Pivot with high-strength stop structure

Abstract

The utility model discloses a pivot with a high-strength stop structure, which comprises a rotating shaft, an LCD (liquid crystal display) bearing frame is arranged on one side of the rotating shaft, a stop block is arranged on one side, far away from the LCD bearing frame, of the rotating shaft, a system bearing frame is arranged at the bottom of the stop block, a fixing plate is arranged on one side of the stop block, a concave wheel is arranged on one side of the fixing plate, and the system bearing frame is arranged on the other side of the fixing plate. A cam is arranged on one side of the concave wheel, an elastic piece is arranged on one side of the cam, an auxiliary staddle is arranged on one side of the elastic piece, a friction plate is arranged on one side of the auxiliary staddle, and a nut is arranged on one side of the friction plate. The stop strength of the pivot and the stability of the overall structure are remarkably improved, meanwhile, the stability and reliability of rotation are enhanced, the durability and stability of the pivot are further improved through the ingenious layout of the fixing plate, the elastic piece and other components, and the requirement for high quality is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pivot, more specifically, the utility model relates to a pivot with high-strength stop structure. BACKGROUND

[0002] Pivot is an important element for connecting two parts on a notebook computer to achieve rotational motion. Traditional pivot design often has problems of insufficient strength and poor wear resistance, especially in high-load and frequent motion application scenarios, which can cause the pivot to fail prematurely, affecting the stability and service life of the device.

[0003] After searching, the existing patent (publication number: CN218207442U) discloses a pivot with independent stop structure, which includes a pivot body, a first connecting piece, and a second connecting piece connected with the pivot body. The first connecting piece is connected with a torsion cover that can surround the pivot body, and the torsion cover has a radial opening. The first connecting piece is also connected with a stop piece, which has a first stop surface and a second stop surface. The pivot body is provided with a stop arc-shaped protrusion, the ends of which can respectively contact the first stop surface and the second stop surface. Since the stop piece is independently arranged (separated from the torsion cover), the contact and cooperation between the stop arc-shaped protrusion and the stop piece will not affect the torsion cover, and thus will not enlarge the radial opening and affect the torsion size of the pivot body. Therefore, this embodiment has the advantages of stable operation, clever structure, and long service life. The inventor found the following problems in the process of implementing the utility model:

[0004] The existing pivot may be worn, loose or damaged when the notebook computer is used for a long time or bears a large external force, and the contact area between the stop block and the rotating shaft is not large enough, resulting in low overall stop strength and easy disconnection of the notebook computer pivot.

[0005] Therefore, a pivot with high-strength stop structure is proposed to solve the above problems. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pivot with high-strength stop structure to solve the problems raised in the above background art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a pivot with a high-strength stop structure includes a rotating shaft, an LCD support frame is provided on one side of the rotating shaft, a stop block is provided on the side of the rotating shaft away from the LCD support frame, a system support frame is provided at the bottom of the stop block, a fixing plate is provided on one side of the stop block, a concave wheel is provided on one side of the fixing plate, a cam is provided on one side of the concave wheel, a spring sheet is provided on one side of the cam, an auxiliary support frame is provided on one side of the spring sheet, a friction plate is provided on one side of the auxiliary support frame, and a nut is provided on one side of the friction plate.

[0008] Preferably, four groups of the fixing plates are provided, and the four groups of the fixing plates are respectively provided on one side of the stop block, the elastic sheet, the auxiliary support frame and the friction plate.

[0009] Preferably, rivets are provided on outer walls of the rotating shaft and the auxiliary support frame, the rotating shaft is connected to the LCD support frame via the rivets, and the auxiliary support frame is connected to the system support frame via the rivets.

[0010] Preferably, the stop block is made by metal injection molding, and the rotating shaft is made by CNC turning.

[0011] Preferably, the concave wheel and the cam are fully engaged with each other without any gap when they are staggered and evenly distributed on the pitch circle.

[0012] Preferably, when the rotating shaft rotates, the elastic piece can generate radial friction along the outer wall of the rotating shaft.

[0013] Technical effects and advantages of this utility model:

[0014] 1. Compared with the existing technology, the pivot with a high-strength stop structure adopts the stop block made by MIM metal injection molding process and the rotating shaft made by CNC computer numerical control turning. Compared with the traditional structure, the two increase the contact area of ​​the parts when they are in rotational contact. This not only improves the overall stop strength, but also because the stop block is designed with a larger stop area, it further enhances the stability and durability of the structure on the laptop.

[0015] 2. Compared with the existing technology, the pivot with a high-strength stop structure can be fully engaged without gaps when the concave wheels and cams are staggered and evenly distributed on the pitch circle, which shows extremely high design and manufacturing precision. At the same time, when the shaft rotates, the spring can generate radial friction along the outer wall of the shaft. This design not only ensures the smoothness of rotation, but also improves the reliability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0017] Figure 2 It is partial solid structure schematic view of the elastic sheet and auxiliary support frame of the utility model.

[0018] Figure 3 It is partial solid structure schematic view of the stop block of the utility model.

[0019] The reference signs are: 1, pivot; 2, LCD support frame; 3, stop block; 4, system support frame; 5, fixed plate; 6, concave wheel; 7, cam; 8, elastic sheet; 9, auxiliary support frame; 10, friction plate; 11, nut; 12, rivet. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Embodiment 1

[0022] As shown in the accompanying drawings Figures 1 to 3 The pivot with high-strength stop structure comprises a pivot 1, the pivot 1 is made of alloy steel material, the pivot 1 is precisely turned by using CNC technology, the CNC technology can accurately control the movement of a tool according to a preset program, so that the pivot 1 shape and size meeting the design requirements are processed, one side of the pivot 1 is provided with an LCD support frame 2, the LCD support frame 2 is made of high-strength metal material, the LCD support frame 2 is a key supporting structure, and bears the important responsibility of fixing and supporting an LCD screen, the LCD support frame 2 ensures that the screen is stably connected on the pivot 1, prevents shaking or falling off in the opening, closing or using process, and guarantees that the notebook computer is closed in use.

[0023] The rotation shaft 1 is provided with a stop block 3 on the side away from the LCD support frame 2, the stop block 3 is made of high-strength metal material, the main function of the stop block 3 is to limit the rotation range of the LCD support frame 2, prevent it from excessive turning or shaking, through the interaction of the stop block 3 and the rotation shaft 1, ensure that the LCD support frame 2 is stably fixed on the equipment within the predetermined angle range, at the same time, the stop block 3 increases the contact area between the rotation shaft 1, so that the overall pivot structure strength is higher, the bottom of the stop block 3 is provided with a system support frame 4, the system support frame 4 is also made of high-hardness metal material, the system support frame 4 as the basic framework of the equipment, bears the important responsibility of fixing and supporting various components, the system support frame 4 ensures that all parts can be stably connected together, forms a compact and stable whole, at the same time, the system support frame 4 not only has the function of fixing, but also can effectively protect the internal components from external impact and damage, one side of the stop block 3 is provided with a fixed plate 5, the main function of the fixed plate 5 is to fix and support other components, ensure that they maintain stable position during use, the fixed plate 5 provides reliable connection point for the rotation shaft 1, LCD support frame 2 and so on, prevent them from shaking or falling off, at the same time, by connecting various components together, the fixed plate 5 enhances the stability of the overall structure.

[0024] One side of the fixed plate 5 is provided with a concave wheel 6, one side of the concave wheel 6 is provided with a convex wheel 7, the concave wheel 6 and the convex wheel 7 are made of high-strength metal material, the concave wheel 6 and the convex wheel 7 pass through its unique shape and structure, transfer the force from one place to another, and control the movement trajectory of the rotation shaft 1 more stable, at the same time, the structure of the concave wheel 6 and the convex wheel 7 can effectively reduce the impact and noise in the movement process, and the concave wheel 6 and the convex wheel 7 make the rotation of the notebook computer more operational when opening and closing, one side of the convex wheel 7 is provided with a spring piece 8, the spring piece 8 is made of stainless steel material, the spring piece 8 provides force through its elasticity, and controls the movement speed and range of the rotation shaft 1 and other components, at the same time, the spring piece 8 can store energy when needed, and convert the energy into movement when released, so as to realize the precise control of the components, one side of the spring piece 8 is provided with an auxiliary support frame 9, the auxiliary support frame 9 provides connection for the tail of the rotation shaft 1 and the system support frame 4, this design can effectively disperse the force and reduce the vibration, when the equipment is impacted by external force, the auxiliary support frame 9 can evenly distribute the force to each connection point, reduce the impact force borne by a single component, so as to protect the internal components from damage, one side of the auxiliary support frame 9 is provided with a friction piece 10, the friction piece 10 is made of rubber material, the main function of the friction piece 10 is to provide enough friction to prevent relative sliding between components, and by adjusting the pressure and contact area between the friction piece 10 and the fixed plate 5, the movement speed and range of the components can be accurately controlled, one side of the friction piece 10 is provided with a nut 11, the nut 11 can control the friction between the friction piece 10 and the rotation shaft 1, so as to control the resistance of rotation.

[0025] Example 2

[0026] On the basis of example 1, the scheme in example 1 is further refined in combination with the specific working mode as follows: Figures 1 to 3 As shown in the following description:

[0027] As a preferred embodiment, four sets of fixed plates 5 are provided, and the four sets of fixed plates 5 are respectively arranged on one side of the stop block 3, the elastic sheet 8, the auxiliary support 9 and the friction plate 10. Further, the fixed plates 5 can effectively disperse force and reduce vibration, and at the same time, they can effectively connect these components together to form a stable overall structure, which helps to reduce the relative movement between components, improve the rigidity and stability of the overall equipment, and significantly enhance the connection strength between the pivot and the notebook computer, reduce the loosening phenomenon caused by long-term use or improper operation, thereby ensuring the stability of the notebook computer screen during opening and closing.

[0028] As a preferred embodiment, rivets 12 are arranged on the outer walls of the pivot 1 and the auxiliary support 9, the pivot 1 is connected with the LCD support 2 through the rivets 12, and the auxiliary support 9 is connected with the system support 4 through the rivets 12. Further, as a kind of mechanical fastener, the rivets 12 can effectively connect the pivot 1, the LCD support 2, the auxiliary support 9 and the system support 4 together tightly, and the rivet connection can maintain long-term stability and durability, which is less affected by environmental factors compared with welding or bonding connection.

[0029] As a preferred embodiment, the stop block 3 is made of MIM metal injection molding process, and the pivot 1 is made of CNC computer numerical control turning. Further, MIM technology can produce high-precision and complex-shaped parts. For such parts as the stop block 3, MIM technology can ensure that the size accuracy and geometric shape meet the design requirements, thereby realizing precise control of the movement of the equipment. CNC turning technology has the characteristics of high precision and repeatability, and through the computer control system, it can accurately process according to the preset program to ensure that the size accuracy and geometric shape of the pivot 1 meet the design requirements.

[0030] As a preferred embodiment, the concave wheel 6 and the convex wheel 7 are completely meshed without gap when they are staggered and uniformly distributed on the index circle. Further, since the concave wheel 6 and the convex wheel 7 are staggered and uniformly distributed on the index circle and completely meshed without gap, they can realize precise force transmission. This design can effectively increase the stability of the connection between the notebook computer screen and the main machine, prevent damage caused by vibration or impact during use, and ensure that the screen is more stable when opening and closing, reducing the risk of damage caused by improper operation.

[0031] As a preferred embodiment, when the rotating shaft 1 rotates, the elastic sheet 8 can generate a radial friction force along the outer wall of the rotating shaft 1, and further, when the rotating shaft 1 rotates, the radial friction force generated by the elastic sheet 8 along the outer wall thereof can effectively stabilize the rotating speed, and such a design can reduce speed fluctuations caused by external forces or internal force changes, and the elastic sheet can provide additional support force in the pivoting process, so that the screen opening and closing are more stable, and shaking is reduced, which is particularly important for users who use a notebook computer for a long time, because it can reduce the pressure on the wrist and neck.

[0032] The working process of the utility model is as follows: firstly, when a user needs to use a notebook computer, the two sides of the computer are pressed to start the force, then the rotating shaft 1 starts to rotate, the LCD support frame 2 and other related components on it also rotate, along with the rotation of the rotating shaft 1, the elastic sheet 8 generates a radial friction force along the outer wall of the rotating shaft 1, then in the rotating process of the rotating shaft 1, the stop block 3 and the four groups of fixed plates 5 jointly act to provide additional stability and support, the auxiliary support frame 9 is firmly connected with the system support frame 4 through the rivet 12, and additional support and stability are provided for the rotating shaft, and the above is the working principle of the pivot with the high-strength stop structure.

Claims

1. A pivot with a high-strength stop structure, comprising a rotating shaft (1), characterized in that: An LCD support frame (2) is provided on one side of the rotating shaft (1), a stop block (3) is provided on the side of the rotating shaft (1) away from the LCD support frame (2), a system support frame (4) is provided at the bottom of the stop block (3), a fixing plate (5) is provided on one side of the stop block (3), a concave wheel (6) is provided on one side of the fixing plate (5), a cam (7) is provided on one side of the concave wheel (6), a spring piece (8) is provided on one side of the cam (7), an auxiliary support frame (9) is provided on one side of the spring piece (8), a friction plate (10) is provided on one side of the auxiliary support frame (9), and a nut (11) is provided on one side of the friction plate (10).

2. The pivot with a high-strength stop structure according to claim 1, characterized in that: Four groups of the fixing plates (5) are provided, and the four groups of the fixing plates (5) are respectively provided on one side of the stop block (3), the spring plate (8), the auxiliary support frame (9) and the friction plate (10).

3. The pivot with a high-strength stop structure according to claim 1, characterized in that: Rivets (12) are provided on the outer walls of the rotating shaft (1) and the auxiliary support frame (9); the rotating shaft (1) is connected to the LCD support frame (2) via the rivets (12); and the auxiliary support frame (9) is connected to the system support frame (4) via the rivets (12).

4. The pivot with a high-strength stop structure according to claim 1, characterized in that: The stop block (3) is manufactured by metal injection molding, and the rotating shaft (1) is manufactured by CNC turning.

5. The pivot with a high-strength stop structure according to claim 1, characterized in that: The concave wheel (6) and the cam (7) are completely meshed when they are staggered and evenly distributed on the pitch circle without any gap.

6. The pivot with a high-strength stop structure according to claim 1, characterized in that: When the rotating shaft (1) rotates, the elastic piece (8) can generate radial friction along the outer wall of the rotating shaft (1).

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