CN2467075Y - Myopia proof sitting posture orthopaedic device - Google Patents
Myopia proof sitting posture orthopaedic device Download PDFInfo
- Publication number
- CN2467075Y CN2467075Y CN 01204304 CN01204304U CN2467075Y CN 2467075 Y CN2467075 Y CN 2467075Y CN 01204304 CN01204304 CN 01204304 CN 01204304 U CN01204304 U CN 01204304U CN 2467075 Y CN2467075 Y CN 2467075Y
- Authority
- CN
- China
- Prior art keywords
- sitting posture
- backstop
- myopia prevention
- shoulder hole
- correcting sitting
- 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
Links
- 208000001491 myopia Diseases 0.000 title claims abstract description 24
- 230000004379 myopia Effects 0.000 title claims abstract description 24
- 230000002265 prevention Effects 0.000 claims description 20
- 210000000245 forearm Anatomy 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
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Abstract
The utility model relates to a myopia proof sitting posture orthopaedic device which is provided with two fixing boards. Rotary connection is formed between the two fixing boards. A regulating mechanism is positioned at the connecting point of the two fixing boards. The connecting point of the regulating mechanism and two fixing boards is provided with a spacing mechanism and a fastening device. One end of the regulating mechanism is provided with a stopper. The stopper passes through the connecting point of the two fixing boards, and leans at the corresponding side of the connecting point to be axially clamped and fixed. The utility model avoids arranging the convex-concave complex craft in holes, and the utility model has the advantages of simple processing technique, easy assembly, and easy use.
Description
This utility model relates to a kind of myopia prevention correcting sitting posture device, and especially suitable child, students in middle and primary schools correct and see the written word faulty posture, prevent myopia.
See in the learning process of written word people, especially in child, students in middle and primary schools' the learning process, abnormal sitting posture, with eye distance from the unreasonable learner eyestrain that causes often until one of major reason of myopia.
The inventor finds through secular observation, when people when the posture of writing is incorrect, different variations can take place with angle between forearm in its big arm, along with eye distance from reduce, this angle will inevitably reduce thereupon.Therefore limit the size of this angle, the people is being corrected faulty sitting posture unconsciously.It is 99214164.8 a kind of myopia prevention correcting sitting posture device that the inventor utilizes above-mentioned principle to develop the patent No., this myopia prevention correcting sitting posture device is that a device of angle between the big arm of may command and the forearm only is set at the wrist place, make learner when writing, minimum angles between big arm and the forearm can be fixed, thereby reach the purpose of the pre-myopia prevention that corrects faulty sitting posture.Though this myopia prevention correcting sitting posture device can effectively correct faulty sitting posture, pre-myopia prevention, but it is made to add and has following defective man-hour, (1) axial limiting between its rotating mechanism all adopts convex-concave structure, as between axle and the axle sleeve, adjusting knob and the axle between, all be to cooperate to come the mutual axial displacement of restrictive axes, axle sleeve and adjusting knob, they can only be done relatively rotate in a circumferential direction by corresponding circuit of convex-concave or annular groove.These convex-concaves cooperate has increased assembly difficulty, has brought very big inconvenience to assembling.(2) during injection mo(u)lding owing to have protruding road or groove in the hole, thereby mould offer and the processing technique such as design of core-pulling mechanism all very complicated, thereby increased the manufacturing cost of product.
The purpose of this utility model is to overcome the defective of the said goods, and a kind of myopia prevention correcting sitting posture device is provided, and processing technique is simple, and assembling easily, and is easy to use.
The purpose of this utility model is to realize like this, a kind of myopia prevention correcting sitting posture device, be provided with two fixing heads, be rotationally connected between two fixing heads, governor motion is positioned the junction between two fixing heads, be provided with position-limit mechanism and clamp device between this governor motion and the two fixing head junctions, it is characterized in that: an end of described governor motion is provided with backstop, and this backstop is passed the junction of described two fixing heads and kept off the respective side that is against this junction and axially fixes.
Described governor motion reaches the nut that is connected with this screw spiral by a screw rod and constitutes, and described backstop is located at the front end of this screw rod.The other end of this screw rod is installed with adjusting knob, and this adjusting knob and described backstop are arranged in the both sides of described two fixing head junctions respectively, and the restriction screw rod is with respect to the axial displacement of described two fixing head junctions.This backstop is provided with an elastic opening vertically at least, and the front end of this backstop is taper.The cross section of described backstop is circular or scarce limit circle, breach circle.
The junction of described two fixing heads is provided with shoulder hole vertically, and described governor motion is arranged in this shoulder hole.The nut of described governor motion and the contacted end face of this shoulder hole are an inclined-plane, and the corresponding end-faces of described shoulder hole also is an inclined-plane, the described position-limit mechanism of the common formation of the inclined-plane of nut and described shoulder hole respective ramp.
Be provided with axial guiding device between the shoulder hole of the junction of described nut and described two fixing heads.Corresponding protruding road or the groove that matches with this chute that be provided with constitutes on the chute that this axial guiding device is axially arranged with by the nut upper edge or protruding road and the described shoulder hole.Described two blocks of solid plates are provided with the fixture of fixing big arm and forearm respectively.
Because the method that this utility model employing is established backstop at the screw front end of governor motion limits the axial displacement of screw rod with respect to two fixing heads, protruding road or groove have been avoided in the shoulder hole of two fixing head junctions, being provided with, mould offer and the processing technique such as design of core-pulling mechanism all become simple, simplify manufacturing process greatly, thereby reduced production cost of products.In addition, because backstop of the present utility model is provided with elastic opening vertically, when assembling, only need the nut spiral is connected on the screw rod, again screw rod is arranged in the step trough of two fixing head junctions, the backstop of screw front end can be opened and keep off the respective side that is against this junction and be fixed under resilient force, reach the purpose of the axial displacement of restriction screw rod, operates very simple and convenient.
The explanation of accompanying drawing drawing:
Fig. 1 structural front view of the present utility model;
The side view of Fig. 2 this utility model Fig. 1;
The A-A cutaway view of Fig. 3 this utility model Fig. 1;
The B-B cutaway view of Fig. 4 this utility model Fig. 1;
The C-C cutaway view of Fig. 5 this utility model Fig. 1;
As follows below in conjunction with embodiment and accompanying drawing detailed description this utility model:
As shown in Figure 1 and Figure 2, this utility model is provided with two fixing heads 11,12,11,12 of two fixing heads are rotationally connected, and governor motion 2 is positioned the junction 13 of 11,12 of two fixing heads, are provided with position-limit mechanism 3 and clamp device between the junction 13 of this governor motion 2 and two fixing heads 11,12.One end of this governor motion 2 is provided with backstop 21, and this backstop 21 is passed the junction 13 of described two fixing heads 11,12 and respective side 131 fixings that retaining is against this junction 13.
As shown in Figure 1, governor motion 2 reaches the nut 23 that is connected with these screw rod 2 spirals by a screw rod 22 and constitutes, and described backstop 21 is located at the front end of this screw rod 22.The other end of described screw rod 22 is installed with adjusting knob 24, and this adjusting knob 24 and described backstop 21 are arranged in side 131, the side 132 of described two fixing heads 11,12 junctions 13 respectively, and restriction screw rod 22 is with respect to the axial displacement of two fixing heads 11,12.After the axial displacement of screw rod 22 was limited, when knob 24 was regulated in rotation, this screw rod 22 can only be done and rotate in a circumferential direction and can not move axially.The junction 13 of this two fixing head 11,12 is provided with shoulder hole 14 vertically, and described governor motion 2 is arranged in this shoulder hole 14.Nut 23 and these shoulder hole 14 contacted end faces of this governor motion 2 are an inclined-plane 231, and the corresponding end-faces of described shoulder hole 14 also is an inclined-plane 141, the inclined-plane 231 of nut 23 and the described position-limit mechanism 3 of described shoulder hole 14 respective ramp, 141 common formation.
14 of the nut 23 of governor motion 2 of the present utility model and shoulder holes can be provided with axial guiding device.This axial guiding device can be axially arranged with that corresponding protruding road or the groove that matches with this chute that be provided with constitutes on chute or protruding road and the shoulder hole 14 by nut 23 upper edges.As Fig. 4, shown in Figure 5, in the present embodiment, this axial guiding device constitutes by being located at slideway 142 in the shoulder hole 14 and the groove of being located on the nut 23 232.After the installation, this slideway 142 matches with groove 232, and nut 23 can only be moved and can not circumferentially rotate with respect to shoulder hole 14 along the axial linear reciprocation of shoulder hole 14.
As Fig. 1, shown in Figure 3, the backstop 21 of being located at screw rod 22 1 ends is provided with an elastic opening 25 vertically at least.For ease of installing, the front end of this backstop 21 can be taper.In the time of in the junction 13 that governor motion 2 is installed on two fixing heads 11,12, the screw rod 22 of this governor motion 2 passes the macropore of shoulder hole 14, and under the taper guiding of screw rod 22 front end backstops 21, the respective side 131 that aperture backstop 21 retaining that the front end of screw rod 22 passes shoulder hole 14 is against the junction 13 of two fixing heads 11,12 fixes, and this moment, adjusting knob 24 retainings of screw rod 22 other ends were against 132 location, another side of the junction 13 of two fixing heads 11,12.Because backstop 21 is provided with elastic opening 25 vertically, collapsible distortion when passing the aperture of shoulder hole 14, thereby this backstop 21 can be passed shoulder hole 14 at an easy rate, and under the elastic restoring force effect of elastic opening 25, this backstop 21 is opened and kept off and be against sidewall 131 and axially fix.Pass the frictional resistance of shoulder hole 14 for reducing backstop 21, as shown in Figure 3, the cross section of backstop 21 can be and lacks the limit circle.Certainly, the cross section of backstop 21 can be circle, breach is circular or other shapes, is against the purpose that axially fixes in sidewall 131 as long as this backstop 21 can reach retaining.
Two fixing heads 11,12 are provided with the fixture 111,121 of fixing big arm and forearm respectively as shown in Figure 1 and Figure 2.This fixing head 11,12 can be flat board, also can be the radian plate that has certain radian, and this radian can be designed to and big arm and the identical shape of forearm radian, makes user comparatively comfortable in use.
This utility model can utilize fixture 111,121 two fixing heads 11,12 to be fixed on the big arm and forearm of user respectively in use.When just fit in two inclined-planes 141,231 of stopping means 3, two fixing heads 11,12 one-tenth 180 degree angles, the big arm of user and forearm can not drive 11,12 activities of two fixing heads.Because be conditioned screw rod 22 knob 24 and backstop 21 have limited and have moved axially, and the nut 23 that is connected with screw rod 22 spirals can only move vertically under the restriction of axial guiding device and can not rotate, like this when user uses, rotation adjusting knob 24 makes screw rod 22 rotate in a circumferential direction with respect to two fixing heads 11,12, nut 23 moves forward a segment distance, and two inclined-planes of stopping means 3 were opened the big arm and the forearm that make user in 141,231 minutes can drive two fixing heads 11,12 activity in certain angle that is rotationally connected.When temporarily not using, continuing rotation adjusting knob 24 makes nut 23 move sufficiently long distance vertically, two inclined-planes 141,231 of stopping means 3 can not contact when fixing head 11,12 activities, and it is free movable that the big arm of user and forearm can drive two fixing heads.When user continues to use, reverse rotation adjusting knob 24, nut 23 move backward, and the distance that two inclined-planes of stopping means 3 were opened in 141,231 minutes diminishes, it is movable that fixing head 11,12 is limited in the certain angle, thereby limited the range of activity of big arm of user and forearm.Therefore, user can be by regulate regulating the activity point of view that select button 24 controls two fixing heads 11,12, thus the range of activity of restriction big arm of user and forearm, the restriction user with eye distance from, reach and correct faulty sitting posture the purpose of pre-myopia prevention.
Because the method that this utility model employing is established backstop 21 at screw rod 22 front ends of governor motion 2 limits the axial displacement of screw rod 22 with respect to two fixing heads 11,12, avoided in the shoulder hole 14 of two fixing heads, 11,12 junctions 13, protruding road or groove being set, mould offer and that the processing technique such as design of core-pulling mechanism all become is simple, simplify manufacturing process greatly, thereby reduced production cost of products.In addition, because backstop 21 of the present utility model is provided with elastic opening 25 vertically, when assembling, only need nut 23 spirals are connected on the screw rod 22, again screw rod 22 is arranged in the shoulder hole of two fixing heads, 11,12 junctions 13, the backstop 21 of screw rod 22 front ends can be opened and keep off the respective side 131 that is against this junction 13 and be fixed under resilient force, reach the purpose of the axial displacement of restriction screw rod 22, operates very simple and convenient.
The foregoing description is preferred embodiment of the present utility model, only is used to illustrate this utility model, but not is used to limit this utility model.
Claims (10)
1, a kind of myopia prevention correcting sitting posture device, be provided with two fixing heads, be rotationally connected between two fixing heads, governor motion is positioned the junction between two fixing heads, be provided with position-limit mechanism and clamp device between this governor motion and the two fixing head junctions, it is characterized in that: an end of described governor motion is provided with backstop, and this backstop is passed the junction of described two fixing heads and kept off the respective side that is against this junction and axially fixes.
2, myopia prevention correcting sitting posture device as claimed in claim 1 is characterized in that: described governor motion reaches the nut that is connected with this screw spiral by a screw rod and constitutes, and described backstop is located at the front end of this screw rod.
3, myopia prevention correcting sitting posture device as claimed in claim 2, it is characterized in that: the other end of described screw rod is installed with adjusting knob, this adjusting knob and described backstop are arranged in the both sides of described two fixing head junctions respectively, and the restriction screw rod is with respect to the axial displacement of described two fixing head junctions.
4, myopia prevention correcting sitting posture device as claimed in claim 1, it is characterized in that: described backstop is provided with an elastic opening vertically at least, and the front end of this backstop is taper.
5, myopia prevention correcting sitting posture device as claimed in claim 4 is characterized in that: the cross section of described backstop is circular or scarce limit circle, breach circle.
6, myopia prevention correcting sitting posture device according to claim 1, it is characterized in that: the junction of described two fixing heads is provided with shoulder hole vertically, and described governor motion is arranged in this shoulder hole.
7, according to claim 2 or 6 described myopia prevention correcting sitting posture devices, it is characterized in that: the nut of described governor motion and the contacted end face of this shoulder hole are an inclined-plane, the corresponding end-faces of described shoulder hole also is an inclined-plane, the described position-limit mechanism of the common formation of the inclined-plane of nut and described shoulder hole respective ramp.
8, myopia prevention correcting sitting posture device according to claim 2 is characterized in that: be provided with axial guiding device between the shoulder hole of the junction of described nut and described two fixing heads.
9, myopia prevention correcting sitting posture device according to claim 8 is characterized in that: corresponding protruding road or the groove that matches with this chute that be provided with constitutes on the chute that described axial guiding device is axially arranged with by the nut upper edge or protruding road and the described shoulder hole.
10, myopia prevention correcting sitting posture device according to claim 1 is characterized in that: described two fixing heads are provided with the fixture of fixing big arm and forearm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204304 CN2467075Y (en) | 2001-02-26 | 2001-02-26 | Myopia proof sitting posture orthopaedic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204304 CN2467075Y (en) | 2001-02-26 | 2001-02-26 | Myopia proof sitting posture orthopaedic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2467075Y true CN2467075Y (en) | 2001-12-26 |
Family
ID=33625560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01204304 Expired - Fee Related CN2467075Y (en) | 2001-02-26 | 2001-02-26 | Myopia proof sitting posture orthopaedic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2467075Y (en) |
-
2001
- 2001-02-26 CN CN 01204304 patent/CN2467075Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |