CN201365264Y - Spring-exposed hinge device for mobile phone - Google Patents

Abstract

A spring-exposed hinge device for mobile phone is mainly characterized in that a rotating shaft penetrates through a cam, a concave wheel, a spring and an end cap to achieve an automatic locking function, the cam is arranged outside a shell to rotate, the concave wheel is arranged inside the shell to slide, and the spring is partially exposed outside the shell, so that the spring can be selected from the spring with a larger elastic coefficient, and accordingly, the size of the whole hinge device is reduced, and the assembly is easier.

Description

Hub for mobile phone with exposed spring

technical field

The utility model relates to a mobile phone structure, in particular to a mobile phone hinge with exposed springs.

Background technique

In the shell-type mobile phone, it is composed of a body with buttons and a top cover with a screen, which are connected by a hinge to achieve opening and closing actions. In order to facilitate the opening and closing of the upper cover, a concave wheel and cam structure will be set in the hinge, so that the upper cover can automatically turn to the maximum opening angle when it is opened to a certain angle, or it will automatically turn to the maximum opening angle when it is closed to this angle. Closure is generally called an autolock function.

Since the mobile phone is a portable communication product with compactness requirements, the space for installing the hub is limited. How to provide a hub that can reduce the size and have sufficient rotational torque is the current development trend.

In related previous cases, there is China TW New Patent Publication No. 572575 "Hub Device for Mobile Phone", which is about a hub device for mobile phone. In the specific embodiment of the above-mentioned patent document, the foldable mobile phone includes a main body 10 and an upper cover 20, and several convex parts 12 are arranged on the main body, and a shaft sleeve 30 with a groove 31 and a side hole 32 is fixed in a convex part, and the groove is fixed. Internally assemble the spring 40, the traverse member 50 and the rotating member 60 in sequence. The rotating shaft 62 and the protruding shaft 63 are arranged at the opposite side hole on the rotating member. The protruding shaft protrudes from the side hole and is fixed with the side of the upper cover. A connecting end surface 52 with a pair of concave-convex surfaces 53, 54 is respectively formed on the rotating member and the rotating member. By the cooperation of the convex and concave surfaces formed on the opposite connecting end surfaces of the rotating member and the traverse member, the closing of the upper cover relative to the main body can be controlled. Or to open the purpose, so with a simple space structure type, the purpose of reducing cost and low failure rate can be achieved.

Also, there is a Chinese TW new patent announcement number M287031 "A hub for portable devices", which provides a hub for portable devices, including a shaft sleeve 10, a spring 20, A sliding part 30 and a rotating shaft 40; one end of the sleeve is formed with a container 11, and the opening edge of the container is formed with a number of claws 12; the spring is arranged in the container; the sliding part is arranged in the container , against the spring, one end of the slider is formed with a half positioning portion 41; the rotating shaft is arranged on the bushing and can rotate relative to the bushing, and a cap portion 44 is formed at one end, and a protruding groove is formed on the cap portion The semi-positioning part combined with the semi-positioning part of the slider forms an annular groove 45 on the rotating shaft for the claw to extend into. Through the design of the claw and the annular groove, the rotating shaft can be rotated relative to the sleeve without In addition, this design saves additional fixing parts, so the structure of the hinge can be simplified and the cost can be reduced.

Furthermore, in the previous case of China TW New Patent Announcement No. M294821 "Hinge with multi-stage positioning function", it is a hinge with multi-stage positioning function, which includes a hollow bushing 10, and a shaft 20 is passed through the Wherein, a positioning piece set 30 is installed in the shaft sleeve and sleeved on the shaft, the first positioning piece 31 of the positioning piece set is fixed to the shaft sleeve, the second and third positioning pieces 32, 33 of the positioning piece set are It is fixed with the shaft rod and is respectively arranged on both sides of the first positioning piece. The two sides of the first positioning piece are respectively provided with balls 316, 319. The second and third positioning pieces are respectively provided with opposite positioning recesses 323, 333. It is fixed with the base of the electronic device, and the third positioning piece is fixed with the upper cover of the electronic device. When the upper cover is opened and closed relative to the base, the upper cover drives the second and third positioning pieces to rotate relative to the first positioning piece, so The balls of the first positioning piece fit into the positioning recesses of the second and third positioning pieces respectively, so as to provide the positioning effect when the upper cover is closed relative to the base and when it is opened for use.

However, in the previous proposals listed above, although the automatic locking function can be achieved, due to its structural design, the spring providing the elastic force is completely arranged inside the housing. In order to make the assembly feasible, the elasticity of the spring must be limited. For springs with smaller coefficients, in order to provide the same torsion force, longer springs must be used, which will increase the length of the entire hinge; at the same time, these structural designs are not conducive to assembly operations, and the relative cost is increased.

In addition, once the known hubs are assembled, the torque of the hubs provided by the springs cannot be adjusted, and they can only be applied to the same or similar mobile phones. The adjustability is poor and needs to be improved.

Contents of the invention

The purpose of the utility model is to provide a mobile phone hinge device with exposed springs. By exposing the spring part outside the shell, the spring can be selected with a larger elastic coefficient, so as to reduce the volume of the entire hinge device and make the assembly easier. easy.

According to the above purpose, a mobile phone hub with exposed springs is connected between the mobile phone body and the upper cover; it is characterized in that it includes:

A shell, fixedly connected to the mobile phone body, has two hollow cylinders oppositely forming cut surfaces, one end is an open end, the other end has a closed surface, and a circular hole is arranged on the closed surface;

A rotating shaft, including an enlarged portion and a shaft portion, the enlarged portion is located at one end of the shaft portion and has a larger diameter, and a threaded portion is formed on the other end of the shaft portion opposite to the enlarged portion;

A cam is arranged outside the closed surface of the shell, has a stepped hole through which the enlarged portion and the shaft portion pass, and a pair of protruding teeth are formed on the end face, and a protruding tooth is formed on the other side opposite to the protruding teeth. The non-circular connection part that is connected to the mobile phone cover and can rotate together;

A concave wheel has an inner section combined in the housing and an outer section passing through the closed surface, and has a central shaft hole for the shaft to pass through; the outer section is adjacent to the protruding teeth of the cam A pair of cooperating depressions are formed on the end surface of the inner section; and the inner section has two tangent surfaces matched with the tangent surfaces of the outer shell, and the entire concave wheel is slidably held in the outer shell without rotation;

A spring, combined on the shaft, one end abuts against the inner end surface of the concave wheel, the convex teeth of the cam keep in contact with the concave wheel, and part of it is exposed outside the shell from the open end; and

One end cap is locked on the threaded part of the shaft part and abuts against the other end of the spring.

Through the above-mentioned structure, the spring with a larger elastic coefficient can be selected, thereby reducing the volume of the entire hinge and making assembly easier.

Hereinafter, the structural features and operational effects of the present utility model will be described in detail according to the embodiments shown in the drawings.

Description of drawings

Fig. 1 shows the schematic diagram that the utility model is assembled in mobile phone,

Fig. 2 represents the exploded view of the utility model,

Fig. 2A shows another angle view of the concave wheel of the present utility model,

Fig. 3 represents the combination diagram of the present utility model,

Figure 4 shows a partial sectional view of the utility model,

Fig. 5 shows the sectional view of the utility model,

Fig. 6 shows the action diagram of the present utility model.

Detailed ways

Please refer to Fig. 1, the spring exposed mobile phone hinge 1 provided by the utility model is connected between the main body 21 and the upper cover 22 of the mobile phone 2, so as to provide the main body 21 and the upper cover 22 with an automatic locking (autolock) function .

Please refer to Fig. 2 to Fig. 4, the spring exposed mobile phone hinge device of the present invention is mainly composed of six components such as a shell 11, a rotating shaft 12, a cam 13, a concave wheel 14, a spring 15 and an end cap 16. constitute.

The shell 11 of the present utility model is fixedly connected to the mobile phone body 21, which is a hollow cylinder with two oppositely formed cut surfaces 111, one end is an open end 112, and the other end has a closed surface 113, and a circle is arranged on the closed surface. Shaped hole 114.

The rotating shaft 12 includes an enlarged portion 121 and a shaft portion 122 . The enlarged portion 121 is located at one end of the shaft portion 122 and has a larger diameter. The other end of the shaft portion 122 opposite to the enlarged portion 121 forms a threaded portion 123 .

The cam 13 is arranged outside the closed surface 113 of the casing 11, has a stepped hole 131 for the enlarged portion 121 and the shaft portion 122 to pass through, and forms a pair of convex teeth 132 on the end surface, and forms a pair of convex teeth 132 on the other side. The connection part 133 is non-circular, and the connection part 133 is connected with the upper cover 22 of the mobile phone to rotate together.

The concave wheel 14 has an inner section 141 combined in the housing 11 and an outer section 142 passing through the sealing surface 113, and the center has a shaft hole 143 that provides the shaft portion 122 to pass through; The adjacent end faces of the teeth 132 form a pair of matching recesses 144 (see FIG. 2A ); and the inner section 141 has two cut surfaces 145 that match the cut surfaces 111 of the casing 11, so that the entire concave wheel 14 remains in the casing 11 and slides. Do not turn.

The spring 15 is combined on the shaft portion 122, and can have a larger elastic coefficient, such as a thicker wire diameter, and one end of it is against the end surface of the inner section 141 of the concave wheel 14, so that the convex tooth 132 of the cam 13 remains in the concave of the concave wheel 14 144 are in contact with each other to achieve the function of automatic locking; and part of the spring 15 is exposed outside the shell 11 from the open end 112, as shown in FIG. 3 .

The end cap 16 is locked on the threaded portion 123 of the shaft portion 122 and abuts against the other end of the spring 15 .

When the utility model is assembled, as long as the shaft part 122 of the rotating shaft 12 is put on the cam 13, the casing 11, the concave wheel 14, and the spring 15 in order, and then the end cap 16 is locked on the threaded part 123, the assembly can be completed ; Since the spring 15 is partly exposed outside the shell 11, during assembly, it is not necessary to exert pressure in the shell as the known technology, which is a very easy and fast assembly operation, far saving time and labor compared with the known structure.

In the structure of the present invention, through the elasticity provided by the spring 15 , the protruding teeth 132 of the cam 13 can be kept in interference contact with the recesses 144 of the concave wheel 14 , as shown in FIG. 5 . But when the upper cover 22 of the mobile phone 2 rotates, referring to Fig. 6, it will drive the cam 13 to rotate together (as shown by the arrow G1 in the figure), so that the protruding teeth 132 are separated from the concave 144 of the concave wheel 14, and the concave wheel 14 is in the outer casing. 11 moves inside (as shown by the arrow G2 in the figure) to compress the spring 15; when the upper cover 22 is opened to a certain angle, the protruding teeth 132 will slide into the recess 144 to automatically open to the maximum angle.

Conversely, when the upper cover 22 is to be closed on the body 21, when the upper cover 22 is rotated to the certain angle to approach the closed position, due to the elastic force of the spring 15, the cam 13 will be automatically rotated until the protruding teeth 132 slide into the recess 144 , to achieve the automatic locking function.

It is worth noting that in the present invention, since the cam 13 is arranged outside the casing 11 to rotate, and the spring 15 is partly exposed outside the casing 11 and not completely covered in the casing 11, a spring with a larger elastic coefficient can be selected. For example, those with larger wire diameters will not cause difficulties in assembly. And because the elastic coefficient of the spring 15 can be larger than the known structure, the length of the entire hinge can be relatively reduced during design, so as to meet the requirements of the compactness of the mobile phone.

In addition, because the end cap 16 of the utility model is locked with the threaded portion 123 at one end of the shaft portion 122 of the rotating shaft 12, in addition to making the assembly of the entire hinge very easy, the force of the spring 15 can also be adjusted to adapt to different mobile phones.

Claims (1)

1. A mobile phone hub with exposed springs, which is connected between the mobile phone body and the upper cover; it is characterized in that it includes: A shell, fixedly connected to the mobile phone body, has two hollow cylinders oppositely forming cut surfaces, one end is an open end, the other end has a closed surface, and a circular hole is arranged on the closed surface; A rotating shaft, including an enlarged portion and a shaft portion, the enlarged portion is located at one end of the shaft portion and has a larger diameter, and a threaded portion is formed on the other end of the shaft portion opposite to the enlarged portion; A cam is arranged outside the closed surface of the shell, has a stepped hole through which the enlarged portion and the shaft portion pass, and a pair of protruding teeth are formed on the end face, and a protruding tooth is formed on the other side opposite to the protruding teeth. The non-circular connection part that is connected to the mobile phone cover and can rotate together; A concave wheel has an inner section combined in the housing and an outer section passing through the closed surface, and has a central shaft hole for the shaft to pass through; the outer section is adjacent to the protruding teeth of the cam A pair of cooperating depressions are formed on the end surface of the inner section; and the inner section has two tangent surfaces matched with the tangent surfaces of the outer shell, and the entire concave wheel is slidably held in the outer shell without rotation; A spring, combined on the shaft, one end abuts against the inner end surface of the concave wheel, the convex teeth of the cam keep in contact with the concave wheel, and part of it is exposed outside the shell from the open end; and One end cap is locked on the threaded part of the shaft part and abuts against the other end of the spring.

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