WO2017219630A1 - 可限位阻尼枢转机构及具有它的台灯 - Google Patents

可限位阻尼枢转机构及具有它的台灯 Download PDF

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Publication number
WO2017219630A1
WO2017219630A1 PCT/CN2016/110408 CN2016110408W WO2017219630A1 WO 2017219630 A1 WO2017219630 A1 WO 2017219630A1 CN 2016110408 W CN2016110408 W CN 2016110408W WO 2017219630 A1 WO2017219630 A1 WO 2017219630A1
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WO
WIPO (PCT)
Prior art keywords
section
pivoting
positioning
threaded
limitable
Prior art date
Application number
PCT/CN2016/110408
Other languages
English (en)
French (fr)
Inventor
何伟
李凌斌
Original Assignee
广东百事泰电子商务股份有限公司
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Publication of WO2017219630A1 publication Critical patent/WO2017219630A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F16C11/103—Arrangements for locking frictionally clamped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs

Definitions

  • the invention relates to a pivoting mechanism, in particular to a limitable damping pivoting mechanism and a table lamp having the same.
  • the foldable or rotating electronic product generally includes a first body, a second body, and a pivoting mechanism connected between the first body and the second body. After the first body and the second body are connected by a pivoting mechanism, Achieve turning or folding.
  • the pivoting mechanism in the prior art generally adopts the frictional force between the structural members as the rotational torque, and has a simple structure and a small volume.
  • the damping is small, and after rotating to a certain angle, it cannot be stabilized. This position is prone to problems such as shaking.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, it is an object of the present invention to provide a limitable damping pivoting mechanism.
  • Another object of the present invention is to provide a table lamp having the limitable damper pivoting mechanism.
  • a limitable damper pivoting mechanism for pivotally connecting a first member and a second member of an electronic device includes:
  • the fixing member being adapted to be fixed to the first member
  • the shaft has a positioning section and a threaded section, the positioning section is fixedly connected to the fixing member at an end away from the threaded section, and a positioning member is disposed at an end of the threaded section away from the positioning section;
  • pivoting member is adapted to be fixed to the second member, and the pivoting member is threaded to the threaded section;
  • the elastic member is sleeved on the threaded portion and located between the pivoting member and the positioning member, and the pivoting member rotates on the threaded portion when the pivoting member rotates And pressing the elastic member in the axial direction to elastically compress the elastic member.
  • the elastic member is sleeved on the threaded portion of the shaft and located between the pivoting member and the positioning member.
  • the pivoting member rotates, the pivoting member rotates on the threaded portion and The elastic member is pressed in the axial direction so that the elastic member is elastically compressed, so that the elastic force provided by the elastic member can increase the frictional force received during the rotation of the pivoting member, thereby improving the damping effect, and applying the limitable damping pivoting
  • the folding or turning of the electronic equipment of the mechanism is more reliable, and there is no problem such as shaking.
  • limitable damping pivoting mechanism may further have the following additional technical features:
  • the method further includes:
  • the first wear plate is sleeved on the thread segment and located between the pivot member and the elastic member;
  • the second wear plate is sleeved on the threaded segment and located between the elastic member and the positioning member.
  • the threaded section has a non-circular cross section
  • the first wear plate has a first fitting hole that cooperates with a cross-sectional shape of the threaded section, the first wear resistant The sheet is fitted over the threaded section by the first assembly hole;
  • the second wear plate has a second fitting hole that cooperates with a cross-sectional shape of the threaded section, and the second wear piece is interposed over the threaded section by the second fitting hole.
  • the method further includes:
  • the limiting member is fixed to the positioning portion, and the limiting member has a notch, and the pivoting member is axially convexly formed with a protrusion extending into the notch, when The projection slides within the gap as the pivot member rotates between the first position and the second position.
  • the positioning segment has a limiting portion having a non-circular cross section
  • the limiting member has a limiting hole that cooperates with a cross-sectional shape of the limiting portion, the limit The bit member is disposed on the limiting portion through the limiting hole.
  • the positioning member is a nut threadedly fitted to an end of the threaded section away from the positioning section.
  • the pivoting member comprises:
  • the rotating sleeve has a threaded hole that is threadedly engaged with the threaded portion, and a side of the rotating sleeve adjacent to the elastic member is formed with a receiving cavity, and the elastic member is received in the receiving cavity;
  • the side cover is provided with a through hole through which the threaded section passes, and the side cover is fastened to the rotating sleeve and is located on a side of the rotating sleeve away from the elastic member.
  • the rotating sleeve protrudes toward a side away from the elastic member to form a card frame having a non-circular cross section, and the side cover is formed with the card table. a card slot that allows the side cover to rotate synchronously with the rotating sleeve.
  • the desk lamp provided by the embodiment of the present invention includes:
  • the desk lamp provided by the present invention has the above-mentioned limitable damping pivoting mechanism.
  • the elastic member is sleeved on the threaded section of the shaft and located between the pivoting member and the positioning member. When the pivoting member rotates, the pivoting member is threaded. The segment rotates and compresses the elastic member in the axial direction, so that the elastic member is elastically compressed.
  • the elastic force provided by the spring can increase the frictional force of the pivoting member during the rotation process, thereby improving the damping effect, and the base and support of the lamp
  • the rotation between the arms is more reliable, and can be stably maintained at a certain angle without causing problems such as shaking.
  • the first member has two opposite hinges, and one of the two hinge portions has a third fitting hole having a non-circular cross section, and the cross section of the fixing member is The third assembly hole is adapted and the interference fit is disposed in the third assembly hole;
  • the second member has a rotating portion, and the rotating portion has a fourth fitting hole having a non-circular cross section, and the cross section of the pivoting member is adapted to the fourth fitting hole and is disposed in an interference fit In the fourth assembly hole;
  • the rotating portion has a positioning hole coaxially disposed with the fourth fitting hole and having a circular cross section, and the other of the two hinge portions is provided with a positioning post, the positioning post is pivotally disposed Position the hole.
  • FIG. 1 is an exploded view of a limitable damper pivoting mechanism according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the overall structure of a limitable damping pivoting mechanism according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a pivoting member in a limitable damping pivoting mechanism according to an embodiment of the present invention
  • FIG. 4 is an exploded view showing the structure of a first member, a second member, and a limitable damper pivoting mechanism in a table lamp according to an embodiment of the present invention
  • FIG. 5 is a schematic view showing the overall structure of a first member, a second member, and a limitable damper pivoting mechanism in a table lamp according to an embodiment of the present invention.
  • Second member 201 Second member 201
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • installation shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise.
  • , or connected integrally may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • an embodiment of the present invention provides a limitable damping pivoting mechanism 100 for pivotally connecting a first member 200 of an electronic device with a second member 201, such as a desk lamp.
  • the electronic product bracket, the notebook computer, etc., for the desk lamp, the limit position damping pivot mechanism 100 can be used to connect the lamp holder and the support arm to form a relative rotation relationship, thereby rotating the support arm to adjust the support arm.
  • the angle of the lighting unit can also be used to connect the support arm to the lighting unit to form a relative rotational relationship, thereby causing the lighting unit to rotate to adjust the angle.
  • the limitable damping pivot mechanism 100 can be used to connect the support rod with the electronic product clamping head to form a rotating relationship, thereby achieving angle adjustment.
  • the limitable damping pivot mechanism 100 can be used to connect the display portion with the main body portion to form a closable structure, thereby achieving the effect of opening and closing the display screen.
  • the limitable damping pivot mechanism 100 includes a fixing member 10, a shaft 11, a pivoting member 12, and an elastic member 13.
  • the fixing member 10 is adapted to be fixed to the first member 200. That is to say, the fixing member 10 is adapted to be fixed to a part of the electronic device, such as a lamp holder of a desk lamp. It should be noted that the structure of the fixing member 10 is selected according to the configuration of the first member 200 in the electronic device. For different electronic devices, the fixing member 10 of different shapes and configurations may be adopted as long as the fixing member 10 is adapted to be fixed at the first The member 200 can be used.
  • the shaft 11 has a positioning section 111 and a threaded section 112.
  • One end of the positioning section 111 away from the threaded section 112 is fixedly connected to the fixing member 10, and a position of the threaded section 112 away from the positioning section 111 is provided with a positioning.
  • Item 14 That is, one end of the shaft 11 is provided with a fixing member 10, and the fixing member 10 is relatively fixed with the shaft 11 and can rotate synchronously with the shaft 11. The other end of the shaft 11 is provided with a positioning member 14.
  • the pivoting member 12 is adapted to be secured to the second member 201 and the pivoting member 12 is threadedly engaged with the threaded section 112. That is to say, that is to say, the pivoting member 12 is adapted to be fixed to another part of the electronic device, such as the support arm of the desk lamp. It should be noted that the structure of the pivoting member 12 is selected according to the configuration of the first member 200 in the electronic device. For different electronic devices, the pivoting member 12 of different shapes and configurations may be adopted as long as the pivoting member 12 is adapted to be fixed. It is sufficient on the second member 201. At the same time, the pivoting member 12 is sleeved on the shaft 11 and threadedly engaged with the threaded section 112. When the pivoting member 12 is rotated, the pivoting member 12 can be axially moved by a certain distance on the shaft 11.
  • the elastic member 13 is sleeved on the threaded segment 112 and located between the pivoting member 12 and the positioning member 14 When the pivoting member 12 rotates, the pivoting member 12 rotates on the threaded section 112 and axially urges the elastic member 13 to elastically compress the elastic member 13.
  • the elastic member 13 is in a compressed state between the pivoting member 12 and the positioning member 14 for providing axial pressure acting on the pivoting member 12 so that the pivoting member 12 and the threaded portion 112 and the elastic portion Frictional torque is generated between the pieces 13.
  • the pivoting member 12 is rotated (for example, clockwise)
  • the pivoting member 12 is moved a certain distance in the axial direction of the shaft 11 toward the elastic member 13, and at this time, the elastic member 13 is further compressed, and the elastic member 13 is compressed.
  • the larger the amount the greater the pressure provided by the elastic member 13 to the pivoting member 12, and the greater the frictional torque between the pivoting member 12 and the threaded section 112 and the elastic member 13.
  • the elastic member 13 can adopt a disc spring or a compression spring or the like, can be directly sleeved on the shaft 11, and can provide a large elastic force, thereby increasing the friction torque.
  • a pivotable or folded electronic device can be formed.
  • the first member 200 of the electronic device is fixedly coupled to the fixing member 10 of the limitable damping pivot mechanism 100, the second member 201 of the electronic device and the pivoting member of the limitable damping pivot mechanism 100 12 After the fixed connection, a pivotable or folded electronic device can be formed.
  • the user applies a force to the first member 200 or the second member 201, due to the large friction between the pivoting member 12 and the shaft 11, between the pivoting member 12 and the elastic member 13, This friction acts as a resistance when the user needs to rotate the first member 200 or the second member 201, so the force applied by the user must be greater than the frictional force to push the first member 200 and the second member 201 to rotate relative to each other.
  • the pivoting member 12 is rotated by an angle on the shaft 11, and if the pivoting member 12 is rotated in one of a clockwise direction and a counterclockwise direction, and Moving toward the elastic member 13 further compresses the elastic member 13 to provide a greater pressure acting on the pivoting member 12, thereby increasing the frictional force, and thus, the frictional force can be gradually increased.
  • the trend is such that the first member 200 and the second member 201 are rotated to the maximum angular position, and at the maximum angular position, the friction is maximized to ensure that the first member 200 and the second member 201 can be reliably stopped at the minimum when opened. Any position between the angled position and the maximum angle position without sloshing.
  • the pivoting member 12 If the pivoting member 12 is rotated in the other direction of clockwise and counterclockwise, and is moved away from the elastic member 13, the amount of compression of the elastic member 13 is gradually reduced, and the pressure acting on the pivoting member 12 is also provided.
  • the friction is reduced, so that the frictional force is small, and thus, the tendency of the frictional force to gradually decrease can be utilized, so that the friction between the first member 200 and the second member 201 from the maximum angle position to the minimum angle position Relatively small, and thus more effortless, and at the same time, due to the rotation of the first member 200 and the second member 201 from the maximum angle position to the minimum angle position, there is still a certain friction force, thereby ensuring the first member.
  • the 200 and the second member 201 are again incapable of causing problems such as rapid rotation causing damage to the first member 200 and the second member 201.
  • the elastic member 13 is sleeved on the threaded section 112 of the shaft 11 and located between the pivoting member 12 and the positioning member 14, and pivots when the pivoting member 12 rotates.
  • the piece 12 rotates on the threaded section 112 and presses the elastic member 13 in the axial direction to elastically compress the elastic member 13, so that the elastic force provided by the spring can increase the frictional force of the pivoting member 12 during the rotation process, thereby improving Damping, the folding or rotating of the electronic device using the limitable damping pivot mechanism 100 is more reliable, and no sloshing or the like occurs.
  • a first wear plate 15 and a second wear plate 16 are further included.
  • the first wear plate 15 is sleeved on the thread segment 112 and located at the pivot.
  • the second wear plate 16 is sleeved between the elastic member 13 and the positioning member 14 between the rotating member 12 and the elastic member 13 .
  • a wear-resistant piece is respectively disposed between the pivoting member 12 and the elastic member 13 and between the elastic member 13 and the positioning member 14.
  • the first wear-resistant piece 15 can be increased.
  • the friction between the large pivoting member 12 and the elastic member 13 and the friction between the positioning member 14 and the elastic member 13 can be increased by the second wear-resistant member 16.
  • the first wear plate 15 and the second wear plate 16 can protect the elastic member 13 from the problem that the elastic member 13 directly contacts the pivot member 12 and the positioning member 14 to improve the wear and the like. Its service life and reliability and robustness of use.
  • the threaded section 112 is non-circular in cross section
  • the first wear plate 15 has a first fitting hole 151 that cooperates with the cross-sectional shape of the threaded section 112,
  • the first wear plate 15 is interposed over the threaded section 112 through the first fitting hole 151.
  • the second wear plate 16 has a second fitting hole 161 that cooperates with the cross-sectional shape of the thread segment 112, and the second wear plate 16 is interposed over the thread segment through the second fitting hole 161 112 on.
  • first wear plate 15 and the second wear plate 16 and the threaded section 112 of the shaft 11 are engaged by non-circular holes, so that the first wear piece 15 and the second wear piece can be made 16 is relatively fixed to the shaft 11, and when the shaft 11 is rotated, the first wear piece 15 and the second wear piece 16 are relatively rotated.
  • the structure is simple and the assembly is convenient.
  • a limiting member 17 is further included.
  • the limiting member 17 is fixed to the positioning portion 111 , and the limiting member 17 has a notch 171 .
  • a protrusion extending into the notch 171 is formed in the axial direction of the pivoting member 12, and when the pivoting member 12 is rotated between the first position and the second position, the protrusion is in the The gap 171 slides inside.
  • the protrusion can slide in the notch 171 on the limiting member 17, the size of the notch 171 determines the stroke of the protrusion sliding, and the protrusion is fixed to the pivoting member 12, so the protrusion is in the gap
  • the stroke of the sliding within 171 defines a range of angles at which the pivoting member 12 rotates on the shaft 11, the maximum angular position being the first position and the minimum angular position being the second position.
  • the rotation angle of the pivoting member 12 is defined by the cooperation between the limiting member 17 and the pivoting member 12, and the structure is simple and firm, and can satisfy the electronic device that needs to rotate a certain angular range.
  • the structure of the limiting member 17 is not limited thereto, and other structural forms can be used to cooperate with the pivoting member 12, for example, by adopting a sliding groove structure instead of the notch 171, and the protruding portion can slide in the sliding groove.
  • a protrusion may be provided on the limiting member 17, and a notch 171 or a chute may be provided on the pivoting member 12, which will not be enumerated here.
  • the positioning section 111 has a limiting portion 1111 having a non-circular cross section, and the limiting member 17 has a cross-sectional shape with the limiting portion 1111.
  • the limiting hole 172 is fitted to the limiting portion 1111 through the limiting hole 172.
  • the limiting member 17 and the positioning portion 111 of the shaft 11 are fixed by the non-circular hole cooperation.
  • the limiting member 17 can rotate synchronously with the shaft 11 and has a simple structure and assembly. Convenient, relatively fixed and more reliable.
  • the positioning member 14 is a nut that is threadedly engaged with one end of the threaded section 112 away from the positioning section 111. That is to say, in the present embodiment, a nut is used as the positioning member 14, and the nut can be rotated on the threaded section 112 of the shaft 11, so that the position of the nut on the threaded section 112 can be adjusted by the rotating nut, thereby adjusting the elastic member 13. The amount of compression.
  • the elastic member 13 provides a function of pivoting.
  • the pressure of the piece 12 is greater, which in turn increases the friction torque.
  • the distance between the pivoting member 12 and the nut is increased, so that the amount of compression of the elastic member 13 is reduced, and thus the elastic member 13 is provided to act on the pivoting member 12.
  • the pressure is reduced, which in turn reduces the friction torque. Therefore, the user can adjust the friction torque by turning the nut as needed.
  • the nut can be rotated by a tool such as a wrench so that the nut is adjacent to the elastic member 13. The direction is moved.
  • the nut can be rotated by a tool such as a wrench to move the nut in a direction away from the elastic member 13, which is more flexible and convenient to use.
  • the loosening problem can also be solved by rotating the nut to move the nut in the direction of approaching the elastic member 13.
  • the pivoting member 12 includes a rotating sleeve 121 and a side cover 122.
  • the rotating sleeve 121 has a threaded hole 1211 which is threadedly engaged with the threaded portion 112, and a receiving cavity 1212 is formed on a side of the rotating sleeve 121 adjacent to the elastic member 13.
  • the elastic member 13 is received in the receiving cavity 1212. .
  • the elastic member 13 and the first wear plate 15 and the second wear plate 16 are both located in the receiving cavity 1212.
  • the side cover 122 is provided with a through hole through which the threaded portion 112 passes, and the side cover 122 is fastened to the rotating sleeve 121 and located on a side of the rotating sleeve 121 away from the elastic member 13. Correspondingly, a protrusion may be formed on the side cover 122.
  • the rotating sleeve 121 is threadedly engaged with the threaded section 112 of the shaft 11 to be rotatable on the threaded section 112, while the side cover 122 is fixed to one side of the rotating sleeve 121 and can be rotated differently with the rotating sleeve 121.
  • the split rotating sleeve 121 and the side cover 122 are used as the pivoting member 12, which can facilitate the production and processing of the pivoting member 12, and also facilitate the formation of the protrusion.
  • the side cover 122 and the rotating sleeve 121 are clamped. In a manner, the structure in which the side cover 122 and the rotating sleeve 121 are fixed can be simplified.
  • the rotating sleeve 121 protrudes toward a side away from the elastic member 13 to form a non-circular cross section.
  • the card table 1213 is formed with a card slot that is engaged with the card table 1213 such that the side cover 122 and the rotating sleeve 121 can rotate synchronously.
  • the rotating sleeve 121 and the side cover 122 can be engaged to realize synchronous rotation, and the structure is simple, and the fixing is firm and reliable.
  • an embodiment of the present invention provides a desk lamp, including a base, a support arm, and a limitable damper pivoting mechanism 100 according to the above embodiment.
  • the base is fixed to the first component. 200.
  • the support arm is connected to the second member 201.
  • the relative rotation between the support arm and the base can be achieved by rotating the first member 200 and the second member 201 by the limitable damping pivot mechanism 100.
  • the first member 200 has two opposite hinges 2001, 2002, one of the two hinges 2001 having a third mounting hole having a non-circular cross section, the fixing member 10
  • the cross section is adapted to the third fitting hole and the interference fit fits within the third fitting hole.
  • the second member 201 has a rotating portion 2011 having a fourth fitting hole 2012 having a non-circular cross section, the cross section of the pivoting member 12 being adapted to the fourth fitting hole 2012 and An interference fit fits within the fourth assembly hole 2012.
  • the rotating portion 2011 has a positioning hole 2003 disposed coaxially with the fourth mounting hole 2012 and having a circular cross section, and the other of the two hinge portions 2002 is provided with a positioning post 2013, and the positioning post 2013 is pivotable The rotation is set in the positioning hole 2003.
  • the first member 200 and the second member 201 can achieve more stable and reliable rotation, thereby ensuring that the rotation of the base and the support arm after being fixed with the first member 200 and the second member 201 respectively is more stable and reliable.
  • a table lamp according to the present invention has the above-described limitable damping pivoting mechanism 100.
  • the elastic member 13 is sleeved on the threaded section 112 of the shaft 11 and located between the pivoting member 12 and the positioning member 14, when the pivoting member 12 rotates.
  • the elastic member 13 is elastically compressed, so that the elastic force provided by the spring can increase the friction of the pivoting member 12 during the rotation process. Force, which in turn increases the damping effect, the base and support of the lamp
  • the rotation between the arms is more reliable, and can be stably maintained at a certain angle without causing problems such as shaking.

Abstract

一种可限位阻尼枢转机构（100），该阻尼枢转机构（100）包括固定件（10）、轴杆（11）、枢转件（12）及弹性件（13），所述固定件（10）固设至第一构件（200）；所述轴杆（11）具有定位段（111）及螺纹段（112）；所述枢转件（12）固设至第二构件（201），所述枢转件（12）螺纹配合于所述螺纹段（112）；所述弹性件（13）套设于所述螺纹段（112），当所述枢转件（12）旋转时，所述枢转件（12）在所述螺纹段（112）上转动并沿轴向压迫所述弹性件（13），以使所述弹性件（13）被弹性压缩。该机构可增大所述枢转件（12）转动过程所受到的摩擦力，进而提高阻尼作用，使应用该阻尼枢转机构的电子设备更加可靠，不会发生晃动等问题。

Description

可限位阻尼枢转机构及具有它的台灯 技术领域
本发明涉及枢转机构，特别涉及一种可限位阻尼枢转机构及具有它的台灯。
背景技术
随着科技不断进步，更复杂且更人性化的电子产品更推陈出新。例如为了便于携带，便于调节角度，相关技术中，众多电子产品采用可折叠或转动方式。这些可折叠或转动的电子产品一般包括第一机体、第二机体及连接于第一机体和第二机体之间的枢转机构，第一机体与第二机体通过枢转机构连接后，即可实现转动或折叠。
然而，现有技术中的枢转机构，一般采用结构件之间的摩擦力作为旋转扭矩，其结构简单，体积小，但是，同时，存在其阻尼小，转动至某一角度之后，不能稳固于该位置，容易产生晃动等问题。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明的一个目的在于提出一种可限位阻尼枢转机构。
本发明的另一个目的在于提出一种具有该可限位阻尼枢转机构的台灯。
为实现上述目的，一方面，根据本发明实施例的可限位阻尼枢转机构，用于将电子设备的第一构件与第二构件枢转连接，包括：
固定件，所述固定件适于固设至所述第一构件；
轴杆，所述轴杆具有定位段及螺纹段，所述定位段远离所述螺纹段的一端与所述固定件固定连接，所述螺纹段远离所述定位段的一端设有一定位件；
枢转件，所述枢转件适于固设至所述第二构件，且所述枢转件螺纹配合于所述螺纹段；
弹性件，所述弹性件套设于所述螺纹段且位于所述枢转件和所述定位件之间，当所述枢转件旋转时，所述枢转件在所述螺纹段上转动并沿轴向压迫所述弹性件，以使所述弹性件被弹性压缩。
根据本发明提供的可限位阻尼枢转机构，弹性件套设于轴杆的螺纹段且位于枢转件和定位件之间，当枢转件旋转时，枢转件在螺纹段上转动并沿轴向压迫弹性件，以使弹性件被弹性压缩，如此，利用弹性件提供的弹力可以增大枢转件转动过程所受到的摩擦力，进而提高阻尼作用，应用该可限位阻尼枢转机构的电子设备折叠或转动更加可靠，不会发生晃动等问题。
另外，根据本发明上述实施例可限位阻尼枢转机构还可以具有如下附加的技术特征：
根据本发明的一个实施例，还包括：
第一耐磨片，所述第一耐磨片套设于所述螺纹段且位于所述枢转件和弹性件之间；
第二耐磨片，所述第二耐磨片套设于所述螺纹段且位于所述弹性件和所述定位件之间。
根据本发明的一个实施例，所述螺纹段的横截面为非圆形，所述第一耐磨片具有与所述螺纹段的横截面形状配合的第一装配孔，所述第一耐磨片通过所述第一装配孔过盈套配在所述螺纹段上；
所述第二耐磨片具有与所述螺纹段的横截面形状配合的第二装配孔，所述第二耐磨片通过所述第二装配孔过盈套配在所述螺纹段上。
根据本发明的一个实施例，还包括：
限位件，所述限位件固定于所述定位段，且所述限位件具有一缺口，所述枢转件上沿轴向凸出形成有一延伸至所述缺口中的凸起，当所述枢转件在第一位置和第二位置之间旋转时，所述凸起在所述缺口内滑动。
根据本发明的一个实施例，所述定位段具有一横截面为非圆形的限位部，所述限位件具有与所述限位部的横截面形状配合的限位孔，所述限位件通过所述限位孔过盈套配在所述限位部上。
根据本发明的一个实施例，所述定位件为螺母，所述螺母螺纹配合于所述螺纹段远离所述定位段的一端。
根据本发明的一个实施例，所述枢转件包括：
旋转套，所述旋转套具有与所述螺纹段螺纹配合的螺纹孔，且所述旋转套上临近所述弹性件的侧面形成有一收容腔，所述弹性件收容于所述收容腔；
侧盖，所述侧盖上设有供所述螺纹段穿过的通孔，且所述侧盖卡固于所述旋转套并位于所述旋转套上远离所述弹性件的一侧。
根据本发明的一个实施例，所述旋转套上向远离所述弹性件的一侧凸出形成一横截面为非圆形的卡台，所述侧盖上形成有与所述卡台卡合使得所述侧盖与旋转套可同步旋转的卡槽。
另一方面，本发明实施例提供的台灯，包括：
如上所述可限位阻尼枢转机构；
底座和支撑臂，所述底座固设于所述第一构件，所述支撑臂与所述第二构件相连。
根据本发明提供的台灯，具有上述可限位阻尼枢转机构，弹性件套设于轴杆的螺纹段且位于枢转件和定位件之间，当枢转件旋转时，枢转件在螺纹段上转动并沿轴向压迫弹性件，以使弹性件被弹性压缩，如此，利用弹簧提供的弹力可以增大枢转件转动过程所受到的摩擦力，进而提高阻尼作用，台灯的底座与支撑臂之间转动更加可靠，可以稳定地保持在某一个角度，不会发生晃动等问题。
根据本发明的一个实施例，所述第一构件具有两相对铰接部，两所述铰接部其中之一上具有横截面为非圆形的第三装配孔，所述固定件的横截面与所述第三装配孔相适配且过盈套配于所述第三装配孔内；
所述第二构件具有一转动部，所述转动部具有横截面为非圆形的第四装配孔，所述枢转件的横截面与所述第四装配孔相适配且过盈套配于所述第四装配孔内；
所述转动部具有与所述第四装配孔同轴设置且横截面为圆形的定位孔，两所述铰接部中的另一个上设有一定位柱，所述定位柱可枢转设置所述定位孔内。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1是本发明实施例可限位阻尼枢转机构的爆炸图；
图2是本发明实施例可限位阻尼枢转机构的整体结构示意图；
图3是本发明实施例可限位阻尼枢转机构中枢转件的结构示意图；
图4是本发明实施例台灯中第一构件、第二构件与可限位阻尼枢转机构的结构示意图爆炸图；
图5是本发明实施例台灯中第一构件、第二构件与可限位阻尼枢转机构的整体结构示意图。
附图标记：
可限位阻尼枢转机构100；
固定件10；
轴杆11；
定位段111；限位部1111；
螺纹段112；
枢转件12；
旋转套121；螺纹孔1211；收容腔1212；卡台1213；
侧盖122；
弹性件13；
定位件14；
第一耐磨片15；
第一装配孔151；
第二耐磨片16；
第二装配孔161；
限位件17；
缺口171；
限位孔172；
第一构件200；
铰接部2001、2002；
定位孔2003；
第二构件201；
转动部2011；
第四装配孔2012；
定位柱2013。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
参照图1至图3所示，本发明实施例提供了一种可限位阻尼枢转机构100，用于将电子设备的第一构件200与第二构件201枢转连接，电子设备例如为台灯、电子产品支架、笔记本电脑等等，对于台灯而言，可以利用该可限位阻尼枢转机构100将灯座与支撑臂连接形成可相对转动关系，进而使得支撑臂转动而调节支撑臂上的照明单元的角度；也可以利用该可限位阻尼枢转机构100将支撑臂与照明单元连接形成可相对转动关系，进而使得照明单元转动而调节角度。对于电子产品支架，可以利用该可限位阻尼枢转机构100将支撑杆与电子产品夹持头连接形成转动关系，进而实现角度调节。对笔记本电脑，可以利用该可限位阻尼枢转机构100将显示器部分与主机部分连接形成可开合结构，进而达到打开和关闭显示屏的效果。
该可限位阻尼枢转机构100包括固定件10、轴杆11、枢转件12及弹性件13。
具体的，固定件10适于固设至所述第一构件200。也就是说，该固定件10适合与电子设备的一个部分固定，例如台灯的灯座。需要说明的是，固定件10的结构根据电子设备中第一构件200的构造选择，对于不同的电子设备，则可以采用不同形状和构造的固定件10，只要固定件10适于固定在第一构件200上即可。
轴杆11具有定位段111及螺纹段112，所述定位段111远离所述螺纹段112的一端与所述固定件10固定连接，所述螺纹段112远离所述定位段111的一端设有一定位件14。也即是，轴杆11的一端设置有固定件10，且该固定件10与轴杆11的相对固定的，可以随轴杆11同步转动，轴杆11的另一端设置有定位件14。
枢转件12适于固设至所述第二构件201，且所述枢转件12螺纹配合于所述螺纹段112。也就是说，也就是说，枢转件12适合与电子设备的另一个部分固定，例如台灯的支撑臂。需要说明的是，枢转件12的结构根据电子设备中第一构件200的构造选择，对于不同的电子设备，则可以采用不同形状和构造的枢转件12，只要枢转件12适于固定在第二构件201上即可。同时，枢转件12是套设在轴杆11上的且与螺纹段112螺纹配合，旋转枢转件12时，枢转件12可以在轴杆11上沿轴向移动一定距离。
弹性件13套设于所述螺纹段112且位于所述枢转件12和所述定位件14之间，当所 述枢转件12旋转时，所述枢转件12在所述螺纹段112上转动并沿轴向压迫所述弹性件13，以使所述弹性件13被弹性压缩。
也就是说，弹性件13位于枢转件12和定位件14之间处于被压缩状态，用于提供轴向的作用于枢转件12的压力，以使得枢转件12与螺纹段112及弹性件13之间产生摩擦扭矩。在枢转件12旋转时(例如顺时针)，枢转件12沿轴杆11的轴向向靠近弹性件13的方向移动一定距离，此时，弹性件13被进一步压缩，弹性件13的压缩量越大，则弹性件13提供给枢转件12的压力越大，枢转件12与螺纹段112及弹性件13之间的摩擦扭矩也越大。
可以理解的是，弹性件13可以采用碟形弹簧或压簧等，可以直接套设于轴杆11上，且能够提供较大的弹性作用，进而增大摩擦扭矩。
具有应用中，当电子设备的第一构件200与该可限位阻尼枢转机构100的固定件10固定连接，电子设备的第二构件201与该可限位阻尼枢转机构100的枢转件12固定连接之后即可形成可枢转或折叠的电子设备。使用时，使用者通过施加作用力于第一构件200或第二构件201时，由于枢转件12与轴杆11之间、枢转件12与弹性件13之间具有较大的摩擦力，该摩擦力在使用者需要转动第一构件200或第二构件201时充当阻力，所以，使用者施加的作用力必须大于上述摩擦力才能推动第一构件200和第二构件201相对转动。
同时，在推动第一构件200和第二构件201转动的过程中，枢转件12在轴杆11上转动一定角度，而且，如果枢转件12沿顺时针和逆时针的一个方向转动，且向靠近弹性件13的方向移动，则对弹性件13进一步压缩，提供更大的作用于枢转件12的压力，进而使得上述摩擦力增大，如此，可以利用这种摩擦力逐渐增大的趋势，使得第一构件200和第二构件201转动至最大夹角位置，并在最大夹角位置时，摩擦力最大，以确保第一构件200和第二构件201打开时能够可靠地停止在最小夹角位置和最大夹角位置之间的任意位置，而不会发生晃动等问题。
如果枢转件12沿顺时针和逆时针的另一个方向转动，且向远离弹性件13的方向移动，则对弹性件13压缩量逐渐减小，其提供的作用于枢转件12的压力也减小，进而使得上述摩擦力较小，如此，可以利用这种摩擦力逐渐减小的趋势，使得第一构件200和第二构件201从最大夹角位置转动至最小夹角位置时，摩擦力相对变小，进而更加轻松省力，同时，由于使得第一构件200和第二构件201从最大夹角位置转动至最小夹角位置的过程中，仍然具有一定的摩擦力，进而确保可第一构件200和第二构件201又不会出现快速转动而造成第一构件200和第二构件201损坏等问题。
根据本发明提供的可限位阻尼枢转机构100，弹性件13套设于轴杆11的螺纹段112且位于枢转件12和定位件14之间，当枢转件12旋转时，枢转件12在螺纹段112上转动并沿轴向压迫弹性件13，以使弹性件13被弹性压缩，如此，利用弹簧提供的弹力可以增大枢转件12转动过程所受到的摩擦力，进而提高阻尼作用，应用该可限位阻尼枢转机构100的电子设备折叠或转动更加可靠，不会发生晃动等问题。
参照图1所示，在本发明的一个实施例中，还包括第一耐磨片15及第二耐磨片16，第一耐磨片15套设于所述螺纹段112且位于所述枢转件12和弹性件13之间；第二耐磨片16套设于所述螺纹段112且位于所述弹性件13和所述定位件14之间。
也就是说，本实施例中，在枢转件12与弹性件13之间、弹性件13与定位件14之间分别设置一耐磨片，一方面，通过该第一耐磨片15可以增大枢转件12与弹性件13之间的摩擦力，而通过第二耐磨片16可以增大定位件14与弹性件13的之间的摩擦力。另一方面，通过第一耐磨片15和第二耐磨片16可以对弹性件13起到保护作用，避免弹性件13直接与枢转件12和定位件14接触造成的磨损等问题，提高其使用寿命及使用的可靠性和牢固性。
作为优选地，在本发明的一个示例中，螺纹段112的横截面为非圆形，所述第一耐磨片15具有与所述螺纹段112的横截面形状配合的第一装配孔151，所述第一耐磨片15通过所述第一装配孔151过盈套配在所述螺纹段112上。第二耐磨片16具有与所述螺纹段112的横截面形状配合的第二装配孔161，所述第二耐磨片16通过所述第二装配孔161过盈套配在所述螺纹段112上。
也就是说，第一耐磨片15和第二耐磨片16与轴杆11的螺纹段112是通过非圆形孔配合的，如此，可以使得第一耐磨片15和第二耐磨片16与轴杆11相对固定的，且在轴杆11转动时，第一耐磨片15和第二耐磨片16相对转动。同时，其结构简单，装配方便。
参照图1所示，在本发明的一些实施例中，还包括限位件17，所述限位件17固定于所述定位段111，且所述限位件17具有一缺口171，所述枢转件12上沿轴向凸出形成有一延伸至所述缺口171中的凸起，当所述枢转件12在第一位置和第二位置之间旋转时，所述凸起在所述缺口171内滑动。
也就是说，凸起可以在限位件17的上的缺口171内滑动，缺口171的尺寸决定了凸起滑动的行程，而凸起是与枢转件12固定的，因此，凸起在缺口171内滑动的行程限定了枢转件12在轴杆11上转动的角度范围，最大角度位置为第一位置，最小角度位置为第二位置。
本实施例中，通过限位件17与枢转件12之间的配合实现了对枢转件12转动角度的限定，其结构简单牢固，可以满足于需要转动一定角度范围的电子设备。
可以理解的是，限位件17的结构不限于此，可以采用其他结构形式与枢转件12配合，例如在采用滑槽结构代替缺口171，凸起可以在滑槽内滑动。此外，也可以在限位件17上设置凸起，而在枢转件12上设置缺口171或滑槽，在此不一一列举。
参照图1所示，在本发明的一个实施例中，定位段111具有一横截面为非圆形的限位部1111，所述限位件17具有与所述限位部1111的横截面形状配合的限位孔172，所述限位件17通过所述限位孔172过盈套配在所述限位部1111上。
也就是说，限位件17与轴杆11的定位段111通过非圆形孔配合实现固定的，在轴杆11旋转时，限位件17可随轴杆11同步旋转，其结构简单，装配方便，相对固定更加可靠。
本发明的一个优选实施例中，定位件14为螺母，所述螺母螺纹配合于所述螺纹段112远离所述定位段111的一端。也就是说，本实施例中，采用螺母作为定位件14，螺母能够在轴杆11的螺纹段112上旋转，如此，可以通过旋转螺母调节螺母在螺纹段112上的位置，进而调节弹性件13的压缩量。
具体的，如果旋转螺母使得螺母沿靠近弹性件13的方向移动，枢转件12与螺母之间的距离缩小，进而使得弹性件13被压缩更大，如此，弹性件13提供的作用于枢转件12的压力更大，进而提高了摩擦扭矩。如果旋转螺母使得螺母沿远离弹性件13的方向移动，枢转件12与螺母之间的距离增大，进而使得弹性件13压缩量减小，如此，弹性件13提供的作用于枢转件12的压力减小，进而减小摩擦扭矩。由此，使用者可以根据需要转动螺母调节摩擦扭矩，例如如果需要电子设备的第一构件200与第二构件201转动更紧固，则可以借助扳手等工具旋转螺母使得螺母沿靠近弹性件13的方向移动，例如如果需要电子设备的第一构件200与第二构件201转动更轻松，则可以借助扳手等工具旋转螺母使得螺母沿远离弹性件13的方向移动即可，其使用更加灵活方便。此外，在使用一定时间后，如果因磨损使得第一构件200和第二构件201转动时变得松动了，则也可以通过旋转螺母使得螺母沿靠近弹性件13的方向移动解决松动问题。
参照图3所示，在本发明的一个具体实施例中，枢转件12包括旋转套121及侧盖122。旋转套121具有与所述螺纹段112螺纹配合的螺纹孔1211，且所述旋转套121上临近所述弹性件13的侧面形成有一收容腔1212，所述弹性件13收容于所述收容腔1212。例如图1所示，弹性件13及第一耐磨片15和第二耐磨片16均位于收容腔1212内。
侧盖122上设有供所述螺纹段112穿过的通孔，且所述侧盖122卡固于所述旋转套121并位于所述旋转套121上远离所述弹性件13的一侧。对应的，凸起可以形成于侧盖122上。
也就是说，旋转套121与轴杆11的螺纹段112螺纹配合，可以在螺纹段112上转动，而侧盖122则固定在旋转套121的一侧，可以随旋转套121不同旋转。本实施例，采用分体式旋转套121和侧盖122作为枢转件12，可以方便于枢转件12的生产加工，也便于凸起的形成，同时，侧盖122与旋转套121采用卡固方式，可以简化侧盖122与旋转套121固定的结构。
更为具体的，为实现旋转套121与侧盖122的卡固，在本发明的一个示例中，旋转套121上向远离所述弹性件13的一侧凸出形成一横截面为非圆形的卡台1213，所述侧盖122上形成有与所述卡台1213卡合使得所述侧盖122与旋转套121可同步旋转的卡槽。如此，通过卡台1213与卡槽的卡合即可将旋转套121与侧盖122卡合进而实现可同步旋转，其结构简单，固定牢固可靠。
参照图4至图5所示，本发明实施例提供了一种台灯，包括底座、支撑臂及如上述实施例所述的可限位阻尼枢转机构100，底座固设于所述第一构件200，所述支撑臂与所述第二构件201相连。如此，第一构件200与第二构件201之间通过该可限位阻尼枢转机构100转动即可实现支撑臂与底座之间的相对转动。
在本发明的一个实施例中，第一构件200具有两相对铰接部2001、2002，两所述铰接部其中之一2001上具有横截面为非圆形的第三装配孔，所述固定件10的横截面与所述第三装配孔相适配且过盈套配于所述第三装配孔内。第二构件201具有一转动部2011，所述转动部2011具有横截面为非圆形的第四装配孔2012，所述枢转件12的横截面与所述第四装配孔2012相适配且过盈套配于所述第四装配孔2012内。转动部2011具有与所述第四装配孔2012同轴设置且横截面为圆形的定位孔2003，两所述铰接部中的另一个上2002设有一定位柱2013，所述定位柱2013可枢转设置所述定位孔2003内。
由此，第一构件200和第二构件201可以实现更加稳定可靠的旋转，进而确保底座和支撑臂分别与第一构件200和第二构件201固定后转动更加稳定可靠。
根据本发明提供的台灯，具有上述可限位阻尼枢转机构100，弹性件13套设于轴杆11的螺纹段112且位于枢转件12和定位件14之间，当枢转件12旋转时，枢转件12在螺纹段112上转动并沿轴向压迫弹性件13，以使弹性件13被弹性压缩，如此，利用弹簧提供的弹力可以增大枢转件12转动过程所受到的摩擦力，进而提高阻尼作用，台灯的底座与支 撑臂之间转动更加可靠，可以稳定地保持在某一个角度，不会发生晃动等问题。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在不脱离本发明的原理和宗旨的情况下在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种可限位阻尼枢转机构，用于将电子设备的第一构件与第二构件枢转连接，其特征在于，包括：
    固定件，所述固定件适于固设至所述第一构件；
    轴杆，所述轴杆具有定位段及螺纹段，所述定位段远离所述螺纹段的一端与所述固定件固定连接，所述螺纹段远离所述定位段的一端设有一定位件；
    枢转件，所述枢转件适于固设至所述第二构件，且所述枢转件螺纹配合于所述螺纹段；
    弹性件，所述弹性件套设于所述螺纹段且位于所述枢转件和所述定位件之间可沿所述螺纹段轴向移动，当所述枢转件旋转时，所述枢转件在所述螺纹段上转动并沿轴向压迫所述弹性件，以使所述弹性件被弹性压缩。
  2. 根据权利要求1所述的可限位阻尼枢转机构，其特征在于，还包括：
    第一耐磨片，所述第一耐磨片套设于所述螺纹段且位于所述枢转件和弹性件之间；
    第二耐磨片，所述第二耐磨片套设于所述螺纹段且位于所述弹性件和所述定位件之间。
  3. 根据权利要求2所述的可限位阻尼枢转机构，其特征在于，所述螺纹段的横截面为非圆形，所述第一耐磨片具有与所述螺纹段的横截面形状配合的第一装配孔，所述第一耐磨片通过所述第一装配孔过盈套配在所述螺纹段上；
    所述第二耐磨片具有与所述螺纹段的横截面形状配合的第二装配孔，所述第二耐磨片通过所述第二装配孔过盈套配在所述螺纹段上。
  4. 根据权利要求1所述的可限位阻尼枢转机构，其特征在于，还包括：
    限位件，所述限位件固定于所述定位段，且所述限位件具有一缺口，所述枢转件上沿轴向凸出形成有一延伸至所述缺口中的凸起，当所述枢转件在第一位置和第二位置之间旋转时，所述凸起在所述缺口内滑动。
  5. 根据权利要求4所述的可限位阻尼枢转机构，其特征在于，所述定位段具有一横截面为非圆形的限位部，所述限位件具有与所述限位部的横截面形状配合的限位孔，所述限位件通过所述限位孔过盈套配在所述限位部上。
  6. 根据权利要求1所述的可限位阻尼枢转机构，其特征在于，所述定位件为螺母，所述螺母螺纹配合于所述螺纹段远离所述定位段的一端。
  7. 根据权利要求1所述的可限位阻尼枢转机构，其特征在于，所述枢转件包括：
    旋转套，所述旋转套具有与所述螺纹段螺纹配合的螺纹孔，且所述旋转套上临近所述弹性件的侧面形成有一收容腔，所述弹性件收容于所述收容腔；
    侧盖，所述侧盖上设有供所述螺纹段穿过的通孔，且所述侧盖卡固于所述旋转套并位于所述 旋转套上远离所述弹性件的一侧。
  8. 根据权利要求7所述的可限位阻尼枢转机构，其特征在于，所述旋转套上向远离所述弹性件的一侧凸出形成一横截面为非圆形的卡台，所述侧盖上形成有与所述卡台卡合使得所述侧盖与旋转套可同步旋转的卡槽。
  9. 一种台灯，其特征在，包括：
    如权利要求1至8中任一项所述可限位阻尼枢转机构；
    底座和支撑臂，所述底座固设于所述第一构件，所述支撑臂与所述第二构件相连。
  10. 根据权利要求9所述的台灯，其特征在于，所述第一构件具有两相对铰接部，两所述铰接部其中之一上具有横截面为非圆形的第三装配孔，所述固定件的横截面与所述第三装配孔相适配且过盈套配于所述第三装配孔内；
    所述第二构件具有一转动部，所述转动部具有横截面为非圆形的第四装配孔，所述枢转件的横截面与所述第四装配孔相适配且过盈套配于所述第四装配孔内；
    所述转动部具有与所述第四装配孔同轴设置且横截面为圆形的定位孔，两所述铰接部中的另一个上设有一定位柱，所述定位柱可枢转设置所述定位孔内。
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