug 10 of pleasant formula earphone, the test machine can drive connecting portion 11 and move in vertical direction.

As shown in fig. 2, the body fixing assembly 2 includes a base 21. The top of base 21 is equipped with recess 211, and the shape and the size of recess 211 can be the same with the shape and the size of the earphone body of in-ear earphone respectively, and the earphone body is fixed in recess 211. For example, the earphone body may be clamped and fixed in the groove 211, or the earphone body may also be fixed in the groove 211 through other structures, which is not limited in this embodiment.

As shown in fig. 1, the sliding table assembly 3 is connected to the bottom of the base 21, and the sliding table assembly 3 is used for driving the base 21 to move in the horizontal direction, so that the mounting groove on the earphone body is aligned to the flange on the earplug 10 in the vertical direction, so that the earplug 10 and the earphone body are connected and the testing machine is ensured to be capable of being located on the same vertical line when the earplug 10 is pulled in the vertical direction, and the accuracy of the pulling force data obtained by the testing is ensured.

In the drawing force test fixture and the device provided by the embodiment, the earplug fixing component 1 can fix the earplug 10, and the other end of the connecting part 11 is connected with the test machine, so that the test machine can drive the earplug 10 to move in the vertical direction through the earplug fixing component 1, so that the earplug 10 and the earphone body can be conveniently installed and separated, the earphone body is fixed through the body fixing component 2, so that the earphone body is prevented from moving along with the earplug 10, the body fixing component 2 is driven to move through the sliding table component 3, so that the earphone body can be aligned to the earplug 10, the testing of the connecting force between the earplug 10 and the earphone body is realized, the requirement of the in-ear earphone is met after the connecting force between the two meets the requirement, and the quality of the in-ear earphone is ensured.

As shown in fig. 1 and 3, the connecting portion 11 may include a pull rod 111 and a jaw structure 112. The first end 1112 of the pull rod 111 is connected to the testing machine, and the upper and lower ends of the jaw structure 112 are respectively provided with a first groove and a second groove, that is, the top of the jaw structure 112 has the first groove, the first groove extends downward from the top of the jaw structure 112, the bottom of the jaw structure 112 has the second groove, the second groove extends upward from the bottom of the jaw structure 112, and the first groove and the second groove are independent from each other. The second end 1111 of the pull rod 111 is installed in the first groove, and in particular, the second end 1111 may be caught in the first groove. And, the clamping jaw structure 112 can rotate with the pull rod 111 as the rotation center, and the chock 12 is installed in the second groove, specifically, the chock 12 can be clamped in the second groove. Illustratively, as shown in FIG. 3, the first end 1112 has external threads, and the first end 1112 is capable of being threaded onto a testing machine.

In this embodiment, in order to realize that the jaw structure 112 can rotate around the pull rod 111 as a rotation center, as shown in fig. 3, the second end 1111 of the pull rod 111 is hemispherical, the first groove may also be hemispherical, and when the second end 1111 is located in the first groove, a rotatable connection can be formed between the two, that is, the jaw structure 112 can rotate around the pull rod 111 as a rotation center, so as to adjust the connection condition between the earplug 10 and the earphone body.

Further, with continued reference to fig. 3, the jaw structure 112 may include a first clamp portion 1121, a second clamp portion 1122, and a first rotating shaft 1123. The first clip portion 1121 is rotatably connected to the second clip portion 1122 via a first rotating shaft 1123. The first clip 1121 has first and second sub-grooves 1131 and 1132 at upper and lower ends thereof, respectively, and the second clip 1122 has third and fourth sub-grooves 1133 and 1134 at upper and lower ends thereof, respectively. When the first clip 1121 and the second clip 1122 are connected to each other, the first sub-slot 1131 and the third sub-slot 1133 can form a first groove, and the second sub-slot 1132 and the fourth sub-slot 1134 can form a second groove.

The first clip 1121 and the second clip 1122 are connected by a rotating shaft 1123, so that the first clip 1121 and the second clip 1122 can be connected or separated, and can be flexibly connected. When the first clip 1121 is separated from the second clip 1122, the second end 1111 is facilitated to be mounted in the first groove, and the chock 12 is also facilitated to be mounted in the second groove. Fig. 1 is a schematic view illustrating the connection between the first clip 1121 and the second clip 1122, and fig. 3 is a schematic view illustrating the separation between the first clip 1121 and the second clip 1122.

Optionally, as shown in fig. 1, the earplug fixture assembly 1 may further include a locking column 13, and the locking column 13 is used for enhancing the connection strength between the first clip portion 1121 and the second clip portion 1122.

Alternatively, when the earphone body is fixed in the recess 211 by another structure, the other structure may be the cover plate 22. Specifically, the method comprises the following steps. As shown in fig. 2, the body fixing assembly 2 may further include a cover plate 22 coupled to the base 21. The cover 22 can cover the top of the base 21 and serve to press-fix the earphone body to fix the earphone body in the recess 211. And, the cover plate 22 has a through hole 221, and the through hole 221 is used for exposing the mounting groove on the earphone body, so as to facilitate the connection between the flange on the earplug 10 and the mounting groove. Illustratively, the through hole 221 is a circular hole, and the size of the through hole 221 is consistent with the size of the mounting groove.

Further, with continued reference to fig. 2, the body fixing component 2 further includes a second rotating shaft 23. The base 21 and the cover plate 22 can be connected by a second rotating shaft 23, specifically, a first protrusion 212 is disposed on the top of the base 21, a second protrusion 222 is disposed on one end of the cover plate 22, and the second protrusion 222 is rotatably connected to the first protrusion 212 by the second rotating shaft 23. Illustratively, two first protrusions 212 are disposed on the base 21, two ends of the second rotating shaft 23 are respectively fixed on the two first protrusions 212, and the second protrusion 222 is sleeved on a middle portion of the first rotating shaft 23, so that the cover 22 can rotate relative to the base 21 and be fastened to the base 21, or be separated from the base 21. Fig. 1 is a schematic view illustrating the cover plate 22 and the base 21 being fastened together.

Alternatively, in order for the cover 22 not to separate from the base 21 when the earplug 10 is pulled by the testing machine, the connection strength of the cover 22 and the base 21 needs to be reinforced by the hook 24. Illustratively, as shown in fig. 2, the body fixing assembly 2 may further include a hook 24 fixed on a side wall of the base 21, and the other end of the cover 22 is provided with a third projection 223, the third projection 223 is provided with a locking groove 2231, and when the cover 22 covers the top of the base 21, i.e., when the cover 22 is fastened to the base 21, the hook 24 can be hooked on the locking groove 2231 to lock the base 21 and the cover 22. Wherein the other end of the cover plate 22 is opposite to one end of the cover plate 22.

Further, the hanging buckle 24 may include a body 241 and a hanging ring 242 rotatably connected to the body 241, and when the cover 22 covers the top of the base 21, the hanging ring 242 can be hooked on the locking groove 2231.

Optionally, as shown in fig. 2, the pull force test fixture may further include a stopper 4. Stopper 4 is fixed in the top of base 21, and stopper 4 length on vertical direction is equal to earphone body's the first part length on vertical direction, and the first part exposes in the part of recess 211 when being located recess 211 for earphone body, and stopper 4's setting can reduce the probability that apron 22 harmed the earphone body.

In this embodiment, referring to fig. 2, the sliding table assembly 3 may include a first sliding table 31 and a second sliding table 32 connected to each other. The first sliding table 31 or the second sliding table 32 is fixedly connected to the base 21, and the first sliding table 31 is connected to the base 21 in this embodiment. Moreover, the first sliding table 31 is used for driving the base 21 to move in a first horizontal direction, and the second sliding table 32 is used for driving the base 21 to move in a second horizontal direction, which is perpendicular to the first horizontal direction. For example, the first sliding table 31 may be fixedly connected with the base 21 through the connecting plate 25 in the body fixing assembly 2.

Alternatively, the first slide table 31 may include a first bottom plate, a first top plate, and a first cylinder provided between the first bottom plate and the first top plate. The main part of the first cylinder is fixed on the first bottom plate, the first top plate is fixedly connected with the telescopic end of the first cylinder, and the first cylinder drives the connecting plate 25 to move in the first horizontal direction through the first top plate. Similarly, the second slide table 32 may include a second bottom plate, a second top plate, and a second cylinder provided between the second bottom plate and the second top plate. The main part of the second cylinder is fixed on the second bottom plate, the second top plate is fixedly connected with the telescopic end of the second cylinder, and the second cylinder drives the connecting plate 25 to move in the second horizontal direction through the first sliding table 31.

The embodiment also provides a drawing force testing device, which comprises a testing machine and the drawing force testing clamp. Wherein, the test machine can be dismantled with connecting portion 11 of drawing force test fixture and be connected to drive connecting portion 11 and remove in vertical direction. The drawing force testing device can also comprise a carrying platform 5, and the drawing force testing clamp is fixed on the carrying platform 5. Furthermore, a positioning column may be disposed on the stage 5, and the positioning column defines a fixed position of the pull-out force test fixture.

Next, the present embodiment will explain the mode of use of the pulling force testing apparatus.

First, the control cover 22 is rotated clockwise with respect to the base 21 to expose the recess 211, and then, the earphone body is placed in the recess 211. And then the cover plate 22 is controlled to rotate counterclockwise to cover the top of the base 21 and expose the mounting groove of the earphone body from the through hole 221 of the cover plate 22. When the cover 22 completely covers the bottom plate 21, the hanging ring 242 on the pulling hook 24 rotates relative to the body 241 and hooks on the earplug fixing component 1 to complete the fixing of the earphone body.

Next, the lock of the lock cylinder 13 on the first clip 1121 and the second clip 1122 is released, the first clip 1121 and the second clip 1122 are rotated to separate them, then the plug 12 is taken out of the second groove, the earplug 10 is fixed to the plug 12, then the plug 12 with the earplug 10 is mounted on the second sub-groove 1132 or the fourth sub-groove 1134, and then the first clip 1121 and the second clip 1122 are rotated to fasten them, and at this time, the plug 12 with the earplug 10 is mounted in the second groove. The first clip 1121 and second clip 1122 are then locked using the lock posts 13 to complete the retention of the earplug 10.

Next, the flange of the earplug 10 is connected with the mounting groove on the earphone body. Specifically, the slide table assembly 3 is controlled to move in the horizontal direction so that the mounting groove can be coaxial with the flange in the vertical direction. And the headset body is connected to the earplug 10 by the snap-fit flange and mounting groove. And then controlling the testing machine to pull the earplug 10 through the earplug fixing component 1 along the vertical direction so as to separate the earplug 10 from the earphone body, and recording the pulling force when the earplug 10 is separated from the earphone body.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A pull force test fixture, comprising:

the earplug fixing component (1) comprises a connecting part (11) and a plug block (12), one end of the connecting part (11) is connected with the plug block (12), the other end of the connecting part (11) is connected with a testing machine, and earplugs of an in-ear earphone are fixedly sleeved on the plug block (12);

the body fixing component (2) comprises a base (21), the top of the base (21) is provided with a groove (211), and the earphone body of the in-ear earphone is fixed in the groove (211);

the sliding table assembly (3) is connected with the bottom of the base (21), and the sliding table assembly (3) is used for driving the base (21) to move in the horizontal direction, so that the installation groove in the earphone body is right aligned to the flange on the earplug in the vertical direction.

2. The pull force test fixture according to claim 1, wherein the connecting portion (11) comprises a pull rod (111) and a jaw structure (112), a first end (1112) of the pull rod (111) is connected to the testing machine, a first groove and a second groove are respectively formed at an upper end and a lower end of the jaw structure (112), a second end (1111) of the pull rod (111) is mounted in the first groove, the jaw structure (112) can rotate around the pull rod (111), and the plug block (12) is mounted in the second groove.

3. The pull force test fixture of claim 2, wherein the second end (1111) of the pull rod (111) and the first recess are each hemispherical.

4. The pull force test fixture of claim 3, wherein the jaw structure (112) comprises a first clamp portion (1121), a second clamp portion (1122), and a first rotating shaft (1123), the first clamp portion (1121) and the second clamp portion (1122) are rotatably connected by the first rotating shaft (1123), and the first clamp portion (1121) has a first sub-groove (1131) and a second sub-groove (1132) at upper and lower ends thereof, respectively, the second clamp portion (1122) has a third sub-groove (1133) and a fourth sub-groove (1134) at upper and lower ends thereof, respectively, the first sub-groove (1131) and the third sub-groove (1133) form the first groove, and the second sub-groove (1132) and the fourth sub-groove (1134) form the second groove.

5. The drawing force test fixture according to any one of claims 1 to 4, wherein the sliding table assembly (3) comprises a first sliding table (31) and a second sliding table (32) which are connected with each other, the first sliding table (31) or the second sliding table (32) is fixedly connected with the base (21), the first sliding table (31) is used for driving the base (21) to move in a first horizontal direction, the second sliding table (32) is used for driving the base (21) to move in a second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction.

6. The pull force test fixture according to any one of claims 1 to 4, wherein the body fixing member (2) further comprises a cover plate (22) connected to the base (21), the cover plate (22) can cover the top of the base (21) and is used for press-fixing the earphone body, and the cover plate (22) has a through hole (221) therein, and the through hole (221) is used for exposing the mounting groove.

7. The pull force test fixture according to claim 6, wherein the body fixing assembly (2) further comprises a second rotating shaft (23), a first protrusion (212) is disposed on the top of the base (21), a second protrusion (222) is disposed on one end of the cover plate (22), and the second protrusion (222) is rotatably connected to the first protrusion (212) through the second rotating shaft (23).

8. The pull force test fixture according to claim 7, wherein the body fixing assembly (2) further comprises a hanging buckle (24) fixed on the side wall of the base (21), the other end of the cover plate (22) is provided with a third protruding block (223), a locking groove (2231) is arranged on the third protruding block (223), and when the cover plate (22) covers the top of the base (21), the hanging buckle (24) can be hooked on the locking groove (2231) to lock the base (21) and the cover plate (22).

9. The drawing force test fixture according to claim 6, further comprising a stopper (4), wherein the stopper (4) is fixed to the top of the base (21), and the length of the stopper (4) in the vertical direction is equal to the length of a first portion of the earphone body in the vertical direction, and the first portion is a portion exposed to the groove (211) when the earphone body is located in the groove (211).

10. A drawing force testing apparatus, comprising a testing machine and a drawing force testing jig according to any one of claims 1 to 9, wherein the testing machine is connected to a connecting portion (11) of the drawing force testing jig and is configured to move the connecting portion (11) in a vertical direction.

Images