CN201631607U - Portable device for preventing shortsightedness - Google Patents
Portable device for preventing shortsightedness Download PDFInfo
- Publication number
- CN201631607U CN201631607U CN2010201664505U CN201020166450U CN201631607U CN 201631607 U CN201631607 U CN 201631607U CN 2010201664505 U CN2010201664505 U CN 2010201664505U CN 201020166450 U CN201020166450 U CN 201020166450U CN 201631607 U CN201631607 U CN 201631607U
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- CN
- China
- Prior art keywords
- loop bar
- elevating lever
- connector
- head card
- prevention device
- 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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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model discloses a portable device for preventing shortsightedness, which is characterized by comprising a head clamp, a connecting piece, a lifting rod and a loop bar, wherein the head clamp penetrates through a through hole in one end of the connecting piece, and is connected with the connecting piece; the other end of the connecting piece is cylindrical, an cylindrical end surface is distributed with an undercut which is matched with an undercut at the cylindrical end surface of the lifting rod, and the connecting piece is fixedly connected with the lifting rod by screws, and the angle between the connecting piece and the lifting rod can be adjusted; and the lower end of the lifting rod is inserted into the loop bar, and flexibly, adjustably and fixedly connected with the loop bar. The portable device for preventing shortsightedness can adjust the sight distance according to the height of students, has simple structure, low cost and convenient carrying, and overcomes the defect that the existing device for preventing shortsightedness can not be popularized and applied.
Description
Technical field
This utility model relates to a kind of medical prevention apparatus, is specially a kind of portable pre-myopia prevention device.
Background technology
As everyone knows, the student is except that congenital myopia, and all the other major parts will not be all owing to notice that writing posture and excess eye-using cause the day after tomorrow.Especially nursery class, preschool class and primary grades student, they do not have strict space length when study, and secular wrong writing posture can make the student form pseudomyopia, forms true myopia in the course of time.In order to prevent student's visual deterioration, especially make nursery class, preschool class and primary grades student read a book, have when writing correct posture, keep suitable space length, the device of more existing in the market prevention myopia of student, but these device major parts all are to be fixed on the desk, use inconveniently, and the student just can play preventive effect before also must being sitting in the desk that this prevention myopia of student device is installed, and this has brought inconvenience for the student and the head of a family.
The utility model content
The technical problem that solves
For fear of the deficiencies in the prior art part, the utility model proposes a kind of portable pre-myopia prevention device.
Technical scheme
Technical characterictic of the present utility model is:
Portable pre-myopia prevention device comprises head card 1, connector 2, elevating lever 3 and loop bar 4; Connector 2 one ends are column type, and there is connecting hole at the center, and an end face of cylinder is distributed with stings tooth; Connector 2 other ends have through hole, and shape of through holes is identical with the cross sectional shape of head card 1, and head card 1 passes this through hole and is connected with connector 2; Elevating lever 3 upper ends are column type, and there is connecting hole at the center, and the connecting hole diameter is identical with the connecting hole diameter of connector 2 cylindrical ends, and an end face of elevating lever 3 upper end cylinders is distributed with stings tooth, cooperate with the tooth of stinging of connector 2 cylinder end faces; Loop bar 4 is a hollow-core construction, and elevating lever 3 lower ends are stretched in the loop bar 4 and with loop bar 4 and formed flexible adjustable fixedlying connected.
Described head card 1 is an open annular, and there is connecting band at the opening two ends; The cross sectional shape of head card 1 is a rectangle.
Some annular grooves are arranged vertically at elevating lever 3 bottoms, and along projection is arranged, projection cooperates with the annular groove of elevating lever 3 in loop bar 4 ports.
Beneficial effect
The portable pre-myopia prevention device that the utility model proposes can according to student's height regulate sighting distance, simple in structure, with low cost, easy to carry, overcome the defective that the pre existing myopia prevention device can not popularization and application.
Description of drawings
Fig. 1: structural representation of the present utility model (embodiment one);
Fig. 2: structural representation of the present utility model (embodiment two);
Fig. 3: the structural representation of connector;
Fig. 4: the structural representation of connector;
Fig. 5: the structural representation of expansion link (embodiment one);
Fig. 6: the structural representation of expansion link (embodiment one);
Fig. 7: the structural representation of expansion link (embodiment two);
Fig. 8: the structural representation of expansion link (embodiment two);
Wherein, 1, head card; 2, connector; 3, elevating lever; 4, loop bar; 5, angle modulation screw; 6, spacing latch; 7, rubber sleeve.
The specific embodiment
Now in conjunction with the accompanying drawings this utility model is further described:
Embodiment 1:
With reference to accompanying drawing 1, this utility model comprises head card 1, connector 2, elevating lever 3 and loop bar 4; Head card 1 is an open annular, opening part is for pasting band, can adjust the size of head card according to the size of student's head, the cross sectional shape of head card 1 is a rectangle, head card 1 rectangular through-hole of passing connector 2 one ends is connected with connector 2, and connector 2 can be blocked on 1 at head slide, thereby adjust the position of connector 2 on head card 1; With reference to accompanying drawing 3 and accompanying drawing 4, the other end of connector 2 is a column type, stings tooth on the cylinder end face, and there is threaded connection hole the cylindrical center position; With reference to accompanying drawing 5 and accompanying drawing 6, elevating lever 3 long 15cm, the upper end column type, sting tooth on the cylinder end face, cooperate with the tooth of stinging on the connector 2, there is threaded connection hole the cylindrical center position, diameter is identical with the connecting hole diameter of connector 2 cylinder end faces, elevating lever 3 can be fixedlyed connected with connector 2 by angle modulation screw 5, and sting cooperation between the tooth by adjusting and can adjust angle between elevating lever 3 and the connector 2, both can slightly regulate sighting distance, more comfortable when the student is worn, elevating lever 3 lower side evenly have 10 spacing holes vertically; Loop bar 4 long 20cm, be hollow-core construction, there is spacing latch 6 end, elevating lever 3 is inserted in the loop bar 4, by spacing latch 6 elevating lever 3 is fixedlyed connected with loop bar 4, and by selecting different spacing holes can adjust the total length of elevating lever 3 and loop bar 4, thereby satisfy requirement according to different students; Rubber sleeve 7 is also overlapped in loop bar 4 bottoms, prevents that the student from running into own or other people in use.
In use, head card 1 is enclosed within on student's head, buckle well and paste band, according to student's height, and requirement such as normal sighting distance, adjust the angle of the length overall of elevating lever 3 and loop bar 4 and elevating lever 3 and connector 2 by spacing latch 6 and angle modulation screw 5, determine student's optimum visual attitude, the student just can have on this pre-myopia prevention device and learnt like this.
Embodiment 2:
With reference to accompanying drawing 2, this utility model comprises head card 1, connector 2, elevating lever 3 and loop bar 4; Head card 1 is an open annular, opening part is for pasting band, can adjust the size of head card according to the size of student's head, the cross sectional shape of head card 1 is a rectangle, head card 1 rectangular through-hole of passing connector 2 one ends is connected with connector 2, and connector 2 can be blocked on 1 at head slide, thereby adjust the position of connector 2 on head card 1; With reference to accompanying drawing 3 and accompanying drawing 4, the other end of connector 2 is a column type, stings tooth on the cylinder end face, and there is threaded connection hole the cylindrical center position; With reference to accompanying drawing 5 and accompanying drawing 6, elevating lever 3 long 15cm, the upper end column type, sting tooth on the cylinder end face, cooperate with the tooth of stinging on the connector 2, there is threaded connection hole the cylindrical center position, diameter is identical with the connecting hole diameter of connector 2 cylinder end faces, elevating lever 3 can be fixedlyed connected with connector 2 by angle modulation screw 5, and sting cooperation between the tooth by adjusting and can adjust angle between elevating lever 3 and the connector 2, both can slightly regulate sighting distance, more comfortable when the student is worn, elevating lever 3 bottoms evenly have 10 annular grooves vertically; Loop bar 4 long 20cm, be hollow-core construction, there is projection on the edge in the end, elevating lever 3 is inserted in the loop bar 4, by cooperating along the annular groove of projection in the loop bar 4 with elevating lever 3 bottoms, elevating lever 3 is fixedlyed connected with loop bar 4, and can adjust the total length of elevating lever 3 and loop bar 4, thereby satisfy requirement according to different students by external force plug elevating lever 3; Rubber sleeve 7 is also overlapped in loop bar 4 bottoms, prevents that the student from running into own or other people in use.
Claims (4)
1. a portable pre-myopia prevention device is characterized in that: comprise head card (1), connector (2), elevating lever (3) and loop bar (4); Connector (2) one ends are column type, and there is connecting hole at the center, and an end face of cylinder is distributed with stings tooth; Connector (2) other end has through hole, and shape of through holes is identical with the cross sectional shape of head card (1), and head card (1) passes this through hole and is connected with connector (2); Elevating lever (3) upper end is a column type, and there is connecting hole at the center, and the connecting hole diameter is identical with the connecting hole diameter of connector (2) cylindrical end, and an end face of elevating lever (3) upper end cylinder is distributed with stings tooth, cooperates with the tooth of stinging of connector (2) cylinder end face; Loop bar (4) is a hollow-core construction, and elevating lever (3) lower end is stretched in the loop bar (4) and with loop bar (4) and formed flexible adjustable fixedlying connected.
2. a kind of portable pre-myopia prevention device according to claim 1 is characterized in that: described head card (1) is an open annular, and there is connecting band at the opening two ends; The cross sectional shape of head card (1) is a rectangle.
3. a kind of portable pre-myopia prevention device according to claim 1 and 2, it is characterized in that: elevating lever (3) lower side has some spacing holes vertically, there is spacing latch loop bar (4) port, and elevating lever (3) lower end is stretched in the loop bar (4) and fixedlyed connected with loop bar (4) by spacing latch.
4. a kind of portable pre-myopia prevention device according to claim 1 and 2, it is characterized in that: some annular grooves are arranged vertically at elevating lever (3) bottom, and along projection is arranged, projection cooperates with the annular groove of elevating lever (3) in loop bar (4) port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664505U CN201631607U (en) | 2010-04-22 | 2010-04-22 | Portable device for preventing shortsightedness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664505U CN201631607U (en) | 2010-04-22 | 2010-04-22 | Portable device for preventing shortsightedness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201631607U true CN201631607U (en) | 2010-11-17 |
Family
ID=43076079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201664505U Expired - Fee Related CN201631607U (en) | 2010-04-22 | 2010-04-22 | Portable device for preventing shortsightedness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201631607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440872A (en) * | 2020-03-27 | 2021-09-28 | 上海一禅智能科技有限公司 | Multi-angle three-dimensional connecting structure |
-
2010
- 2010-04-22 CN CN2010201664505U patent/CN201631607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440872A (en) * | 2020-03-27 | 2021-09-28 | 上海一禅智能科技有限公司 | Multi-angle three-dimensional connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20130422 |