Large-damping-force wear-resistant rotating support

Abstract

A rotary fixing seat is arranged at the lower end of a support body, a floating rotating piece is arranged in the rotary fixing seat, an elastic rubber ring is arranged on the inner side of the floating rotating piece to serve as longitudinal elastic buffering, and second damping sliding teeth are arranged at the lower end of the floating rotating piece. The first damping sliding teeth are arranged on the rotating base, the first damping sliding teeth and the second damping sliding teeth are matched in a longitudinal rotating type staggered clamping mode, and when the support body is rotated, the second damping sliding teeth are forced to rotate relative to the first damping sliding teeth. The contact area between the floating rotating part and the damping sliding teeth is the largest, so that the maximum damping force is generated when the two damping sliding teeth rotate mutually, in addition, due to the fact that the floating rotating part is provided with a longitudinal upward buffering space, the floating rotating part cannot be completely clamped when rotating, the friction force distributed to a single clamping tooth is very small, and therefore abrasion resistance is achieved, and the floating rotating part can rotate for thousands of times.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating brackets, in particular to a large damping force wear-resistant rotating bracket. Background Art

[0002] Among the damping structures of the damped rotating brackets currently on the market, such as the elastic glass bead and annular tooth matching structure and the convex spring piece and annular tooth matching structure, such structural schemes generally adopt a horizontally arranged elastic damping structure. For such structural schemes, for the first type, the elastic glass bead and annular tooth matching structure has durability, but its resistance is small and cannot achieve a good damping effect. When used as a vehicle-mounted bracket, it is easy to rotate by itself due to the bumps of the car. For the second type of convex spring piece and annular tooth matching structure, its damping force is completely generated by the rotational friction between a single convex point and the annular tooth. If you want to generate a large damping force when the contact area is small, you need to maximize the elastic force of the spring piece body. In this way, the wear rate of the terminal convex point will be aggravated. Finally, it will be completely worn out after less than a few hundred rotations and cannot achieve a wear-resistant effect. Therefore, how to design a rotating bracket structure that can take into account both damping force and wear resistance has become a technical problem that this patent needs to solve. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a large damping force wear-resistant rotating bracket to solve the technical problems mentioned in the background technology.

[0004] In order to solve the technical problem, the utility model adopts the following technical solution:

[0005] A large damping force wear-resistant rotating bracket comprises a bracket body, a rotating base, a rotating fixed base, a floating rotating member, a fixed shaft assembly and an elastic rubber ring. The lower end of the bracket body is fixedly connected to the rotating fixed base. The rotating base is provided with a first damping sliding tooth. The inner side of the rotating fixed base is formed with a limiting cavity for limiting the elastic rubber ring and the floating rotating member. A second damping sliding tooth is provided on the floating rotating member at a position relative to the first damping sliding tooth. The fixed shaft assembly rotatably assembles the rotating base, the rotating fixed base and the bracket body in sequence. When the bracket body is rotated, the second damping sliding tooth on the floating rotating member performs a damping rotation action relative to the first damping sliding tooth and can squeeze the floating rotating member under the action of the elastic rubber ring, thereby realizing a large damping rotation of the rotating bracket.

[0006] A further improvement is that the first damping sliding teeth and the second damping sliding teeth are both distributed in an annular array and are mutually staggered.

[0007] A further improvement is that the fixed shaft assembly includes a damping shaft, a fixing screw, and a top fixing piece, a damping shaft is provided on the rotating base, a shaft hole is provided on the inner side of the damping shaft, a first through hole is provided on the inner side of the floating rotating member, a second through hole is provided on the inner side of the rotating fixed seat, and a third through hole is provided on the inner side of the bracket body, wherein the shaft hole, the first through hole, the second through hole, and the third through hole are all coaxially arranged, and the top fixing piece is provided with a shaft locking column which can pass through the third through hole, the second through hole, the first through hole and the shaft hole in sequence and be fixed and locked with the fixing screw.

[0008] A further improvement is that a rubber-coated metal sheet is provided on the inner side of the bracket body, a fourth through hole is provided on the rubber-coated metal sheet, a fixed lock column is provided on the top fixing piece, and a fixed lock hole for the fixed lock column to pass through is provided on the bracket body, the rubber-coated metal sheet and the rotating fixed seat, and the rotating fixed seat can be fixed below the bracket body by bolts passed upward from the bottom of the rotating fixed frame.

[0009] A further improvement is that a limiting rotation groove is provided on one side of the second through hole on the rotating fixed seat, a limiting rotation ear is provided at the position of the floating rotating member corresponding to the limiting rotation groove, and an annular limiting groove is provided on the floating rotating member for the elastic rubber ring to be embedded and installed.

[0010] A further improvement is that the fixed shaft assembly also includes a rotating fixed shaft, and the rotating fixed shaft includes a rotating shaft portion and a retention portion, wherein the rotating shaft portion is located at the upper end of the retention portion, and the diameter of the rotating shaft portion is smaller than the diameter of the retention portion, and the inner side of the rotating fixed shaft is provided with a fixed shaft hole for the rotating shaft lock column to pass through, and the upper end of the rotating shaft portion is provided with a polygonal clamping head, and a polygonal clamping groove is provided on the rubber-coated metal sheet at a position corresponding to the polygonal clamping head.

[0011] A further improvement is that the side of the rotating base is provided with symmetrically distributed deformation zones, and the deformation zones are composed of a plurality of wave-shaped grooved deformation slots.

[0012] A further improvement is that a yield step is provided on one side of the damping shaft, and an upper embedding groove and a lower embedding groove are respectively provided on the upper and lower ends of the bracket body, wherein the upper embedding groove is used for the top fixing device to be embedded in position, and the lower embedding groove is used for the rotating fixing seat to be embedded in position when being fixed, and an inner embedding groove is also provided on the lower end surface of the bracket body at a position corresponding to the floating rotating member, wherein the limiting cavity is composed of an annular limiting groove, a yield step, and an inner embedding groove.

[0013] A further improvement is that a fixed mounting piece is provided at the lower end of the rotating base, and the fixed mounting piece is one of a suction cup or a rubber sticker.

[0014] A further improvement is that a bracket functional area is provided at the other end of the bracket body, and the bracket functional area is used to install a combination of one or more of a ball head connector, a mobile phone bracket, a wireless charging bracket, and a sports camera bracket.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model is provided with a rotating fixed seat at the lower end of the bracket body, a floating rotating member is provided in the rotating fixed seat, an elastic rubber ring is provided on the inner side of the floating rotating member as a longitudinal elastic buffer, and a rotating base is provided. The rotating base is rotatably installed and fixed with the bracket body and the rotating fixed seat through a fixed shaft assembly, a second damping sliding tooth is provided at the lower end of the floating rotating member, and a first damping sliding tooth is provided on the rotating base. The first damping sliding tooth and the second damping sliding tooth adopt longitudinal rotating staggered positioning cooperation. In this way, when the bracket body is rotated, the second damping sliding tooth is forced to rotate relative to the first damping sliding tooth. Since the two groups of sliding teeth are composed of a plurality of annular arrays of latching teeth, the contact area between the two sides is the largest. In this way, the two damping sliding teeth generate the largest damping force when rotating with each other. In addition, since the floating rotating member has a longitudinal upward buffering space, it will not be completely stuck when it rotates, and the friction force allocated to a single latching tooth is very small, so that wear resistance is achieved and it is not a problem to rotate thousands of times. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : Assemble the overall structure of the utility model patent Figure 1 ;

[0018] Figure 2 : Assemble the overall structure of the utility model patent Figure 2 ;

[0019] Figure 3 :Decomposition of the overall structure of this utility model patent Figure 1 ;

[0020] Figure 4 :Decomposition of the overall structure of this utility model patent Figure 2 ;

[0021] Figure 5 : It is a radially dissected cross-sectional view of the overall structure of the utility model patent;

[0022] Figure 6 : This is a schematic diagram of the modular angle installation of the bracket body, rotating base and rotating fixed base of the utility model patent;

[0023] In the figure: the bracket body 1, the rotating base 2, the rotating fixed seat 3, the floating rotating part 4, the fixed shaft assembly 5, the elastic rubber ring 6, the first damping sliding tooth 201, the second damping sliding tooth 401, the limiting cavity 31, the damping rotating shaft 51, the fixing screw 52, ​​the top fixing piece 53, the rotating shaft hole 511, the first through hole 41, the second through hole 33, the third through hole 11, the rotating shaft locking column 531, the rubber-coated metal sheet 7, the fourth through hole 71, the fixing locking column 532, the fixing locking hole 101, the limiting rotating groove 32, the limiting rotating ear 42, the annular limiting groove 43, the rotating fixed shaft 8, the rotating shaft part 81, the retention part 82, the fixed shaft hole 801, the polygonal clamping head 811, the polygonal clamping groove 711, the deformation area 21, the giving step 512, the upper embedded groove 102, the lower embedded groove 103, the embedded groove 104, the fixed mounting part 9, the bracket functional area 110, and the fixed area 120. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] refer to Figures 1 to 6 :

[0026] The utility model patent discloses a large damping force wear-resistant rotating bracket, including a bracket body 1 and a rotating base 2. The bracket body 1 has a supporting property and is preferably made of plastic material. One end of the bracket is a fixed area 120 and the other end is a bracket functional area 110. The fixed area 120 is used to be fixed on a part such as a car center console, a desktop, etc. The bracket functional area 110 is used to install components such as a ball head connector, a mobile phone holder, a wireless charging holder, and a sports camera holder. Here, the core structural area of ​​the rotating bracket is located at the fixed end. Specifically, the rotating bracket also includes a rotating fixed seat 3, a floating rotating member 4, a fixed shaft assembly 5 and an elastic rubber ring 6. The lower end of the bracket body 1 is fixedly connected to the rotating fixed seat 3. The rotating base 2 is provided with a first damping sliding tooth 201. The inner side of the rotating fixed seat 3 is formed with a limiting cavity 31 for limiting the elastic rubber ring 6 and the floating rotating member 4. The floating rotating member 4 is provided with a second damping sliding tooth 401 at a position relative to the first damping sliding tooth 201. The fixed shaft assembly 5 sequentially rotatably installs the rotating base 2, the rotating fixed seat 3 and the bracket body 1. Preferably, the first damping sliding teeth 201 and the second damping sliding teeth 401 are both distributed in an annular array and are staggered with each other. Since the two sets of sliding teeth are composed of a plurality of annular array teeth, the contact area between the two sides is the largest. As shown in the figure, when the bracket body 1 is rotated, the second damping sliding teeth 401 on the floating rotating member 4 performs a damping rotation action relative to the first damping sliding teeth 201 and can squeeze the floating rotating member 4 under the action of the elastic rubber ring 6, so that the floating rotating member 4 can generate an up and down floating buffer during the damping rotation cooperation. Since the contact surface between the two annular damping sliding teeth increases during the rotation and squeezing, the damping friction force thereof also increases accordingly. In addition, the elastic downward squeezing of the upper elastic rubber ring 6 realizes the rotation with a large damping force. Compared with the traditional single spring damping solution, the present patent provides staggered rotational contact between multiple sliding teeth, thereby realizing a wear-resistant structural solution.

[0027] As mentioned above, in some cases, the elastic rubber ring 6 can be replaced by a spring. In this case, the supporting surface of the floating rotating member 4 needs to be modified.

[0028] Specifically, the fixed shaft assembly 5 includes a damping shaft 51, a fixing screw 52, ​​and a top fixing piece 53. The rotating base 2 is provided with a damping shaft 51, and the inner side of the damping shaft 51 is provided with a shaft hole 511. The inner side of the floating rotating member 4 is provided with a first through hole 41, the inner side of the rotating fixed seat 3 is provided with a second through hole 33, and the inner side of the bracket body 1 is provided with a third through hole 11, wherein the shaft hole 511, the first through hole 41, the second through hole 33, and the third through hole 11 are all coaxially arranged, and the top fixing piece 53 is provided with a screw thread that can sequentially pass through the third through hole 11, the second through hole 33, the first through hole 41, and the shaft hole 511. 11 and the shaft lock column 531 fixed and locked with the fixing screw 52. Preferably, the top fixing piece 53 can be used as a part of the decorative piece to decorate the top and fix the rotating fixed seat 3 downward. As mentioned above, the fixing screw 52 fixes the bracket body 1 and the rotating fixed seat 3 from bottom to top, but the damping shaft 51 outside the fixing screw 52 is sleeved in the first through hole 41 and the second through hole 33. Relatively speaking, the rotating fixed seat 3 and the floating fixed seat rotate with the outer end surface of the damping shaft 51 as the real shaft. The above-mentioned top fixing piece 53 can be a separate screw with a screw hole, or it can be a column with a screw hole under a decorative piece.

[0029] Specifically, in order to make the bracket body 1 have the property of metal flexibility, a rubber-coated metal sheet 7 is provided on the inner side of the bracket body 1. Preferably, the rubber-coated metal sheet 7 is made of aluminum sheet, and can also be made of copper, iron sheet, etc. Specifically, a fourth through hole 71 is provided on the rubber-coated metal sheet 7, and a fixed locking column 532 is provided on the top fixing piece 53. The bracket body 1, the rubber-coated metal sheet 7 and the rotating fixing seat 3 are all provided with a fixed locking hole 101 for the fixed locking column 532 to pass through. The rotating fixing seat 3 can be fixed below the bracket body 1 by bolts passing upward from the bottom of the rotating fixing frame.

[0030] Specifically, in order to prevent the floating rotating member 4 from performing horizontal rotation on the rotating fixed seat 3, a limiting rotation groove 32 is provided on one side of the second through hole 33, and a limiting rotation ear 42 is provided at the position of the floating rotating member 4 corresponding to the limiting rotation groove 32. The floating rotating member 4 is provided with an annular limiting groove 43 for the elastic rubber ring 6 to be embedded and installed. With this arrangement, the floating rotating member 4 can only perform longitudinal buffering action, but cannot perform horizontal rotation action.

[0031] Specifically, in order to further reinforce the bracket body 1 at the upper end, the rotating fixed seat 3 and the rotating base 2 at the lower end so that they will not loosen during damping rotation, here, the fixed shaft assembly 5 also includes a rotating fixed shaft 8, and the rotating fixed shaft 8 includes a rotating shaft portion 81 and a retention portion 82, wherein the rotating shaft portion 81 is located at the upper end of the retention portion 82, and the diameter of the rotating shaft portion 81 is smaller than the diameter of the retention portion 82, and the inner side of the rotating fixed shaft 8 is provided with a fixed shaft hole 801 through which the rotating shaft lock column 531 can pass, and the upper end of the rotating shaft portion 81 is provided with a polygonal clamp 811 A polygonal groove 711 is provided on the rubber-coated metal sheet 7 at a position corresponding to the polygonal clamping head 811. With this arrangement, the shaft portion 81 of the rotating fixed shaft 8 passes upward through the damping shaft 51, the rotating fixed seat 3, and the floating rotating member 4 to reach the polygonal groove 711 on the upper end of the rubber-coated metal sheet 7 to form a limit, and the shaft lock column 531 is downwardly transmitted into the fixed shaft hole 801 in the rotating fixed shaft 8. Finally, the fixing screw 52 is fixedly installed with the shaft lock column 531 in the fixed shaft hole 801. Preferably, the polygonal clamping head 811 is hexagonal or pentagonal.

[0032] Specifically, when installed as a daily car center console, it usually has a curvature. At this time, if a straight rotating base 2 is used, it cannot be adapted for installation. Here, symmetrically distributed deformation zones 21 are provided on the side of the rotating base 2. The deformation zone 21 is composed of a number of wavy grooved deformation slots. By setting the deformation zone 21, which is generally set on both sides of the rotating base 2, the curvature of the target installation area can be adjusted.

[0033] Specifically, a yield step 512 is provided on one side of the damping shaft 51, and an upper embedding groove 102 and a lower embedding groove 103 are respectively provided on the upper and lower ends of the bracket body 1, wherein the upper embedding groove 102 is used for fixing and embedding the top fixing piece 53, and the lower embedding groove is used for embedding when the rotating fixing seat 3 is fixed, and an inner embedding groove 104 is also provided on the lower end surface of the bracket body 1 corresponding to the position of the floating rotating piece 4, wherein the limiting cavity 31 is jointly surrounded by an annular limiting groove 43, a yield step 512, and an inner embedding groove 104. Considering that the width of the elastic rubber ring 6 will increase when it is squeezed, a laterally wider limiting cavity 31 is provided here to provide the elastic rubber ring 6 with more extrusion space, thereby increasing durability.

[0034] Specifically, a fixed mounting member 9 is provided at the lower end of the rotating base 2, and the fixed mounting member 9 is a suction cup or a glue stick.

[0035] Specifically, a support functional area 110 is provided at the other end of the support body 1, and the support functional area 110 is used to install a combination of one or more of a ball head connector, a mobile phone holder, a wireless charging holder, and a sports camera holder.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A large damping force wear-resistant rotating bracket, comprising a bracket body and a rotating base, characterized in that: The rotatable fixed seat is fixedly connected to the lower end of the bracket body with a rotatable fixed seat, a first damping sliding tooth is arranged on the rotatable fixed seat, a limiting cavity for limiting the elastic rubber ring and the floating rotatable member is formed on the inner side of the rotatable fixed seat, a second damping sliding tooth is arranged on the floating rotatable member at a position relative to the first damping sliding tooth, and the fixed shaft assembly rotatably assembles the rotatable fixed seat and the bracket body in sequence. When the bracket body is rotated, the second damping sliding tooth on the floating rotatable member performs a damping rotation action relative to the first damping sliding tooth and can squeeze the floating rotatable member under the action of the elastic rubber ring, thereby realizing a large damping rotation of the rotatable bracket.

2. A large damping force wear-resistant rotating bracket as claimed in claim 1, characterized in that: The first damping sliding teeth and the second damping sliding teeth are both distributed in an annular array and are mutually staggered.

3. A large damping force wear-resistant rotating bracket as claimed in claim 2, characterized in that: The fixed shaft assembly includes a damping shaft, a fixing screw, and a top fixing piece. The rotating base is provided with a damping shaft, the inner side of the damping shaft is provided with a shaft hole, the inner side of the floating rotating member is provided with a first through hole, the inner side of the rotating fixed seat is provided with a second through hole, and the inner side of the bracket body is provided with a third through hole, wherein the shaft hole, the first through hole, the second through hole, and the third through hole are all coaxially arranged, and the top fixing piece is provided with a shaft locking column that can pass through the third through hole, the second through hole, the first through hole and the shaft hole in sequence and be fixed and locked with the fixing screw.

4. A large damping force wear-resistant rotating bracket as claimed in claim 3, characterized in that: A rubber-coated metal sheet is provided on the inner side of the bracket body, a fourth through hole is provided on the rubber-coated metal sheet, a fixed lock column is provided on the top fixing piece, and a fixed lock hole for the fixed lock column to pass through is provided on the bracket body, the rubber-coated metal sheet and the rotating fixed seat, and the rotating fixed seat can be fixed below the bracket body by bolts passed upward from the bottom of the rotating fixed frame.

5. A large damping force wear-resistant rotating bracket as claimed in claim 4, characterized in that: A limiting rotation groove is provided on one side of the second through hole on the rotating fixed seat, a limiting rotation ear is provided at a position of the floating rotating member corresponding to the limiting rotation groove, and an annular limiting groove is provided on the floating rotating member for the elastic rubber ring to be embedded and installed.

6. A large damping force wear-resistant rotating bracket as claimed in claim 5, characterized in that: The fixed shaft assembly also includes a rotating fixed shaft, which includes a rotating shaft portion and a retention portion, wherein the rotating shaft portion is located at the upper end of the retention portion, and the diameter of the rotating shaft portion is smaller than the diameter of the retention portion, and the inner side of the rotating fixed shaft is provided with a fixed shaft hole for the rotating shaft lock column to pass through, and the upper end of the rotating shaft portion is provided with a polygonal clamping head, and a polygonal clamping groove is provided on the rubber-coated metal sheet at a position corresponding to the polygonal clamping head.

7. A large damping force wear-resistant rotating bracket according to any one of claims 1 to 6, characterized in that: The side of the rotating base is provided with symmetrically distributed deformation zones, and the deformation zones are composed of a plurality of wave-shaped deformation slots.

8. A large damping force wear-resistant rotating bracket as claimed in any one of claims 3 to 6, characterized in that: A yield step is provided on one side of the damping shaft, and an upper embedding groove and a lower embedding groove are respectively provided on the upper and lower ends of the bracket body, wherein the upper embedding groove is used for the top fixing device to be embedded in position, and the lower embedding groove is used for the rotating fixing seat to be embedded in position when being fixed. An inner embedding groove is also provided on the lower end surface of the bracket body at a position corresponding to the floating rotating member, wherein the limiting cavity is composed of an annular limiting groove, a yield step, and an inner embedding groove.

9. A large damping force wear-resistant rotating bracket according to any one of claims 1 to 6, characterized in that: A fixed mounting piece is provided at the lower end of the rotating base, and the fixed mounting piece is one of a suction cup or a glue stick.

10. A large damping force wear-resistant rotating bracket according to any one of claims 1 to 6, characterized in that: The other end of the bracket body is provided with a bracket functional area, and the bracket functional area is used to install a combination of one or more of a ball head connector, a mobile phone bracket, a wireless charging bracket, and a sports camera bracket.

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