CN210197068U

CN210197068U - Annular rotating device

Info

Publication number: CN210197068U
Application number: CN201921147365.1U
Authority: CN
Inventors: Jun Xu; 许军
Original assignee: Kunshan Jia Wei Tai Transmission Technology Co Ltd
Current assignee: Kunshan Jia Wei Tai Transmission Technology Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-03-27
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses an annular rotating device, which comprises a fixed frame, rotatory ring body, it is first, second lamp arm connecting piece and rotatory torque force subassembly, the mount includes fixed ring body and flange ring, rotatory torque force subassembly includes the axle center, on, lower friction disc, the support column, a plurality of dish type shell fragments and lock nut, through setting up the arc slide rail on rotatory ring body, utilize the arc slide rail to lead to the axle center, fix the axle center on fixed ring body again, the relative rotation function between rotatory ring body and the fixed ring body has been realized, through lock nut with a plurality of dish type shell fragments, the friction disc locks on the top surface of rotatory ring body, make on, lower friction disc and rotatory ring body frictional contact, the rotatory torque force between rotatory ring body and the fixed ring body is provided. The utility model discloses have annular space structure, can support annular lamps and lanterns, and rotatory moment of torsion can be adjusted in real time, has compromise the user and has felt when guaranteeing the reliability.

Description

Annular rotating device

Technical Field

The utility model relates to a rotating device, specifically relate to an annular rotating device that is used for needs relative pivoted products such as desk lamp support.

Background

The desk lamp is a lighting appliance commonly used in daily life and is mainly placed on a desk and an office table. The desk lamp generally comprises a base, a support and a lamp holder, one end of the support is installed on the base, the other end of the support is connected with the lamp holder, the lamp holder can be suspended at a position required on a desktop through designing the supports in different styles, however, the light irradiation range of the desk lamp is relatively small and concentrated, and only a small area can be illuminated. For this purpose, the desk lamp needs to have a rotating joint, so that the support usually includes an upper support and a lower support, the lower support is installed on the base, the upper support is installed on the lamp head, and the upper support and the lower support are connected through a rotating device to realize the rotating function of the upper support relative to the lower support, so as to adjust the height of the lamp head. At present, the structure of the rotating device mainly comprises a fixed frame, a rotating bearing frame, an axis, an active friction plate, a passive friction plate, a plurality of elastic sheets and a locking nut, wherein the axis is fixed in a holding space in the middle of the fixed frame, the passive friction plate and the elastic sheets are circumferentially stopped and sleeved on the axis, the rotating bearing frame and the active friction plate are circumferentially rotated and sleeved on the axis, the locking nut locks the elastic sheets, the rotating bearing frame, the active friction plate and the passive friction plate on the axis, and the active friction plate and the passive friction plate are in frictional contact, and the active friction plate is fixedly connected on the rotary bearing frame, so that when the rotary bearing frame rotates relative to the axis and the fixed frame, the driving friction plate can be driven to rotate relative to the driven friction plate to generate rotating torque, and the rotating device with the structure generates torque by means of friction between the driving friction plate and the driven friction plate, so that the effects of reliability and hand feeling cannot be considered. In addition, with the diversification development of the desk lamps, some desk lamp designs want to add the function of an auxiliary lamp, such as a ring lamp. This presents a significant challenge to existing turning devices.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an annular rotating device has annular space structure, can support annular lamps and lanterns, and rotatory moment of torsion can be adjusted in real time, has compromise the user and has felt when guaranteeing the reliability.

The technical scheme of the utility model is realized like this:

an annular rotating device comprises a fixed frame, a rotating ring body, a first lamp arm connecting piece, a second lamp arm connecting piece and at least one group of rotating torque force components, wherein the fixed frame comprises a fixed ring body and a flange ring extending from an inner ring of the fixed ring body, an annular step is formed on the outer side of the top of the flange ring, each rotating torque force component comprises an axis, an upper friction plate, a lower friction plate, a support column, a plurality of disc-shaped elastic sheets and a locking nut, and arc-shaped sliding rails which correspond to the axis one by one are formed on the rotating ring body; the rotating ring body is sleeved outside the top end of the flange ring and supported on the annular step, the bottom end of the axis is mounted on the fixed ring body, the top end of the axis penetrates out of the corresponding arc-shaped slide rail, and the axis can slide along the arc-shaped slide rail; the lower friction plate and the support column are sequentially sleeved on the shaft center and positioned between the rotating ring body and the fixed ring body, so that the rotating ring body is away from the fixed ring body by a set distance, the plurality of disc-shaped elastic sheets and the upper friction plate are sleeved on the shaft center and positioned on the top surface of the rotating ring body, the locking nut is in threaded connection with the top end of the shaft center, the plurality of disc-shaped elastic sheets and the upper friction plate are locked on the top surface of the rotating ring body, the lower friction plate is in frictional contact with the bottom surface of the rotating ring body, and the upper friction plate is in frictional contact with the top surface of the rotating ring body; the first lamp arm connecting piece is installed on the rotating ring body, and the second lamp arm connecting piece is installed on the fixed ring body.

Furthermore, two sets of the rotating torque assemblies are arranged, two arc-shaped sliding rails which are in one-to-one correspondence with two axes of the two sets of the rotating torque assemblies are formed on the rotating ring body, and the two arc-shaped sliding rails are symmetrically arranged on the rotating ring body.

Furthermore, the rotating torque assembly further comprises a constant force spring and a fixed column, the top end of the fixed column is installed on the rotating ring body, the constant force spring is fixedly sleeved outside the supporting column, and the outer end of the constant force spring is fixedly connected to the fixed column.

Further, still include the equilibrium post, the flange ring outside is formed with the extension post, the extension post is located the fixed column with between the support column, the extension post front end is formed with the arc wall, the bottom rigid coupling of equilibrium post in on the fixed ring body, the top of equilibrium post support in the bottom of rotating ring body, just the equilibrium post inboard is arranged in the arc wall, the outside butt of equilibrium post in the inboard of constant force spring.

The lamp holder further comprises an outer cover, the outer cover comprises an upper cover shell, a lower cover shell and a middle shell, the middle shell is in a cylindrical shape with two open ends, annular clamping grooves are formed in the two ends of the middle shell, the middle cover shell is sleeved in the flange ring, the upper cover shell is connected with the annular clamping grooves in the top of the middle shell in a buckling mode, the lower cover shell is connected with the annular clamping grooves in the bottom of the middle shell in a buckling mode, the upper cover shell is in butt joint with the lower cover shell to form an accommodating cavity which surrounds the fixing frame, the rotating ring and the rotating torque component, a first sleeve which avoids the first lamp arm connecting piece is formed on the upper cover shell, and a second sleeve which avoids the second lamp arm connecting piece is formed on the lower cover shell.

The utility model has the advantages that: the utility model provides an annular rotating device, through set up the arc slide rail on rotatory ring body, utilize the arc slide rail to lead to the axle center, fix the axle center on the fixed ring body again, the relative rotation function between rotatory ring body and the fixed ring body has been realized, through lock nut with a plurality of dish type shell fragments, the friction disc is locked on the top surface of rotatory ring body, and will descend friction disc and support column location between rotatory ring body and fixed ring body, the bottom surface frictional contact of friction disc and rotatory ring body under the messenger, go up the top surface frictional contact of friction disc and rotatory ring body, the rotatory torsion between rotatory ring body and the fixed ring body is provided. Therefore, the annular rotating device is formed, an annular space structure can be provided, the shape of the annular rotating device is matched with that of the annular lamp, the annular rotating device can be used for supporting the annular lamp, and therefore the function of an auxiliary lamp can be added on the support of the desk lamp. The preferred, rotatory torque force subassembly still includes constant force spring and fixed column, provides auxiliary torque through increasing the constant force spring, can neutralize the gravity moment that comes from the upper bracket of installation on the first lamp arm connecting piece and lamp holder, and the moment of torsion can be adjusted in real time as required, has compromise the user and has felt when guaranteeing the reliability.

Drawings

FIG. 1 is a perspective view of the bottom view of the annular rotating device of the present invention;

FIG. 2 is a perspective view of the top view of the annular rotating device of the present invention;

FIG. 3 is a perspective view of the circular rotating device with a constant force spring according to the present invention;

FIG. 4 is an exploded view of the constant force spring mounted annular rotary device of the present invention;

FIG. 5 is a perspective view of the ring rotator with a cover according to the present invention;

FIG. 6 is a perspective view of the ring gear of FIG. 5 with the upper and lower housings removed;

fig. 7 is a perspective view of the utility model discloses annular rotating device is applied to desk lamp support.

Detailed Description

In order to clearly understand the technical content of the present invention, the following embodiments are specifically mentioned, which are only for the purpose of better understanding the content of the present invention and not for the purpose of limiting the scope of the present invention.

FIG. 1 is a perspective view of the bottom view of the annular rotating device of the present invention; FIG. 2 is a perspective view of the top view of the annular rotating device of the present invention; FIG. 3 is a perspective view of the circular rotating device with a constant force spring according to the present invention; FIG. 4 is an exploded view of the constant force spring mounted annular rotary device of the present invention; FIG. 5 is a perspective view of the ring rotator with a cover according to the present invention; referring to fig. 1, 2, 3, 4 and 5, an annular rotating device includes a fixed frame 1, a rotating ring body 2, a first lamp arm connector 3, a second lamp arm connector 4 and at least one set of rotating torque assembly 5, where the fixed frame includes a fixed ring body 11 and a flange ring 12 extending from an inner ring of the fixed ring body, an annular step 13 is formed on an outer side of a top of the flange ring, the rotating torque assembly includes an axis 51, an upper friction plate 52, a lower friction plate 53, a support column 54, a plurality of disc-shaped elastic sheets 55 and a lock nut 56, and arc-shaped slide rails 21 corresponding to the axis one to one are formed on the rotating ring body; the rotating ring body is sleeved outside the top end of the flange ring and supported on the annular step, the bottom end of the axis is mounted on the fixed ring body, the top end of the axis penetrates out of the corresponding arc-shaped slide rail, and the axis can slide along the arc-shaped slide rail; the lower friction plate and the support column are sequentially sleeved on the shaft center and positioned between the rotating ring body and the fixed ring body, so that the rotating ring body is away from the fixed ring body by a set distance, the plurality of disc-shaped elastic sheets and the upper friction plate are sleeved on the shaft center and positioned on the top surface of the rotating ring body, the locking nut is in threaded connection with the top end of the shaft center, the plurality of disc-shaped elastic sheets and the upper friction plate are locked on the top surface of the rotating ring body, the lower friction plate is in frictional contact with the bottom surface of the rotating ring body, and the upper friction plate is in frictional contact with the top surface of the rotating ring body; the first lamp arm connecting piece is installed on the rotating ring body, and the second lamp arm connecting piece is installed on the fixed ring body.

In the structure, through set up the arc slide rail on rotatory ring body, utilize the arc slide rail to lead to the axle center, fix the axle center on the fixed ring body again, realized the relative rotation function between rotatory ring body and the fixed ring body, through lock nut with a plurality of dish type shell fragments, the friction disc locks on the top surface of rotatory ring body, and will descend friction disc and support column location between rotatory ring body and fixed ring body, make the bottom surface frictional contact of friction disc and rotatory ring body down, go up the top surface frictional contact of friction disc and rotatory ring body, the rotatory torsion between rotatory ring body and the fixed ring body is provided. Therefore, the annular rotating device is formed, an annular space structure can be provided, the shape of the annular rotating device is matched with that of the annular lamp, the annular rotating device can be used for supporting the annular lamp, and therefore the function of an auxiliary lamp can be added on the support of the desk lamp.

Preferably, referring to fig. 2, two sets of the rotating torque assemblies are provided, two arc-shaped sliding rails corresponding to two axes of the two sets of the rotating torque assemblies one to one are formed on the rotating ring body, and the two arc-shaped sliding rails are symmetrically arranged on the rotating ring body. Like this, two sets of rotatory torsion subassembly symmetric connection are between fixed ring body and rotating ring body, can make the rotation each other between rotating ring body and the fixed ring body more steady. But not limited to this, also can set up three groups of rotatory torque force components according to actual need, like this, the turned angle of the relatively fixed ring body of rotatory ring body can be little, for example, when setting up two sets of rotatory torque force components, can guarantee that the rotation contained angle between first lamp arm connecting piece and the second lamp arm connecting piece is 120 degrees, and when setting up three groups of rotatory torque force components, because spatial position is not enough, can only guarantee probably that the rotation contained angle between first lamp arm connecting piece and the second lamp arm connecting piece is 90 degrees.

Preferably, referring to fig. 3 and 4, the rotating torque assembly further includes a constant force spring 57 and a fixed column 58, the top end of the fixed column is mounted on the rotating ring body, the constant force spring is fixedly sleeved outside the supporting column, and the outer end of the constant force spring is fixedly connected to the fixed column. Like this, provide auxiliary torque through increasing the constant force spring, can neutralize the gravity moment that comes from the upper bracket of installation on the first lamp arm connecting piece and lamp holder, and the moment of torsion can be adjusted in real time as required, has compromise the user and has felt when guaranteeing the reliability. When the lamp holder is adjusted downwards from the highest point, the constant force spring is stretched to output torque, and when the lamp holder is adjusted upwards, the constant force spring returns to achieve the purpose of neutralizing gravity torque, so that a user feels that the adjustment is completed with the same force, and the purpose of improving the hand feeling of the user is achieved. Here, the constant force spring, the upper friction plate and the lower friction plate jointly generate torque, and the torque provided by the constant force spring can be controlled by adjusting the width and the inner diameter of the plate spring. When the axle center was fastened by lock nut, lock nut extruded dish type shell fragment, goes up the friction disc, produces the moment of torsion between friction disc and the rotating ring body down, can be through the high position control of adjustment axle center, consequently, the utility model discloses a moment of torsion can be adjusted as required in real time.

Preferably, referring to fig. 4, the constant force spring further includes a balance column 6, an extension column 14 is formed outside the flange ring, the extension column is located between the fixed column and the support column, an arc-shaped groove 15 is formed at a front end of the extension column, a bottom end of the balance column is fixedly connected to the fixed ring body, a top end of the balance column is supported at the bottom of the rotating ring body, an inner side of the balance column is disposed in the arc-shaped groove, and an outer side of the balance column abuts against an inner side of the constant force spring. Here, before the fixed column and the support column were located to the balancing column, on the one hand played the effect of supporting the balanced rotatory ring body, prevented that rotatory ring body from rotating the in-process and producing and rocking, on the other hand when the constant force spring is flexible need a strong point, the balancing column can play the effect of supporting the constant force spring. The extending column also plays a role in supporting the balance rotating ring body, and can be integrally formed with the fixed ring body and the flange ring.

Preferably, referring to fig. 5 and 6, the lamp further includes an outer cover 7, the outer cover includes an upper cover shell 71, a lower cover shell 72 and a middle shell 73, the middle shell is in a cylindrical shape with openings at two ends, annular clamping grooves 731 are formed at two ends of the middle shell, the middle shell is sleeved in the flange ring, the upper cover shell is connected with the annular clamping groove at the top of the middle shell in a buckling manner, the lower cover shell is connected with the annular clamping groove at the bottom of the middle shell in a buckling manner, the upper cover shell is butted with the lower cover shell to form an accommodating cavity enclosing the fixing frame, the rotating ring and the rotating torque component, a first sleeve 711 for avoiding the first arm connector is formed on the upper cover shell, and a second sleeve 721 for avoiding the second arm connector is formed on the lower cover shell. Therefore, the holding cavity formed by the outer cover can hold the fixing frame, the rotating ring body, the rotating torque assembly and the like, the appearance is attractive, the annular lamp can be held in the holding cavity, and the purpose of packaging the annular lamp is achieved.

Below taking two sets of rotatory torque force subassemblies as an example, explaining the utility model discloses annular rotating device is used for the theory of operation of desk lamp support, but not limited to this, the utility model discloses annular rotating device can also be applied to on other needs provide annular space and relative pivoted products.

Referring to fig. 7, the first lamp arm connecting piece is fixedly connected to the upper bracket 110 for supporting the lamp holder of the table lamp, the second lamp arm connecting piece is fixedly connected to the lower bracket 120 for connecting the base of the table lamp, an included angle, for example, 120 degrees, is formed between the first lamp arm connecting piece and the upper bracket and between the second lamp arm connecting piece and the lower bracket, the rotating torque assembly is located at one end of the corresponding arc-shaped sliding rail on the rotating ring body, and the constant force spring is in a contracted state; when the lamp holder needs to be adjusted downwards, the upper support is driven downwards, the upper support drives the rotary ring body to rotate relative to the fixing frame, the axis of the rotary torque assembly slides along the corresponding arc-shaped sliding rail, meanwhile, the disc-shaped elastic sheet is locked, the constant force spring is stretched, and under the combined action of the constant force spring, the upper friction sheet and the lower friction sheet, the torque output of the rotary ring body is realized. When the lamp holder needs to be adjusted upwards, the upper support is driven upwards, the upper support drives the rotating ring body and the axis to rotate and reset under the action of restoring force of the constant force spring, and the constant force spring contracts to neutralize gravity moment in the upward and downward adjustment process, so that a user can feel that the adjustment is completed with the same force, and the purpose of improving the hand feeling of the user is achieved.

The above embodiments have been described in detail with reference to the accompanying drawings. Those skilled in the art can make various modifications and changes to the above embodiments without departing from the spirit of the present invention, and the scope of the present invention is also covered by the appended claims.

Claims

1. An annular rotating device, its characterized in that: the lamp holder comprises a fixed frame (1), a rotating ring body (2), a first lamp arm connecting piece (3), a second lamp arm connecting piece (4) and at least one group of rotating torque assembly (5), wherein the fixed frame comprises a fixed ring body (11) and a flange ring (12) extending from an inner ring of the fixed ring body, an annular step (13) is formed on the outer side of the top of the flange ring, the rotating torque assembly comprises an axis (51), an upper friction plate (52), a lower friction plate (53), a support column (54), a plurality of disc-shaped elastic sheets (55) and a locking nut (56), and arc-shaped sliding rails (21) which are in one-to-one correspondence with the axis are formed on the rotating ring body; the rotating ring body is sleeved outside the top end of the flange ring and supported on the annular step, the bottom end of the axis is mounted on the fixed ring body, the top end of the axis penetrates out of the corresponding arc-shaped slide rail, and the axis can slide along the arc-shaped slide rail; the lower friction plate and the support column are sequentially sleeved on the shaft center and positioned between the rotating ring body and the fixed ring body, so that the rotating ring body is away from the fixed ring body by a set distance, the plurality of disc-shaped elastic sheets and the upper friction plate are sleeved on the shaft center and positioned on the top surface of the rotating ring body, the locking nut is in threaded connection with the top end of the shaft center, the plurality of disc-shaped elastic sheets and the upper friction plate are locked on the top surface of the rotating ring body, the lower friction plate is in frictional contact with the bottom surface of the rotating ring body, and the upper friction plate is in frictional contact with the top surface of the rotating ring body; the first lamp arm connecting piece is installed on the rotating ring body, and the second lamp arm connecting piece is installed on the fixed ring body.

2. The ring rotating apparatus according to claim 1, wherein: the rotary torsion assembly is provided with two groups, two arc-shaped sliding rails which are in one-to-one correspondence with two axes of the two groups of rotary torsion assemblies are formed on the rotary ring body, and the two arc-shaped sliding rails are symmetrically arranged on the rotary ring body.

3. The ring rotating apparatus according to claim 1, wherein: the rotating torque assembly further comprises a constant force spring (57) and a fixed column (58), the top end of the fixed column is installed on the rotating ring body, the constant force spring is fixedly sleeved outside the supporting column, and the outer end of the constant force spring is fixedly connected to the fixed column.

4. An annular rotary device as claimed in claim 3, wherein: still include compensating column (6), the flange ring outside is formed with extension post (14), the extension post is located the fixed column with between the support column, the extension post front end is formed with arc wall (15), the bottom rigid coupling of compensating column in on the fixed ring body, the top of compensating column support in the bottom of the rotating ring body, just the compensating column inboard is arranged in the arc wall, the outside butt of compensating column in the inboard of constant force spring.

5. The ring rotating apparatus according to claim 1, wherein: still include dustcoat (7), the dustcoat includes housing (71), lower housing (72) and middle shell (73), middle shell is both ends open-ended tube-shape, the both ends of middle shell are formed with annular clamping groove (731), middle housing cover is located in the flange intra-annular, go up the housing with the annular clamping groove buckle at middle shell top is connected, the housing with the annular clamping groove buckle of middle shell bottom is connected down, just go up the housing with the housing butt joint down, form one will the mount rotatory ring body with the holding chamber including rotatory torsion subassembly surrounds, be formed with on the upper shield and dodge first sleeve (711) of first arm connecting piece, be formed with on the lower housing and dodge second sleeve (721) of second arm connecting piece.