Supporting column rotating shaft
By setting the damping shaft and buffer pad in the rotation shaft, combining the limit and sliding parts, the problem of unstable damping force of the wave gasket is solved, and a more stable and long-life damping effect is achieved. It is suitable for the rotation shaft that needs smooth adjustment. application.
Patent Information
- Application Number
- CN202420982762.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The use of corrugated gaskets in existing rotating shafts provides poor stability and short service life, which cannot meet certain requirements for smooth and precise adjustment of microphone direction and angle.
A pillar rotation shaft is designed. By setting a damping shaft between the rotating member and the bracket, and installing a cushion pad and a damping sheet on the damping shaft, the damping sheet is clamped by threaded connections between bolts and nuts, providing stable damping force. , and precise adjustment is achieved through limiting rods and sliding components.
It significantly improves the service life of the damped rotary shaft and provides more stable damping force, suitable for rotary shaft application scenarios that require smooth adjustment, such as mobile phone support and microphone support.
Smart Images
Figure CN222142590U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotating shafts, and in particular to a supporting column rotating shaft. Background Art
[0002] The pillar rotation axis is the core part of the pillar rotation function in a certain structure or mechanical device. Its specific application scenarios involve architecture and construction, vehicle support, photography and photographic equipment, furniture design, industrial machinery and other fields. Damping needs to be added to some of the rotation axes so that the rotation axis can smoothly and accurately adjust the direction and angle of the microphone. These mainly involve the rotation axis of the laptop computer opening and closing cover, the microphone adjustment rotation axis and other places.
[0003] In the prior art, when the damping of a rotating shaft needs to be increased, a corrugated gasket is usually used to provide the damping force. However, the damping force provided by the corrugated gasket has poor stability and a short service life. Utility Model Content
[0004] The utility model provides a support rotating shaft, which solves the problem of unstable damping force provided by a corrugated gasket in the related art.
[0005] The technical solution of the utility model is as follows:
[0006] A support rotating shaft, comprising:
[0007] A bracket, wherein the bracket has a first through hole;
[0008] A rotating member, rotatably disposed at one end of the bracket, wherein two ends of the rotating member respectively have a clamping portion and a second through hole, and an axis of the first through hole is collinear with an axis of the second through hole;
[0009] A damping shaft passes through the first through hole and the second through hole, and the damping shaft is used to provide rotation resistance for the rotating member.
[0010] Optionally, the first through hole is in the shape of a straight groove, and the surface of the damping shaft abutting against the first through hole is also in the shape of a straight groove.
[0011] Optionally, it also includes:
[0012] A buffer pad is arranged on the damping shaft, and the damping shaft abuts against the first through hole and the second through hole through the buffer pad.
[0013] Optionally, the bracket has a limiting groove and further includes:
[0014] A limiting rod is arranged on the rotating member, and the limiting rod is located in the limiting groove. After the rotating member rotates, the limiting rod abuts against one side of the limiting groove.
[0015] Optionally, the damping shaft comprises:
[0016] a bolt, wherein the bolt head of the bolt is disposed in the first through hole, and the screw rod of the bolt passes through the second through hole;
[0017] A damping plate is rotatably disposed on the screw rod of the bolt, and the damping plate abuts against the inner wall of the second through hole;
[0018] A nut is threadedly connected to the bolt, the damping plate is located between the bolt and the nut, and the nut and the bolt are used to clamp the damping plate.
[0019] Optionally, the rotating member comprises:
[0020] A limiting portion, wherein the limiting rod is arranged on the limiting portion;
[0021] The sliding part is slidably arranged on the limiting part, and the sliding part moves away from or close to the limiting rod after sliding. The second through hole is arranged on the sliding part, and the limiting part, the sliding part and the clamping part are connected in sequence.
[0022] Optionally, the second through hole is a long hole, the second through hole has a first end and a second end, the first end is close to the limiting portion, and after the sliding portion slides, the damping sheet abuts against or leaves the first end, and further includes:
[0023] A plurality of first transmission teeth are circumferentially spaced and arranged on the damping plate, wherein the damping plate abuts against the inner wall of the second through hole through the first transmission teeth;
[0024] There are a plurality of second transmission teeth which are arranged at intervals at the first end. When the damping plate approaches the first end, the first transmission teeth mesh with the second transmission teeth for transmission.
[0025] Optionally, it also includes:
[0026] The first elastic member has two ends respectively arranged on the sliding portion and the limiting portion, and the first elastic member is used to provide a force for the sliding portion to move away from the limiting portion.
[0027] Optionally, it also includes:
[0028] There are two caps, which are respectively arranged at two ends of the first through hole.
[0029] Optionally, the contact surface between the cap and the second through hole is in the shape of a straight groove.
[0030] The working principle and beneficial effects of the utility model are:
[0031] In the utility model, the bracket has a first through hole, the rotating member has a clamping portion and a second through hole, the second through hole is colinear with the axis of the first through hole, the damping shaft passes through the first through hole and the second through hole, so that the rotating member and the bracket are hingedly arranged, and the damping shaft can prevent the rotating member from rotating without external force, which is suitable for situations such as mobile phone support and microphone support that require a damped rotating shaft. The clamping portion on the rotating member can clamp the object to be supported. The setting of the damping shaft not only greatly increases the service life of the damping rotating shaft, but also provides a more stable damping force. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.
[0033] Figure 1 It is a schematic diagram of the structure of the utility model;
[0034] Figure 2 It is a top view of the utility model;
[0035] Figure 3 for Figure 2 Middle BB section view;
[0036] Figure 4 for Figure 2 Middle AA section view;
[0037] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.
[0038] In the figure: 100, bracket, 110, first through hole, 200, rotating member, 210, clamping part, 220, second through hole, 300, damping shaft, 400, buffer pad, 120, limiting groove, 500, limiting rod, 310, bolt, 320, damping plate, 330, nut, 230, limiting part, 240, sliding part, 221, first end, 222, second end, 321, first transmission tooth, 223, second transmission tooth, 600, first elastic member, 700, cap. DETAILED DESCRIPTION
[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.
[0040] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0041] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0043] Reference Figure 1~Figure 5 The utility model proposes a pillar rotating shaft, including a bracket 100, the bracket 100 has a first through hole 110; a rotating member 200 is rotatably arranged at one end of the bracket 100, and the two ends of the rotating member 200 respectively have a clamping portion 210 and a second through hole 220, and the axis of the first through hole 110 and the axis of the second through hole 220 are colinear; a damping shaft 300 passes through the first through hole 110 and the second through hole 220, and the damping shaft 300 is used to provide rotation resistance for the rotating member 200.
[0044] In this embodiment, the bracket 100 has a first through hole 110, the rotating member 200 has a clamping portion 210 and a second through hole 220, the second through hole 220 and the first through hole 110 are colinear, the damping shaft 300 passes through the first through hole 110 and the second through hole 220, so that the rotating member 200 and the bracket 100 are hingedly arranged, and the damping shaft 300 can prevent the rotating member 200 from rotating without external force, which is suitable for situations where a damping rotating shaft is required, such as a mobile phone support and a microphone support, and the clamping portion 210 on the rotating member 200 can clamp the object to be supported. By setting the damping shaft 300, not only the service life of the damping rotating shaft is greatly increased, but also the damping force provided by the damping shaft 300 is relatively stable.
[0045] Furthermore, the first through hole 110 is in the shape of a straight groove, and the surface of the damping shaft 300 abutting against the first through hole 110 is also in the shape of a straight groove.
[0046] In this embodiment, the surfaces where the first through hole 110 and the damping shaft 300 abut each other are in the form of mutually matching straight grooves, which not only facilitate positioning of the damping shaft 300, but also facilitate fixing one end of the damping shaft 300 so that the damping shaft 300 cannot rotate relative to the bracket 100.
[0047] Furthermore, a buffer pad 400 is provided on the damping shaft 300 , and the damping shaft 300 abuts against the first through hole 110 and the second through hole 220 through the buffer pad 400 .
[0048] In this embodiment, the damping shaft 300 abuts against the first through hole 110 and the second through hole 220 through the buffer pad 400. The buffer pad 400 can separate the damping shaft 300 from the bracket 100 and the damping shaft 300 from the rotating member 200 to avoid damage to parts due to rigid collision.
[0049] Furthermore, the bracket 100 has a limiting groove 120 and also includes a limiting rod 500, which is arranged on the rotating member 200. The limiting rod 500 is located in the limiting groove 120. After the rotating member 200 rotates, the limiting rod 500 abuts against one side of the limiting groove 120.
[0050] In this embodiment, the limiting groove 120 of the bracket 100 can limit the rotation angle of the rotating member 200, and prevent the rotating member 200 from rotating too much to damage the power line for the object that needs to be powered by the rotating member 200.
[0051] Furthermore, the damping shaft 300 includes a bolt 310, the bolt 310 head of the bolt 310 is arranged in the first through hole 110, and the screw rod of the bolt 310 passes through the second through hole 220; the damping plate 320 is rotatably arranged on the screw rod of the bolt 310, and the damping plate 320 abuts against the inner wall of the second through hole 220; the nut 330 is threadedly connected to the bolt 310, and the damping plate 320 is located between the bolt 310 and the nut 330, and the nut 330 and the bolt 310 are used to clamp the damping plate 320.
[0052] In this embodiment, the nut 330 fastens the damping plate 320 between the nut 330 and the bolt 310 head of the bolt 310 through a thread, so that the rotation of the damping plate 320 has a certain resistance, the damping plate 320 abuts against the second through hole 220, and the damping plate 320 and the second through hole 220 rotate synchronously. When the rotating member 200 rotates, the resistance on the damping plate 320 acts on the rotating member 200.
[0053] Further, the rotating member 200 includes a limiting portion 230, and a limiting rod 500 is arranged on the limiting portion 230; the sliding portion 240 is slidably arranged on the limiting portion 230, and the sliding portion 240 slides away from or close to the limiting rod 500, and the second through hole 220 is arranged on the sliding portion 240, and the limiting portion 230, the sliding portion 240 and the clamping portion 210 are connected in sequence.
[0054] In this embodiment, the rotating member 200 includes a limiting portion 230 and a sliding portion 240 , and the sliding portion 240 can slide relative to the limiting portion.
[0055] Furthermore, the second through hole 220 is a long hole, and the second through hole 220 has a first end 221 and a second end 222. The first end 221 is close to the limiting portion 230. After the sliding portion 240 slides, the damping plate 320 abuts against or leaves the first end 221. It also includes a first transmission tooth 321, which has a plurality of teeth and is circumferentially spaced on the damping plate 320. The damping plate 320 abuts against the inner wall of the second through hole 220 through the first transmission teeth 321; the second transmission teeth 223 have a plurality of teeth and are spaced at intervals at the first end 221. After the damping plate 320 approaches the first end 221, the first transmission teeth 321 engage with the second transmission teeth 223 for transmission.
[0056] In this embodiment, the second through hole 220 is a long hole. After the sliding part 240 slides, the damping plate 320 approaches or moves away from the first end 221. The first transmission tooth 321 on the damping plate 320 can mesh with the second transmission tooth 223. After the first transmission tooth 321 meshes with the second transmission tooth 223, the damping plate 320 and the rotating member 200 rotate synchronously. After the damping plate 320 moves away from the first end 221, the rotating member 200 rotates alone without damping during rotation. Through the sliding of the sliding part 240, when the rotating member 200 needs to rotate, the rotating member 200 can be rotated alone to adjust a large angle, and then the first transmission tooth 321 and the second transmission tooth 223 are in meshing state to accurately adjust the angle of the rotating member 200, reduce the wear of the damping shaft 300, and increase the service life of the damping shaft 300.
[0057] Furthermore, a first elastic member 600 is included, with two ends thereof respectively disposed on the sliding portion 240 and the limiting portion 230 . The first elastic member 600 is used to provide a force for the sliding portion 240 to move away from the limiting portion 230 .
[0058] In this embodiment, the two ends of the first elastic member 600 are respectively connected to the sliding portion 240 and the limiting portion 230. The elastic force of the first elastic member 600 can keep the first transmission tooth 321 and the second transmission tooth 223 in a meshing state at all times. When the rotating member 200 needs to rotate, the sliding portion 240 is pressed, the first elastic member 600 is compressed, the first transmission tooth 321 and the second transmission tooth 223 move away from each other, and the rotating member 200 is not damped during rotation. After the sliding portion 240 is released, under the action of the first elastic member 600, the first transmission tooth 321 and the second transmission tooth 223 are in a meshing state again, thereby damping the force that prevents the rotating member 200 from rotating.
[0059] Furthermore, two caps 700 are included and are respectively disposed at two ends of the first through hole 110 .
[0060] In this embodiment, the caps 700 are buckled at both ends of the first through hole 110 , and the overall appearance is more beautiful.
[0061] Furthermore, the contact surface between the cap 700 and the second through hole 220 is in a straight groove shape.
[0062] In this embodiment, the contact surface between the cap 700 and the second through hole 220 is in the shape of a straight groove, which also facilitates the positioning of the cap 700 .
[0063] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A support rotating shaft, characterized in that: include: A bracket (100), wherein the bracket (100) has a first through hole (110); a rotating member (200) rotatably disposed at one end of the bracket (100), wherein both ends of the rotating member (200) respectively have a clamping portion (210) and a second through hole (220), and an axis of the first through hole (110) and an axis of the second through hole (220) are collinear; A damping shaft (300) passes through the first through hole (110) and the second through hole (220), and the damping shaft (300) is used to provide rotation resistance for the rotating member (200).
2. A support shaft according to claim 1, characterized in that: The first through hole (110) is in the shape of a straight groove, and the surface where the damping shaft (300) abuts against the first through hole (110) is also in the shape of a straight groove.
3. A support shaft according to claim 1, characterized in that: Also includes: The buffer pad (400) is arranged on the damping shaft (300), and the damping shaft (300) abuts against the first through hole (110) and the second through hole (220) through the buffer pad (400).
4. A support shaft according to claim 1, characterized in that: The bracket (100) has a limiting groove (120) and further comprises: A limiting rod (500) is arranged on the rotating member (200), and the limiting rod (500) is located in the limiting groove (120). After the rotating member (200) rotates, the limiting rod (500) abuts against one side of the limiting groove (120).
5. A support shaft according to claim 4, characterized in that: The damping shaft (300) comprises: A bolt (310), wherein the bolt (310) head of the bolt (310) is disposed in the first through hole (110), and the screw rod of the bolt (310) passes through the second through hole (220); A damping plate (320) is rotatably disposed on the screw rod of the bolt (310), the damping plate (320) being in contact with the inner wall of the second through hole (220); A nut (330), the nut (330) being threadedly connected to the bolt (310), the damping sheet (320) being located between the bolt (310) and the nut (330), and the nut (330) and the bolt (310) being used to clamp the damping sheet (320).
6. A support shaft according to claim 5, characterized in that: The rotating member (200) comprises: A limiting portion (230), wherein the limiting rod (500) is arranged on the limiting portion (230); A sliding portion (240) is slidably arranged on the limiting portion (230), and the sliding portion (240) moves away from or close to the limiting rod (500) after sliding. The second through hole (220) is arranged on the sliding portion (240), and the limiting portion (230), the sliding portion (240) and the clamping portion (210) are connected in sequence.
7. A support shaft according to claim 6, wherein the second through hole (220) is a long hole, the second through hole (220) has a first end (221) and a second end (222), the first end (221) is close to the limiting portion (230), and after the sliding portion (240) slides, the damping sheet (320) abuts against or leaves the first end (221), characterized in that: Also includes: A plurality of first transmission teeth (321) are arranged at circumferential intervals on the damping plate (320); the damping plate (320) abuts against the inner wall of the second through hole (220) through the first transmission teeth (321); There are a plurality of second transmission teeth (223) which are arranged at intervals on the first end (221); after the damping plate (320) is close to the first end (221), the first transmission teeth (321) and the second transmission teeth (223) mesh and transmit.
8. The support shaft according to claim 6, characterized in that: Also includes: The first elastic member (600) has two ends respectively arranged on the sliding portion (240) and the limiting portion (230), and the first elastic member (600) is used to provide a force for the sliding portion (240) to move away from the limiting portion (230).
9. The support shaft according to claim 1, characterized in that: Also includes: There are two caps (700), which are respectively arranged at two ends of the first through hole (110).
10. A support shaft according to claim 9, characterized in that: The contact surface between the cap (700) and the second through hole (220) is in the shape of a straight groove.