Gear frame transmission auxiliary support structure and double-axis hinge

Abstract

The present invention discloses a gear frame transmission auxiliary support structure and a double-axis hinge, comprising two shaft cores, two guide connecting plates, two transmission gears and a gear frame, wherein the transmission gears are fixed on the corresponding shaft cores, the guide connecting plates are sleeved on the two shaft cores, and the guide connecting plates can rotate circumferentially relative to the two shaft cores; the gear frame is clamped between the two guide connecting plates, and the gear frame and the two guide connecting plates are slidably connected through sliders and guide slide grooves; the gear frame is surrounded by the circumference of the two transmission gears, one side of the gear frame is formed with a first rack meshing with one transmission gear, the other side opposite to the gear frame is formed with a second rack meshing with another transmission gear, and the outer side of the gear frame is used to set an auxiliary connecting piece for pushing an auxiliary screen. The present invention realizes the 360-degree synchronous rotation function of the double shafts, meets the support requirements of electronic products such as laptop computers with auxiliary screens, and is also conducive to the thinning development of laptop computers.

Description

Technical Field

[0001] The invention relates to a hinge applied to electronic products such as notebook computers, and in particular to a gear frame transmission auxiliary support structure and a double-axis hinge. Background Art

[0002] A hinge, also known as a damping shaft, is a connecting element that can provide mutual rotation. It is mainly used between a rotating component and its base. At present, it is widely used in various digital products and electronic products, such as laptops. The opening and closing function between the laptop body and the display screen can be realized by rotating the hinge. At present, the commonly used dual-axis hinges usually have one axis rotating while the other axis is stuck, and the two shafts are opened and closed sequentially. In order to achieve 360-degree synchronous rotation of the two axes, there are also dual-axis hinges that use a combination of multiple gears for transmission. The axes of the multiple gears are in the same direction as the axes of the two axes. However, this structure usually requires the design of at least 4 gears to achieve the function of smooth synchronous reverse opening and closing of the two axes. In addition, due to the large number of gears used, the distance between the two axis cores is far, which limits the thinning development of electronic devices such as laptops. In addition, with the development demand of electronic products such as laptops towards more user-friendly designs, a laptop with an auxiliary screen can meet people's needs for multi-screen display. Users can browse different windows without switching screens. The auxiliary screen here is usually embedded in the base of the laptop near the hinge. It is necessary to open the auxiliary screen at the same time as the main screen, and to avoid interference between the auxiliary screen and the main screen when opening the auxiliary screen. This poses a new challenge to the existing biaxial hinges. That is to say, the existing biaxial hinges must meet the following functions, namely, while meeting the development demand for thin and light electronic products, they can push the auxiliary screen to open. The functions of the existing biaxial hinges cannot meet this new demand for laptops with auxiliary screens. Therefore, it is very necessary to develop and design a biaxial hinge that can push the auxiliary screen to open and help make the laptop thin. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a gear frame transmission auxiliary support structure and a dual-axis hinge, which realizes the 360-degree synchronous rotation function of the dual axes, meets the support requirements of electronic products such as laptops with auxiliary screens, and is also conducive to the thinning development of laptops.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A gear frame transmission auxiliary support structure, comprising two shaft cores, two guide connecting plates and a gear frame, wherein a transmission gear is provided corresponding to each shaft core, the transmission gear is fixed on its corresponding shaft core, the two guide connecting plates are simultaneously sleeved on the two shaft cores and are located on the upper and lower sides of the two transmission gears, so that the two shaft cores are radially spaced a set distance apart, 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, and the gear frame and the two guide connecting plates are slidably connected by sliders and guide grooves; the gear frame surrounds the circumference of the two transmission gears, one side of the gear frame is formed with a first rack meshing with one of the transmission gears for transmission, and the other side opposite to the gear frame is formed with a second rack meshing with the other transmission gear for transmission, the extension direction of the first rack and the second rack is consistent with the extension direction of the guide groove, and the outer side of the gear frame is used to set an auxiliary connecting member for pushing an auxiliary screen.

[0006] A double-axis hinge includes the gear frame transmission auxiliary support structure, and shaft stops are formed on the two shaft cores. After the two guide connecting plates and the gear frame are sleeved on the two shaft cores, they are locked to the shaft stops through a torsion assembly.

[0007] Furthermore, one end of one of the shaft cores is fixedly connected to a first fixing bracket for connecting to a display screen of an electronic device, and one end of the other shaft core is fixedly connected to a second fixing bracket for connecting to a base of the electronic device.

[0008] Furthermore, the torsion assembly includes a gasket, a plurality of butterfly springs and a nut, and the gasket and the plurality of butterfly springs are locked and positioned on their corresponding shaft cores through the nut.

[0009] Furthermore, a closing cam is sleeved on each of the two shaft cores, and the closing cam is located between one of the guide connecting plates and the butterfly spring piece, and a protrusion and a groove with matching sizes are provided on the surface of the closing cam opposite to the guide connecting plate.

[0010] Furthermore, a silencer gasket is provided between the closing cam and the butterfly spring piece, and a plurality of bosses are provided at intervals on the side of the closing cam facing the silencer gasket. Corresponding to each boss, the silencer gasket is provided with a slot having a size matching that of the boss, and the boss is engaged in the slot.

[0011] The beneficial effects of the present invention are as follows: the present invention proposes a gear frame transmission auxiliary support structure, and innovatively designs a gear frame structure. The first rack and the second rack meshing with the transmission gears on the two shaft cores are formed on the two opposite inner sides of the gear frame. Since the first rack and the second rack are located on opposite sides and meshing with the corresponding transmission gears, when rotating one shaft core, the gear frame can realize simultaneous movement, thereby realizing the 360-degree dual-axis free simultaneous movement of the dual-axis hinge, so as to meet the different deformation forms of electronic products such as laptop computers, such as synchronous reverse opening and closing. The present invention generates a kinematic pair through the gear frame, and the kinematic 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 conducive to the thinning of the laptop computer, that is, it meets the demand 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 a slider and a guide slot to realize the sliding guide function, and the two guide connecting plates are simultaneously sleeved on the two shaft cores, so that 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, which can realize the function of pushing the auxiliary screen to open, that is, meeting the support requirements of electronic products such as laptop computers with auxiliary screens. The two guide connecting plates and the gear frame of the gear frame transmission auxiliary support structure are locked to the shaft stops of the two shaft cores through the torsion assembly, forming a dual-axis hinge that can push the auxiliary screen to open and facilitate the thinning of the laptop computer, realizing the synchronous rotation of the dual axes during the opening and closing process, and meeting the opening function of electronic products such as laptop 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 axes, and can meet the support requirements of electronic products such as laptop computers with auxiliary screens, and are also conducive to the thinning development of laptop computers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the gear frame transmission auxiliary support structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the cooperation between the transmission gear and the gear frame in the present invention;

[0014] Figure 3 is a three-dimensional diagram of the biaxial hinge of the present invention;

[0015] Figure 4 is a side view of the biaxial hinge of the present invention;

[0016] Combined with the accompanying drawings, the following description is given:

[0017] 1-shaft core, 101-shaft stopper, 2-guide connecting plate, 3-gear frame, 4-transmission gear, 5-slider, 6-guide slide groove, 7-first rack, 8-second rack, 9-first fixed bracket, 10-second fixed bracket, 11-gasket, 12-butterfly spring, 13-nut, 14-closing cam, 15-silence gasket. DETAILED DESCRIPTION

[0018] In order to more clearly understand the technical content of the present invention, the following embodiments are described in detail, the purpose of which is only to better understand the content of the present invention but not to limit the scope of protection of the present invention. The components in the structure of the embodiment drawings are not scaled according to normal proportions, so they do not represent the actual relative sizes of the structures in the embodiments. The above or upper side of the structure or surface mentioned therein includes the situation where there are other layers in the middle.

[0019] like Figure 1 and Figure 2 As shown, a gear frame transmission auxiliary support structure comprises two shaft cores 1, two guide connecting plates 2 and a gear frame 3, a transmission gear 4 is provided for each shaft core, the transmission gear is fixed on its corresponding shaft core, the two guide connecting plates are simultaneously sleeved on the two shaft cores, and are located on the upper and lower sides of the two transmission gears, so that 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, and the gear frame and the two guide connecting plates are slidably connected by sliders 5 and guide slide grooves 6; the gear frame surrounds the circumference of the two transmission gears, one side of the gear frame is formed with a first rack 7 meshing with one of the transmission gears, and the other side of the gear frame opposite to the gear frame is formed with a second rack 8 meshing with the other transmission gear, the extension direction of the first rack and the second rack is consistent with the extension direction of the guide slide groove, and the outer side of the gear frame is used to set an auxiliary connecting member for pushing the auxiliary screen.

[0020] In the above structure, a gear frame structure is innovatively designed. The first rack and the second rack meshing with the transmission gears on the two shaft cores are formed on the two opposite inner sides of the gear frame. Since the first rack and the second rack are located on opposite sides and meshing with the corresponding transmission gears, when rotating one shaft core, the gear frame can realize the simultaneous movement, thereby realizing the 360-degree dual-axis free simultaneous movement of the dual-axis hinge, so as to meet the different deformation forms of electronic products such as laptop computers, such as synchronous reverse opening and closing. The present invention generates a kinematic pair through the gear frame, and the kinematic 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 conducive to the thinning of the laptop computer, that is, it meets the demand 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 a slider and a guide slot to realize the sliding guide function, and the two guide connecting plates are simultaneously sleeved on the two shaft cores, so that 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, which can realize the function of pushing the auxiliary screen to open, that is, meeting the support requirements of electronic products such as laptop computers with auxiliary screens. Therefore, the gear frame transmission auxiliary support structure of the present invention realizes the 360-degree synchronous rotation function of the dual axes, and can meet the support requirements of electronic products such as laptop computers with auxiliary screens, and is also conducive to the thinning development of laptop computers. In addition, the gear frame and the two guide connecting plates enclose a closed space, which can accommodate the transmission gears without the need to add a protective shell.

[0021] like Figure 3 and Figure 4 As shown, a dual-axis hinge includes a gear frame transmission auxiliary support structure and a torque assembly, and shaft stops 101 are formed on the two shaft cores. After the two guide connecting plates and the gear frame are sleeved on the two shaft cores, they are locked to the shaft stops by the torque assembly. The torque assembly can provide torque and tight fit 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 stops of the two shaft cores by the torque assembly, forming a dual-axis hinge that can push the auxiliary screen to open and facilitate the laptop to be thin, realizing the synchronous rotation of the dual axes during the opening and closing process, and meeting the opening function of electronic products such as laptops with auxiliary screens.

[0022] Preferably, see Figure 3 and Figure 4One end of one of the shaft cores is fixedly connected to a first fixing bracket 9 for connecting to a display screen of an electronic device, and one end of the other shaft core is fixedly connected to a second fixing bracket 10 for connecting to a base of the electronic device. The first and second fixing brackets are used to be embedded in the component to be rotated and the base to achieve relative rotation between the component and the base.

[0023] Preferably, see Figure 3 The torque assembly includes a gasket 11, a plurality of butterfly springs 12 and a nut 13. The gasket and the plurality of butterfly springs are locked and positioned on their corresponding shaft cores by the nut. As a preferred embodiment, the torque assembly in the present invention is mainly composed of a gasket, a butterfly spring and a nut, but is not limited thereto. In other embodiments, the function of providing a rotational torque of the torque assembly can also be realized by a wrapped torque structure.

[0024] Preferably, see Figure 3 , a closing cam 14 is sleeved on each of the two shaft cores, the closing cam is located between one of the guide connecting plates and the butterfly spring piece, and a protrusion and a groove with matching sizes are provided on the surface of the closing cam opposite to the guide connecting plate. In specific implementation, a groove can be provided on the side of the guide connecting plate facing the closing cam, and a protrusion with matching size with the groove can be provided on the side of the closing cam facing the guide connecting plate. Through the mutual cooperation of the protrusion and the groove, the automatic closing function of the biaxial hinge at a set angle can be realized.

[0025] Preferably, see Figure 3 A silencer gasket 15 is provided between the closing cam and the butterfly spring piece. A plurality of bosses are provided at intervals on the side of the closing cam facing the silencer gasket. Corresponding to each boss, a slot having a size matching that of the boss is provided on the silencer gasket, and the boss is engaged in the slot. In this way, by providing a silencer gasket between the closing cam and the butterfly spring piece of the torsion assembly, and then by cooperating between the slot and the boss, the abnormal sound emitted when the dual-axis hinge is automatically closed can be eliminated.

[0026] The following takes a notebook computer with an auxiliary screen as an example in which the gear frame transmission auxiliary support structure and the biaxial hinge of the present invention are applied to the notebook computer with an auxiliary screen, and the working principle is described as follows:

[0027] The first fixing bracket of the biaxial hinge is embedded in the main screen of the laptop computer, the second fixing bracket of the biaxial hinge is embedded in the base of the laptop computer, and the auxiliary screen is embedded in the base near the connection position between the main screen and the base. In the initial state, the main screen of the laptop computer and the base are in a closed state. When the main screen needs to be opened, the two shaft cores rotate synchronously, and at the same time, the transmission gears on the two shaft cores drive the corresponding first rack and second gear, so that the gear frame slides relative to the two guide connecting plates. In this way, the gear frame drives the auxiliary screen through the auxiliary connecting piece, and the function of driving the auxiliary screen to open can be realized.

[0028] Those skilled in the art may make various modifications or changes to the above embodiments, but without departing from the essence of the present invention, all of them fall within the protection scope of the present invention.

Claims

1. A gear frame transmission auxiliary support structure, characterized in that: The invention comprises two shaft cores (1), two guide connecting plates (2) and a gear frame (3), wherein a transmission gear (4) is provided corresponding to each shaft core, and the transmission gear is fixed on its corresponding shaft core; the two guide connecting plates are simultaneously sleeved on the two shaft cores and located on the upper and lower sides of the two transmission gears, so that 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, and the gear frame and the two guide connecting plates are slidably connected through a slider (5) and a guide slide groove (6); the gear frame surrounds the circumference of the two transmission gears, a first rack (7) meshing with one transmission gear is formed on one side of the gear frame, and a second rack (8) meshing with the other transmission gear is formed on the other side opposite to the gear frame, and the extension direction of the first rack and the second rack is consistent with the extension direction of the guide slide groove, and the outer side of the gear frame is used to set an auxiliary connecting member for pushing the auxiliary screen.

2. A biaxial hinge, characterized in that: It comprises the gear frame transmission auxiliary support structure as claimed in claim 1, wherein shaft stops (101) are formed on the two shaft cores, and after the two guide connecting plates and the gear frame are sleeved on the two shaft cores, they are locked to the shaft stops by a torque assembly.

3. The biaxial hinge according to claim 2, characterized in that: One end of one of the shaft cores is fixedly connected to a first fixing bracket (9) for connecting to a display screen of an electronic device, and one end of the other shaft core is fixedly connected to a second fixing bracket (10) for connecting to a base of the electronic device.

4. The biaxial hinge according to claim 2, characterized in that: The torque assembly comprises a gasket (11), a plurality of butterfly springs (12) and a nut (13); the gasket and the plurality of butterfly springs are locked and positioned on their corresponding shaft cores through the nut.

5. The biaxial hinge according to claim 4, characterized in that: A closing cam (14) is sleeved on each of the two shaft cores. The closing cam is located between one of the guide connecting plates and the butterfly spring sheet. A protrusion and a groove with matching sizes are provided on the surface of the closing cam opposite to the guide connecting plate.

6. The biaxial hinge according to claim 5, characterized in that: A silencer gasket (15) is provided between the closing cam and the butterfly spring sheet. A plurality of bosses are provided at intervals on one side of the closing cam facing the silencer gasket. Corresponding to each boss, a slot having a size matching that of the boss is provided on the silencer gasket, and the boss is engaged in the slot.

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