CN207268358U - A kind of display screen rotating mechanism for upper limb trainer - Google Patents
A kind of display screen rotating mechanism for upper limb trainer Download PDFInfo
- Publication number
- CN207268358U CN207268358U CN201720882508.8U CN201720882508U CN207268358U CN 207268358 U CN207268358 U CN 207268358U CN 201720882508 U CN201720882508 U CN 201720882508U CN 207268358 U CN207268358 U CN 207268358U
- Authority
- CN
- China
- Prior art keywords
- shell
- display screen
- connecting shaft
- rotating mechanism
- axle sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of display screen rotating mechanism for upper limb trainer,Upper limb trainer includes seat,Display screen rotating mechanism includes display screen,Rotary part on seat and the stent for connecting display screen and rotary part,Rotary part includes the connecting shaft being fixedly connected with seat and the shell being fixedly connected with stent,Shell is equipped with the through hole for connecting shaft insertion,It is fixedly connected with shell in connecting shaft insertion through hole and axially and shell can be circumferentially rotated around connecting shaft,Axle sleeve is equipped between connecting shaft and shell,Unilateral gap between axle sleeve and shell is D,0≤D≤0.5mm,By setting axle sleeve,And the gap very little between axle sleeve and shell,When making shell with holder pivots,Shell will not be produced and rocked,Therefore display screen, which will not produce, rocks,Make display screen rotating mechanism use more steady,And by setting axle sleeve connected with outer casing and connecting shaft,It instead of and traditional connected with bearing,Structure is simpler,Production cost is low.
Description
Technical field
Display screen rotating mechanism field is the utility model is related to, more particularly to a kind of display screen for upper limb trainer revolves
Rotation mechanism.
Background technology
Display screen rotating mechanism on the market is to be fixed on by axis and bearing fit on pedestal mostly at present, and bearing has
Radial clearance can cause it is slight rock, due to upper limb trainer display screen fix on the seat, the screen of display screen and company
Connect that rotating part is distant, it is necessary to which slight can be rocked amplification, obvious must can felt at screen end by the longer arm of force, the arm of force
Rock, and bearing drag is smaller, it is necessary to which in addition increase damping structure could realize slow rotation, structure is more complicated.
The content of the invention
The purpose of this utility model is to provide it is a kind of for upper limb trainer and use display steady, simple in structure
Shield rotating mechanism.
In order to achieve the above object, the utility model adopts the following technical solution：A kind of display for upper limb trainer
Shield rotating mechanism, upper limb trainer includes seat, display screen rotating mechanism including display screen, the rotary part on seat and
For connecting the stent of display screen and rotary part, rotary part includes the connecting shaft being fixedly connected with seat and is fixed with stent
The shell of connection, shell are equipped with the through hole for connecting shaft insertion, and connecting shaft insertion through hole is interior and is axially fixedly connected with shell
And shell can be circumferentially rotated around connecting shaft, axle sleeve is equipped between connecting shaft and shell, the unilateral gap between axle sleeve and shell is
D, 0≤D≤0.5mm.
Further, the surface roughness of the sleeve outer surface is Ra, Ra≤1.6.
Further, the axle sleeve is interference fitted with connecting shaft.
Further, the axle sleeve is anti-wear sleeve.
Further, the anti-wear sleeve is brass axle sleeve；Alternatively, the anti-wear sleeve is wear resistant plastic axle sleeve.
Further, limit stop ring is equipped with the shell and positioned at through hole, the top of connecting shaft is equipped with and limiting block
The limited step coordinated is enclosed, the lower part of connecting shaft is equipped with fixing piece, plastic washers are equipped between limited step and limit stop ring.
Further, the fixing piece is nut, and connecting shaft is sequentially connected with nut, and rotating nuts enable connecting shaft
Move up and down and act on damping force in limit stop ring to adjust plastic washers.
Further, the side of the nut is equipped with and marks closely screw, marks closely the week between screw fixing nut and connecting shaft
To position.
Further, the plastic washers include the first plastic washers and the second plastic washers, the first plastic washers and
Two plastic washers are stacked.
Further, the connecting shaft is equipped with spacing rib, and shell is equipped with and the matched limiting slot of spacing rib.
In the utility model, the orientation or position relationship of the instruction such as " top ", " lower part " " on " " under " are based on attached
Orientation or position relationship shown in figure, are for only for ease of and describe the utility model and simplify to describe, rather than instruction or hint
Signified device or original paper must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of utility model.
After adopting the above technical scheme, the utility model has the following advantages that：
1st, by setting rotary part, rotary part includes connecting shaft and shell, and connecting shaft is fixed on the seat, and shell is solid
It is scheduled on stent, stent one end is fixedly connected with shell, and the stent other end is fixedly connected with display screen, so that display screen passes through
Rotary part is connected with seat, and shell is equipped with the through hole for connecting shaft insertion, and connecting shaft insertion through hole is interior and axial with shell
It is fixedly connected and shell can be circumferentially rotated around connecting shaft, axle sleeve, the list between axle sleeve and shell is equipped between connecting shaft and shell
Side gap is D, 0≤D≤0.5mm, by setting axle sleeve, and the gap very little between axle sleeve and shell, shell is turned with stent
When dynamic, shell will not be produced and rocked, therefore display screen will not be produced and rocked, and make display screen rotating mechanism use more steady.
It is fixed between axle sleeve and shell, it is impossible to rotate as D ＜ 0；As D ＞ 0.5mm, gap is excessive between axle sleeve and axis, in shell
During rotation, easily produce and rock.Also, by setting axle sleeve connected with outer casing and connecting shaft, instead of it is traditional connected with bearing,
Structure is simpler, and production cost is low.
2nd, the surface roughness of sleeve outer surface is Ra, and Ra≤1.6 make sleeve outer surface smoother, and abrasion resistance compares
Good, effective contact area of axle sleeve and shell is bigger, and transmission is more steady, does not allow to be also easy to produce rolling when shell is with holder pivots
Dynamic, as Ra ＞ 1.6, the surface of axle sleeve is relatively rough, and effective contact area between shell is smaller, easy to wear, and
Be driven it is unstable, when shell is with holder pivots easily produce rock.
3rd, axle sleeve and connecting shaft are interference fitted, and axle sleeve is fixedly connected with connecting shaft, when shell is with holder pivots, axle sleeve
To be fixed on the seat by connecting shaft, friction is only occurred between axle sleeve and shell, because axle sleeve and shell small―gap suture coordinate, so
Shell, which is not allowed to be also easy to produce, to be rocked, and makes display screen rotating mechanism use more steady.
4th, when shell is with holder pivots, rub between axle sleeve and shell, axle sleeve avoids as far as possible for anti-wear sleeve
Gap increase between axle sleeve and shell, ensures that shell will not produce in use and rocks, make display screen rotating mechanism
With relatively steadily, while also increase the service life of whole mechanism.
5th, anti-wear sleeve is brass axle sleeve or wear resistant plastic material, has both possessed preferable antiwear characteristic, the price of material
It is again cheap, save production cost.
6th, by setting limit stop ring on the shell and positioned at through hole, the top of connecting shaft is set to be coordinated with limit stop ring
Limited step, the lower part of connecting shaft sets fixing piece, and connecting shaft passes through limit stop ring and fixing piece and connects with shell axial restraint
Connect, plastic washers be equipped between limited step and limit stop ring, when shell is with holder pivots, plastic washers and limit stop ring it
Between can produce damping, therefore the mechanism is damping rotary that display screen can be achieved without in addition setting damper, revolves display screen
The structure of rotation mechanism is simple；And plastic washers, because being soft contact, will not be produced when producing damping with limit stop ring friction
Noise, user's use feeling are good.
7th, fixing piece is nut, and nut is engaged the axial location of limitation connecting shaft with limit stop ring, makes the axis of connecting shaft
Fixed to position, will not produce and rock in rotation process, make display screen rotating mechanism use more steady；Connecting shaft and nut
It is sequentially connected, rotating nuts connecting shaft to move up and down to act on compression on plastic washers so as to adjust limited step
Power, so that adjusting plastic washers acts on damping force in limit stop ring, when rotating nuts are so that connecting shaft is moved upwards, limit
Position the distance between baffle ring and limited step increase, the thrust acted on plastic washers reduces, when shell is with holder pivots,
The damping force that plastic washers are acted in limit stop ring reduces；When rotating nuts are so that connecting shaft moves downward, limit stop ring
The distance between limited step reduces, and acts on the thrust increase on plastic washers, when shell is with holder pivots, plastic pad
Circle acts on the damping force increase in limit stop ring, by setting nut to be sequentially connected with connecting shaft, can easily change
The rotating elasticity of display screen, without in addition setting damper, makes display screen rotating mechanism simple in structure and adjusts damping force
It is easy to operate.
8th, screw is marked closely by being set in the side of nut, when the location determination of nut, can be consolidated by marking closely screw
Determine the circumferential position between nut and connecting shaft, further ensure display screen rotating mechanism in use, nut will not
Loosen, make the use of display screen rotating mechanism more steady, reliable.
9th, by setting the first plastic washers and the second plastic washers to be stacked, the compressible of plastic washers is added
Amount, so as to add the adjustable extent of the damping force of plastic washers effect on the shell, makes the damping force of display screen rotating mechanism
Adjustable extent is wider.
10th, by being equipped with spacing rib in connecting shaft, shell is equipped with limiting slot, and spacing rib rotates in limiting slot, limit
Position rib is engaged the rotational angle range of controling shell with limiting slot, so that the rotational angle range of stent is controlled, it is easy to use,
Also avoid rotational angle excessive and miscellaneous part collides and causes accident, add the security of display screen rotating mechanism.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is that the fit structure of display screen rotating mechanism and upper limb trainer described in the utility model embodiment one is illustrated
Figure.
Fig. 2 is the sectional view of rotary part in display screen rotating mechanism described in the utility model embodiment one.
Fig. 3 is the explosive view of rotary part in display screen rotating mechanism described in the utility model embodiment one.
Fig. 4 is the sectional view of rotary part in display screen rotating mechanism described in the utility model embodiment two.
It is as follows that the names of the parts is marked in figure：
1st, seat；2nd, display screen；3rd, rotary part；31st, connecting shaft；313rd, limited step；314th, plastic washers；3141、
First plastic washers；3142nd, the second plastic washers；315th, axle sleeve；316th, centre bore；317th, spacing rib；32nd, shell；321st, lead to
Hole；322nd, limit stop ring；323rd, upper shell；324th, lower housing shell；33rd, nut；331st, gasket；332nd, threaded hole；34th, limiting slot；
4th, stent.
Embodiment
Embodiment one：
As shown in Figures 1 to 3, the utility model provides a kind of display screen rotating mechanism for upper limb trainer, upper limb instruction
Practicing device includes seat 1, and display screen rotating mechanism includes display screen 2, rotary part 3 and stent 4, and rotary part 3 is installed on seat 1
On, stent 4 connects display screen 2 and rotary part 3, so that display screen 2 is connected by rotary part 3 with seat 1, rotary part
3 include connecting shaft 31 and shell 32, and rotary part 3 is installed on seat 1 by connecting shaft 31, and rotary part 3 passes through shell 32
It is connected with stent 4, shell 32 is equipped with the through hole 321 being inserted into for connecting shaft 31, and connecting shaft 31 is inserted into through hole 321 and and shell
32 axial restraints connect, and shell 32 can be circumferentially rotated around connecting shaft 31, and axle sleeve is provided between connecting shaft 31 and shell 32
315, the unilateral gap between axle sleeve 315 and shell 32 is D, 0≤D≤0.5mm, by setting axle sleeve 315, and axle sleeve 315 with
Gap very little between shell 32, when the shell 32 is rotated with stent 4, shell 32 will not be produced and rocked, therefore display screen 2 is not yet
It can produce and rock, make display screen rotating mechanism use more steady.Also, by setting 315 connected with outer casing 32 of axle sleeve and connection
Axis 31, instead of it is traditional connected with bearing, structure is simpler, and production cost is low.In the present embodiment, D 0.05mm, between being somebody's turn to do
Gap very little, can't shake when shell is with holder pivots, while not be especially high to processing technology requirement, save life
Produce cost.
The height of axle sleeve 315 is H, H >=25mm, in the present embodiment, H 50mm, this highly make axle sleeve 315 and shell 32 it
Between can have enough contacts area, make shell 32 around axle sleeve 315 rotate when will not more steadily produce and rock, while make display
It is more reasonable to shield the size of rotating mechanism, because of axle sleeve is long mechanism will not be caused excessive inconvenient to use.
The surface roughness of the outer surface of axle sleeve 315 is Ra, Ra≤1.6, in the present embodiment, Ra 0.4, and the rough surface
Degree makes the outer surface smoother of axle sleeve 315, and abrasion resistance is relatively good, and axle sleeve 315 and effective contact area of shell 32 are bigger,
Transmission is more steady, does not allow to be also easy to produce when shell 32 is rotated with stent 4 and rocks, while is not special to processing technology requirement
Height, has saved production cost.
Axle sleeve 315 is interference fitted with connecting shaft 31, axle sleeve 315 is fixedly connected with connecting shaft 31, in shell 32 with stent 4
During rotation, axle sleeve 315 is fixed on the seat by connecting shaft 31, and friction is only occurred between axle sleeve 315 and shell 32, because of axle sleeve
315 and 32 small―gap suture of shell coordinate, rocked so shell 32 is not allowed to be also easy to produce, make display screen rotating mechanism use more steady.
Axle sleeve 315 is anti-wear sleeve, when shell 32 is rotated with stent 4, is rubbed between axle sleeve 315 and shell 32,
Axle sleeve 315 avoids the gap increase between axle sleeve 315 and shell 32 for anti-wear sleeve as far as possible, ensures shell in use
It will not produce and rock, make display screen rotating mechanism use more steady, while also increase the service life of whole mechanism.This reality
Apply in example, anti-wear sleeve is brass axle sleeve, and brass possesses preferable antiwear characteristic, and the price of brass is again cheap, has saved production
Cost.
Shell 32 is equipped with limit stop ring 322 near through hole 321, and the top of connecting shaft 31 is equipped with matches somebody with somebody with limit stop ring 322
The limited step 313 of conjunction, the lower part of connecting shaft 31 are provided with fixing piece, connecting shaft 31 by limit stop ring 322 and fixing piece with
32 axial restraint of shell connects, and plastic washers 314 is provided between limited step 313 and limit stop ring 322, in shell 32 with branch
When frame 4 rotates, damping can be produced between plastic washers 314 and limit stop ring 322, therefore in addition the mechanism is without setting damper
The damping rotary of display screen can be achieved, make the structure of display screen rotating mechanism simple；And plastic washers 314 with limiting block
When the friction of circle 322 produces damping, because being soft contact, noise will not be produced, user's use feeling is good.
Specifically, fixing piece is nut 33, nut 33 is engaged the axial position of limitation connecting shaft 31 with limit stop ring 322
Put, fix the axial location of connecting shaft 31, will not produce and rock in rotation process, compare display screen rotating mechanism use
Steadily.Connecting shaft 31 is sequentially connected with nut 33, and it is spacing so as to adjust that rotating nuts 33 enable connecting shaft 31 to move up and down
Step 313 acts on the thrust on plastic washers 314, so that adjusting plastic washers 314 acts on resistance in limit stop ring 322
Buddhist nun's power, when rotating nuts 33 make it that connecting shaft 31 is moved upwards, the distance between limit stop ring 322 and limited step 313 increase
Greatly, the thrust acted on plastic washers 314 reduces, and when shell 32 is rotated with stent 4, plastic washers 314 act on spacing
Damping force on baffle ring 322 reduces；During when rotating nuts 33 so that connecting shaft 31 moves downward, limit stop ring 322 and limiting stand
The distance between rank 313 reduces, and acts on the thrust increase on plastic washers 314, when shell 32 is rotated with stent 4, plastic cement
Packing ring 314 acts on the damping force increase in limit stop ring 322, can be with by setting nut 33 to be sequentially connected with connecting shaft 31
Easily change the rotating elasticity of display screen, without in addition set damper, make display screen rotating mechanism simple in structure and
Adjust the easy to operate of damping force.
Gasket 331 is installed, gasket 331 is installed between nut 33 and shell 32, by nut 33 in connecting shaft 31
Gasket 331 is set between shell 32, the frictional force between nut 33 and shell 32 is added, the connection of nut 33 more may be used
Lean on, ensure display screen rotating mechanism in use, nut will not loosen, make the use of display screen rotating mechanism it is steady, can
Lean on；Prevent from damaging connecting shaft in the rotation of nut and compaction process at the same time, make the use of display screen rotating mechanism relatively reliable.
The side of nut 33, which is equipped with, to be used to install the threaded hole 332 for marking closely screw, when the location determination of nut 33, is passed through
Screw is marked closely in installation further to ensure display screen rotating mechanism with the circumferential position between fixing nut 33 and connecting shaft 31
In use, nut will not loosen, and make the use of display screen rotating mechanism more steady, reliable.
Have the centre bore 316 through connecting shaft 31 in connecting shaft 31, centre bore 316 is used for conducting wire of arranging, shell 32 with
During stent 4 rotates, because connecting shaft 31 is fixed, conducting wire will not be rotated and then, avoided conducting wire and twisted disconnected phenomenon, and avoid
Conducting wire is arranged on outside, not only rationally makes that the structure of mechanism is more reasonable, security compact but also that add mechanism using space, makes
The use of display screen rotating mechanism is more safe and reliable.
Shell 32 includes upper shell 323 and lower housing shell 324, and lower housing shell 324 is fixed by screws on stent 4, upper shell
323 are connected with lower housing shell 324 by screw and can drive upper shell installed in the top of lower housing shell 324, swinging mounting 4
323 rotate around connecting shaft 31, by setting upper shell 323 and lower housing shell 324, facilitate the installation of connecting shaft 31, are also convenient for
The damping force on stent is acted on by adjusting nut change rotating mechanism, makes the installation of display screen rotating mechanism and using all more
Add conveniently.
Connecting shaft 31 is equipped with spacing rib 317, and shell 32 is equipped with limiting slot 34, and spacing rib 317 turns in limiting slot 34
Dynamic, spacing rib 317 is engaged the rotational angle range of controling shell 32 with limiting slot 34, so as to control the rotational angle of stent 4
Scope, it is easy to use, also avoid rotational angle excessive and miscellaneous part collides and causes accident, add display screen whirler
The security of structure.
It should be understood that D can also be 0,0.1,0.2,0.3,0.4,0.5 etc..
It should be understood that H can also be 25mm, 30mm, 35mm, and 40mm, 45mm, 55mm, 60mm etc., as long as making axle sleeve
There are enough contacts area with shell.
It should be understood that Ra can also be 0.05,0.1,0.2,0.8,1.6.
It should be understood that anti-wear sleeve can also be wear resistant plastic axle sleeve, meet antiwear characteristic.
Embodiment two：
The difference between this embodiment and the first embodiment lies in plastic washers are equipped with two.
As shown in figure 4, plastic washers include the first plastic washers 3141 and the second plastic washers 3142, the first plastic washers
3141 and second plastic washers 3142 be stacked, the advantages of this arrangement are as follows, add the compressible amounts of plastic washers, from
And the adjustable extent of the damping force of plastic washers effect on the shell is added, make the adjustable model of damping force of display screen rotating mechanism
Enclose wider.
It should be understood that the quantity of plastic washers can also be 3,4,5 etc..
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
Made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to
Scope defined in appended claims.
Claims (10)
1. a kind of display screen rotating mechanism for upper limb trainer, upper limb trainer includes seat, display screen rotating mechanism bag
Include display screen, the rotary part on seat and the stent for connecting display screen and rotary part, it is characterised in that described
Rotary part includes the connecting shaft being fixedly connected with seat and the shell being fixedly connected with stent, and shell is equipped with and is inserted for connecting shaft
The through hole entered, is fixedly connected in connecting shaft insertion through hole and axially and shell can be circumferentially rotated around connecting shaft, connecting shaft with shell
Axle sleeve is equipped between shell, the unilateral gap between axle sleeve and shell is D, 0≤D≤0.5mm.
2. display screen rotating mechanism according to claim 1, it is characterised in that the surface roughness of the sleeve outer surface
For Ra, Ra≤1.6.
3. display screen rotating mechanism according to claim 1, it is characterised in that the axle sleeve is interference fitted with connecting shaft.
4. display screen rotating mechanism according to claim 1, it is characterised in that the axle sleeve is anti-wear sleeve.
5. display screen rotating mechanism according to claim 4, it is characterised in that the anti-wear sleeve is brass axle sleeve；Or
Person, the anti-wear sleeve are wear resistant plastic axle sleeve.
6. display screen rotating mechanism according to claim 1, it is characterised in that be equipped with the shell and positioned at through hole
Limit stop ring, the top of connecting shaft are equipped with the limited step coordinated with limit stop ring, and the lower part of connecting shaft is equipped with fixing piece, spacing
Plastic washers are equipped between step and limit stop ring.
7. display screen rotating mechanism according to claim 6, it is characterised in that the fixing piece is nut, connecting shaft with
Nut is sequentially connected, and rotating nuts connecting shaft to move up and down to act on resistance in limit stop ring to adjust plastic washers
Buddhist nun's power.
8. display screen rotating mechanism according to claim 7, it is characterised in that the side of the nut is equipped with and marks closely spiral shell
Nail, marks closely the circumferential position between screw fixing nut and connecting shaft.
9. display screen rotating mechanism according to claim 6, it is characterised in that the plastic washers include the first plastic pad
Circle and the second plastic washers, the first plastic washers and the second plastic washers are stacked.
10. display screen rotating mechanism according to claim 1, it is characterised in that the connecting shaft is equipped with spacing rib, outside
Shell is equipped with and the matched limiting slot of spacing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720882508.8U CN207268358U (en) | 2017-07-20 | 2017-07-20 | A kind of display screen rotating mechanism for upper limb trainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720882508.8U CN207268358U (en) | 2017-07-20 | 2017-07-20 | A kind of display screen rotating mechanism for upper limb trainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268358U true CN207268358U (en) | 2018-04-24 |
Family
ID=61960043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720882508.8U Expired - Fee Related CN207268358U (en) | 2017-07-20 | 2017-07-20 | A kind of display screen rotating mechanism for upper limb trainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824737A (en) * | 2019-11-20 | 2021-05-21 | 海信视像科技股份有限公司 | Television receiver |
-
2017
- 2017-07-20 CN CN201720882508.8U patent/CN207268358U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824737A (en) * | 2019-11-20 | 2021-05-21 | 海信视像科技股份有限公司 | Television receiver |
| CN112824737B (en) * | 2019-11-20 | 2023-11-14 | 海信视像科技股份有限公司 | Television set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180424 |