Damping active joint mechanism and fixation device

Abstract

This utility model discloses a damping movable joint mechanism and a fixing device. The damping movable joint mechanism includes a base and a connector with a movable part at one end, which is movably connected to the base. The base has a storage cavity, a damping adjustment cavity, and a fixing cover. The fixing cover has a fixing through hole communicating with the damping adjustment cavity. The damping adjustment cavity contains a damping adjustment component, which includes a damping plate with a hardness lower than that of the movable part and a damping adjustment rod connected to the fixing through hole. When adjusting the damping, the damping between the damping plate and the movable part is changed by adjusting the damping rod. In use, the damping magnitude is adjusted by adjusting the damping adjustment rod to change the damping between the damping plate and the movable part on the connector. The damping plate has a hardness lower than that of the movable part, which increases the contact area with the movable part when under pressure, thereby increasing the resistance. At the same time, the low hardness of the damping plate avoids rigid hard friction when the movable part is adjusted, thus improving its service life.

Description

Technical Field

[0001] This utility model relates to the field of mechanical movement technology, and in particular to a damped movable joint mechanism and fixing device. Background Technology

[0002] In daily life, it's common to need a holder to secure devices, such as a phone holder in a car for better navigation. While the holder's position is generally fixed, users may need to adjust it while driving, causing changes in the relative position to the holder and necessitating adjustment. Therefore, adjustable holders are often designed. Currently, adjustable holders consist of a ball joint connected to a mounting base and a base with multiple clamps. Adjustable nuts on the clamps allow for adjusting the tightness of the clamps. Although such an adjustable holder structure can provide stable fixation in multiple directions, the hard friction between the ball joint and the clamps can lead to instability or failure of the fixation over time, causing the holder to lose stability in the adjusted position. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a damped movable joint mechanism and a fixing device, wherein the damped movable joint mechanism can improve the stability of joint adjustment and service life.

[0004] To solve the above-mentioned technical problems, this utility model provides a damping movable joint mechanism and device. The damping movable joint mechanism includes a base and a connector. One end of the connector is provided with a spherical movable part that is movably connected to the base. The base is provided with a housing cavity for fixing the movable part and a damping adjustment cavity communicating with the housing cavity, as well as a fixing cover connected to the base. The fixing cover is provided with a fixing through hole communicating with the damping adjustment cavity. The damping adjustment cavity is provided with a damping adjustment component. The damping adjustment component includes a damping plate with a hardness less than that of the movable part and a damping adjustment rod connected to the fixing through hole. When adjusting the damping, the damping between the damping plate and the movable part is changed by the damping adjustment rod.

[0005] In one specific embodiment, the damping adjustment assembly further includes two stacked pads and two bowl-shaped springs disposed between the pads, with the openings of the two bowl-shaped springs positioned far apart.

[0006] In one specific embodiment, the bottom of the bowl-shaped spring is provided with a through hole.

[0007] In one specific embodiment, the mating surface between the damping plate and the movable part is provided with a spherical groove.

[0008] In one specific embodiment, the spherical groove is provided with oil-absorbing holes.

[0009] In one specific embodiment, the edge of the spherical groove is provided with a closed protrusion, which forms a first oil storage groove between the protrusion and the surface of the spherical groove.

[0010] In one specific embodiment, the damping adjustment assembly further includes a damping sleeve disposed on the wall of the receiving cavity, the hardness of which is lower than that of the base.

[0011] In one specific embodiment, the damping sleeve is provided with a receiving cavity and a first opening and a second opening respectively communicating with the second receiving cavity, wherein the diameter of the first opening is not greater than the diameter of the spherical movable part, allowing the connecting part at one end of the connector to pass through, and the second opening is larger than the damping sheet, so that part of the spherical movable part is exposed and in contact with the damping sheet.

[0012] In one specific embodiment, the damping sleeve includes an oil-impregnated damping sleeve.

[0013] In one specific embodiment, the oil-impregnated damping sleeve is provided with a plurality of microholes or microgrooves for storing lubricating grease.

[0014] In one specific embodiment, the first opening and the second opening are respectively provided with closed protrusions.

[0015] In one specific embodiment, the inner wall of the damping sleeve is provided with a plurality of oil guide grooves that ensure uniform grease distribution between the spherical movable part and the second receiving cavity.

[0016] In one specific embodiment, the connector has an embedded adjusting nut, and the spherical movable part has a groove.

[0017] In one specific embodiment, an adjusting nut is provided in the fixing through hole of the fixing cover, and the adjusting nut is threadedly connected to the damping adjusting rod.

[0018] This utility model also provides another damping movable joint mechanism. This damping movable joint mechanism includes a base and a connector. One end of the connector has a movable part that is movably connected to the base. The base has a housing cavity for fixing the movable part and a damping adjustment cavity communicating with the housing cavity, as well as a fixed cover connected to the base. The fixed cover has a fixed through hole communicating with the damping adjustment cavity. A damping adjustment assembly is provided inside the damping adjustment cavity. The damping adjustment assembly includes a damping sleeve, a damping plate, and a damping adjustment rod connected to the fixed through hole, all disposed on the wall of the housing cavity. The hardness of the damping sleeve is lower than the hardness of the base.

[0019] In one specific embodiment, the damping sleeve is provided with a receiving cavity and a first opening and a second opening respectively communicating with the second receiving cavity, wherein the diameter of the first opening is not greater than the diameter of the spherical movable part, allowing the connecting part at one end of the connector to pass through, and the second opening is larger than the damping sheet, so that part of the spherical movable part is exposed and in contact with the damping sheet.

[0020] This utility model also provides a fixing device, which includes a damping movable joint mechanism. The damping movable joint mechanism includes a base and a connector. One end of the connector is provided with a spherical movable part that is movably connected to the base. The base is provided with a storage cavity for fixing the movable part and a damping adjustment cavity communicating with the storage cavity, as well as a fixing cover connected to the base. The fixing cover is provided with a fixing through hole communicating with the damping adjustment cavity. The damping adjustment cavity is provided with a damping adjustment component. The damping adjustment component includes a damping plate with a hardness less than that of the movable part and a damping adjustment rod connected to the fixing through hole. When adjusting the damping, the damping between the damping plate and the movable part is changed by the damping adjustment rod.

[0021] In one specific embodiment, the damping adjustment assembly further includes two stacked pads and two bowl-shaped springs disposed between the pads, with the openings of the two bowl-shaped springs positioned far apart.

[0022] In one specific embodiment, the bottom of the bowl-shaped spring is provided with a through hole.

[0023] In one specific embodiment, the mating surface between the damping plate and the movable part is provided with a spherical groove.

[0024] In one specific embodiment, the spherical groove is provided with oil-absorbing holes.

[0025] In one specific embodiment, the edge of the spherical groove is provided with a closed protrusion, which forms a first oil storage groove between the protrusion and the surface of the spherical groove.

[0026] In one specific embodiment, the damping adjustment assembly further includes a damping sleeve disposed on the wall of the receiving cavity, the hardness of which is lower than that of the base.

[0027] In one specific embodiment, the damping sleeve is provided with a receiving cavity and a first opening and a second opening respectively communicating with the second receiving cavity, wherein the diameter of the first opening is not greater than the diameter of the spherical movable part, allowing the connecting part at one end of the connector to pass through, and the second opening is larger than the damping sheet, so that part of the spherical movable part is exposed and in contact with the damping sheet.

[0028] In one specific embodiment, the damping sleeve includes an oil-impregnated damping sleeve.

[0029] In one specific embodiment, the oil-impregnated damping sleeve is provided with a plurality of microholes or microgrooves for storing lubricating grease.

[0030] In one specific embodiment, the first opening and the second opening are respectively provided with closed protrusions.

[0031] In one specific embodiment, the inner wall of the damping sleeve is provided with a plurality of oil guide grooves that ensure uniform grease distribution between the spherical movable part and the second receiving cavity.

[0032] In one specific embodiment, the connector has an embedded adjusting nut, and the spherical movable part has a groove.

[0033] In one specific embodiment, an adjusting nut is provided in the fixing through hole of the fixing cover, and the adjusting nut is threadedly connected to the damping adjusting rod.

[0034] This utility model discloses a damping movable joint mechanism and device. The damping movable joint mechanism includes a base and a connector. One end of the connector has a movable part, and the other end connects to a component that needs to be fixed. The base has a housing cavity for fixing the movable part and a damping adjustment cavity communicating with the housing cavity, as well as a fixing cover connected to the base. The fixing cover has a fixing through hole communicating with the damping adjustment cavity. A damping adjustment assembly is provided within the damping adjustment cavity. The damping adjustment assembly includes a damping sleeve and a damping plate disposed on the cavity wall of the housing cavity, and a damping adjustment rod connected to the fixing through hole. The hardness of the damping plate is lower than that of the base and / or the movable part. When adjusting the damping, the damping magnitude between the damping plate and the movable part is changed by adjusting the damping rod. Because the hardness of the damping plate is lower than that of the movable part, it easily deforms within a certain space when compressed, thereby increasing the contact area with the movable part and increasing resistance. Simultaneously, the low hardness of the damping plate avoids rigid hard friction when the movable part adjusts its direction, thus improving its service life. Furthermore, an oil-containing layer can be provided at the contact surface between the damping plate and the spherical movable part, which can also serve as a lubricant, making the adjustment of the high-position movable part smoother. This damping movable joint mechanism can be widely used in products that require position adjustment, such as mobile terminal brackets and car brackets. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the description only show some embodiments of this utility model, and therefore should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of an embodiment of a damped movable joint mechanism.

[0037] Figure 2 This is a schematic diagram of another embodiment of the damping movable joint mechanism.

[0038] Figure 3 This is an exploded view of an embodiment of a damped movable joint mechanism.

[0039] Figure 4This is an exploded view of another embodiment of the damped movable joint mechanism.

[0040] Figure 5 This is an exploded view of the overall structure of an embodiment of the damping movable joint mechanism.

[0041] Figure 6 This is a cross-sectional view of the connector along its length.

[0042] Figure 7 for Figure 6 Enlarged schematic diagram of part A in the middle.

[0043] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The claims of this utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are also within the protection scope of this utility model.

[0045] It should be understood that, in the description of this utility model embodiments, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the utility model product is in use. These terms are only for the purpose of simplifying the description of this utility model and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of this utility model. They are only used to explain the relative positional relationships and movement of the components shown in the accompanying drawings. When this specific posture changes, the directional indication may also change accordingly.

[0046] Furthermore, in this utility model, ordinal numbers such as "first" and "second" are used only for distinguishing purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features referred to as "first" and "second" may explicitly or implicitly indicate at least one of those technical features. In this utility model description, "multiple" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal connection of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0048] If the controllers or control circuits involved in this utility model are conventional control technologies or units for those skilled in the art, such as the controller's control circuit, they can be implemented by those skilled in the art using existing methods, such as simple programming. If the software or program involved in conjunction with the hardware to achieve the control result is not described in detail in the description, it belongs to the use of existing technology or conventional technology for those skilled in the art. The power supply also uses the aforementioned existing technology in the art. Furthermore, since the main utility model's technical point lies in the improvement of the mechanical device, this utility model will not describe the specific circuit control relationships and circuit connections in detail.

[0049] This disclosure provides many different embodiments or examples for implementing different structures of this utility model. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the scope of this utility model. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, this utility model provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0050] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0051] like Figure 1-7 As shown, this utility model provides an embodiment of a damped movable joint mechanism.

[0052] The damping movable joint mechanism includes a base 1 and a connector 2. One end of the connector 2 is provided with a movable part 22, and the other end is provided with a connecting part 21. The movable part 22 is movably connected to the base 1. The base 1 is provided with a first storage cavity 111 for fixing the movable part 22 and a damping adjustment cavity 110 communicating with the first storage cavity 111, as well as a fixed cover 13 connected to the base 1. The fixed cover 13 is provided with a fixed through hole 131, which communicates with the damping adjustment cavity 110. The damping adjustment cavity 110 is provided with a damping adjustment component 4. The damping adjustment component 4 includes a damping plate 43 with a hardness less than that of the movable part and a damping adjustment rod 3 connected to the fixed through hole 131. When adjusting the damping, the damping rod 3 is adjusted to cooperate with the adjusting nut in the fixed through hole 131. By adjusting the extension and retraction of the damping rod 3, the movable damping between the damping plate 43 and the movable part 22 is changed, thereby realizing the damping adjustment.

[0053] Specifically, the movable part 22 adopts a spherical movable part, which can improve the range of motion and ensure that the damping is basically the same in all directions, making the adjustment in all directions smoother. The connecting part 2 can be made of plastic, such as by injection molding. The connecting part 2 is provided with an adjusting nut (not shown in the figure) that connects the outside to the connecting part 21. In order to keep the position of the adjusting nut in the middle of the connecting part 2 when it is embedded, the spherical movable part of the movable part 22 is provided with a groove (not shown in the figure). Through this groove, the adjusting nut can be held in the appropriate position by the mold ejector pin, so as to avoid its low stress strength affecting its use. The adjusting nut is connected to the damping adjusting rod 3 by threads. The mating surface of the damping plate 43 and the spherical movable part is provided with a spherical groove 421, which can increase the contact surface with the spherical movable part. The spherical groove 431 can be provided with an oil suction hole (not shown in the figure). The oil suction hole can reduce the friction between the spherical movable part and the spherical movable part, so that the spherical movable part rotates smoothly and easily after adjustment. The opening edge of the spherical groove 431 is provided with a closed first protrusion 432. The first protrusion 432 and the surface of the spherical groove 431 form a first oil storage groove 433. When the damping plate 43 is subjected to force, the first protrusion 432 expands outward, which can increase the area with the movable part 22 of the sphere, thereby increasing the damping.

[0054] The damping adjustment assembly 4 also includes two stacked pads 42 and two cup-shaped springs 44 disposed between the pads 42. The openings 440 of the two cup-shaped springs 44 are positioned far apart, meaning that the protruding bottoms of the cup-shaped springs 44 are in contact with each other in the protruding direction. The bottom of each cup-shaped spring 44 has a through hole 441 to facilitate the passage of the adjusting damping rod 3, and the position between the two cup-shaped springs 44 does not change during the adjustment process, maintaining the elasticity of the cup-shaped springs 44 within the design range as a linear change.

[0055] In use, the damping adjustment rod 3 is adjusted to change the damping between the two cup-shaped springs 44 in the damping adjustment assembly 4 and the damping between the damping plate 43 and the spherical movable part 22, thereby adjusting the damping magnitude of the connecting piece 2. Because the hardness of the damping plate is less than that of the movable part, it easily deforms within a certain space when compressed, thus increasing the contact area with the movable part and increasing resistance. At the same time, the low hardness of the damping plate avoids rigid friction when the movable part is adjusted, which also improves its service life.

[0056] In this embodiment, the surface of the spherical groove 431 is also provided with a guide groove (not shown in the figure), which can make the grease distribution more uniform when the damping plate 43 and the spherical movable part 22 rotate, thereby improving the smoothness of damping.

[0057] Based on the above embodiments, this utility model also provides another embodiment, with other structures adopting the structures of the above embodiments, which will not be described again. The damping adjustment component 4 further includes a damping sleeve 12 disposed on the cavity wall of the first receiving cavity 111, the hardness of which is lower than that of the base 1. The damping sleeve has a second receiving cavity 120 and a first opening 121 and a second opening 122 respectively communicating with the second receiving cavity 120. The diameter of the first opening 121 is not greater than the diameter of the spherical movable part 22, allowing the connecting part 21 at one end of the connector 2 to pass through. The second opening 122 is larger than the damping plate 43, so that the spherical movable part 22 is partially exposed and in contact with the damping plate 43. The damping sleeve 12 includes an oil-impregnated damping sleeve. The oil-impregnated damping sleeve has a plurality of micropores or microgrooves (not shown in the figure) for storing lubricating grease. The second opening 122 is larger than the diameter of the spherical movable part 22. During installation, the outer surface of the damping sleeve 12 is fitted and fixed to the inner wall of the first receiving cavity 111, which can be fixed by two injection molding processes. The inner wall of the damping sleeve 12 is provided with multiple oil guide grooves (not shown in the attached figure), which can make the grease evenly distributed between the spherical movable part 22 and the second receiving cavity 120. As needed, the first opening 121 and the second opening 122 are respectively provided with closed second protrusions (not shown in the attached figure). The function of the second protrusions is basically the same as that of the first protrusions 432, and will not be described in detail.

[0058] In use, by adjusting the damping adjustment rod 3, the damping between the two cup-shaped springs 44 in the damping adjustment assembly 4 and the damping between the damping plate 43 and the spherical movable part 22 are adjusted, thereby achieving the adjustment of the damping size of the connecting piece 2. Since the hardness of the damping plate is less than that of the movable part and the hardness of the damping sleeve is less than that of the base, the damping sleeve increases the contact area with the spherical movable part 22 under force, thus increasing the damping between them. Simultaneously, the interaction between the damping plate and the cup-shaped springs 44 achieves a better damping adjustment range, avoids rigid friction when the movable part adjusts its direction, improves service life, and increases the smoothness of joint movement.

[0059] In this embodiment, the damping sleeve 12 is implemented in conjunction with the above embodiments, or the damping sleeve 12 can be implemented separately as needed.

[0060] like Figures 1-7 As shown, this utility model also provides an embodiment of a fixing device.

[0061] The fixing device includes a damping movable joint mechanism, which adopts the structure of the above embodiment. Specifically, the damping movable joint mechanism includes a base 1 and a connector 2. One end of the connector 2 has a movable part 22, and the other end has a connecting part 21. The movable part 22 is movably connected to the base 1. The base 1 has a first receiving cavity 111 for fixing the movable part 22 and a damping adjustment cavity 110 communicating with the first receiving cavity 111, as well as a fixing cover 13 connected to the base 1. The fixing cover 13 has a fixing through hole 131 communicating with the damping adjustment cavity 110. The damping adjustment cavity 110 contains a damping adjustment assembly 4. The damping adjustment assembly 4 includes a damping plate 43 with a hardness less than that of the movable part and a damping adjustment rod 3 connected to the fixing through hole 131. When adjusting the damping, the damping rod 3 engages with the adjusting nut in the fixing through hole 131. By adjusting the extension and retraction of the damping rod 3, the damping between the damping plate 43 and the movable part 22 is changed, thereby achieving damping adjustment.

[0062] Specifically, the movable part 22 adopts a spherical movable part, which can improve the range of motion and ensure that the damping is basically the same in all directions, making the adjustment in all directions smoother. The connecting part 2 can be made of plastic, such as by injection molding. The connecting part 2 is provided with an adjusting nut (not shown in the figure) that connects the outside to the connecting part 21. In order to keep the position of the adjusting nut in the middle of the connecting part 2 when it is embedded, the spherical movable part of the movable part 22 is provided with a groove (not shown in the figure). Through this groove, the adjusting nut can be held in the appropriate position by the mold ejector pin, so as to avoid its low stress strength affecting its use. The adjusting nut is connected to the damping adjusting rod 3 by threads. The mating surface of the damping plate 43 and the spherical movable part is provided with a spherical groove 421, which can increase the contact surface with the spherical movable part. The spherical groove 431 can be provided with an oil suction hole (not shown in the figure). The oil suction hole can reduce the friction between the spherical movable part and the spherical movable part, so that the spherical movable part rotates smoothly and easily after adjustment. The opening edge of the spherical groove 431 is provided with a closed first protrusion 432. The first protrusion 432 and the surface of the spherical groove 431 form a first oil storage groove 433. When the damping plate 43 is subjected to force, the first protrusion 432 expands outward, which can increase the area with the movable part 22 of the sphere, thereby increasing the damping.

[0063] The damping adjustment assembly 4 also includes two stacked pads 42 and two cup-shaped springs 44 disposed between the pads 42. The openings 440 of the two cup-shaped springs 44 are positioned far apart, meaning that the protruding bottoms of the cup-shaped springs 44 are in contact with each other in the protruding direction. The bottom of each cup-shaped spring 44 has a through hole 441 to facilitate the passage of the adjusting damping rod 3, and the position between the two cup-shaped springs 44 does not change during the adjustment process, maintaining the elasticity of the cup-shaped springs 44 within the design range as a linear change.

[0064] In use, the damping adjustment rod 3 is adjusted to change the damping between the two cup-shaped springs 44 in the damping adjustment assembly 4 and the damping between the damping plate 43 and the spherical movable part 22, thereby adjusting the damping magnitude of the connecting piece 2. Because the hardness of the damping plate is less than that of the movable part, it easily deforms within a certain space when compressed, thus increasing the contact area with the movable part and increasing resistance. At the same time, the low hardness of the damping plate avoids rigid friction when the movable part is adjusted, which also improves its service life.

[0065] In this embodiment, the surface of the spherical groove 431 is also provided with a guide groove (not shown in the figure), which can make the grease distribution more uniform when the damping plate 43 and the spherical movable part 22 rotate, thereby improving the smoothness of damping.

[0066] Based on the above embodiments, this utility model also provides another embodiment, with other structures adopting the structures of the above embodiments, which will not be described again. The damping adjustment component 4 further includes a damping sleeve 12 disposed on the cavity wall of the first receiving cavity 111, the hardness of which is lower than that of the base 1. The damping sleeve has a second receiving cavity 120 and a first opening 121 and a second opening 122 respectively communicating with the second receiving cavity 120. The diameter of the first opening 121 is not greater than the diameter of the spherical movable part 22, allowing the connecting part 21 at one end of the connector 2 to pass through. The second opening 122 is larger than the damping plate 43, so that the spherical movable part 22 is partially exposed and in contact with the damping plate 43. The damping sleeve 12 includes an oil-impregnated damping sleeve. The oil-impregnated damping sleeve has a plurality of micropores or microgrooves (not shown in the figure) for storing lubricating grease. The second opening 122 is larger than the diameter of the spherical movable part 22. During installation, the outer surface of the damping sleeve 12 is fitted and fixed to the inner wall of the first receiving cavity 111, which can be fixed by two injection molding processes. The inner wall of the damping sleeve 12 is provided with multiple oil guide grooves (not shown in the attached figure), which can make the grease evenly distributed between the spherical movable part 22 and the second receiving cavity 120. As needed, the first opening 121 and the second opening 122 are respectively provided with closed second protrusions (not shown in the attached figure). The function of the second protrusions is basically the same as that of the first protrusions 432, and will not be described in detail.

[0067] In use, by adjusting the damping adjustment rod 3, the damping between the two cup-shaped springs 44 in the damping adjustment assembly 4 and the damping between the damping plate 43 and the spherical movable part 22 are adjusted, thereby achieving the adjustment of the damping size of the connecting piece 2. Since the hardness of the damping plate is less than that of the movable part and the hardness of the damping sleeve is less than that of the base, the damping sleeve increases the contact area with the spherical movable part 22 under force, thus increasing the damping between them. Simultaneously, the interaction between the damping plate and the cup-shaped springs 44 achieves a better damping adjustment range, avoids rigid friction when the movable part adjusts its direction, improves service life, and increases the smoothness of joint movement.

[0068] In this embodiment, the damping sleeve 12 is implemented in conjunction with the above embodiments, or the damping sleeve 12 can be implemented independently as needed. This damping movable joint mechanism can be widely used in products that require position adjustment, such as mobile terminal brackets and car brackets.

[0069] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A damping movable joint mechanism comprising a base and a connecting member, the connecting member having a spherical movable portion at one end which is movably connected to the base, characterized in that, The base has a storage cavity for the fixed movable part and a damping adjustment cavity communicating with the storage cavity, as well as a fixed cover connected to the base. The fixed cover has a fixed through hole communicating with the damping adjustment cavity. The damping adjustment cavity has a damping adjustment assembly, which includes a damping plate with a hardness less than that of the movable part and a damping adjustment rod connected to the fixed through hole. When adjusting the damping, the damping between the damping plate and the movable part is changed by the damping adjustment rod.

2. The damped living hinge mechanism of claim 1, wherein, The damping adjustment assembly also includes two stacked pads and two bowl-shaped springs disposed between the pads, with the openings of the two bowl-shaped springs positioned far apart.

3. The damped living hinge mechanism of claim 2, wherein, The bottom of the bowl-shaped spring is provided with a through hole.

4. The damped living hinge mechanism of claim 1, wherein, The damping plate has a spherical groove on the mating surface with the moving part, and the spherical groove has an oil suction hole.

5. The damped living hinge mechanism of claim 4, wherein, The edge of the spherical groove is provided with a closed protrusion, which forms a first oil storage groove between the protrusion and the surface of the spherical groove.

6. The damped living hinge mechanism of claim 4, wherein, The damping adjustment assembly also includes a damping sleeve disposed on the wall of the receiving cavity. The hardness of the damping sleeve is lower than that of the base. The damping sleeve has a receiving cavity and a first opening and a second opening that are respectively connected to the second receiving cavity. The diameter of the first opening is not greater than the diameter of the spherical movable part, allowing the connecting part at one end of the connector to pass through. The second opening is larger than the damping plate, so that part of the spherical movable part is exposed and in contact with the damping plate.

7. The damped living hinge mechanism of claim 6, wherein, The damping sleeve includes an oil-impregnated damping sleeve, which has a plurality of microholes or microgrooves for storing lubricating grease.

8. The damped movable joint mechanism according to claim 6, characterized in that, The first opening and the second opening are respectively provided with closed protrusions, and the inner wall of the damping sleeve is provided with a plurality of oil guide grooves to ensure uniform grease distribution between the spherical movable part and the second receiving cavity.

9. The damped living hinge mechanism of claim 1, wherein, An adjusting nut is provided in the fixing through hole of the fixing cover, and the adjusting nut is threadedly connected to the damping adjusting rod.

10. A fixation device comprising a damped living hinge mechanism, characterized in that The damping movable joint mechanism has the damping movable joint mechanism as described in any one of claims 1-9.

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