CN110725854A - Gear frame transmission auxiliary supporting structure and double-shaft hinge - Google Patents

Abstract

The invention discloses a gear frame transmission auxiliary support structure and a biaxial hinge, comprising two shaft cores, two guide connecting plates, two transmission gears and a gear frame, the transmission gears are fixed on the corresponding shaft cores, and the guide connecting plates It is sleeved on the two shaft cores, and the guide connecting plate can rotate relative to the two shaft cores in the circumferential direction; the gear frame is clamped between the two guide connecting plates, and the slider and the two guide connecting plates pass between the gear frame and the two guide connecting plates. The guide chute is slidably connected; the gear frame is surrounded by the peripheral sides of the two transmission gears, one side of the gear frame is formed with a first rack that meshes with one transmission gear, and the opposite side of the gear frame is formed with another transmission gear The gear meshes with the second rack of the transmission, and the outer side of the gear frame is used for setting the auxiliary connecting piece for pushing the auxiliary screen. The invention realizes the dual-axis 360-degree synchronous rotation function, meets the support requirements of electronic products such as notebook computers with auxiliary screens, and is also beneficial to the thinning development of notebook computers.

Description

Gear frame transmission auxiliary support structure and biaxial hinge

technical field

The invention relates to a hinge applied to electronic products such as notebook computers, in particular to a gear frame transmission auxiliary support structure and a biaxial hinge.

Background technique

The hinge, also known as the damping shaft, is a connecting element that can provide mutual rotation. It is mainly used between the rotating parts and its base. At present, it is widely used in various digital products and electronic products, such as notebook computers, through hinges. The rotation of the notebook computer can realize the opening and closing function between the main body of the notebook computer and the display screen. At present, the commonly used biaxial hinge is usually that when one axis rotates, the other axis is clamped, and the two rotating shafts are opened and closed sequentially. In order to realize the 360-degree synchronous rotation of the dual shafts, there are also dual shaft hinges that use multiple gears combined to drive. The axes of the multiple gears are in the same direction as the axes of the dual shafts, but this structure usually requires at least 4 gears. The shaft synchronously reverses the function of opening and closing smoothly, and due to the use of many gears, the distance between the two shaft cores is far, which limits the thinning development of electronic devices such as notebook computers. In addition, with the development demand of electronic products such as notebook computers to be more user-friendly, a notebook computer with an auxiliary screen can meet the needs of people for multi-screen display, and users can browse different windows without switching screens. Here The auxiliary screen is usually embedded in the base of the laptop near the hinge. It is necessary to open the auxiliary screen when the main screen is opened, and to avoid interference between the auxiliary screen and the main screen while opening the auxiliary screen. It poses new challenges to the existing dual-axis hinges, that is to say, the existing dual-axis hinges must meet the following functions, that is, while meeting the requirements for the development of thin and light electronic products, it can push the auxiliary screen to open, and the existing dual-axis hinges Therefore, it is very necessary to develop and design a dual-axis hinge that can push the auxiliary screen to open and facilitate the thinning of the notebook computer.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention proposes a gear frame transmission auxiliary support structure and a biaxial hinge, which realizes the 360-degree synchronous rotation function of the biaxial, and satisfies the supporting requirements of electronic products such as notebook computers with auxiliary screens. Conducive to the thinning development of notebook computers.

The technical scheme of the present invention is realized as follows:

A gear frame transmission auxiliary support structure, comprising two shaft cores, two guide connecting plates and a gear frame, corresponding to each shaft core is provided with a transmission gear, the transmission gear is fixed on its corresponding shaft core, and the two Each of the guide connecting plates is sleeved on the two shaft cores at the same time, and is located on the upper and lower sides of the two transmission gears, so that the two shaft cores are radially separated by a set distance, and the two The guide connecting plates can rotate relative to the two shaft cores in the circumferential direction; the gear frame is clamped between the two guide connecting plates, and the gear frame and the two guide connecting plates pass through between the two guide connecting plates. The slider and the guide chute are slidably connected; the gear frame is surrounded by the peripheral sides of the two transmission gears, and a first rack is formed on one side of the gear frame for meshing and transmission with one of the transmission gears, and the The opposite side of the gear frame is formed with a second rack that meshes with the other transmission gear, and the extension direction of the first rack and the second rack is consistent with the extension direction of the guide chute , the outer side of the gear frame is used for setting the auxiliary connector for pushing the auxiliary screen.

A biaxial hinge, comprising the gear frame transmission auxiliary support structure, shaft blocks are formed on both of the shaft cores, and the two guide connecting plates and the gear frame are sleeved on the two shafts After the core is installed, it is locked to the shaft stop by the torsion assembly.

Further, one end of the shaft core is fixed with a first fixing bracket for connecting to the display screen of the electronic device, and one end of the other shaft core is fixed with a second fixing bracket for connecting to the base of the electronic device.

Further, the torsion assembly includes a washer, a plurality of butterfly-shaped elastic sheets and a nut, and the washer and the plurality of the butterfly-shaped elastic sheets are locked and positioned on their corresponding shaft cores through the nut.

Further, a closing cam is sleeved on the two shaft cores, the closing cam is located between one of the guide connecting plates and the butterfly elastic sheet, and the surface of the closing cam and the guide connecting plate is opposite. There are protrusions and grooves of matching size.

Further, a noise-absorbing gasket is arranged between the closing cam and the butterfly elastic sheet, and a side of the closing cam facing the noise-absorbing gasket is spaced with several bosses, corresponding to each boss, the The sound-absorbing gasket is provided with a card slot whose size is matched with the boss, and the boss is engaged in the card slot.

The beneficial effects of the present invention are as follows: the present invention proposes a gear frame transmission auxiliary support structure, and innovatively designs the gear frame structure. A rack and a second rack, since the first rack and the second rack are located on opposite sides, and both mesh with the corresponding transmission gears, therefore, when a shaft is rotated, the gear frame can be used to achieve simultaneous movement , and then realize the 360-degree dual-axis free simultaneous movement of the dual-axis hinge to meet the different deformation forms of electronic products such as notebook computers, such as synchronous reverse opening and closing. The present invention generates a motion pair through the gear frame, and the motion pair provides a new transmission mode for the gear structure transmission. Since the gear transmission of the present invention is located on the outside of the transmission gear, the distance between the two shaft cores can be minimized, which is very favorable for making the notebook computer thinner, that is, it meets the requirements for the development of thin and light electronic products. The two sides of the gear frame are clamped and positioned by two guide connecting plates to realize the positioning function, and the guide connecting plate and the gear frame are connected by the slider and the guide chute to realize the sliding guide function, and the two guide connection The plate is sleeved on the two shaft cores at the same time, and the two separate shaft cores can be combined together. In this way, while rotating the two shaft cores, the gear frame can slide relative to the guide connecting plate. At this time, an auxiliary connecting piece for pushing the auxiliary screen is arranged on the outside of the gear frame to realize the function of pushing the auxiliary screen to open, which satisfies the Support requirements for electronic products such as laptops with secondary screens. The two guide connecting plates and the gear frame of the gear frame transmission auxiliary support structure are locked to the shaft blocks of the two shaft cores through the torsion assembly, forming a dual-shaft hinge that can push the auxiliary screen to open and facilitate the thinning of the notebook computer. , realizes the synchronous rotation of the two axes in the process of opening and closing, and satisfies the opening function of electronic products such as notebook computers with auxiliary screens. Therefore, the gear frame transmission auxiliary support structure and the dual-axis hinge of the present invention realize the 360-degree synchronous rotation function of the dual-axis, and can meet the support requirements of electronic products such as notebook computers with auxiliary screens, and are also conducive to the thinning of the notebook computers. develop.

Description of drawings

Fig. 1 is the schematic diagram of the gear frame transmission auxiliary support structure of the present invention;

Fig. 2 is the schematic diagram that the transmission gear and the gear frame cooperate in the present invention;

Fig. 3 is the perspective view of the biaxial hinge of the present invention;

Fig. 4 is the side view of the biaxial hinge of the present invention;

In conjunction with the accompanying drawings, the following descriptions are made:

1-shaft core, 101-shaft block, 2-guide connecting plate, 3-gear frame, 4-transmission gear, 5-slider, 6-guide chute, 7-first rack, 8-second rack , 9- the first fixed bracket, 10- the second fixed bracket, 11- gasket, 12- butterfly shrapnel, 13- nut, 14- closing cam, 15- muffler gasket.

Detailed ways

In order to be able to understand the technical content of the present invention more clearly, the following examples are given to illustrate in detail, the purpose of which is only to better understand the content of the present invention and not to limit the protection scope of the present invention. The components in the structures in the drawings of the embodiments are not scaled according to normal scales, so they do not represent the actual relative sizes of the structures in the embodiments. The upper or upper side of the structure or surface mentioned therein includes the case where there are other layers in the middle.

As shown in Figures 1 and 2, a gear frame transmission auxiliary support structure includes two shaft cores 1, two guide connecting plates 2 and a gear frame 3, and each shaft core is provided with a transmission gear 4, so The transmission gear is fixed on its corresponding shaft core, and the two guide connecting plates are sleeved on the two shaft cores at the same time, and are located on the upper and lower sides of the two transmission gears, so that the two The shaft cores are radially spaced by a set distance, and both of the two guide connecting plates can rotate relative to the two shaft cores in the circumferential direction; the gear frame is clamped between the two guide connecting plates, and the two guide connecting plates are The gear frame and the two guide connecting plates are slidably connected by the slider 5 and the guide chute 6; the gear frame is surrounded by the peripheral sides of the two transmission gears, and one side of the gear frame is formed with One of the transmission gears meshes with the first rack 7 for transmission, and the opposite side of the gear frame is formed with a second rack 8 that meshes with the other transmission gear. The first rack and the The extension direction of the second rack is consistent with the extension direction of the guide chute, and the outer side of the gear frame is used to set an auxiliary connector for pushing the auxiliary screen.

In the above structure, a gear frame structure is innovatively designed. The opposite inner sides of the gear frame are formed with a first rack and a second rack that mesh with the transmission gears on the two shaft cores. The second racks are located on opposite sides and are meshed with the corresponding transmission gears. Therefore, when rotating a shaft core, it can move simultaneously through the gear frame, thereby realizing the 360-degree free simultaneous movement of the two shafts of the double shaft hinge. In order to meet the different deformation forms of electronic products such as notebook computers, for example, synchronous reverse opening and closing. The present invention generates a motion pair through the gear frame, and the motion pair provides a new transmission mode for the gear structure transmission. Since the gear transmission of the present invention is located on the outside of the transmission gear, the distance between the two shaft cores can be minimized, which is very favorable for making the notebook computer thinner, that is, it meets the requirements for the development of thin and light electronic products. The two sides of the gear frame are clamped and positioned by two guide connecting plates to realize the positioning function, and the guide connecting plate and the gear frame are connected by the slider and the guide chute to realize the sliding guide function, and the two guide connection The plate is sleeved on the two shaft cores at the same time, and the two separate shaft cores can be combined together. In this way, while rotating the two shaft cores, the gear frame can slide relative to the guide connecting plate. At this time, an auxiliary connecting piece for pushing the auxiliary screen is arranged on the outside of the gear frame to realize the function of pushing the auxiliary screen to open, which satisfies the Support requirements for electronic products such as laptops with secondary screens. Therefore, the gear frame transmission auxiliary support structure of the present invention realizes the 360-degree synchronous rotation function of two axes, can meet the support requirements of electronic products such as notebook computers with auxiliary screens, and is also conducive to the thinning development of notebook computers. In addition, the gear frame and the two guide connecting plates form a closed space, in which the transmission gear can be accommodated without adding a protective casing.

As shown in Figures 3 and 4, a biaxial hinge includes a gear frame transmission auxiliary support structure and a torsion assembly, a shaft block 101 is formed on the two shaft cores, the two guide connecting plates and the After the gear frame is sleeved on the two shaft cores, it is locked to the shaft block by the torsion assembly. The torsion assembly can realize the functions of providing torque and tight fitting positioning. In this way, the two guide connecting plates and the gear frame of the gear frame transmission auxiliary support structure are locked to the shaft blocks of the two shaft cores through the torsion assembly, forming a kind of The dual-axis hinge that can push the auxiliary screen to open and facilitate the notebook computer to be thin, realizes the synchronous rotation of the dual-axis during the opening and closing process, and satisfies the opening function of electronic products such as notebook computers with auxiliary screens.

Preferably, referring to FIG. 3 and FIG. 4 , one end of the shaft core is fixed with a first fixing bracket 9 for connecting the display screen of the electronic equipment, and one end of the other shaft core is fixed with the first fixing bracket 9 used for connecting the electronic equipment. The second fixing bracket 10 of the base body. The first and second fixing brackets are used to be embedded in the components that need to be rotated and the base, so as to realize the relative rotation of the components and the base.

Preferably, referring to FIG. 3 , the torsion assembly includes a washer 11 , a plurality of butterfly-shaped elastic pieces 12 and a nut 13 , and the washer and a plurality of the butterfly-shaped elastic pieces are locked and positioned on their corresponding shafts through the nut. on the core. As a preferred embodiment, the torsion assembly in the present invention is mainly composed of a gasket, a butterfly shrapnel and a nut, but is not limited to this. Function.

Preferably, referring to FIG. 3 , a closing cam 14 is sleeved on both of the shaft cores, the closing cam is located between one of the guide connecting plates and the butterfly elastic sheet, and the closing cam is connected to the guide The opposite faces of the connecting plate are provided with protrusions and grooves with matching dimensions. In specific implementation, a groove can be provided on the side of the guide connecting plate facing the closing cam, and a protrusion whose size matches the groove can be provided on the side of the closing cam facing the guiding connecting plate. The mutual cooperation can realize the automatic closing function of the biaxial hinge at the set angle.

Preferably, referring to FIG. 3 , a noise-absorbing gasket 15 is provided between the closing cam and the butterfly-shaped elastic sheet, and a number of bosses are arranged at intervals on the side of the closing cam facing the noise-absorbing gasket, corresponding to each A boss, the muffler gasket is provided with a slot whose size is matched with the boss, and the boss is engaged in the slot. In this way, by arranging a noise-absorbing gasket between the closing cam and the butterfly-shaped elastic piece of the torsion assembly, and then through the cooperation of the card slot and the boss, the abnormal sound produced when the biaxial hinge is automatically closed can be eliminated.

Taking a notebook computer with an auxiliary screen to apply the gear frame transmission auxiliary support structure and the biaxial hinge of the present invention as an example, the working principle is described as follows:

The first fixing bracket of the dual-axis hinge is embedded in the main screen of the notebook computer, the second fixing bracket of the dual-axis hinge is embedded in the base of the notebook computer, and the auxiliary screen is embedded in the base near the connection between the main screen and the base. . In an initial state, the main screen and the base of the notebook computer are in a closed state. When the main screen needs to be opened, the two shaft cores rotate synchronously. At the same time, the transmission gears on the two shaft cores drive the corresponding first rack and the second gear, so that the gear frame slides relative to the two guide connecting plates. In this way, the gear frame The function of driving the auxiliary screen to open can be realized by driving the auxiliary screen through the auxiliary connector.

Those skilled in the art can modify or change the above-mentioned embodiments in various forms. However, without departing from the essence of the present invention, they all fall within the protection scope of the present invention.

Claims (6)

1. A gear frame transmission auxiliary support structure, characterized in that: it comprises two shaft cores (1), two guide connecting plates (2) and a gear frame (3), and each shaft core is provided with a transmission gear (4), the transmission gear is fixed on its corresponding shaft core, and the two guide connecting plates are sleeved on the two shaft cores at the same time, and are located on the upper and lower sides of the two transmission gears, The two shaft cores are radially spaced by a set distance, and the two guide connecting plates can rotate circumferentially relative to the two shaft cores; the gear frame is clamped between the two guide connecting plates. between the gear frame and the two guide connecting plates are slidably connected by the slider (5) and the guide chute (6); the gear frame is surrounded by the peripheral sides of the two transmission gears, so One side of the gear frame is formed with a first rack (7) that meshes with one of the transmission gears, and the opposite side of the gear frame is formed with a second rack that meshes with the other transmission gear. (8), the extension direction of the first rack and the second rack is consistent with the extension direction of the guide chute, and the outer side of the gear frame is used to provide an auxiliary connector for pushing the auxiliary screen. 2. A biaxial hinge, characterized in that it comprises the gear frame transmission auxiliary support structure according to claim 1, a shaft stop (101) is formed on both of the shaft cores, and the two guide connecting plates and After the gear frame is sleeved on the two shaft cores, it is locked to the shaft block by the torsion assembly. 3. The biaxial hinge according to claim 2, characterized in that: one end of one of the shaft cores is fixed with a first fixing bracket (9) for connecting a display screen of an electronic device, and the other end of the shaft core is fixed with a first fixing bracket (9) for connecting a display screen of an electronic device. One end is fixed with a second fixing bracket (10) for connecting to the base of the electronic device. 4. The biaxial hinge according to claim 2, characterized in that: the torsion assembly comprises a washer (11), a plurality of butterfly spring sheets (12) and a nut (13), the washer, a plurality of all the The butterfly shrapnel is locked and positioned on its corresponding shaft core through the nut. 5. The biaxial hinge according to claim 4, characterized in that: closing cams (14) are sleeved on both of the shaft cores, and the closing cams are located on one of the guide connecting plates and the butterfly Between the elastic pieces, protrusions and grooves with matching dimensions are provided on the surface of the closing cam opposite to the guide connecting plate. 6 . The biaxial hinge according to claim 5 , wherein a noise-absorbing gasket ( 15 ) is arranged between the closing cam and the butterfly elastic sheet, and the closing cam faces one end of the noise-absorbing gasket. 7 . A plurality of bosses are arranged at intervals on the side, corresponding to each boss, the sound-absorbing gasket is provided with a slot whose size is matched with the boss, and the boss is engaged in the slot.

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