CN211374027U

CN211374027U - A tensile testing arrangement that pulls out for type-c interface earphone

Info

Publication number: CN211374027U
Application number: CN202020092040.4U
Authority: CN
Inventors: 董海波
Original assignee: Dongguan Duwei Communication Technology Co ltd
Current assignee: Dongguan Duwei Communication Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-08-28
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a drawing-resistant testing device for type-c interface earphones, which has the technical scheme that the device comprises a mounting seat and a clamping mechanism arranged on the mounting seat; the clamping mechanism comprises a base and a clamping assembly, wherein the base is arranged on the mounting base in a sliding mode through the sliding assembly, the clamping assembly is arranged on the base, and a tension mechanism connected with the base is arranged on the mounting base; the clamping assembly comprises a fixed clamping plate and a movable clamping plate which are respectively provided with an upper arc-shaped groove and a lower arc-shaped groove, and the movable clamping plate is driven to lift through the lifting assembly; the mounting seat is also provided with a clamping assembly, the clamping assembly comprises a first clamping plate, a second clamping plate and a third clamping plate, the first clamping plate, the second clamping plate and the third clamping plate are correspondingly provided with a first arc-shaped groove, a second arc-shaped groove and a third arc-shaped groove, and the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove are spliced to form a fixing groove; the mounting seat is provided with a driving assembly for driving the first clamping plate and the second clamping plate to approach or depart from each other. According to the technology, the arc part of the plug-in shell is clamped, so that the stress of the plug-in shell is more uniform, the plug-in shell is not easy to deform, and the rejection rate of products is reduced.

Description

A tensile testing arrangement that pulls out for type-c interface earphone

Technical Field

The utility model relates to an earphone production and processing field, more specifically say, it relates to a tensile testing arrangement that pulls out that is used for type-c interface earphone.

Background

The wired earphone comprises an earphone interface, a left earphone, a right earphone and an earphone line, wherein the earphone interface is connected with the left earphone and the right earphone through the earphone line. Currently, there are common types of headset interfaces on the market: a round 3.5mm interface and a flat type-c interface. Since the type-c interface has the characteristics of high-speed transmission and front and back insertion, the type-c interface is increasingly applied to earphones.

Present TYPE-C interface, as shown in fig. 1, mainly include plug-in housing 1, TYPE-C base (not shown in the figure), circuit board 2, backshell 3 and protective housing 4, plug-in housing 1 is the platykurtic and both sides limit is the arc portion structure, TYPE-C base and circuit board 2 all overlap in backshell 3, the one end and the plug-in housing 1 fixed connection of backshell 3 (backshell 3 is plastics or rubber material usually, and backshell 3 is connected through the mode of moulding plastics with plug-in housing 1), the other end of backshell 3 and the connecting portion fixed connection of earphone cord, protective housing 4 bonds outside backshell 3 through sticky mode to play the effect of protection backshell 3.

In the prior art, the anti-pulling test is usually required to be performed on the connection strength between the rear shell 3 and the protective shell 4, however, in the prior art, when the anti-pulling test is performed on the connection strength between the rear shell 3 and the protective shell 4 of the type-c interface, generally, the flat portion of the plug-in shell 1 and the side wall of the protective shell 4 are respectively clamped by the clamp, and the force is applied to pull the flat portion and the side wall of the protective shell 4 to realize the measurement, and such a measurement mode easily causes the deformation of the plug-in shell 1, and causes a high rejection rate of products.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of the prior art, the utility model aims to provide a tensile testing device for type-c interface earphone is pulled out through the arc portion of centre gripping plug-in shell for the atress of plug-in shell is more even, and is difficult to take place to warp, has reduced the rejection rate of product.

The utility model discloses a technical scheme realize like this: an anti-pulling testing device for a type-c interface earphone comprises a mounting seat and a clamping mechanism arranged on the mounting seat;

the clamping mechanism comprises a base arranged on the mounting seat and a clamping assembly arranged on the base, the base is connected with the mounting seat in a sliding mode, and the mounting seat is provided with a sliding assembly for the base to slide; a tension mechanism for pulling the base to slide is arranged on the mounting seat, and one end of the tension mechanism is connected to the base;

the clamping assembly comprises a fixed clamping plate and a movable clamping plate which are arranged on the base, the fixed clamping plate is positioned below the movable clamping plate, and a lifting assembly for driving the movable clamping plate to lift is arranged on the base; the movable clamp plate and the fixed clamp plate are respectively provided with an upper arc-shaped groove and a lower arc-shaped groove, the upper arc-shaped groove and the lower arc-shaped groove respectively correspond to two arc parts of the plug-in shell of the type-c interface, and the upper arc-shaped groove and the lower arc-shaped groove are spliced to form a clamping groove for clamping the plug-in shell of the type-c interface;

the mounting seat is also provided with a clamping assembly for clamping and fixing a protective shell of a type-c interface, and the clamping assembly and the tension mechanism are respectively arranged on two opposite sides of the base; the clamping assembly comprises a first clamping plate, a second clamping plate and a third clamping plate, the third clamping plate is fixedly arranged on the base, the first clamping plate and the second clamping plate are oppositely arranged, the first clamping plate and the second clamping plate are arranged on the third clamping plate in a sliding mode, a first arc-shaped groove and a second arc-shaped groove are respectively arranged on one opposite sides of the first clamping plate and the second clamping plate, a third arc-shaped groove is arranged on the third clamping plate, and the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove are spliced to form a fixing groove for clamping and fixing a protective shell of a type-c interface;

and the mounting seat is provided with a driving assembly for driving the first clamping plate and the second clamping plate to move along the directions close to or far away from each other.

By adopting the technical scheme, when the connecting strength between the rear shell and the protective shell of the type-c interface is tested, the arc part at one side of the plug-in shell of the interface is arranged on the lower arc-shaped groove on the fixed plate, one side of the protective shell is arranged on the third arc-shaped groove on the third clamping plate, then the movable clamping plate is driven to descend by the lifting component, so that the upper arc-shaped groove on the movable clamping plate descends until the groove wall of the arc-shaped groove is tightly abutted against the arc part at the other side of the insertion shell, the insertion shell is clamped tightly by the matching of the upper arc-shaped groove and the lower arc-shaped groove, thereby realizing clamping of the plug-in shell, simultaneously, the driving component drives the first clamping plate and the second clamping plate to approach each other so that the first arc-shaped groove, the second arc-shaped groove and the third arc-shaped groove are matched to clamp the protective shell tightly, then, applying tension to the base through a tension mechanism to enable the base to move towards one side far away from the clamping assembly, so that the drawing test of the rear shell and the protective shell of the interface is realized; in addition, because go up the arc wall and contradict two arcs of plug shell respectively with lower arc wall, and then replace the flat portion of centre gripping plug shell for the stress point of plug shell lies in both sides arc position, and the prestressing force dispersion that the arc will receive to flat portion, and then makes the atress of plug shell more even, and is difficult to take place to warp, has reduced the rejection rate of product.

As a further improvement of the utility model, drive assembly includes the two-way lead screw that the level set up and is used for the drive two-way lead screw pivoted servo motor, servo motor's output shaft in the one end of two-way lead screw, one side of first splint and second splint all is provided with the connecting block, two-way lead screw runs through two the connecting block, just the both ends of two-way lead screw respectively with two connecting block threaded connection.

Through adopting foretell technical scheme, rotate through the two-way lead screw of servo motor drive to make two connecting blocks move to the direction that is close to each other or keeps away from each other respectively, drive first splint and second splint and move to the direction that is close to each other or keeps away from each other respectively, realize loosening or press from both sides the operation of tight protective housing.

As a further improvement of the utility model, the lifting unit include vertical set up in screw rod on the base and be used for the drive screw rod pivoted driving motor, driving motor's output shaft in the top of screw rod, movable clamp plate's lateral wall is provided with the guide block, the screw rod run through and threaded connection in the guide block.

Through adopting foretell technical scheme, during the grafting shell of centre gripping interface, can place arc wall under with one side arc of grafting shell, then rotate through driving motor drive screw to make the guide block descend along the screw rod, and then drive movable clamp plate and descend, so that movable clamp plate descends to form the centre gripping groove with arc wall cooperation down, makes the cell wall of going up arc wall and arc wall down closely contradict the both sides arc of grafting shell respectively, and then realizes pressing from both sides tight grafting shell.

As a further improvement, the tension mechanism includes that one end connect in the base deviates from the stay cord of one side of tight piece and set up in the weight of the other end of stay cord, be provided with the mounting bracket on the mount pad, the weight pass through the stay cord hang in on the mounting bracket, be provided with on the mounting bracket and be used for pulling the subassembly that pulls of stay cord, still be provided with on the mount pad and be used for fixing the fixed subassembly of base.

Through adopting foretell technical scheme, during the test, the fixed subassembly of unblock, so that base and mount pad slide and be connected, the base loses the fixed back of fixed subassembly, because the weight hangs on the mounting bracket, the weight receives downward action of gravity, and then produce the pulling force to the stay cord, the pulling force of stay cord is used in on the base, the base receives the pulling force of stay cord, and then be used in the plug-in shell, and the protective housing then closely presss from both sides tightly by the tight subassembly of clamp, in order to restrict the protective housing and follow the pulling force direction motion of stay cord, realize the pulling force test between backshell and the protective housing, and according to the pulling force size of required test and select for use the weight of different weights can.

As a further improvement of the present invention, the traction assembly includes a first guide wheel and a second guide wheel rotatably disposed on the mounting bracket, the pull cord bypasses the upper side of the first guide wheel and the second guide wheel, the mounting seat is further provided with a reversing assembly for changing the traction angle of the pull cord, the reversing assembly is disposed between the mounting bracket and the base.

Through adopting foretell technical scheme, first guide wheel and second guide wheel guide the stay cord, and then change the trend of stay cord to the effort that makes the base receive is more stable.

As a further improvement of the utility model, the switching-over subassembly including set up in installation piece and rotation on the mount pad set up in switching-over wheel on the installation piece, the stay cord is walked around the downside of switching-over wheel is to going around upwards the upside of first guide wheel and second guide wheel, after the downside of switching-over wheel was walked around to the stay cord, the stay cord is located line segment between switching-over wheel and the base is the horizontality.

Through adopting foretell technical scheme, change the trend of stay cord through the reverse wheel to make the effort of stay cord effect on the base be in the horizontality, and then make the base receive the pulling force of stay cord more even and more stable.

As a further improvement of the utility model, fixed subassembly including set up in fixed cylinder on the mount pad, fixed cylinder sets up along the glide direction of base, fixed cylinder's piston rod contradict in the base deviates from one side of clamping component.

Through adopting foretell technical scheme, before the test, the piston rod of fixed cylinder contradicts the base to the restriction base slides, during the test, the piston rod shrink of fixed cylinder, so that fixed cylinder's piston rod and base separation, the weight provides the effort to the stay cord, and the effort of stay cord is used in on the base, and the in-process of test if protective housing and backshell separation, then the base receives the effort of stay cord and slides, and the test finishes the back, and fixed cylinder extends, and then promotes the base and resets.

As a further improvement of the utility model, the subassembly that slides including set up in slide rail on the base, the base seted up slide cooperate in the groove of sliding of slide rail.

Through adopting foretell technical scheme, through the cooperation of sliding in slide rail and the groove that slides between base and the mount pad for the slip of base is more stable.

To sum up, the utility model discloses following beneficial effect has:

1. the arc part of the plug shell is clamped, so that the plug shell is stressed more uniformly and is not easy to deform, and the rejection rate of products is reduced;

2. because the weight hangs on the mounting bracket, the weight receives downward action of gravity, and then produces the pulling force to the stay cord, and the pulling force of stay cord is used in on the base, and the base receives the pulling force of stay cord, and then is used in the plug shell, and the protective housing is then closely pressed from both sides tightly by the clamp assembly to the pulling force direction motion of restriction protective housing along the stay cord realizes the drawing force test between backshell and the protective housing.

Drawings

FIG. 1 is a schematic structural diagram of a type-c interface in an embodiment of the present invention;

fig. 2 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 3 is another schematic view of FIG. 2;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is an exploded view of the first clamping plate, the second clamping plate and the third clamping plate of the embodiment of the present invention.

In the figure: 1. a plug-in housing; 2. a circuit board; 3. a rear housing; 4. a protective shell; 5. a mounting seat; 51. a base; 52. fixing the clamping plate; 53. a movable splint; 54. a support block; 6. a slide rail; 71. a screw; 72. a drive motor; 73. a guide block; 74. a guide groove; 8. an upper arc-shaped groove; 9. a lower arc-shaped groove; 101. a fixed block; 102. a first splint; 103. a second splint; 104. a first arc-shaped slot; 105. a second arc-shaped slot; 106. a third arc-shaped slot; 107. fixing grooves; 108. a third splint; 111. a bidirectional screw rod; 112. a servo motor; 113. a containing groove; 114. a communicating groove; 115. connecting blocks; 121. pulling a rope; 122. a weight; 13. a mounting frame; 131. a vertical plate; 132. a transverse plate; 141. a first guide wheel; 142. a second guide wheel; 151. mounting blocks; 152. a reversing wheel; 153. a reversing slot; 16. fixing the air cylinder; 17. and a displacement sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An anti-pulling testing device for a type-c interface earphone is shown in fig. 2 and comprises a rectangular mounting base 5 and a clamping mechanism arranged on the mounting base 5. The clamping mechanism comprises a base 51 which is slidably mounted on the mounting seat 5, and a sliding component for sliding the base 51 along the width direction of the mounting seat 5 is arranged on the mounting seat 5. In this embodiment, the subassembly that slides includes slide rail 6, and slide rail 6 sets up along the length direction of mount pad 5, and the bottom surface of base 51 is seted up and is slided the groove of sliding of being connected with slide rail 6, and base 51 passes through the cooperation in slide rail 6 and the groove of sliding to make base 51's slip more stable.

Further, as shown in fig. 3 and 4, the clamping mechanism further includes a clamping assembly provided on the base 51 and used for clamping the plug housing 1 of the type-c interface. Specifically, the clamping assembly comprises a fixed clamping plate 52 and a movable clamping plate 53 which are oppositely arranged, and the movable clamping plate 53 is positioned above the fixed clamping plate 52. In this embodiment, the fixed splint 52 and the movable splint 53 are both nylon plates. Specifically, the fixed clamp plate 52 is fixed on the base 51, the support block 54 is fixedly installed on the base 51, the movable clamp plate 53 is installed on the support block 54, and the movable clamp plate 53 can slide up and down relative to the support block 54. A lifting component for driving the movable clamping plate 53 to lift is fixedly arranged on the supporting block 54.

Specifically, as shown in fig. 2 and 4, the lifting assembly includes a screw 71 rotatably mounted on the supporting block 54 and a driving motor 72 for driving the screw 71 to rotate, the screw 71 is disposed along the vertical direction, the bottom end of the screw 71 is rotatably connected to the base 51, and the top end of the screw 71 is fixedly connected to an output shaft of the driving motor 72. In this embodiment, a guide block 73 is fixed to a side wall of the movable clamp plate 53, a guide groove 74 for sliding the guide block 73 up and down is opened in a side wall of the support block 54, and the screw 71 penetrates and is screwed into the guide block 73.

As shown in fig. 3 and 4, the fixed splint 52 and the movable splint 53 have an upper arc-shaped groove 8 and a lower arc-shaped groove 9 on the opposite side, the upper arc-shaped groove 8 and the lower arc-shaped groove 9 are arranged oppositely, and the upper arc-shaped groove 8 and the lower arc-shaped groove 9 are respectively corresponding to two arc portions of the plug-in shell 1 with the type-c interface, when the lifting assembly drives the movable splint 53 to descend to the abutting fixed splint 52, the upper arc-shaped groove 8 and the lower arc-shaped groove 9 are spliced to form a clamping groove for clamping the plug-in shell 1 with the type-c interface, and the groove walls of the upper arc-shaped groove 8 and the lower arc-shaped groove 9 tightly abut against the two arc portions of the plug-in shell 1, so that the plug-in shell 1 is clamped in the.

In addition, as shown in fig. 4 and 5, a clamping assembly for clamping and fixing the protective shell 4 of the type-c interface is further provided on the mounting base 5, and the clamping assembly is located on one side of the base 51. Specifically, the clamping assembly includes a fixing block 101 fixed on the mounting base 5, a third clamping plate 108 fixed on the fixing block 101, and a first clamping plate 102 and a second clamping plate 103 mounted on a top surface of the third clamping plate 108. In this embodiment, the first splint 102, the second splint 103, and the third splint 108 are all nylon plates. Specifically, first splint 102, second splint 103 and third splint 108 all are the cubic setting, and first splint 102 and second splint 103 are the symmetry setting along third splint 108 at the ascending central line in vertical direction, and first splint 102 and second splint 103 slide and install on third splint 108. In this embodiment, the first clamping plate 102 and the second clamping plate 103 can slide in a direction approaching to or moving away from each other, and the mounting seat 5 is provided with a driving assembly for driving the first clamping plate 102 and the second clamping plate 103 to slide.

Specifically, the driving assembly includes a bidirectional screw 111 rotatably mounted on the third clamping plate 108 in a length direction of the third clamping plate 108, and a servo motor 112 for driving the bidirectional screw 111 to rotate.

Specifically, as shown in fig. 5, a receiving groove 113 is formed in the third clamping plate 108, the bidirectional screw 71 is rotatably installed in the receiving groove 113, one end of the bidirectional screw 111 penetrates out of the receiving groove 113, and the output shaft of the servo motor 112 is fixedly connected to one end of the bidirectional screw 111 penetrating out of the receiving groove 113. Two communicating grooves 114 communicated with the accommodating groove 113 are formed in the top surface of the third clamping plate 108, connecting blocks 115 connected with the communicating grooves 114 in a sliding mode are fixed at the bottoms of the first clamping plate 102 and the second clamping plate 103, the connecting blocks 115 penetrate into the accommodating groove 113 from the communicating grooves 114, the two-way screw rod 111 penetrates through the two connecting blocks 115, and two ends of the two-way screw rod 111 are respectively in threaded connection with the two connecting blocks 115.

In addition, as shown in fig. 5, a third arc-shaped groove 106 is formed in the top surface of the third clamping plate 108, a first arc-shaped groove 104 and a second arc-shaped groove 105 are respectively formed in the opposite sides of the first clamping plate 102 and the second clamping plate 103, and the first arc-shaped groove 104, the second arc-shaped groove 105 and the third arc-shaped groove 106 are spliced to form a fixing groove 107 for clamping and fixing the protective shell 4 of the type-c interface. That is, when clamping the protective housing 4, one side of the protective housing 4 can be placed on the third arc-shaped groove 106, and then the bidirectional screw 111 is driven to rotate by the servo motor 112, so that the first clamping plate 102 and the second clamping plate 103 move along the direction close to each other, and then the first arc-shaped groove 104, the second arc-shaped groove 105 and the third arc-shaped groove 106 are matched to form the fixing groove 107, and further the protection can be clamped and fixed.

As shown in fig. 2 and 3, the mounting base 5 is further provided with a pulling mechanism for pulling the base 51 to slide along the length direction of the slide rail 6, and the pulling mechanism is located on the side of the base 51 opposite to the clamping assembly. One end of the tensile mechanism is fixedly connected with the base 51. Specifically, the tension mechanism includes a pull rope 121 having one end connected to a side of the base 51 facing away from the clamping assembly, and a weight 122 fixed to the other end of the pull rope 121. In this embodiment, the mounting frame 13 is fixed on the mounting seat 5, and the weight 122 is suspended on the mounting frame 13 by the pull rope 121, so that the weight 122 pulls the base 51 to move to the side away from the clamping assembly under the action of gravity.

Specifically, the mounting bracket 13 includes a vertical plate 131 and a horizontal plate 132, and the horizontal plate 132 is fixedly mounted on the top of the vertical plate 131. A pulling assembly for pulling the pulling rope 121 is mounted on the transverse plate 132. The traction assembly comprises a first guide wheel 141 and a second guide wheel 142 which are rotatably mounted on the transverse plate 132, the first guide wheel 141 and the second guide wheel 142 are respectively located at two ends of the transverse plate 132, the upper sides of the first guide wheel 141 and the second guide wheel 142 are located on the same plane, and the pull rope 121 bypasses the upper sides of the first guide wheel 141 and the second guide wheel 142 to form a horizontal line segment.

In addition, as shown in fig. 2 and 3, the mounting base 5 is further provided with a reversing assembly for changing the traction angle of the pull rope 121, and the reversing assembly is located between the mounting frame 13 and the base 51.

Specifically, the reversing assembly includes a mounting block 151 fixed on the mounting base 5 and a reversing wheel 152 rotatably mounted on the mounting block 151, a reversing groove 153 (not shown) is formed in the top of the mounting block 151, the reversing wheel 152 is rotatably mounted in the reversing groove 153, the pulling rope 121 passes through the reversing groove 153, and the pulling rope 121 abuts against the lower side of the reversing wheel 152, it can be understood that the pulling rope 121 starts from one end of the base 51, bypasses the lower side of the reversing wheel 152, and then bypasses the upper sides of the first guide wheel 141 and the second guide wheel 142 upwards, and then is connected with the weight 122. In this embodiment, the vertical height between the direction-changing wheel 152 and the mounting seat 5 is equal to the vertical height between the connection point of the pulling rope 121 on the base 51 and the mounting seat 5, so that after the pulling rope 121 goes around the direction-changing wheel 152, the line segment of the pulling rope 121 between the direction-changing wheel 152 and the base 51 is in a horizontal state, so that the acting force of the pulling rope 121 on the base 51 is in a horizontal state.

In order to keep the base 51 fixed before the test, a fixing member for fixing the base 51 is further provided on the mount 5.

Specifically, as shown in fig. 2 and fig. 3, the fixing assembly includes a fixing cylinder 16 fixed on the mounting base 5, the fixing cylinder 16 is disposed along the length direction of the slide rail 6, and a piston rod of the fixing cylinder 16 abuts against one side of the base 51 departing from the clamping assembly after passing through the mounting block 151, that is, when the fixing cylinder 16 is in the extending state, the piston rod of the cylinder abuts against the side wall of the base 51, when the fixing cylinder 16 is in the contracting state, the piston rod of the cylinder is separated from the base 51, at this time, the weight 122 is subjected to the action of gravity to provide a pulling force for the pulling rope 121, and the pulling force acts on the base 51, so that the base 51 slides along the length.

In order to be able to know the test situation in time, a displacement sensor 17 is further fixed on the mounting base 5, wherein the displacement sensor 17 is located on one side of the machine base, and a measuring end of the displacement sensor 17 abuts against a side wall of the base 51. Install on mount pad 5 with displacement sensor 17 electric connection's alarm, the alarm can be alarm lamp or bee calling organ, when displacement sensor 17 senses base 51 and takes place the displacement, the alarm reported to the police. It should be noted that, since the implementation of the electrical connection between the displacement sensor 17 and the alarm is the prior art, it is not described in detail in this embodiment.

The overall working process is as follows: when testing the connection strength between the rear shell 3 and the protective shell 4 of the type-c interface, the piston rod of the fixed cylinder 16 abuts against the base 51 to limit the sliding of the base 51, then the arc part at one side of the plug-in shell 1 of the interface is placed on the lower arc-shaped groove 9 of the fixed plate, and one side of the protective shell 4 is placed on the third arc-shaped groove 106 of the third clamping plate 108, then the movable clamping plate 53 is driven by the lifting assembly to descend, so that the upper arc-shaped groove 8 on the movable clamping plate 53 descends to the point that the groove wall of the arc-shaped groove tightly abuts against the arc part at the other side of the plug-in shell 1, the plug-in shell 1 is clamped by the matching of the upper arc-shaped groove 8 and the lower arc-shaped groove 9, and further the plug-in shell 1 is clamped, meanwhile, the driving assembly drives the first clamping plate 102 and the second clamping plate 103 to approach each other, so that the first arc-shaped groove 104, the second arc-shaped groove 105 and, the piston rod of the fixed cylinder 16 contracts to enable the piston rod of the fixed cylinder 16 to be separated from the base 51, the weight 122 provides acting force for the pull rope 121, the acting force of the pull rope 121 acts on the base 51, in the testing process, if the protective shell 4 is separated from the rear shell 3, the base 51 slides under the acting force of the pull rope 121, and the displacement sensor 17 generates a signal to alarm to warn a worker.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. The utility model provides a tensile test device that pulls out for type-c interface earphone which characterized in that: comprises a mounting seat (5) and a clamping mechanism arranged on the mounting seat (5);

the clamping mechanism comprises a base (51) arranged on the mounting seat (5) and a clamping assembly arranged on the base (51), the base (51) is connected with the mounting seat (5) in a sliding mode, and the mounting seat (5) is provided with a sliding assembly for the base (51) to slide; a tension mechanism for pulling the base (51) to slide is arranged on the mounting seat (5), and one end of the tension mechanism is connected to the base (51);

the clamping assembly comprises a fixed clamping plate (52) and a movable clamping plate (53) which are arranged on the base (51), the fixed clamping plate (52) is positioned below the movable clamping plate (53), and a lifting assembly for driving the movable clamping plate (53) to lift is arranged on the base (51); the movable clamping plate (53) and the fixed clamping plate (52) are respectively provided with an upper arc-shaped groove (8) and a lower arc-shaped groove (9), the upper arc-shaped groove (8) and the lower arc-shaped groove (9) are respectively corresponding to two arc parts of the plug-in shell (1) of the type-c interface, and the upper arc-shaped groove (8) and the lower arc-shaped groove (9) are spliced to form a clamping groove for clamping the plug-in shell (1) of the type-c interface;

the mounting seat (5) is also provided with a clamping assembly for clamping and fixing a protective shell (4) of a type-c interface, and the clamping assembly and the tension mechanism are respectively arranged on two opposite sides of the base (51); the clamping assembly comprises a first clamping plate (102), a second clamping plate (103) and a third clamping plate (108), the third clamping plate (108) is fixedly arranged on the base (51), the first clamping plate (102) and the second clamping plate (103) are oppositely arranged, the first clamping plate (102) and the second clamping plate (103) are arranged on the third clamping plate (108) in a sliding mode, one sides, opposite to the first clamping plate (102) and the second clamping plate (103), are respectively provided with a first arc-shaped groove (104) and a second arc-shaped groove (105), the third clamping plate (108) is provided with a third arc-shaped groove (106), and the first arc-shaped groove (104), the second arc-shaped groove (105) and the third arc-shaped groove (106) are spliced to form a fixing groove (107) used for clamping and fixing a protective shell (4) of a type-c interface;

the mounting seat (5) is provided with a driving assembly for driving the first clamping plate (102) and the second clamping plate (103) to move along the directions close to or away from each other.

2. The pulling resistance testing device for type-c interface earphones according to claim 1, wherein: the drive assembly comprises a horizontally arranged bidirectional screw rod (111) and a servo motor (112) used for driving the bidirectional screw rod (111) to rotate, an output shaft of the servo motor (112) is connected to one end of the bidirectional screw rod (111), one sides of the first clamping plate (102) and the second clamping plate (103) are provided with connecting blocks (115), the bidirectional screw rod (111) penetrates through the two connecting blocks (115), and two ends of the bidirectional screw rod (111) are respectively connected with the two connecting blocks (115) in a threaded manner.

3. The anti-pulling testing device for type-c interface earphones according to claim 2, wherein: the lifting assembly comprises a screw rod (71) vertically arranged on the base (51) and a driving motor (72) used for driving the screw rod (71) to rotate, an output shaft of the driving motor (72) is connected to the top end of the screw rod (71), a guide block (73) is arranged on the side wall of the movable clamping plate (53), and the screw rod (71) penetrates through and is in threaded connection with the guide block (73).

4. The pulling resistance testing device for type-c interface earphones according to claim 1, wherein: tensile mechanism include that one end connect in base (51) deviate from stay cord (121) of one side of clamping component and set up in weight (122) of the other end of stay cord (121), be provided with mounting bracket (13) on mounting bracket (5), weight (122) hang through stay cord (121) in on mounting bracket (13), be provided with on mounting bracket (13) and be used for drawing the subassembly that draws of stay cord (121), still be provided with on mounting bracket (5) and be used for fixing the fixed subassembly of base (51).

5. The pulling resistance testing device for type-c interface earphones according to claim 4, wherein: the traction assembly comprises a first guide wheel (141) and a second guide wheel (142) which are rotatably arranged on the mounting frame (13), the pull rope (121) bypasses the upper sides of the first guide wheel (141) and the second guide wheel (142), a reversing assembly used for changing the traction angle of the pull rope (121) is further arranged on the mounting seat (5), and the reversing assembly is located between the mounting frame (13) and the base (51).

6. The pulling resistance testing device for type-c interface earphones according to claim 5, wherein: the switching-over subassembly including set up in installation piece (151) on mount pad (5) and rotation set up in switching-over wheel (152) on installation piece (151), stay cord (121) are walked around the downside of switching-over wheel (152) is to upwards bypassing the upside of first guide wheel (141) and second guide wheel (142), behind the downside of switching-over wheel (152) was walked around in stay cord (121), stay cord (121) are located line segment between switching-over wheel (152) and base (51) is the horizontality.

7. The pulling resistance testing device for type-c interface earphones according to claim 6, wherein: the fixing assembly comprises a fixing cylinder (16) arranged on the mounting seat (5), the fixing cylinder (16) is arranged along the sliding direction of the base (51), and a piston rod of the fixing cylinder (16) abuts against one side, deviating from the clamping assembly, of the base (51).

8. The pulling resistance testing device for type-c interface earphones according to claim 1, wherein: the sliding assembly comprises a sliding rail (6) arranged on the base (51), and the base (51) is provided with a sliding groove matched with the sliding rail (6) in a sliding mode.