Rotating shaft for turning display screen on notebook computer
By using the damping limit structure of multi-pad plates and fastening nuts in the display flip shaft of laptop computers, the problems of large reverse torque and unstable mechanical limits in the prior art are solved, and multi-speed flip and stable stay are achieved , improving the stability of user experience and structure.
Patent Information
- Application Number
- CN202421447961.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The flip shaft structure of the display screen of existing laptops has problems such as large reverse torque, unstable mechanical limits, and easy to break, and the traditional limit structure limits its use range and stability.
The damping limit structure consisting of multiple pads and fastening nuts is adopted. Through the cooperation of the guide groove and the dial, the multi-speed flip and stable retention of the display screen are achieved, which enhances the stability and use range of the shaft.
The stability and multi-speed positioning of the display when flipping are achieved, avoiding automatic rotation due to the release of flipping force, improving the user experience and reducing structural wear.
Smart Images
Figure CN222189795U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a notebook computer, in particular to a connecting shaft for turning a display screen of the notebook computer relative to a host computer. Background Art
[0002] In the prior art, since the anti-torque arm of the rotating shaft is relatively short, the anti-torque force on the rotating shaft is very large, so the mechanical limit of the rotating shaft is greatly damaged. The traditional rotating shaft with limit damping is limited by space and cost, and can only form a limit structure by stamping the sheet metal in the axial direction of the rotating shaft; and the stamping structure has a small deformation and only a single point limit, so the traditional rotating shaft with limit damping has a small limit force and can only be used for small digital products. Therefore, its structural stability and scope of use are greatly limited. For the damping rotating shaft used as a flip cover, the required rotation force is often large, and the stability of the damping limit is also required to be high.
[0003] There is also a circumferential limiting structure for a rotating shaft, which achieves the limiting and rotation functions through a rotating shaft limiting ring positioning pin and multiple limiting rings, but the rotating force arm on the rotating shaft also achieves the rotation and limiting functions only through the cooperation of the protrusions and grooves of the cylindrical structure. There is also a problem of excessive reverse torque causing breakage during rotation positioning; therefore, a damping rotating shaft with a more stable structure that is not prone to displacement and breakage during rotation is needed. Summary of the invention
[0004] The technical problem to be solved by the utility model is to provide a rotating shaft for flipping a display screen on a notebook computer which has good damping effect, high stability and can be positioned in stages.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] The utility model discloses a rotating shaft for flipping a display screen on a notebook computer, comprising a flip cover connector that can be fixedly connected to the side of the display screen and a fixing member that is fixedly connected to the notebook computer housing and has a positioning shaft, and is characterized in that the flip cover connector is composed of a base plate and an ear hook plate that are perpendicular to each other, the base plate is provided with a mounting hole for fixing the display screen thereon, the ear hook plate is provided with an axis hole that can be sleeved on the positioning shaft, and a damping limit structure composed of a plurality of pads sleeved on the positioning shaft and connected in sequence, which can enable the display screen to be lifted and flipped to a set position, is provided on a partial section after the front end of the positioning shaft passes through the axis hole.
[0007] The damping and limiting structure is composed of a first pad, a second pad and a fastening nut. An ear plate shift block protruding forward is provided on the side of the front plate surface of the ear hanging plate. A guide groove which is recessed toward the center of the first pad and has a certain arc length is provided on the side of the rear plate surface of the first pad. The guide groove extends along the peripheral direction of the first pad. The ear plate shift block is embedded in the guide groove when the ear hanging plate, the first pad, the second pad and the fastening nut are fixed to the positioning shaft in a mutually contacting and pressing manner.
[0008] A plate shift block protruding forward is provided on the side of the front plate surface of the first pad, and two guide grooves recessed toward the center of the second pad and having a certain arc length are provided on the side of the rear plate surface of the second pad. The two guide grooves extend along the peripheral direction of the second pad. The plate shift block is embedded in the two guide grooves when the ear hanging plate, the first pad, the second pad and the fastening nut are fixed to the positioning shaft in a mutually contacting and pressing manner.
[0009] In the damping and limiting structure, a third pad is also provided between the second pad and the fastening nut, a second plate shift block protruding forward is provided on the side of the front plate surface of the second pad, and a guide three-groove which is recessed toward the center of the third pad and has a certain arc length is provided on the side of the rear plate surface of the third pad, the guide three-groove extends along the peripheral direction of the third pad, and the two-plate shift block is embedded in the guide three-groove when the ear hanging plate, the first pad, the second pad, the third pad and the fastening nut are fixed to the positioning shaft in a mutually contacting and pressing manner.
[0010] The arc lengths of the first guide groove, the second guide groove and the third guide groove are the same.
[0011] A first gasket is provided between the shaft end clamping position at the rear end of the positioning shaft and the ear hanging plate, and a second gasket is provided between the third gasket and the fastening nut.
[0012] A reinforcing rib plate is also provided on the side of the base plate to enhance the connection strength between the ear hanging plate and the base plate.
[0013] The hinge for flipping the display screen on the notebook computer of the utility model comprises a flip cover connector which can be fixedly connected to the side of the display screen and a fixing part which is fixedly connected to the notebook housing and has a positioning shaft, and also comprises a damping limit structure which is sleeved on the positioning shaft. The damping limit structure can make the display screen using the hinge of the utility model not only avoid automatic rotation due to the release of the flipping force when flipping, but also can flip the display screen to the opening gear required by the user according to the gear. The structure is simple and reasonable, and the user experience is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the rotating shaft of the utility model.
[0015] Figure 2 for Figure 1 Schematic diagram after the axis of rotation is flipped 180 degrees from bottom to top.
[0016] Figure 3 for Figure 1 Schematic diagram of the decomposition.
[0017] The reference numerals are as follows:
[0018] Rotating shaft 1, fixing part 2, positioning plate 21, positioning shaft 22, positioning hole 23, shaft end clamping position 24, flip cover connector 3, base plate 31, mounting hole 32, ear hanging plate 33 、 Axial hole 34, ear plate block 35, reinforcing rib plate 36, first pad 4, first plate block 41, first guide groove 42, second pad 5, second plate block 51, second guide groove 52, third pad 6, third guide groove 61, first gasket 71, second gasket 72, fastening nut 8. DETAILED DESCRIPTION
[0019] like Figure 1-3 As shown, the rotating shaft 1 for flipping the display screen on the notebook computer of the utility model is composed of a fixing part 2, a flip cover connecting part 3 and a plurality of pads made of stainless steel. A damping and limiting structure is provided between the fixing part 2 and the flip cover connecting part 3, which can enable the display screen to be opened, flipped and stayed at a desired position.
[0020] 1. Fixing parts 2
[0021] The positioning plate 21 is composed of a positioning plate 21 and a positioning shaft 22. The positioning plate 21 is provided with a plurality of positioning holes 23. The positioning plate 21 can be fixed to the housing of the notebook by passing bolts through the positioning holes 23. The positioning shaft 22 is an integral structure with the positioning plate 21 and is arranged on the front end surface of the positioning plate 21 (with a plurality of positioning holes 23). Figure 3 Taking the paper direction as an example, the upper left is the back and the lower right is the front), the joint between the positioning shaft 22 and the positioning plate 21 is a stepped vertical surface, which is referred to as the shaft end clamping position 24 hereinafter.
[0022] 2. Flip cover connector 3
[0023] It consists of a base plate 31 and an ear hanging plate 33 which are perpendicular to each other.
[0024] The base plate 31 is provided with a plurality of mounting holes 32 , and the base plate 31 can be fixedly connected to the display screen by bolts, screws, buckles or male and female buckles.
[0025] The ear hook plate 33 is arranged at the rear end of the base plate 31, and is perpendicular to the base plate 31. An axial hole 34 that can be sleeved on the positioning shaft 22 is provided on the ear hook plate 33. The fixing member 2 and the flip cover connector 3 can be connected together by connecting the front end of the positioning shaft 22 through the axial hole 34 and the fastening nut 8.
[0026] A reinforcing rib plate 36 is also provided on the side of the base plate 31 to enhance the connection strength between the ear hanging plate 33 and the base plate 31 .
[0027] 3. Damping limit structure
[0028] The damping limit structure has two functions. First, when the display screen is opened and flipped, it has a certain anti-torque force. When the flipping stops, it can temporarily stay in the flipping position without rotating easily. Second, the flipping position of the display screen has multiple settings. That is, after the display screen is flipped to a certain position, the display screen will stay stably in this position. If you want to enter the next gear, you need to increase the flipping force.
[0029] The damping limit structure is composed of a number of pads sleeved on the positioning shaft 22 and connected in sequence, and specifically includes the following types:
[0030] 1) Two-speed
[0031] The damping and limiting structure is composed of a first pad 4 and a second pad 5 which are assembled between the front surface of the ear hanging plate 33 and the fastening nut 8 .
[0032] A forward-protruding ear plate block 35 is provided on the front side of the ear hanging plate 33, and a guide first groove 42 with a certain arc length is provided on the rear side of the first pad 4, which is concave toward the center of the first pad 4. The guide first groove 42 extends along the peripheral direction of the first pad 4 toward the flipping direction of the display screen. When the ear hanging plate 33, the first pad 4, the second pad 5 and the fastening nut 8 are sequentially connected to each other until they are in contact and pressed, the ear plate block 35 is embedded in the guide first groove 42.
[0033] A plate shift block 41 protruding forward is provided on the side of the front panel surface of the first pad 4, and a second guide groove 52 recessed toward the center of the second pad 5 and having a certain arc length is provided on the side of the rear panel surface of the second pad 5. The second guide groove 52 extends along the peripheral direction of the second pad 5 toward the flipping direction of the display screen. When the ear hanging plate 33, the first pad 4, the second pad 5 and the fastening nut 8 are connected in sequence until they are in contact and pressed against each other, the plate shift block 41 is embedded in the second guide groove 52.
[0034] First gear position: when the display screen is flipped and the flipping force is greater than the sum of the friction force between the ear-hook plate 33 and the first pad 4 and the sliding friction force between the ear-hook plate 33 and the positioning shaft 22, the ear-plate shifting block 35 can move circumferentially in the first guide groove 42 along the first guide groove 42. At this time, if the display screen stops flipping, the display screen can stay at the current position under the action of the friction force between the ear-hook plate 33 and the first pad 4. If the flipping continues and the ear-plate shifting block 35 moves to the end position of the first guide groove 42, the display screen flips to the first gear position. If the flipping stops, the display screen can stay stably at this gear position.
[0035] Second gear position: the display screen continues to flip backward from the first gear position, the ear plate shift block 35 drives the first pad 4 to rotate, and the first plate shift block 41 moves circumferentially in the second guide groove 52 along the second guide groove 52. At this time, the required flipping force is greater than the sum of the friction between the first pad 4 and the second pad 5 and the sliding friction between the ear hanging plate 33, the first pad 4 and the positioning shaft 22. At this time, if the display screen stops flipping, the display screen can stay at the current position under the action of the friction between the first pad 4 and the second pad 5. If the flipping continues and the first plate shift block 41 moves to the groove end position of the second guide groove 52, the display screen flips to the second gear position. If the flipping stops, the display screen can stay stably at this gear position.
[0036] 2) Three-speed
[0037] In the damping and limiting structure, a third pad 6 is further provided between the second pad 5 and the fastening nut 8, and a second plate shift block 51 protruding forward is provided on the side of the front plate surface of the second pad 5, and a guiding three-groove 61 with a certain arc length and recessed toward the center of the third pad 6 is provided on the side of the rear plate surface of the third pad 6, and the guiding three-groove 61 extends along the peripheral direction of the third pad 6, and the second plate shift block 51 is embedded in the guiding three-groove 61 when the ear hanging plate 33, the first pad 4, the second pad 5, the third pad 6 and the fastening nut 8 are fixed to the positioning shaft 22 in a mutually contacting and pressing manner.
[0038] By turning over the display screen according to the method in the aforementioned “1)”, the second plate shifting block 51 can be moved to the slot end position of the guide third slot 61, i.e., the third gear position.
[0039] In the present invention, the arc lengths of the three guide grooves are preferably the same.
[0040] The above three gears allow users to flip the display screen to a satisfactory opening position and stabilize it in this position, greatly improving the user experience.
[0041] In order to reduce the wear of the ear hook plate 33 on the fixing part 2 and reduce the wear of the third pad 6 on the nut, a first gasket 71 is provided between the shaft end position 24 at the rear end of the positioning shaft 22 and the ear hook plate 33, and a second gasket 72 is provided between the third pad 6 and the fastening nut 8.
Claims
1. A hinge for flipping a display screen on a notebook computer, comprising a flip cover connector (3) that can be fixedly connected to the side of the display screen and a fixing member (2) that is fixedly connected to the notebook computer housing and has a positioning shaft (22), characterized in that: The flip cover connecting member (3) is composed of a base plate (31) and an ear hanging plate (33) which are perpendicular to each other. The base plate (31) is provided with a mounting hole (32) for fixing a display screen thereon, and the ear hanging plate (33) is provided with an axis hole (34) which can be sleeved on the positioning shaft (22). A damping limit structure which can enable the display screen to be lifted and flipped to a set position is provided on a section after the front end of the positioning shaft (22) passes through the axis hole (34). The damping limit structure is composed of a plurality of pads sleeved on the positioning shaft (22) and connected in sequence.
2. The hinge for flipping the display screen on a notebook computer according to claim 1, characterized in that: The damping limit structure is composed of a first pad (4), a second pad (5) and a fastening nut (8); an ear plate shifting block (35) protruding forward is provided on the side of the front plate surface of the ear hanging plate (33); a guide groove (42) recessed toward the center of the first pad (4) and having a certain arc length is provided on the side of the rear plate surface of the first pad (4); the guide groove (42) extends along the peripheral direction of the first pad (4); the ear plate shifting block (35) is embedded in the guide groove (42) when the ear hanging plate (33), the first pad (4), the second pad (5) and the fastening nut (8) are fixed to the positioning shaft (22) in a mutually contacting and pressing manner.
3. The hinge for flipping the display screen on a notebook computer according to claim 2, characterized in that: A plate shifting block (41) protruding forward is provided on the side of the front plate surface of the first pad (4), and two guide grooves (52) recessed toward the center of the second pad (5) and having a certain arc length are provided on the side of the rear plate surface of the second pad (5), and the two guide grooves (52) extend along the peripheral direction of the second pad (5), and the plate shifting block (41) is embedded in the two guide grooves (52) when the ear hanging plate (33), the first pad (4), the second pad (5) and the fastening nut (8) are fixed to the positioning shaft (22) in a mutually contacting and pressing manner.
4. The hinge for flipping the display screen on a notebook computer according to claim 3, characterized in that: In the damping limit structure, a third pad (6) is also provided between the second pad (5) and the fastening nut (8); a second plate shifting block (51) protruding forward is provided on the side of the front plate surface of the second pad (5); a guiding three-groove (61) recessed toward the center of the third pad (6) and having a certain arc length is provided on the side of the rear plate surface of the third pad (6); the guiding three-groove (61) extends along the peripheral direction of the third pad (6); the second plate shifting block (51) is embedded in the guiding three-groove (61) when the ear hanging plate (33), the first pad (4), the second pad (5), the third pad (6) and the fastening nut (8) are fixed to the positioning shaft (22) in a mutually contacting and pressing manner.
5. The hinge for flipping the display screen on a notebook computer according to claim 4, characterized in that: The arc lengths of the first guide groove (42), the second guide groove (52) and the third guide groove (61) are the same.
6. The hinge for flipping the display screen on a notebook computer according to claim 5, characterized in that: A first gasket (71) is provided between the shaft end clamp (24) at the rear end of the positioning shaft (22) and the ear hanging plate (33), and a second gasket (72) is provided between the third gasket (6) and the fastening nut (8).
7. The hinge for flipping the display screen on a notebook computer according to claim 6, characterized in that: A reinforcing rib plate (36) is also provided on the side of the base plate (31) for enhancing the connection strength between the ear hanging plate (33) and the base plate (31).