阅读说明：本技术 耳机保压机构 (Earphone pressure maintaining mechanism ) 是由 赵永梅 于 2021-06-10 设计创作，主要内容包括：本发明公开一种耳机保压机构,所述耳机保压机构包括基座、加压组件及切换组件。其中,所述基座设有保压工位；所述加压组件安装在所述基座上,并位于所述保压工位上方,所述加压组件沿上下方向可活动,而具有靠近所述保压工位的工作位置和远离所述保压工位的待工位置；所述切换组件安装在所述基座上,所述切换组件包括传动轴和偏心轮；其中,所述传动轴的一端与所述加压组件固定；所述偏心轮与所述传动轴的另一端转动连接,所述偏心轮转动时可带动所述传动轴上下活动,而使所述加压组件切换位置。本发明的耳机保压机构,能够稳定保持对耳机进行保压,以提高耳机保压机构的精度。(The invention discloses an earphone pressure maintaining mechanism which comprises a base, a pressurizing assembly and a switching assembly. The base is provided with a pressure maintaining station; the pressurizing assembly is arranged on the base and is positioned above the pressure maintaining station, and the pressurizing assembly can move up and down and is provided with a working position close to the pressure maintaining station and a waiting position far away from the pressure maintaining station; the switching assembly is arranged on the base and comprises a transmission shaft and an eccentric wheel; wherein one end of the transmission shaft is fixed with the pressurizing assembly; the eccentric wheel is rotatably connected with the other end of the transmission shaft, and the eccentric wheel can drive the transmission shaft to move up and down when rotating, so that the pressurizing assembly switches positions. The pressure maintaining mechanism for the earphone can stably maintain the pressure of the earphone, so that the precision of the pressure maintaining mechanism for the earphone is improved.)

1. The utility model provides an earphone pressurize mechanism which characterized in that, earphone pressurize mechanism includes:

the base is provided with a pressure maintaining station;

the pressurizing assembly is arranged on the base and is positioned above the pressure maintaining station, and the pressurizing assembly can move along the vertical direction and is provided with a working position close to the pressure maintaining station and a waiting position far away from the pressure maintaining station; and

the switching assembly is arranged on the base and comprises a transmission shaft and an eccentric wheel; wherein one end of the transmission shaft is fixed with the pressurizing assembly; the eccentric wheel is rotatably connected with the other end of the transmission shaft, and the eccentric wheel can drive the transmission shaft to move up and down when rotating, so that the pressurizing assembly switches positions.

2. The earphone pressure maintaining mechanism according to claim 1, wherein the base includes a bottom plate provided with the pressure maintaining station, a mounting bracket provided on the bottom plate for mounting the pressurizing assembly, and a top plate mounted on the mounting bracket; wherein the switching assembly is mounted on the top plate.

3. The earphone dwell mechanism of claim 2, wherein the eccentric is mounted on the top plate; the transmission shaft is movably inserted in the top plate along the up-down direction, the upper end of the transmission shaft is rotatably connected with the eccentric wheel, and the lower end of the transmission shaft is fixed with the pressurizing assembly.

4. The pressure maintaining mechanism for earphones according to any one of claims 1 to 3, wherein the pressure applying member comprises a pressure applying plate, a sliding plate and at least two sliders; the sliding plate is vertically arranged on one side of the mounting bracket and is fixedly connected with the transmission shaft; the at least two sliding blocks are fixed on the inner plate surface of the sliding plate and are in sliding fit with sliding rails which are arranged on the mounting bracket and extend along the vertical direction; the pressurizing plate is installed on the outer plate surface of the sliding plate.

5. The pressure maintaining mechanism for earphones according to claim 4, wherein said pressure applying means further comprises a pressure applying bracket mounted on the upper plate surface of said pressure applying plate and fixedly connected to the outer plate surface of said sliding plate so as to be supported between said pressure applying plate and said sliding plate.

6. The pressure maintaining mechanism for earphones according to claim 4, wherein the pressure maintaining mechanism for earphones further comprises a guiding member, the guiding member comprises a plurality of guiding shafts extending in the same direction as the transmission shaft, the lower ends of the guiding shafts are fixedly connected to the sliding plate, and the upper ends of the guiding shafts are vertically movably inserted into the top plate.

7. The earphone dwell mechanism of claim 6 wherein the guide assembly further comprises a resilient member and a gasket; the elastic piece and the gasket are sleeved on the guide shaft in a surrounding mode, the upper end of the elastic piece is connected with the top plate, and the gasket is abutted to the top of the sliding plate through the lower end of the elastic piece.

8. The earphone pressure maintaining mechanism according to any one of claims 1 to 3, wherein the base is provided with a plurality of pressure maintaining stations; the number of the pressurizing assemblies and the number of the switching assemblies are both multiple; the plurality of pressurizing assemblies are respectively in one-to-one correspondence with the plurality of pressure maintaining stations; the switching assemblies are respectively connected with the pressurizing assemblies in a one-to-one correspondence mode.

9. The pressure maintaining mechanism for earphones according to any one of claims 2 or 3, wherein the pressure maintaining station is a positioning groove provided on the bottom plate, and a mounting notch is provided on one side of the positioning groove for mounting the earphone module.

10. The earphone pressure maintaining mechanism according to any one of claims 1 to 3, wherein the earphone pressure maintaining mechanism further comprises an earphone module including an upper module and a lower module; wherein the lower module is provided with a lower cavity; the upper module is provided with an upper cavity, and the upper cavity and the lower cavity are matched to form an earphone imitation cavity for accommodating an earphone.

Technical Field

The invention relates to the technical field of earphone processing, in particular to an earphone pressure maintaining mechanism.

Background

At present, various earphones are gradually popularized in the life of people, and great convenience is brought to the life of people, for example, Knight earphones. In the related art, during the manufacturing process of the earphone, after the parts of the earphone (such as the front shell and the rear shell of the earphone) are connected and assembled, the parts need to be reinforced by glue (such as AB glue or hot melt glue) to avoid the parts from loosening. When dispensing, the earphone is placed in the earphone module, then the earphone module is placed in the earphone pressure maintaining mechanism, and then the earphone pressure maintaining mechanism is used for applying pressure to the earphone, so that glue liquid is solidified. However, the conventional pressure maintaining mechanism for the earphone has poor accuracy, and it is difficult to stably maintain the pressure applied to the earphone.

Disclosure of Invention

The invention mainly aims to provide an earphone pressure maintaining mechanism, which aims to stably maintain pressure of an earphone so as to improve the precision of the earphone pressure maintaining mechanism.

In order to achieve the above object, the present invention provides an earphone pressure maintaining mechanism, which includes a base, a pressure applying component and a switching component. The base is provided with a pressure maintaining station; the pressurizing assembly is arranged on the base and is positioned above the pressure maintaining station, and the pressurizing assembly can move along the vertical direction and is provided with a working position close to the pressure maintaining station and a station waiting position far away from the pressure maintaining station; the switching assembly is arranged on the base and comprises a transmission shaft and an eccentric wheel; wherein one end of the transmission shaft is fixed with the pressurizing assembly; the eccentric wheel is rotatably connected with the other end of the transmission shaft, and the eccentric wheel can drive the transmission shaft to move up and down when rotating, so that the pressurizing assembly switches positions.

Optionally, the base comprises a bottom plate provided with the pressure maintaining station, a mounting bracket arranged on the bottom plate for mounting the pressurizing assembly, and a top plate mounted on the mounting bracket; wherein the switching assembly is mounted on the top plate.

Optionally, the eccentric wheel is mounted on the upper plate surface of the top plate; the transmission shaft is movably inserted in the top plate along the up-down direction, the upper end of the transmission shaft is hinged with the eccentric wheel, and the lower end of the transmission shaft is fixed with the pressurizing assembly.

Optionally, the pressing assembly comprises a pressing plate, a sliding plate and at least two sliding blocks; the sliding plate is vertically arranged on one side of the mounting bracket and is fixedly connected with the transmission shaft; the at least two sliding blocks are fixed on the inner plate surface of the sliding plate and are in sliding fit with a sliding rail which is arranged on the mounting bracket and extends along the vertical direction; the pressurizing plate is installed on the outer plate surface of the sliding plate.

Optionally, the pressing assembly further comprises a pressing bracket, wherein the pressing bracket is mounted on the upper plate surface of the pressing plate and is fixedly connected with the outer plate surface of the sliding plate so as to be supported between the pressing plate and the sliding plate.

Optionally, the earphone pressure maintaining mechanism further includes a guide assembly, the guide assembly includes a plurality of guide shafts extending in the same direction as the transmission shaft, the lower ends of the guide shafts are fixedly connected to the sliding plate, and the upper ends of the guide shafts are inserted into the top plate in a vertically movable manner.

Optionally, the guide assembly further comprises a resilient member and a washer; the elastic piece and the gasket are sleeved on the guide shaft in a surrounding mode, the upper end of the elastic piece is connected with the top plate, and the gasket is abutted to the top of the sliding plate through the lower end of the elastic piece.

Optionally, the guide assembly further comprises a washer disposed on top of the sliding plate, the washer being disposed through the guide shaft; the lower end of the elastic piece is abutted against the upper surface of the gasket.

Optionally, the base is provided with a plurality of said pressure holding stations; the number of the pressurizing assemblies and the number of the switching assemblies are both multiple; the plurality of pressurizing assemblies respectively correspond to the plurality of pressure maintaining stations one by one; the switching assemblies are respectively connected with the pressurizing assemblies in a one-to-one correspondence mode.

Optionally, the pressure maintaining station is a positioning groove arranged on the bottom plate, and an installation notch is arranged on one side of the positioning groove for installing the earphone module.

Optionally, the earphone pressure maintaining mechanism further includes an earphone module for accommodating an earphone; the earphone module comprises an upper module and a lower module; wherein the lower module is provided with a lower cavity; the upper module is provided with an upper cavity, and the upper cavity and the lower cavity are matched to form an earphone imitation cavity for accommodating an earphone.

According to the technical scheme, the base is provided with the switching assembly connected with the pressurizing assembly, and the switching assembly comprises a transmission shaft and an eccentric wheel; one end of the transmission shaft is fixedly connected with the pressurizing assembly; the eccentric wheel is rotatably connected with the other end of the transmission shaft, and the transmission shaft can be driven to move up and down when the eccentric wheel is used for transmission, so that the pressurizing assembly is switched between the working position and the standby position. Because the switching device adopts the rotation of eccentric wheel to switch the position of pressurization subassembly, and the eccentric wheel has more accurate tolerance, so can be with the accurate location of pressurization subassembly at operating position, guarantee that the pressurization subassembly can stably keep exerting pressure to the earphone module, effectively improve the precision of earphone pressurize mechanism.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a pressure maintaining mechanism of an earphone according to the present invention;

FIG. 2 is an exploded view of the earphone pressure retention mechanism of FIG. 1;

FIG. 3 is a side view of the earphone pressure retention mechanism of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a front view of the earphone pressure retention mechanism of FIG. 1;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 8 is P in FIG. 7₁An enlarged view of (a);

fig. 9 is a schematic structural diagram of an earphone module according to the present invention;

fig. 10 is a top view of the earphone module of fig. 9;

fig. 11 is a cross-sectional view taken along line D-D of fig. 10.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

For the convenience of understanding the present invention, the principle of pressure maintaining of the earphone will be described first with reference to the structure of the earphone module. Referring to fig. 9 to 11, the earphone module 500 includes an upper module 510 and a lower module 520, and the upper module 510 and the lower module 520 are detachably connected by a pin 530. Wherein, an upper cavity is arranged in the upper module 510; the lower module 520 is provided with a lower cavity, and the lower cavity and the upper cavity are matched to form an earphone imitation cavity 501 for accommodating the earphone 600.

Referring to fig. 1 and 11, when pressure is maintained on the earphone 600, the dispensed earphone 600 is placed in the earphone-shaped cavity 501 of the earphone module 500; then, the earphone module 500 is placed in an earphone pressure maintaining mechanism, the upper module 510 of the earphone module 500 is pressed by the earphone pressure maintaining mechanism, and after the earphone module is kept still for a period of time (for example, after 8 min), the glue on the earphone 600 is dispensed and solidified, so that the earphone 600 can be taken out, and the pressure maintaining of the earphone 600 is completed.

Embodiments of an earphone pressure maintaining mechanism that may be applied to maintain pressure on an earphone 600 are provided. The earphone pressure maintaining mechanism can improve the precision of the earphone pressure maintaining mechanism, so that the earphone pressure maintaining mechanism can stably maintain the pressure applied to the earphone.

Referring to fig. 1 to 3, in an embodiment of the pressure maintaining mechanism for an earphone of the present invention, the pressure maintaining mechanism for an earphone includes a base 100, a pressing element 200, and a switching element 300. Wherein, the base 100 is provided with a pressure maintaining station 111; the pressing assembly 200 is mounted on the base 100 and located above the pressure holding station 111. The pressing member 200 is movable in an up-and-down direction with respect to the base 100, and has a working position close to the pressure holding station 111 and a standby position far from the pressure holding station 111. The switching assembly 300 is installed on the base 100, and the switching assembly 300 includes a transmission shaft 310 and an eccentric wheel 320; one end of the transmission shaft 310 is fixedly connected with the pressurizing assembly 200; the eccentric wheel 320 is rotatably connected to the other end of the transmission shaft 310, and the transmission of the eccentric wheel 320 can drive the transmission shaft 310 to move up and down, so that the pressing assembly 200 can switch positions.

Specifically, the base 100 may be provided with two or more pressure holding stations 111; for example, if the base 100 is provided with two pressure maintaining stations 111, the two pressure maintaining stations 111 may be arranged in the width direction of the base 100, or may be arranged in the length direction of the base 100; if the base 100 is provided with more than two pressure maintaining stations 111, the more than two pressure maintaining stations 111 may be arranged in a row along the same direction, or may be arranged along the same circumferential region, and the arrangement is not limited specifically.

It is understood that the number of the pressing members 200 should be the same as the number of the pressure holding stations 111 on the base 100, so that the pressing members 200 correspond to the pressure holding stations 111 one to one. Each of the pressing members 200 is movable in an up-and-down direction with respect to the base 100, such that the pressing member 200 has an operating position close to the pressure maintaining position and a standby position away from the pressure maintaining position.

For the switching assembly, the number of the switching assemblies 300 may be the same as the number of the pressing assemblies 200, so that the switching assemblies 300 are connected with the pressing assemblies 200 in a one-to-one correspondence, so that one switching assembly 300 drives one pressing assembly 200 to move independently to switch positions, and thus each pressing assembly 200 can press independently. When one of the pressurizing components 200 is in failure, the rest pressurizing devices can be used for pressure maintaining work, so that the applicability of the earphone pressure maintaining mechanism can be improved. Of course, in other embodiments, a plurality of pressing assemblies 200 may be connected through a linkage, and the linkage is connected to one switching assembly 300, so that one switching assembly 300 can simultaneously drive a plurality of pressing assemblies 200 to move to switch positions. The following description mainly takes a switching assembly 300 and a pressurizing assembly 200 as examples.

The driving shaft 310 of the switching assembly 300 is movably installed on the base 100 in the up-down direction, the lower end of the driving shaft 310 is fixedly connected to the pressurizing assembly 200, and the upper end of the driving shaft 310 is rotatably connected to the eccentric wheel 320 through the pin 321. The periphery of the eccentric 320 has a proximal portion closest to the center of rotation of the eccentric 320 and a distal portion farthest from the center of rotation. The eccentric 320 has an initial state (not shown) rotated with its distal portion facing downward against the base 100 (e.g., the top plate 130 of the base 100), and an operational state (shown in fig. 3 and 4) rotated with its proximal portion facing downward. The eccentric 320 can be switched between the initial state and the operating state by rotation.

When the eccentric wheel 320 of the switching assembly 300 is rotated to the initial state, the eccentric wheel 320 lifts the pressing assembly 200 upward, so that the pressing assembly 200 is in the standby position (as shown in fig. 3 and 4). After the earphone cavity module 500 with the built-in earphone 600 is placed in the pressure maintaining station 111 of the earphone pressure maintaining module, rotating the eccentric wheel 320 by 180 degrees, so that the eccentric wheel 320 is switched to a working state from an initial state; in this process, the eccentric 320 releases the driving shaft 310 downward, the driving shaft 310 moves downward, and the pressurizing assembly 200 slides downward; until the pressing member 200 contacts the earphone cavity module 500 at the pressure maintaining station 111, the pressing member 200 presses the upper module 510 of the earphone cavity module 500, so that the pressure of the earphone 600 in the earphone cavity module 500 can be maintained.

After the pressure holding is finished, the eccentric wheel 320 is rotated by 180 degrees again, so that the eccentric wheel 320 is switched to the initial state from the working state; in the process, the eccentric wheel 320 pulls the transmission shaft 310 upward relatively, so that the transmission shaft 310 drives the pressing assembly 200 to slide upward to the standby position, and the pressing assembly 200 releases the earphone cavity module 500. At this time, the earphone cavity module 500 that has undergone pressure holding can be taken out from the pressure holding station 111.

According to the technical scheme of the invention, the switching assembly 300 connected with the pressurizing assembly 200 is arranged on the base 100, and the switching assembly 300 comprises a transmission shaft 310 and an eccentric wheel 320; one end of the transmission shaft 310 is fixedly connected with the pressurizing assembly 200; the eccentric wheel 320 is rotatably connected to the other end of the transmission shaft 310, and the transmission of the eccentric wheel 320 drives the transmission shaft 310 to move up and down, so that the pressing assembly 200 is switched between the working position and the standby position (see the above description). Because the switching device adopts the rotation of eccentric wheel 320 to switch the position of pressurizing assembly 200, and eccentric wheel 320 has more accurate tolerance, so can be with the accurate location of pressurizing assembly 200 at operating position, guarantee that pressurizing assembly 200 can stably keep exerting pressure to the earphone module, effectively improve the precision of earphone pressurize mechanism.

Referring to fig. 1 to 4, in an embodiment, the base 100 includes a bottom plate 110 having a pressure maintaining station 111, a mounting bracket 120 disposed on the bottom plate 110 for mounting the pressure applying assembly 200, and a top plate 130 mounted on the mounting bracket 120; wherein the switching assembly 300 is mounted on the top plate 130.

Specifically, the eccentric 320 is mounted on the upper plate surface of the top plate 130; the transmission shaft 310 is movably inserted on the top plate 130 in the up-down direction, the upper end of the transmission shaft 310 is rotatably connected with the eccentric wheel 320, and the lower end of the transmission shaft 310 is fixedly connected with the pressurizing assembly 200. In the initial state of the eccentric wheel 320, the eccentric portion of the eccentric wheel 320 is pressed against the upper plate surface of the top plate 130 downward, so that the eccentric wheel 320 keeps lifting up the pressing assembly 200. When the eccentric 320 rotates 180 °, the eccentric 320 is switched to the working state, and at this time, the proximal portion of the eccentric 320 is pressed downward against the upper plate surface of the top plate 130 (as shown in fig. 3 and 4), and the eccentric 320 releases the transmission shaft 310.

Further, the switching assembly 300 further comprises a switching handle 330, the switching handle 330 is connected with the eccentric wheel 320, and the switching handle 330 is suitable for being held by a user. Therefore, a user can manually drive the eccentric wheel 320 to rotate by holding the switching handle 330 by hand, and the operation is simple and easy. Of course, in other embodiments, a motor assembly may be provided and coupled to the eccentric 320 such that the motor assembly may drive the eccentric 320 to rotate without manual manipulation by the user.

Referring to fig. 1-4, for the pressing element 200, the pressing element 200 may be designed in various structures. In one embodiment, the pressing assembly 200 includes a sliding plate 210 and a pressing plate 220; wherein, the sliding plate 210 is slidably mounted on the mounting bracket 120 in the up-down direction; the pressing plate 220 is mounted on an outer plate surface of the sliding plate 210 facing away from the mounting bracket 120, and the pressing plate 220 is located above the pressure holding station 111 to press the earphone module 500 through the pressing plate 220.

Specifically, the sliding plate 210 is disposed opposite to the stand vertical plate 121 of the mounting bracket 120; the inner plate surface of the sliding plate 210 is slidably connected to the mounting bracket 120, so that the sliding plate 210 has a large sliding surface, and the stability of the pressing assembly 200 in moving up and down is improved. The plate surface of the pressing plate 220 and the plate surface of the sliding plate 210 are vertically arranged, and the pressing plate 220 is opposite to the pressure maintaining station 111 in the vertical direction. The pressing member 200 slides in the up-and-down direction through the sliding plate 210, and can drive the pressing plate 220 to relatively approach or move away from the pressure maintaining station 111, so as to press the earphone module 500 through the pressing plate 220.

Referring to fig. 5 to 7, for the way that the sliding plate 210 is slidably mounted on the mounting bracket 120 along the vertical direction, at least two sliding blocks 211 may be optionally disposed on the inner plate surface of the sliding plate 210 facing the mounting bracket 120; the mounting bracket 120 is provided with at least a pair of slide rails 123 extending in the up-down direction, the slide rails 123 being adapted to slidably engage with the slide blocks 211 (as shown in fig. 8).

Specifically, two plate surfaces of the stand vertical plate 121 of the mounting stand 120 are provided with a pair of slide rails 123 extending in the up-down direction; the sliding plate 210 of each pressing assembly 200 is provided with a plurality of sliding blocks 211, and the plurality of sliding blocks 211 are fixedly connected with the sliding plate 210, for example, by screws. Of the plurality of sliding blocks 211 of the sliding plate 210, a part of the sliding blocks 211 is slidably engaged with one of the sliding rails 123 on one surface of the vertical supporting plate 121, and the other part of the sliding blocks 211 is slidably engaged with the other sliding rail 123 on the same surface of the vertical supporting plate 121. In this manner, the sliding plate 210 of the pressing assembly 200 can be slidably mounted on the double rail.

Compared with the conventional earphone pressure maintaining mechanism, the pressurizing assembly 200 of the conventional earphone pressure maintaining mechanism is slidably sleeved on a sliding column through a bearing, and the pressurizing assembly 200 of the earphone pressure maintaining mechanism of the invention can enable the pressurizing assembly 200 to have higher parallelism and planeness by mounting the sliding plate 210 on the double rails, so that the pressurizing assembly 200 slides more stably. Of course, in other embodiments, a sliding slot may be directly disposed on the inner plate surface of the sliding plate 210, and the sliding slot is slidably engaged with the sliding rail 123 on the mounting bracket 120.

As for the connection manner of the pressing plate 220 and the sliding plate 210, there may be various connection fixing manners. For example, but not limited to, the sliding plate 210 is provided with an insertion groove 212; one end of the pressurizing plate 220 is inserted into the insertion groove 212; and the portion of the pressing plate 220 inserted into the insertion slot 212 is further fixed to the sliding plate 210 by screws, so as to improve the firmness of the pressing plate 220 mounted on the sliding plate 210.

Referring to fig. 5 and 6, it is considered that the pressing plate 220 of the pressing assembly 200 presses the earphone module 500 when the pressing assembly 200 is in the working position; meanwhile, the earphone module 500 may also generate a reverse acting force on the pressurizing plate 220, which may cause the pressurizing plate 220 to have a tendency of upward-flipping deformation, so that the pressure maintaining acting force is reduced, which is not beneficial to pressure maintaining. To improve the above situation, the pressing assembly 200 may further include a pressing bracket 230, wherein the pressing bracket 230 is mounted on the upper plate surface of the pressing plate 220 and is fixedly connected to the outer plate surface of the sliding plate 210 to support the sliding plate 210 and the pressing plate 220. The pressing bracket 230 may be fixed to the sliding plate 210 and the pressing plate 220 by screws.

Specifically, the outer plate surface of the sliding plate 210 is perpendicular to the upper plate surface of the pressing plate 220, so that a right-angle area is formed between the upper plate surface of the pressing plate 220 and the sliding plate 210. The pressing bracket 230 is installed in the right-angle area and is fixedly connected with the pressing plate 220 and the sliding plate 210 to form a triangle-like stable structure, so that the stability of the installation of the pressing plate 220 can be enhanced, the pressing plate 220 and the sliding plate 210 can be kept vertical, and the verticality of the pressing plate 220 and the sliding plate 210 can be improved. When the pressing plate 220 is subjected to the reverse force of the earphone module 500, the pressing bracket 230 presses the pressing plate 220 downward, thereby enhancing the strength of the pressing plate 220 and ensuring that the pressing plate 220 stably presses the earphone module 500.

Referring to fig. 1 to 3, in an embodiment, the earphone pressure maintaining mechanism further includes a guide assembly 400, the guide assembly 400 includes a plurality of guide shafts 410 extending in the same direction as the transmission shaft 310, lower ends of the guide shafts 410 are fixedly connected to the sliding plate 210 (as shown in fig. 3 and 5), and upper ends of the guide shafts 410 are vertically movably inserted into the top plate 130.

Specifically, the pressing assembly 200 may be correspondingly configured with one or two or more guiding assemblies 400. Here, in order to improve the smoothness of the sliding of the pressing assembly 200, the pressing assembly 200 is correspondingly provided with two guide assemblies 400, and the two guide assemblies 400 are respectively arranged at two ends of the upper side of the sliding plate 210; the guide shaft 410 of each guide assembly 400 is arranged in the same direction as the transmission shaft 310 of the switching assembly 300, the lower end of the guide shaft 410 is fixedly connected with the sliding plate 210, and the upper end of the guide shaft 410 is inserted in the top plate 130 in a vertically movable manner, so that the sliding smoothness of the pressurizing assembly 200 can be guided by matching with the transmission shaft 310, and the pressurizing strength of the pressurizing assembly 200 is improved.

Further, the guide assembly 400 further includes an elastic member 420, the elastic member 420 is sleeved on the guide shaft 410, an upper end of the elastic member 420 is connected to the top plate 130, and a lower end of the elastic member 420 abuts against the sliding plate 210. The elastic member 420 may be selected as a spring. When the eccentric wheel 320 of the switching assembly 300 is in the initial state, the transmission shaft 310 of the switching assembly 300 pulls the pressing assembly 200 upwards, so that the pressing assembly 200 is in the standby position; at this time, the elastic member 420 is pressed by the sliding plate 210 and the top plate 130, and elastic potential energy is accumulated. When pressure maintaining is needed, the eccentric wheel 320 of the switching component 300 is switched to a working state, the eccentric wheel 320 releases the transmission shaft 310 downwards, the transmission shaft 310 moves downwards, and the pressurizing component 200 slides downwards to a pressure maintaining position; meanwhile, the elastic member 420 also releases its elastic potential energy to press the pressurizing assembly 200 downward, so as to increase the pressure of the pressurizing assembly 200 pressing the earphone module 500 located on the pressure maintaining station 111, thereby facilitating to increase the pressure of the pressure maintaining.

In consideration of the above, the width of the upper side of the sliding plate 210 is narrow, and the area of the sliding plate 210 against which the elastic member 420 can abut is small, which is not beneficial to the elastic member 420 to stably abut against the sliding plate 210, so that the sliding plate 210 is not easily stressed. In view of this, in order to solve this problem, the guide assembly 400 may optionally further include a washer 430 disposed on the top of the sliding plate 210, the washer 430 being inserted on the guide shaft 410; the lower end of the elastic member 420 holds the washer 430 against the top of the sliding plate 210.

Specifically, the gasket 430 is disposed in a ring shape; a washer 430 is fitted around the lower end of the guide shaft 410 and abuts against the top of the slide. The elastic member 420 is sleeved on the guide shaft 410 and positioned above the washer 430; the lower end of the elastic member 420 abuts against the upper surface of the gasket 430, thereby abutting the gasket 430 against the top of the sliding plate 210. The gasket 430 has a large surface area, so that an effective area for the gasket 430 to contact and abut against the elastic member 420 is large, and the elastic member 420 can stably apply pressure to the sliding plate 210 through the gasket 430.

Referring to fig. 1, according to any of the above embodiments, the base 100 is provided with a plurality of pressure maintaining stations 111; the number of the pressurizing assemblies 200 and the switching assemblies 300 is multiple; wherein, the plurality of pressurizing assemblies 200 are respectively in one-to-one correspondence with the plurality of pressure maintaining stations 111; the plurality of switching members 300 are connected to the plurality of pressurizing members 200 in a one-to-one correspondence. The specific structure and connection relationship of the pressurizing assembly 200 and the switching assembly 300 can be implemented with reference to the foregoing embodiments. So, two at least earphone die cavity modules 500 can be put into to earphone pressurizer to can carry out the pressurize to two at least earphones 600 simultaneously (specifically refer to the introduction before), so, can effectively improve earphone pressurizer carries out the efficiency of pressurize to earphone 600, and then improves earphone production efficiency.

In this embodiment, the bottom plate 110 of the base 100 may be optionally provided with two pressure maintaining stations 111, and the two pressure maintaining stations 111 are respectively located at two sides of the mounting bracket 120. The bottom plate 110 may be made of stainless steel 304, so that the bottom plate 110 has high strength and stability. The mounting bracket 120 includes a bracket vertical plate 121 fixed on the bottom plate 110, and a bracket end plate 122 disposed at both ends of the bracket vertical plate 121 and connecting the bracket vertical plate 121 and the bottom plate 110, the bracket end plate 122 being used to fix and support the bracket vertical plate 121. The support vertical plate 121 divides the bottom plate 110 into two parts located at two sides of the support vertical plate 121; two parts of the bottom plate 110, which are positioned at two sides of the support vertical plate 121, are provided with a pressure maintaining station 111.

Based on this, the number of the pressing assemblies 200 should also be two; the two pressurizing assemblies 200 are respectively installed at both sides of the installation frame 120, and are disposed opposite to the two pressure maintaining stations 111 in the up-down direction. Correspondingly, the number of the switching assemblies 300 is also two, and the two switching assemblies 300 are both mounted on the top plate 130 of the base 100 and are respectively connected with the two pressurizing assemblies 200 in a one-to-one correspondence manner. Thus, the two switching components 300 can respectively drive the pressurizing component 200 to independently move, so that the earphone pressure maintaining mechanism can simultaneously maintain the pressure of the two earphone modules 500 at one time, thereby improving the production efficiency; of course, the pressure maintaining mechanism may also maintain the pressure of the earphone modules 500 one by one, so as to improve the applicability of the pressure maintaining mechanism.

Optionally, the pressure maintaining station 111 is a positioning groove 111 disposed on the bottom plate 110, and a mounting notch 112 is disposed on one side of the positioning groove 111 for mounting the earphone module 500. When pressure maintaining is performed, the earphone module 500 with the built-in earphone 600 is pushed into the positioning groove 111 from the installation notch 112, so that the earphone module 500 is limited in the positioning groove 111, and the earphone module 500 is not easily moved and displaced. After the pressure holding is finished, the earphone module 500 is moved out from the mounting notch 112 of the positioning groove 111, so that the earphone module is convenient to mount and high in stability.

Referring to fig. 1, 9 to 11, according to any of the above embodiments, for the earphone module 500, the earphone module 500 includes an upper module 510 and a lower module 520, and the upper module 510 and the lower module 520 are detachably connected by a pin 530. Wherein, an upper cavity is arranged in the upper module 510; the lower module 520 is provided with a lower cavity, and the lower cavity and the upper cavity cooperate to form an earphone imitation cavity 501 for accommodating the earphone 600.

Specifically, the outer contour of the earphone module 500 may be a cube, and the height tolerance of the earphone module 500 does not exceed 0.02 mm; a pre-pressing gap is arranged between the upper module 510 and the lower module 520 of the earphone module 500, and the height of the pre-pressing gap is 1 mm; the earphone module 500 can be pressed by 2mm under the pressure of the earphone pressure maintaining mechanism. The upper module 510 and the lower module 520 are provided with pin holes for inserting the pins 530; wherein, the depth tolerance of the pin hole of the upper module 510 is 0 mm-0.04 mm; the depth tolerance of the pin hole of the lower module 520 is 0mm to 0.02mm, so that the pin 530 can be stably inserted into the pin hole when the earphone pressure maintaining mechanism presses the earphone module 500. In addition, the upper periphery of the lower cavity of the lower module 510 is higher than the parting line of the front and rear cases of the earphone 600 by 1mm, so that the parting line of the front and rear cases of the earphone 600 is located in the lower cavity of the lower module 510.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.